WO2014014038A1 - Magnetic monofilament, magnetic brush, and production method for said magnetic monofilament and said magnetic brush - Google Patents

Magnetic monofilament, magnetic brush, and production method for said magnetic monofilament and said magnetic brush Download PDF

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Publication number
WO2014014038A1
WO2014014038A1 PCT/JP2013/069449 JP2013069449W WO2014014038A1 WO 2014014038 A1 WO2014014038 A1 WO 2014014038A1 JP 2013069449 W JP2013069449 W JP 2013069449W WO 2014014038 A1 WO2014014038 A1 WO 2014014038A1
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WO
WIPO (PCT)
Prior art keywords
magnetic
monofilament
polymer
brush
resin
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PCT/JP2013/069449
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French (fr)
Japanese (ja)
Inventor
一人 大植
進吾 吉富
Original Assignee
ユニプラス滋賀株式会社
アラム株式会社
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Priority to JP2014525855A priority Critical patent/JP6192643B2/en
Publication of WO2014014038A1 publication Critical patent/WO2014014038A1/en

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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/04—Pigments
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B15/00—Other brushes; Brushes with additional arrangements
    • A46B15/0002—Arrangements for enhancing monitoring or controlling the brushing process
    • A46B15/0016—Arrangements for enhancing monitoring or controlling the brushing process with enhancing means
    • A46B15/0026—Arrangements for enhancing monitoring or controlling the brushing process with enhancing means with a magnetic means
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/02—Bristles details
    • A46D1/0207—Bristles characterised by the choice of material, e.g. metal
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/90—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyamides
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters

Definitions

  • the present invention relates to a magnetic monofilament, a magnetic brush using the magnetic monofilament, and a manufacturing method thereof.
  • the container, the production line, and the production machine / equipment for storing the product are regularly cleaned, but in that case, various brushes must be used.
  • the filament fragments when the filament fragments are mixed in a horizontal state, it is relatively easy to find, but when the food is in a powder form, the filament fragments should exist in a vertical or diagonal direction. In such a case, detection is extremely difficult.
  • the cleaning brush filament, flocking table or handle is damaged or torn and enters the food, it is detected by metal detection, but there are several production lines in the food factory and the detected filament If you know which line the flocking table and handle are mixed in, it will be easier to take measures in terms of factory quality and safety management.
  • the blade has a spatula for food in which black iron oxide powder is mixed in the synthetic resin layer or rubber layer of the blade (Patent Document 1), and has a portion formed of a resin material containing a magnetic material.
  • An instrument Patent Document 2 has been proposed.
  • Patent Documents 1 and 2 are for detecting the presence of a foreign object with a metal detector when a broken part is mixed in the food as a foreign object.
  • a metal detector when a broken part is mixed in the food as a foreign object.
  • it may not be detected depending on the status and size of the foreign substance mixed in the food.
  • the food is powdery, such as flour or powdered milk, it is difficult to detect even with a metal detector when the filament fragments are present upright in the powdery food as described above. .
  • the magnetic material is blended in an amount of 20 to 60% by weight, and if the magnetic material is blended at such a high content, the flexibility of the filament is increased.
  • the magnetic material is not sufficient in strength, and it is difficult to obtain a thickness suitable for various brushes even when spinning.
  • a polymer monofilament contains a magnetic material having a saturation magnetization in a specific range
  • the filament fragments may break down or break down in the food. Even when it stands in a slanted or curved state, it can be detected at a high rate with a metal detector, and the strength of the brush filament is maintained, and monofilaments of various thicknesses
  • the present invention has been completed by finding that it can be spun so that
  • the inventors have found that if the saturation magnetization in the monofilament is 3 emu / g, It is possible to detect an upright monofilament fragment of about 25 mm, and further, when the saturation magnetization is in the vicinity of 7 emu / g, there is an inflection point of the detectable monofilament length, and when the saturation magnetization is 7 emu / g or less, the saturation magnetization It has been found that the length of a vertically upstanding monofilament fragment that can be detected by a metal detector changes greatly with a slight change in.
  • the length of the monofilament that can be detected by the metal detector is greatly reduced because the length of the monofilament that is detected by the metal detector changes greatly with only a slight change in the content of the magnetic substance. If the saturation magnetization is 7 emu / g or more, even if there is a variation in the content of the magnetic material and there is some change in the value of the saturation magnetization, the detection length hardly changes, This means that broken brush hair can be detected stably and foreign matter contamination accidents can be prevented.
  • the present invention includes a polymer monofilament and a magnetic material contained in the polymer monofilament, and the magnetic material is dispersed in the polymer monofilament so that the saturation magnetization is 3 emu / g or more. It is the magnetic monofilament characterized by becoming.
  • the magnetic monofilament has a diameter of 0.1 to 1.0 mm, a tensile strength of 1.5 cN / dtex or more, and an elongation of 15 to 35%.
  • the polymer material constituting the polymer monofilament is at least one of a polyester resin and a polyamide resin
  • the magnetic material is a transition metal magnetic material, a transition metal alloy magnetic material, an intermetallic compound magnetic material, It is characterized by being one or more of oxide magnetic materials.
  • the present invention is characterized in that the magnetic monofilament is further colored with an inorganic pigment by further containing an inorganic pigment in the magnetic monofilament.
  • the present invention is a magnetic brush comprising the magnetic monofilament and a flocking table for flocking the magnetic monofilament, wherein the magnetic monofilament is fixed to the flocking table.
  • a flocking table for flocking magnetic monofilament includes a thermoplastic resin and a magnetic material, and the flocking table contains a magnetic material.
  • the present invention is characterized in that the magnetic monofilament colored with the inorganic pigment is planted on a thermoplastic resin planting table containing the inorganic pigment and the magnetic material.
  • the present invention is a method for producing a magnetic monofilament comprising a polymer monofilament and a magnetic material dispersed in the polymer monofilament and having a saturation magnetization of 3 emu / g or more, A mixing step of mixing the polymer substance constituting the monofilament and the magnetic powder in a fluidized state; A spinning step of spinning the mixture of the polymer substance and the magnetic powder mixed in the mixing step; And a stretching process for stretching the monofilament obtained in the spinning process.
  • the present invention is characterized in that, in the mixing step, in addition to the polymer substance and the magnetic powder, an inorganic pigment is further mixed in a fluid state.
  • a magnetic substance is contained in the polymer monofilament so that the saturation magnetization of the magnetic monofilament is 3 emu / g or more, even a monofilament fragment existing in various states can be detected by a metal detector. Can be detected.
  • the magnetic monofilament has a diameter of 0.1 to 1.0 mm, a tensile strength of 1.5 cN / dtex or more, and an elongation of 15 to 35%.
  • the yarn diameter it has excellent elasticity, durability and chemical resistance regardless of the yarn diameter, and even a small piece of about 10 to 5 mm can be detected by a metal detector.
  • the polymer material constituting the monofilament is at least one selected from polyamide resins and polyester resins, and the magnetic material is a transition metal magnetic material, a transition metal alloy magnetic material, or an intermetallic compound. Since it is at least one of a magnetic substance and an oxide magnetic substance, it has excellent elasticity, durability and chemical resistance even when it is a magnetic monofilament, and the magnetic substance has a relatively low content and is magnetic. The desired saturation magnetization can be achieved as a monofilament.
  • the magnetic monofilament is further colored with the inorganic pigment by further including the inorganic pigment in the magnetic monofilament, so the magnetic monofilament fragment detected by the metal detector is mixed in which line. This makes it easier to take measures in terms of factory quality and safety management.
  • the magnetic monofilament is a magnetic brush in which the magnetic monofilament is implanted
  • the magnetic brush can be used as a cleaning brush for packaging materials, food production equipment, and food production lines. Even when a filament breaks or breaks and a monofilament fragment is mixed in the food, it can be detected by a metal detector, and the fragment can be removed.
  • the flocking table for flocking the magnetic monofilament contains a thermoplastic resin and a magnetic material, and the flocking table contains the magnetic material. Even when broken and mixed in food, the fragments can be detected by a metal detector.
  • 3 is a graph showing the relationship between the saturation magnetization value of the magnetic monofilament obtained in Example 1 and the detected filament length. It is the graph which showed the relationship between the value of the saturation magnetization of the magnetic monofilament obtained in Example 2, and the length of the detected filament. It is a figure which shows the magnetic monofilament which consists of the magnetic monofilament of this invention, and a flocking table. It is a figure which shows the magnetic hand brush which consists of the magnetic monofilament of this invention colored with the inorganic pigment, the hand part containing a magnetic body and an inorganic pigment, and a flocking table. It is a figure which shows the magnetic brush with a long handle which consists of the magnetic monofilament of this invention, the flocking table containing a magnetic body, and a long handle part.
  • the magnetic monofilament of the present invention is a magnetic monofilament comprising a polymer monofilament and a magnetic material contained in the monofilament, wherein the magnetic material is dispersed so that the saturation magnetization is 3 emu / g or more.
  • the length of the magnetic monofilament is the vertical length of the magnetic monofilament upright in the vertical direction unless otherwise specified.
  • the magnetic monofilament upright in the vertical direction has a small area that affects the magnetic field detected by the metal detector, but the length of the magnetic monofilament detected in the horizontal direction is vertical even if it has the same saturation magnetization. Significantly shorter than the direction.
  • FIG. 1 is a graph showing the relationship between the saturation magnetization value of the magnetic monofilament 2 of the present invention using polybutylene terephthalate (PBT) and the detected length of the magnetic monofilament 2.
  • PBT polybutylene terephthalate
  • the relationship between the minimum length of the monofilament 2 fibers detected by the metal detector and the saturation magnetization is the inflection point at the detected monofilament length of 5.5 mm and the saturation magnetization of 8 emu / g. It is shown that even a very small monofilament fragment of 5.5 mm can be detected when the saturation magnetization is 8 emu / g.
  • the saturation magnetization is 8 emu / g or more
  • an extreme change occurs in the minimum length to be detected.
  • the saturation magnetization is 8 emu / g or more
  • the length of the monofilament fiber detected by the metal detector starts from 5.5 mm. It can be seen that it is even shorter.
  • the saturation magnetization value exhibited by the monofilament depends on the concentration of the magnetic powder contained and is in a substantially proportional relationship. This is completely unexpected.
  • FIG. 2 is a graph showing the relationship between the saturation magnetization value of the magnetic monofilament of the present invention using nylon 6 and nylon 66 copolymer polyamide resin and the detected filament length.
  • the saturation magnetization can be detected in the vicinity of 7 emu / g, and when the saturation magnetization is 7 emu / g, it is 6.5 mm. It shows that even small monofilament fragments can be detected.
  • the length detected by the metal detector changes greatly with only a slight change in the content of the magnetic material
  • the content of the magnetic material can be set even if it is set to detect a broken magnetic monofilament of 20 mm or more.
  • the detectable length is 25 mm.
  • the saturation magnetization value is 7 emu / g or more, the detection length hardly changes even if there is a slight change in the saturation magnetization value.
  • the saturation magnetization should be 7 emu / g or more.
  • the saturation magnetization at the inflection point is slightly different because of the difference in specific gravity between the polyester resin and the polyamide resin used for the monofilament.
  • the saturation magnetization of the magnetic monofilament is 3 emu / g or more.
  • the saturation magnetization is preferably 5 to 22 emu / g, more preferably 6 to 15 emu / g, and particularly preferably 7 to 15 emu / g.
  • the saturation magnetization is less than 3 emu / g, the length of the magnetic monofilament fragment detected by the metal detector becomes large, and there is a possibility that a fragment of less than 20 mm cannot be detected. If the saturation magnetization exceeds 40 emu / g, although depending on the magnetic material, the content of the magnetic material in the polymer monofilament is too large to spin or not spin to the magnetic monofilament. In terms of durability and the like, a sufficient monofilament for a brush cannot be obtained.
  • FIG. 3 is a view showing a magnetic brush composed of the magnetic monofilament of the present invention and a flocking table.
  • the magnetic brush 1 is formed of a magnetic monofilament 2 and a flocking table 3 on which the magnetic monofilament 2 is flocked.
  • the diameter of the magnetic monofilament 2 is 0.1 to 1.0 mm, preferably 0.2 to 0.8 mm, and particularly preferably 0.3 to 0.8 mm.
  • the saturation magnetization per unit length in the magnetic monofilament 2 varies depending on the content of the magnetic material and the yarn diameter of the magnetic monofilament 2, but is usually 0.02 to 0.13 emu per 1 cm of filament, preferably 0. 03 to 0.1 emu.
  • the tensile strength of the magnetic monofilament 2 is 1.5 cN / dtx or more.
  • a preferred strength is 1.5 to 4.5 cN / dtx
  • a particularly preferred strength is 1.7 to 4.0 cN / dtx
  • a most preferred strength is 1.7 to 3.7 cN / dtx.
  • the elongation is 15 to 35%, preferably 15 to 35%, particularly preferably 20 to 35%, and most preferably 20 to 30%.
  • the magnetic monofilament 2 may have a circular cross section, an elliptical shape, or a polygonal shape such as a square, pentagon, or star shape. It can be made into the most suitable shape for cleaning of an apparatus and an instrument.
  • the magnetic monofilament 2 may be a double-layered monofilament in which the core portion is a magnetic monofilament and the sheath portion is spun with a polymer material that does not contain a magnetic material. Further, the surface of the monofilament containing the spun magnetic material may be used. The surface may be coated with a water-dispersible resin or a solvent-based resin to improve physical properties and prevent the magnetic material from falling off.
  • the resin for surface coating may be appropriately selected from resins having good compatibility and adhesiveness with the thermoplastic resin used for the magnetic monofilament 2, and acrylic resin, acrylate copolymer resin, ethylene / acryl copolymer resin, urethane Resins, vinyl acetate resins, water-dispersed polyester copolymer resins, alcohol-soluble polyamide-modified resins, silicon resins, polyamide copolymer resins, and the like are used.
  • the resin can be coated on the surface of the monofilament by once contacting with the resin solution without winding or after drying in a dryer.
  • the magnetic monofilament 2 of the present invention may contain a dispersant so that the magnetic material is uniformly dispersed, and may further contain a colorant for improving visibility.
  • the polymer monofilament containing a magnetic material is a polymer monofilament composed of at least one selected from polyester resins and polyamide resins, and when the magnetic monofilament 2 is spun, the magnetic monofilament 2 As the above, those capable of exhibiting the above properties are preferable.
  • the polyester-based resin and polyamide-based resin preferably have a tensile strength of 1.5 cN / dtx or more due to stretching treatment or the like when spinning into a filament.
  • filaments having a strength of 1.7 to 4.0 cN / dtx, more preferably 1.7 to 3.7 cN / dtx are more preferable.
  • the elongation is preferably 15% or more, and among them, the elongation is more preferably 15 to 35%, particularly preferably the elongation is 20 to 35%, and most preferably the elongation is 20 to 30%. Is.
  • polyester resin examples include polyethylene terephthalate ⁇ ⁇ , polytrimethylene terephthalate, polybutylene terephthalate (PBT), polyethylene naphthalate, polybutylene naphthalate, and among these, polytrimethylene terephthalate or polybutylene terephthalate is preferable. These blends are also preferred.
  • polyamide-based resin examples include nylon 611, nylon 11, nylon 12, nylon 66, nylon 610, nylon 612, and copolymer nylon. Among these, nylon 612 and nylon 610 are preferable.
  • the magnetic material used in the present invention can be dispersed in a polyester-based resin and a polyamide-based resin (hereinafter referred to as a polymer substance including a polyester-based resin and a polyamide-based resin) when the filament 2 is spun.
  • a polymer substance including a polyester-based resin and a polyamide-based resin hereinafter referred to as a polymer substance including a polyester-based resin and a polyamide-based resin
  • Any material having paramagnetism or ferromagnetism can be used.
  • Such magnetic materials include transition metal magnetic materials, transition alloy magnetic materials, intermetallic compound magnetic materials, and oxide magnetic materials.
  • transition metal magnetic materials include metals such as iron, cobalt, nickel, and chromium.
  • transition metal alloy magnetic material include iron-cobalt, iron-nickel, iron-nickel-cobalt-aluminum, manganese-aluminum-carbon magnet, martensite series, ferrite series, and austenite / ferrite series stainless steel.
  • stainless steel include martensitic stainless steel such as SUS403, 410, 410S, 420J1, 420J2, 440A, SUS405, 410L, 429, 430 (including LX, J1L), 434, 436L, 445J1, 445J2, 444, 447J1.
  • ferrite stainless steels such as SUS329J1, 329J3L, and 329J4L.
  • oxide magnetic material include ⁇ -iron oxide, triiron tetroxide, maghemite, barium magnet, and ferrite magnet.
  • iron oxide is preferable, and triiron tetroxide is most preferable among the iron oxides.
  • Iron oxide tetroxide has long been used as a black pigment, has high heat resistance, is an oxide and does not oxidize and rust, and does not decompose during spinning. Is not rusted and is also preferably used in the present invention.
  • martensitic, ferritic or austenitic / ferritic stainless steel has a gray hue, and when dispersed in the resin constituting the magnetic monofilament 2, the magnetic monofilament 2 has a light gray hue. 2 is easy to color. For this reason, when it is desired to color the entire magnetic brush, such as the magnetic monofilament 2 of the present invention and the flocking table 3 on which the monofilament 2 is flocked, the stainless steel is particularly preferably used. These magnetic materials can be used alone or in combination of two or more.
  • the magnetic material is preferably used in the form of powder and has an average particle size of 0.01 to 150 ⁇ m, preferably 0.01 to 50 ⁇ m, and particularly preferably 0.01 to 10 ⁇ m.
  • the magnetic material Taking triiron tetroxide as an example of the magnetic material, those having a particle size in the range of 0.01 to 10 ⁇ m are preferable. If the particle size is 5 ⁇ m or more, blending with a polymer substance will cause many yarn breaks during spinning, making it difficult to manufacture industrially and low yarn strength. However, there is a problem that the brush bristles open and the cleaning properties are deteriorated and the brush bristles are easily broken.
  • the magnetic material is manufactured by mechanical methods such as mechanical pulverization methods, mill pulverization methods, mechanical alloying methods, chemical methods such as reduction and electrolysis, atomization methods such as water atomization methods and gas atomization methods. Can do.
  • a spherical powder that is made into particles by the water atomization method is preferable.
  • the spherical powder preferably has a lower particle size, but if the particle size is 3 ⁇ m or less, the production efficiency is poor and the product becomes very expensive.
  • the spherical powder that has been made into particles by the water atomization method is less likely to agglomerate between metal powders and is uniformly dispersed in the resin that constitutes the polymer monofilament.
  • the magnetic powder of the present invention When the monofilament diameter is in the range of 0.1 to 1.0 mm, there is no decrease in spinnability, and a magnetic monofilament 2 with little decrease in strength is obtained.
  • the magnetic monofilament 2 of the present invention includes a mixing step of mixing a polymer material constituting the monofilament and a magnetic powder in a fluidized state, a spinning step of spinning the mixture of the polymer material and the magnetic powder, It can manufacture by implementing sequentially the extending
  • the polymer substance and the magnetic substance are mixed in a fluid state. Specifically, the polymer is heated and melted, and the magnetic powder is added and mixed to form a melt of the polymer and the magnetic material, or the polymer and the magnetic powder are heated while being mixed. And then melted and mixed to obtain the melt.
  • a high-concentration master batch is manufactured by kneading and molding a polymer material and a magnetic material with a twin-screw kneading extruder, etc., and the polymer material is used so that the magnetic material has a predetermined concentration during spinning.
  • a method for diluting and a method for producing and spinning a master batch containing a magnetic substance at a predetermined concentration In the present invention, these methods can be used.
  • the dispersibility of iron oxide is improved by adding various dispersants. Furthermore, in order to increase the adhesion between the polymer substance and the magnetic substance, a magnetic substance surface-treated with a silane coupling agent, a titanate coupling agent, a zirconium coupling agent or the like can be used.
  • the temperature at which the polymer substance is melted by heating varies depending on the degree of polymerization of the polymer substance and the presence or absence of crosslinking.
  • the polymer substance is, for example, polybutylene terephthalate, it is easily at, for example, 250 to 280 ° C. Can be mixed.
  • the blending ratio of the high molecular substance and the magnetic substance varies depending on the combination of the high molecular substance and the magnetic substance, but is not particularly limited as long as the magnetic monofilament 2 has a predetermined saturation magnetization. It is 5 to 33 wt%, preferably 6 to 24 wt%, more preferably 7 to 20 wt%, and particularly preferably 8 to 20 wt% with respect to the polymer substance.
  • the high molecular substance is a polyester resin and the case where it is a polyamide resin.
  • the content of the magnetic substance is 5 to 30 wt%, preferably 6 to 20 wt%, more preferably 7 to 20 wt%, and particularly preferably 8 to 20 wt%. .
  • the polymer material is polybutylene terephthalate and the magnetic material is triiron tetroxide, it is 10% with respect to the polymer material.
  • the magnetic monofilament 2 (diameter: 0.5 mm) having a saturation magnetization of 7 emu / g can be obtained by blending the magnetic material.
  • the saturation magnetization is 7 emu by adding 12% of the magnetic substance to the polymer substance.
  • G magnetic monofilament 2 (diameter 0.5 mm).
  • spinning can be performed by a method used in spinning of a polymer material.
  • Examples of the spinning method include a melt spinning method, a dry spinning method, a wet spinning method, a gel spinning method, and a liquid crystal spinning method.
  • the magnetic monofilament 2 of the present invention can be produced by extruding the melt from the die into a fiber, cooling and solidifying. Cooling can be performed by a method such as air cooling or a liquid bath, and the cooling method may be selected depending on the setting of the polymer substance, the thickness of the filament 2, the viscosity, and the like. Further, there is a method in which a polymer substance and a magnetic material are mixed with a twin-screw kneading extruder and extruded and spun as it is, and spinning may be performed by this method.
  • the monofilament taken up at a spinning speed of 20 to 100 m / min is drawn once or after being taken up continuously.
  • the spun magnetic monofilament 2 is stretched so that the magnetic monofilament 2 becomes a monofilament having appropriate strength and the like. Stretching can be performed in a single stage or multiple stages. Further, as a method of applying heat necessary for stretching into a filament shape, a known method such as roll heating, steam approval, hot liquid heating, dry heat heating or the like may be used.
  • the polymer substance is polybutylene terephthalate, it is preferably stretched under a condition of 2.0 to 5.0 times.
  • components such as a smoothing agent and a colorant can be added to the magnetic monofilament 2 of the present invention.
  • Examples of the smoothing agent include lithium stearate and calcium stearate.
  • examples of the colorant include inorganic pigments commonly used or widely used in this technical field. According to the knowledge obtained by the present inventors, when an organic pigment is used as a colorant, stretched spots are generated at the time of stretching, resulting in a knot yarn, and a uniform filament cannot be obtained. .
  • inorganic pigments examples include white inorganic pigments, red inorganic pigments, brown inorganic pigments, yellow inorganic pigments, black inorganic pigments, purple inorganic pigments, green inorganic pigments, and blue inorganic pigments.
  • White inorganic pigments include titanium dioxide. , Titanium dioxide-coated mica, zinc oxide, molybdenum white, lithopone, barite, calcium carbonate, lead white, talc and the like.
  • red inorganic pigments include iron oxide (Bengara), molybdenum red, iron titanate, silver vermilion, cadmium red, and antimony red.
  • brown inorganic pigment examples include ⁇ -iron oxide.
  • yellow inorganic pigments include yellow iron oxide, ocher, titanium yellow, cadmium yellow, strontium yellow, and zinc chromate.
  • black inorganic pigments include black iron oxide, carbon black, low-order titanium oxide, and titanium black.
  • purple inorganic pigments include mango violet and cobalt violet.
  • green inorganic pigments include emerald green, chromium oxide, chromium hydroxide, and cobalt titanate.
  • blue inorganic pigments include ultramarine blue and bitumen.
  • titanium oxide coated bismuth oxychloride titanium oxide coated talc, colored titanium oxide coated mica, bismuth oxychloride, pearl pigments such as fish scale foil, and metal powder pigments such as aluminum powder and copper powder are also used. can do.
  • These inorganic pigments may be used alone or in combination of two or more so as to obtain a desired color tone.
  • These inorganic pigments can be used to obtain a colored magnetic monofilament 2 by melt-spinning a suitable amount of a pigment master batch chip when melt spinning a polymer material chip containing a magnetic material.
  • the resin used for the inorganic pigment masterbatch is preferably a masterbatch in which the pigment is dispersed with the same resin as that used for the magnetic monofilament 2.
  • the polymer material constituting the magnetic monofilament 2 is polybutylene terephthalate.
  • the resin used in the masterbatch is preferably a polyester masterbatch from the standpoint of compatibility, and yarn breakage during spinning and pigmentation spots on the pigment are unlikely to occur. It has the characteristic called.
  • Examples of the magnetic brush 1 using the magnetic monofilament 2 of the present invention include a brush obtained by flocking the magnetic monofilament 2 on a flocking table 3.
  • flocking means holding the magnetic monofilament 2 so as not to be easily detached such as bonding, fixing, fusing, and implanting the magnetic monofilament 2 to the flocking table 3, and the means, method, and order thereof are not limited. Absent.
  • an implantation brush in which the magnetic monofilament 2 of the present invention is implanted in a flocking table 3 capable of opening a hole such as resin, metal, leather, rubber, and wood, and further, an implantation roll brush,
  • An implanted board brush may be used.
  • These brushes may be shaft-type roll brushes in which the shaft, the filament 2 and the flocking table 3 are integrated, or may be split-type roll brushes in which the flocking table 3 of the filament 2 is divided into two. May be.
  • the magnetic monofilaments 2 are arranged more generally than arrangements commonly used in this technical field, for example, parallel planting, staggered planting, and staggered planting. Staggered planting, spiral planting, lattice planting, etc. can be adopted.
  • the flocking table is a thermoplastic resin
  • the flocking table in the case of a hand brush, the hand member, the magnetic material is also contained in the brush, and the magnetic monofilament and the flocking table and the hand member both have magnetism. It can also be.
  • the length of the magnetic monofilament 2 is cut according to the purpose, and a thermoplastic resin injection-molded into a desired shape is magnetized in the flocked hole of the flocking table 3.
  • the monofilament 2 can be produced by flocking, fixing the monofilament 2 to the resin with a metal hook, and adjusting the height and outer diameter of the magnetic monofilament 2 implanted in the monofilament 2 flocking table 3.
  • FIG. 4 is a diagram showing a magnetic hand brush composed of a magnetic monofilament of the present invention colored with an inorganic pigment, a hand part containing a magnetic substance and an inorganic pigment, and a flocking table.
  • the magnetic brush 11 includes a flocking table 31 and a hand member 4, and the flocking table 31 and the hand member 4 are made of a thermoplastic resin containing a magnetic material and an inorganic pigment, and the entire brush is made of an inorganic pigment. It is a colored magnetic hand brush.
  • thermoplastic resin may be any resin that can be injection molded, and is preferably a thermoplastic resin that is excellent in moldability and excellent in impact strength. Further, when the magnetic monofilament 2 is planted, it is preferable that the thermoplastic resin be melted and bonded to the magnetic monofilament 2, so that a resin close to the melting point of the polymer substance constituting the magnetic monofilament 2 is appropriately selected and used. Is more preferable.
  • thermoplastic resins include polyolefin resins, polyester resins, polyamide resins, fluorine resins, polyether resins, polycarbonate resins, polyacetal resins, polyacrylic resins, ABS resins, polystyrene resins, and the like. It is done.
  • polystyrene resin examples include polyethylene and polypropylene.
  • polyester resin examples include polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, and copolymerized polyesters thereof.
  • polyamide-based resin examples include nylon 611, nylon 11, nylon 1212, nylon 66, nylon 610, nylon 612, and copolymer nylon.
  • fluororesin examples include polyvinylidene fluoride (PVdF) and ethylene / tetrafluoroethylene copolymer (ETFE).
  • PVdF polyvinylidene fluoride
  • ETFE ethylene / tetrafluoroethylene copolymer
  • vinyl resins such as polyvinyl acetate, polyvinyl chloride, and polyvinylidene chloride may be used.
  • Polyacetal, polycarbonate, polyacryl, ABS, and polystyrene are also thermoplastic resins and can be suitably used. Furthermore, modified polyphenylene ether (m-PPE) can also be used.
  • m-PPE modified polyphenylene ether
  • thermoplastic resins may be used as a mixture, or may be a copolymer obtained by copolymerizing monomers constituting each polymer, or a polymer alloy. If it is not lost, it can be suitably used.
  • Examples of such include vinyl chloride-vinyl acetate copolymer (trade name: Vignon HH, the same: Klehalon), and acrylonitrile-vinyl chloride copolymer.
  • polyester resin nylon resin, polyolefin resin, polycarbonate resin, and ABS resin are preferable, and polyethylene or polypropylene is particularly preferable.
  • the inorganic pigment can be added to these resins, and the color of the brush holding member can be changed to the same color as the brush bristles. This allows food plants to use different cleaning brushes for each line. In the unlikely event that the brush bristles come off or break, or the handle is damaged and mixed with food, it is detected by metal detector inspection, and the mixed broken bristles or broken handle It becomes possible to mix in which line by the hue of the color, and it becomes easy to take measures against contamination by food factories.
  • the magnetic brush 11 in which the magnetic monofilament 21 is planted on the thermoplastic resin planting table 31 can be manufactured as follows.
  • the magnetic monofilament 21 of the present invention is subjected to bristle processing to make brush hair after spinning.
  • the monofilament 2 is continuously set by a dry heat setting machine while moving the raw yarn in order to correct the winding habit of the raw yarn, and is then wound around a tow-shaped fiber bundle on a square wrinkle by the winding machine. .
  • the predetermined tow-shaped fiber bundle is obtained, the two end faces of the square are cut off from the winding machine, the tow-shaped fiber bundle is hung on the scissors, and the magnetic monofilament 2 is straight tow-shaped using a comb. Do the combs in a bundle.
  • this tow-shaped fiber bundle is wound in a spiral shape on the outer periphery of the fiber bundle with glued paper using a paper winding machine to form one paper-wrapped fiber bundle (hank). After drying the hank, the hank is cut to a length corresponding to the length of the brush hair and sent to the brush manufacturing process.
  • the cut hank is planted on the planting table 31 with an automatic planting machine.
  • the well-known method normally performed by brush manufacture should just be used for flocking, and the joining of the brush bristles and the resin constituting the flocking table 31 is, for example, a retaining member (a brass piece, a stainless piece, a hard wire called a flat wire).
  • a flat wire flocking method in which the hair bundle is folded in two with a resin piece, etc., one end of the hair bundle is melt-bonded by means of heat or the like, and the head portion resin is placed in a state where this joint portion faces the mold.
  • An in-mold flocking method for filling and fixing, a hot melt flocking method for melting and bonding one end of the hair bundle and the head portion by means such as heat may be used.
  • FIG. 5 is a diagram showing a long-handled magnetic brush 13 comprising the magnetic monofilament 22 of the present invention, a flocking table 32 containing a magnetic material, and a long handle portion 5.
  • the magnetic monofilament 22 and the flocking table 32 of the magnetic brush 13 with long handle can be manufactured by the same material and method as described above, and the long handle portion 5 is made of a polymer material, wood, metal or the like.
  • the flocking table 32 and the long handle 5 may be fixed or may be joined so as to be rotatable.
  • the flock base 32 and the long handle portion 5 can be fixed or joined by adopting members and methods widely used in this technical field.
  • the magnetic monofilament and flocking table of the present invention can be made into a magnetic monofilament and a magnetic brush having an antifungal effect and an antibacterial effect by further kneading an antifungal component and an antibacterial component into the resin.
  • Any of these fungicides and antibacterial components may be suitably used in the food field, except for those whose effects are significantly reduced by heating when kneaded into the resin.
  • an antifungal component or an antibacterial component may be applied to the magnetic monofilament, flocking table, or magnetic brush.
  • an antifungal component or antibacterial component for example, as an inorganic antibacterial / antifungal agent, an antibacterial agent in which silver, zinc, or copper metal is carried on an inorganic carrier, a phosphate-based calcium silver phosphate, or a silicate Silver zeolite, silica gel silver, clay mineral, fusible glass, oxide photocatalyst titanium, organic antibacterial and antifungal agents, thiocyanate, isothiazoline, aldehyde, nitrile, halogen and imidazole, thiazole Mold, antibacterial components such as pyridine and nitrile.
  • These fungicidal components and antibacterial components exhibit a predetermined effect by being kneaded or applied to a resin so as to obtain a dose that exhibits the effect of the component.
  • the magnetic monofilament 2 and the magnetic brush 1 of the present invention can be used in combination with a commercially available metal detector commonly used in the food field.
  • a metal detector for example, the frequency is 800 Hz and the distance from the high frequency coil is 75 mm high. It is preferable that the metal detector has a sensitivity capable of detecting a 0.4 mm Ryukyu when an iron ball is passed therethrough.
  • metal detector ID3G-3000 manufactured by Ishida Co., Ltd.
  • Sample for measurement The monofilament manufactured in the experimental example was used. A sample for measurement was prepared by horizontally arranging eight monofilaments cut to a length of about 5 mm and fixing them with tape.
  • VSM vibrating sample magnetometer
  • BHV-50H manufactured by Riken Denshi Co., Ltd.
  • sweeping and applying an external magnetic field maximum magnetic field 5 KOe
  • the application direction of the external magnetic field was measured in the direction perpendicular to the fiber.
  • the obtained saturation magnetization was normalized to a value per 1 g of fiber.
  • Example 1 As magnetic powder, triiron tetroxide “KN-320” (trade name, manufactured by Toda Kogyo Co., Ltd.) with an average particle size of 0.27 ⁇ m and polybutylene terephthalate resin “NOVADURAN 5020” (trade name, manufactured by Mitsubishi Engineering Plastics) was used to produce a polybutylene terephthalate resin compound containing 50 wt% of triiron tetroxide by a twin screw extruder.
  • KN-320 trade name, manufactured by Toda Kogyo Co., Ltd.
  • NOVADURAN 5020 trade name, manufactured by Mitsubishi Engineering Plastics
  • the film was stretched in the second stage, further passed through a dry heat bath at 180 ° C. and subjected to a relaxation heat treatment of 0.9 times to obtain a monofilament having a diameter of 0.5 mm.
  • the saturation magnetization and the minimum length of the monofilament detected by the metal detector were measured.
  • Example 2 As magnetic powder, triiron tetroxide KN-320 having an average particle size of 0.27 ⁇ m, nylon 6 and nylon 66 copolymer polyamide resin “NOVAMID 2030A8” (trade name, manufactured by DSM)) was used, and tritetratetraoxide using a twin screw extruder. A polyamide resin compound containing 50 wt% of iron was prepared.
  • the film was stretched in the second stage, further passed through a dry heat bath at 180 ° C., and subjected to a relaxation heat treatment of 0.9 times to obtain a monofilament having a diameter of 0.5 mm.
  • the saturation magnetization of the obtained monofilament and the minimum length of the monofilament detected by the metal detector were measured.
  • Example 3 Polytrimethylene terephthalate resin “SORONA” (trade name, manufactured by DuPont) is used as the monofilament resin, and ferrite powder “Ni—Zn ferrite KNI-106” (trade name) having an average particle diameter of 0.8 ⁇ m is used as the magnetic material.
  • the obtained magnetic monofilament had a strength of 1.6 cN / dtx, an elongation of 20%, and a saturation magnetization of 20 emu / g.
  • Example 4 As a thermoplastic resin, a polypropylene resin “Novatec PPMA3H” (trade name, manufactured by Nippon Polypro Co., Ltd.) is used, and as a magnetic material, triiron tetroxide “KN-320” having an average particle diameter of 0.27 ⁇ m is used. A polypropylene resin compound resin containing 15 wt% was produced.
  • the compound resin was melted at 200 ° C., and injection-extruded into a hand brush mold set in an injection molding machine to form a hand brush shape.
  • pirns were installed in the krill stand.
  • SM7025EX manufactured by Toray Dow Corning Co., Ltd.
  • silicone oil agent in the spraying device installed in front of the first roll for the purpose of imparting slidability to the yarn while unwinding so that the monofilament does not twist while rotating the pan.
  • a 1 wt% aqueous dispersion was placed between the first roll and the second roll at a first roll speed of 26 m / min and a second roll speed of 25 m / min.
  • the diameter of the tow-shaped fiber bundle (hereinafter referred to as “hank”) is 5 in a square winding machine. Rolled up to 0 mm.
  • Example 5 Biaxial using SUS410L “PF-5F” (trade name, manufactured by Epson Atmix Co., Ltd.) and polybutylene terephthalate resin “NOVADURAN5020” (trade name, manufactured by Mitsubishi Engineering Plastics) with an average particle size of 4 ⁇ m as magnetic powders.
  • PF-5F trade name, manufactured by Epson Atmix Co., Ltd.
  • NOVADURAN5020 trade name, manufactured by Mitsubishi Engineering Plastics
  • the compound was vacuum-dried at 110 ° C. for 10 hours and then melt-spun using an extruder-type spinning device.
  • the extruder polymer was melted at 240 ° C and spun by a spin pack heated to 240 ° C.
  • the spinneret was installed with a round die with a diameter of 2.4 mm and a number of 20 pieces, and a 400 mesh filter, and the discharge rate was extruded from the spinning hole at 13.2 g / min., And the spun yarn was 65 with an air gap of 55 mm.
  • An undrawn yarn was obtained by cooling in warm water at 0 ° C. Without winding up the undrawn yarn, the first stage drawing was performed 3.7 times in a 90 ° C.
  • the film was stretched in the second stage, further passed through a dry heat bath at 150 ° C. and subjected to a relaxation heat treatment of 0.9 times to obtain a magnetic monofilament having a diameter of 0.5 mm.
  • the obtained magnetic monofilament had a strength of 1.8 cN / dtx, an elongation of 19%, and a saturation magnetization of 17 emu / g.
  • Example 6 Inorganic blue pigment masterbatch chip “PBTM (F) 27821” containing 90% polybutylene terephthalate resin compound resin chip containing 25% PF-5F obtained in Example 5 and 40% ultramarine in PBT resin (product) 10 parts by name, manufactured by Dainichi Seika Kogyo Co., Ltd. were added, and spinning was carried out in the same manner as in Example 5 to obtain a blue colored magnetic monofilament having a diameter of 0.5 mm.
  • PBTM (F) 27821 containing 90% polybutylene terephthalate resin compound resin chip containing 25% PF-5F obtained in Example 5 and 40% ultramarine in PBT resin (product) 10 parts by name, manufactured by Dainichi Seika Kogyo Co., Ltd.
  • the resulting blue-colored magnetic monofilament 2 fiber was 1.7 cN / dtx in strength, 18% in elongation, and 19 emu / g in saturation magnetization.
  • the obtained magnetic monofilament colored in red had a strength of 1.6 cN / dtx, an elongation of 18.9%, and a saturation magnetization of 18.5 emu / g.
  • Example 7 Polypropylene resin “NOVATEC PPMA3H” (trade name, manufactured by Nippon Polypro Co., Ltd.) is used as the thermoplastic resin, and SUS410L “PF-5F” (trade name, manufactured by Epson Atmix Co., Ltd.) having an average particle diameter of 4 ⁇ m is used as the magnetic material. It was added so that the addition rate was 25 wt%, and 2.0 wt% of ultramarine “MILORI BLUE N650” (trade name, manufactured by Dainichi Seika Kogyo Co., Ltd.) was added as a blue inorganic pigment and kneaded to give a blue color. A polypropylene resin compound resin was produced.
  • SUS410L “PF-5F” (trade name, manufactured by Epson Atmix Co., Ltd.) with an average particle diameter of 4 ⁇ m is added as a magnetic material using a polypropylene resin “Novatech PPMA3H” (trade name, manufactured by Nippon Polypro Co., Ltd.). The ratio is 25 wt%, and 1.2 wt% of bengara (ferric oxide) “MR-120” (trade name, manufactured by Morishita Bengal Kogyo Co., Ltd.) is added as a red inorganic pigment. A colored polypropylene resin compound was obtained. The saturation magnetization of the obtained two colored compounds was 18 emu / g.
  • Each of these two compound resins is melted at a temperature of 200 ° C., hand-molded into a hand brush mold set in an injection molding machine, molded into a hand brush shape, and colored in red and blue, respectively.
  • a molded product for flocking was obtained.
  • the blue and red magnetic monofilaments containing 25 wt% of SUS410L powder produced in Example 6 were wound on tow-like fiber bundles with a winding machine while separately setting with a 170 ° C. dry heat setting machine.
  • This tow-like fiber bundle was suspended from a cage and a straight tow-like fiber bundle was obtained with a comb.
  • This tow-shaped fiber bundle was wound around the outer periphery of the fiber bundle or the like in a spiral shape with glued paper in a paper winding machine to create a single paper-wrapped fiber bundle (hank).
  • Example 8 The cleaning brush was set in a model durability tester, and it was evaluated whether the degree of brush bristle opening and brush bristle caused by an increase in the number of times of brushing occurred.
  • the test method is to place the cleaning brush head part on the metal corrugated plate and place it in parallel with the corrugated sheet so that the tip of the bristle is in contact with the corrugated plate surface. Is immersed in water, and the cleaning brush head is reciprocated in a direction perpendicular to the wave of the corrugated plate.
  • the test condition is that the cleaning brush head is loaded with a load of 500 g, the brush is brushed up to 20,000 times with a reciprocating speed of 150 times / minute, and a brushing stroke of 40 mm. A test was conducted to determine whether there was any.
  • both the red and blue colored cleaning brushes for food factories obtained in Example 7 had no brush hair breakage, almost no brush hair opening, and had excellent durability as a cleaning brush. confirmed.
  • the obtained yellow-colored magnetic monofilament is a monofilament having unevenness and unevenness in the yarn length direction, similarly to the blue-colored monofilament, and has a strength of 1.0 cN / dtx and an elongation of 8
  • the magnetic monofilament was low in strength and low toughness when used as a brush hair, and was easily broken.
  • Comparative Example 2 The polybutylene terephthalate resin compound containing 25 wt% of PF-5F used in Example 5 was vacuum-dried at 115 ° C. for 8 hours, and then melt spinning was performed using an extruder-type spinning device.
  • the extruder polymer was melted at a temperature of 240 ° C. and spun by a spin pack heated to 240 ° C.
  • the spinneret was installed with a round die with a diameter of 2.4 mm and a number of 20 pieces and a 400 mesh filter, and the discharge rate was extruded from the spinning hole at a rate of 9.2 g / min., And the spun yarn was 60 with an air gap of 55 mm.
  • An undrawn yarn was obtained by cooling in warm water at 0 ° C.
  • the first stage drawing is performed 2.5 times in a warm water bath at 90 ° C., and then passed through a 120 ° C. dry heat bath so that the total draw ratio is 3.0 times. Then, the film was stretched in the second stage, further passed through a dry heat bath at 150 ° C. and subjected to a relaxation heat treatment of 0.8 times to obtain a magnetic monofilament having a diameter of 0.5 mm.
  • the magnetic monofilament obtained had a strength of 1.0 cN / dtx, an elongation of 38.2%, and a saturation magnetization of 18 emu / g.
  • a cleaning brush was produced in the same manner as in Example 7 using the obtained magnetic monofilament.
  • a model durability test was conducted on this cleaning brush in the same manner as in Example 8. As a result, the brush hair did not break, but the brush brush had a large opening and was inferior in cleanability.

Abstract

The present invention relates to a magnetic monofilament which can be easily detected by a metal detector, which maintains the strength required to be employed as a monofilament for brush hairs, and which can be spun to form monofilaments having a variety of thicknesses. The magnetic monofilament is characterized by: including a polymer monofilament, and a magnetic body contained in said polymer monofilament; and being obtained by dispersing the magnetic body in the polymer filament so as to achieve a saturation magnetization of at least 3emu/g. Also provided are a magnetic brush including said magnetic monofilaments, and a production method for the magnetic monofilament and the magnetic brush.

Description

磁性モノフィラメント、磁性ブラシおよびそれらの製造方法Magnetic monofilament, magnetic brush, and manufacturing method thereof
　本発明は、磁性モノフィラメントおよび当該磁性モノフィラメントを用いた磁性ブラシならびにそれらの製造方法に関する。 The present invention relates to a magnetic monofilament, a magnetic brush using the magnetic monofilament, and a manufacturing method thereof.
　食品中に異物が混入し、これを発見できずに販売して、販売後に異物が発見された場合には、食品メーカーにとっては、自社製品のイメージを損ない、ひいては自社製品の購買意欲の低下につながるので、食品産業においては、食品の安全性を維持するために、食品中への異物混入は絶対に避けなければならない。 If foreign matter is mixed in food and sold without being discovered, and foreign matter is discovered after the sale, the food manufacturer will damage the image of the company's product, which in turn reduces the willingness to purchase the product. Therefore, in the food industry, in order to maintain the safety of food, it is absolutely necessary to avoid contamination of food.
　また、メーカーが製品出荷前に、異物を発見したとしても、発見時期によっては、異物の混入が疑われる多数の製品を廃棄せざるを得ないおそれもあり、やはり食品メーカーにとって大きな打撃となる。 Also, even if a maker discovers a foreign object before shipping the product, depending on the time of discovery, there is a risk that a large number of products suspected of being contaminated may be discarded, which is also a big blow for food manufacturers.
　そのため、食品製造の現場では、作業員に防止、作業着、マスク、手袋などの着用を義務つけ、体が外部に露出しないようにしている。 Therefore, in the field of food production, workers are obliged to wear prevention clothes, work clothes, masks, gloves, etc., so that the body is not exposed to the outside.
　一方、製品が食品であることから、製品を収容する容器、製造ライン、製造機械器具の清掃も定期的に実施されるが、その際には、各種ブラシを使用せざるを得ない。 On the other hand, since the product is a food, the container, the production line, and the production machine / equipment for storing the product are regularly cleaned, but in that case, various brushes must be used.
　しかし、これらの各種ブラシでは、使用中にブラシに固定されている植毛部のフィラメントが毛抜けしたり、折損や断裂した場合、フィラメント断片が製造ラインや製造機械器具に付着して、食品製造中に食品に移行し、フィラメント断片を含んだまま製品化されてしまうおそれがある。 However, with these various brushes, if the filament in the flocked part fixed to the brush during use falls off or breaks or tears, the filament fragments adhere to the production line or production machinery and equipment, and food production is in progress. There is a risk that it will be transferred to food and commercialized with filament fragments.
　加えて、このような各種ブラシは、合成樹脂製のものが多いので、一旦、食品中に散逸した場合には、目視で検知するか、場合によっては濾過や篩過する以外には検知することができない。 In addition, since many of these brushes are made of synthetic resin, once they are dissipated in food, they should be detected visually or, in some cases, other than filtering or sieving. I can't.
　特に、フィラメント断片が水平状態で混入している場合は、比較的発見しやすいが、食品が粉体状のものであるときには、フィラメント断片が垂直ないし斜め方向に立ったような状態で存在することも多く、このような場合には、極めて検知が困難である。 In particular, when the filament fragments are mixed in a horizontal state, it is relatively easy to find, but when the food is in a powder form, the filament fragments should exist in a vertical or diagonal direction. In such a case, detection is extremely difficult.
　このような状況のもとで、万一、ブラシのフィラメントが毛抜けや折損した場合でも、目視以外で、かつフィラメント断片が食品中に垂直ないし斜め方向に立ったような状態で存在した場合でも、高率で検知できる素材が望まれていた。 Under such circumstances, even if the brush filament is broken or broken, even if it is not visually observed and the filament fragment is present in a state of standing vertically or diagonally in the food Therefore, a material that can be detected at a high rate was desired.
　またさらに、洗浄ブラシのフィラメントや植毛台やハンドル部が破損や断裂して食品中に混入した場合には、金属検知で検知されるが、食品工場にはいくつもの製造ラインがあり検知されたフィラメントや植毛台やハンドル部がどのラインで混入したか判ると、工場の品質・安全管理面から対策が取りやすくなる。 Furthermore, if the cleaning brush filament, flocking table or handle is damaged or torn and enters the food, it is detected by metal detection, but there are several production lines in the food factory and the detected filament If you know which line the flocking table and handle are mixed in, it will be easier to take measures in terms of factory quality and safety management.
　そのため、フィラメントと植毛台、ハンドル部は同色相にした洗浄ブラシをライン毎に色分けして使用できる洗浄ブラシの開発が望まれている。 Therefore, there is a demand for the development of a cleaning brush that can be used for each line of cleaning brushes with the same hue for the filament, flocking table, and handle.
　かかる対策として、ブレードの合成樹脂層またはゴム層に黒色酸化鉄粉が混入された食品用ヘラ（特許文献１）、磁性体を含む樹脂材料により形成された部分を有することを特徴とする清掃用器具（特許文献２）が提案されている。 As a countermeasure for this, the blade has a spatula for food in which black iron oxide powder is mixed in the synthetic resin layer or rubber layer of the blade (Patent Document 1), and has a portion formed of a resin material containing a magnetic material. An instrument (Patent Document 2) has been proposed.
実用新案登録第３１５１３５２号Utility Model Registration No. 3151352 実用新案登録第３１６５８７４号Utility model registration No. 3165874
　特許文献１および２に記載された発明は、折損した部分が異物として食品中に混入した場合に、金属検知器で異物の存在を発見するためのものであり、異物発見に関してそれなりに効果的ではあるが、食品中に混入する異物の状況やサイズによっては、発見できない場合がある。たとえば小麦粉や粉ミルクなど、食品が粉体状の場合に、前記のようにフィラメント断片が該粉体状の食品中に直立したような状態で存在するときには金属検知機でも発見することは困難である。 The inventions described in Patent Documents 1 and 2 are for detecting the presence of a foreign object with a metal detector when a broken part is mixed in the food as a foreign object. However, it may not be detected depending on the status and size of the foreign substance mixed in the food. For example, when the food is powdery, such as flour or powdered milk, it is difficult to detect even with a metal detector when the filament fragments are present upright in the powdery food as described above. .
　また、特許文献１および２に記載された発明では、磁性体を全体の２０～６０重量％を配合するというものであり、このような高い含有率で磁性体を配合すれば、フィラメントの柔軟性などが十分ではなく、また強度においても十分なものとできず、さらに紡糸しても種々のブラシに適応した太さのものを得がたいという問題があった。 In addition, in the inventions described in Patent Documents 1 and 2, the magnetic material is blended in an amount of 20 to 60% by weight, and if the magnetic material is blended at such a high content, the flexibility of the filament is increased. However, there is a problem in that it is not sufficient in strength, and it is difficult to obtain a thickness suitable for various brushes even when spinning.
　本願発明者らは、鋭意研究を重ねた結果、高分子モノフィラメント中に特定範囲の飽和磁化を有する磁性体を含有させれば、万一、毛抜けや折損し、当該フィラメント断片が食品中に垂直ないし斜め方向に立ったような状態や湾曲した状態で存在した場合でも、金属検知機で高率に検知することができ、しかもブラシのフィラメントとしての強度を維持し、かつ種々の太さのモノフィラメントとなるよう紡糸できることを見出し、本発明を完成したものである As a result of intensive research, the inventors of the present application have discovered that if a polymer monofilament contains a magnetic material having a saturation magnetization in a specific range, the filament fragments may break down or break down in the food. Even when it stands in a slanted or curved state, it can be detected at a high rate with a metal detector, and the strength of the brush filament is maintained, and monofilaments of various thicknesses The present invention has been completed by finding that it can be spun so that
　また、本発明者らは、磁性体を含有したモノフィラメントの飽和磁化と金属検知機で検知できるモノフィラメント長さとの関係を鋭意検討した結果、モノフィラメント中の飽和磁化が３ｅｍｕ／ｇであれば、垂直に直立している２５ｍｍ程度のモノフィラメント断片を検知できること、さらには、飽和磁化が７ｅｍｕ／ｇ近辺において、検知できるモノフィラメント長さの変曲点があり、飽和磁化が７ｅｍｕ／ｇ以下の場合は、飽和磁化が少し変化するだけで、金属検知器で検知できる垂直に直立しているモノフィラメント断片の長さが大きく変化することを見出した。 In addition, as a result of intensive studies on the relationship between the saturation magnetization of a monofilament containing a magnetic material and the length of the monofilament that can be detected by a metal detector, the inventors have found that if the saturation magnetization in the monofilament is 3 emu / g, It is possible to detect an upright monofilament fragment of about 25 mm, and further, when the saturation magnetization is in the vicinity of 7 emu / g, there is an inflection point of the detectable monofilament length, and when the saturation magnetization is 7 emu / g or less, the saturation magnetization It has been found that the length of a vertically upstanding monofilament fragment that can be detected by a metal detector changes greatly with a slight change in.
　これらのことは、言い換えれば、モノフィラメント中の飽和磁化が３ｅｍｕ／ｇであれば、実用的には充分な異物検知が可能であることを意味している。というのは、金属検知機で検知される場合、モノフィラメントが水平方向にあれば、金属検知機の磁界を乱す磁性モノフィラメントの断面が大きくなるので、３ｅｍｕ／ｇの飽和磁化でも垂直状態にある２５ｍｍの磁性モノフィラメントよりも検知が容易であり、より小さい長さのものが検出できるからである。 These mean that, in other words, if the saturation magnetization in the monofilament is 3 emu / g, sufficient foreign matter detection is possible in practical use. This is because if the monofilament is in the horizontal direction when detected by a metal detector, the cross section of the magnetic monofilament that disturbs the magnetic field of the metal detector will be large, so that even with a saturation magnetization of 3 emu / g, This is because the detection is easier than the magnetic monofilament, and a smaller length can be detected.
　また、さらに、前記変曲点付近では、磁性体の含有量が少し変化するだけで金属検知機で検知されるモノフィラメントの長さが大きく変わるので、金属検知機で検知できるモノフィラメントの長さを小さくしなければならない場合には、飽和磁化を７ｅｍｕ／ｇ以上とすれば、磁性体の含有量にバラツキが生じ飽和磁化の値に多少の変化があっても、検出長さは殆ど変化せず、折れたブラシ毛を安定的に検知することができ、異物混入事故を防ぐことができることを意味する。 Furthermore, in the vicinity of the inflection point, the length of the monofilament that can be detected by the metal detector is greatly reduced because the length of the monofilament that is detected by the metal detector changes greatly with only a slight change in the content of the magnetic substance. If the saturation magnetization is 7 emu / g or more, even if there is a variation in the content of the magnetic material and there is some change in the value of the saturation magnetization, the detection length hardly changes, This means that broken brush hair can be detected stably and foreign matter contamination accidents can be prevented.
　すなわち、本発明は、高分子モノフィラメントと、該高分子モノフィラメント中に含有される磁性体とを含み、飽和磁化が３ｅｍｕ／ｇ以上となるよう、前記高分子モノフィラメント中に前記磁性体を分散させてなることを特徴とする磁性モノフィラメントである。 That is, the present invention includes a polymer monofilament and a magnetic material contained in the polymer monofilament, and the magnetic material is dispersed in the polymer monofilament so that the saturation magnetization is 3 emu / g or more. It is the magnetic monofilament characterized by becoming.
　また、本発明は、前記磁性モノフィラメントの直径が０．１～１．０ｍｍであり、引張強度が１．５ｃＮ／ｄｔｅｘ以上であり、伸度が１５～３５％であることを特徴とする。 In the present invention, the magnetic monofilament has a diameter of 0.1 to 1.0 mm, a tensile strength of 1.5 cN / dtex or more, and an elongation of 15 to 35%.
　さらに、本発明は高分子モノフィラメントを構成する高分子物質が、ポリエステル系樹脂およびポリアミド系樹脂の少なくとも１種であり、磁性体が遷移金属磁性体、遷移金属合金磁性体、金属間化合物磁性体、酸化物磁性体のいずれか１種以上であることを特徴とする。 Further, in the present invention, the polymer material constituting the polymer monofilament is at least one of a polyester resin and a polyamide resin, and the magnetic material is a transition metal magnetic material, a transition metal alloy magnetic material, an intermetallic compound magnetic material, It is characterized by being one or more of oxide magnetic materials.
　また、本発明は、磁性モノフィラメント中に、さらに無機顔料を含むことによって、前記磁性モノフィラメントが無機顔料で着色されてなることを特徴とする。 Further, the present invention is characterized in that the magnetic monofilament is further colored with an inorganic pigment by further containing an inorganic pigment in the magnetic monofilament.
　また、本発明は、前記の磁性モノフィラメントと、前記磁性モノフィラメントを植毛する植毛台とを含み、前記磁性モノフィラメントが前記植毛台に固定されてなることを特徴とする磁性ブラシである。 Further, the present invention is a magnetic brush comprising the magnetic monofilament and a flocking table for flocking the magnetic monofilament, wherein the magnetic monofilament is fixed to the flocking table.
　また、本発明は、磁性モノフィラメントを植毛する植毛台が熱可塑性樹脂および磁性体を含み、前記植毛台中に、磁性体が含有されてなることを特徴とする。 Further, the present invention is characterized in that a flocking table for flocking magnetic monofilament includes a thermoplastic resin and a magnetic material, and the flocking table contains a magnetic material.
　さらに、本発明は、前記の無機顔料で着色された磁性モノフィラメントが、無機顔料および磁性体を含む熱可塑性樹脂の植毛台に植毛されてなることを特徴とする。 Furthermore, the present invention is characterized in that the magnetic monofilament colored with the inorganic pigment is planted on a thermoplastic resin planting table containing the inorganic pigment and the magnetic material.
　また、本発明は、高分子モノフィラメントと、該高分子モノフィラメント中に分散されてなる磁性体とを含み、飽和磁化が３ｅｍｕ／ｇ以上である磁性モノフィラメントの製造方法であって、
　モノフィラメントを構成する高分子物質と、磁性体粉末とを、流動状態で混合する混合工程と、
　前記混合工程で混合された高分子物質と磁性体粉末の混合物を紡糸する紡糸工程と、
　前記紡糸工程で得られたモノフィラメントを延伸する延伸工程とを含むことを特徴とする磁性モノフィラメントの製造方法である。
　本発明は、前記混合工程において、前記高分子物質と前記磁性体粉末に加えて、さらに無機顔料を流動状態で混合することを特徴とする。 Further, the present invention is a method for producing a magnetic monofilament comprising a polymer monofilament and a magnetic material dispersed in the polymer monofilament and having a saturation magnetization of 3 emu / g or more,
A mixing step of mixing the polymer substance constituting the monofilament and the magnetic powder in a fluidized state;
A spinning step of spinning the mixture of the polymer substance and the magnetic powder mixed in the mixing step;
And a stretching process for stretching the monofilament obtained in the spinning process.
The present invention is characterized in that, in the mixing step, in addition to the polymer substance and the magnetic powder, an inorganic pigment is further mixed in a fluid state.
　本発明によれば、磁性モノフィラメントは、その飽和磁化が３ｅｍｕ／ｇ以上となるよう、磁性体が該高分子モノフィラメント中に含有されているので、種々の状態で存在するモノフィラメント断片でも金属検知機で検知できる。 According to the present invention, since a magnetic substance is contained in the polymer monofilament so that the saturation magnetization of the magnetic monofilament is 3 emu / g or more, even a monofilament fragment existing in various states can be detected by a metal detector. Can be detected.
　また、本発明によれば、磁性モノフィラメントの直径が０．１～１．０ｍｍであり、引張強度が１．５ｃＮ／ｄｔｅｘ以上であり、伸度が１５～３５％であるので、目的に応じた糸径を選択することができるほか、糸径に関わらず優れた弾力性、耐久性および耐薬品性を有し、かつ１０～５ｍｍ程度という小さな断片でも金属検知機で検知することができる。 According to the present invention, the magnetic monofilament has a diameter of 0.1 to 1.0 mm, a tensile strength of 1.5 cN / dtex or more, and an elongation of 15 to 35%. In addition to selecting the yarn diameter, it has excellent elasticity, durability and chemical resistance regardless of the yarn diameter, and even a small piece of about 10 to 5 mm can be detected by a metal detector.
　また、本発明によれば、モノフィラメントを構成する高分子物質が、ポリアミド系樹脂、ポリエステル系樹脂から選ばれる少なくとも１種であり、磁性体が遷移金属磁性体、遷移金属合金磁性体、金属間化合物磁性体、酸化物磁性体のいずれか１種以上であるので、磁性モノフィラメントとした場合でも、優れた弾力性、耐久性および耐薬品性を有し、磁性体は比較的低含有量で、磁性モノフィラメントとして所望の飽和磁化を達成することができる。
　また、本発明によれば、磁性モノフィラメント中に、さらに無機顔料を含むことによって、前記磁性モノフィラメントが無機顔料で着色されてなるので、金属検知器で検知された磁性モノフィラメント断片がどのラインで混入したかわかり、工場の品質・安全管理面から対策が取りやすくなる。 According to the present invention, the polymer material constituting the monofilament is at least one selected from polyamide resins and polyester resins, and the magnetic material is a transition metal magnetic material, a transition metal alloy magnetic material, or an intermetallic compound. Since it is at least one of a magnetic substance and an oxide magnetic substance, it has excellent elasticity, durability and chemical resistance even when it is a magnetic monofilament, and the magnetic substance has a relatively low content and is magnetic. The desired saturation magnetization can be achieved as a monofilament.
In addition, according to the present invention, the magnetic monofilament is further colored with the inorganic pigment by further including the inorganic pigment in the magnetic monofilament, so the magnetic monofilament fragment detected by the metal detector is mixed in which line. This makes it easier to take measures in terms of factory quality and safety management.
　また、本発明によれば、磁性モノフィラメントが植毛された磁性ブラシであるので、該磁性ブラシを包装資材、食品製造機器、食品製造ラインの清掃用ブラシとして使用することができ、万一磁性モノフィラメントが毛抜けや折損して、食品中にモノフィラメント断片が混入した場合でも金属検知機で検知することができ、断片を除去することができる。 Further, according to the present invention, since the magnetic monofilament is a magnetic brush in which the magnetic monofilament is implanted, the magnetic brush can be used as a cleaning brush for packaging materials, food production equipment, and food production lines. Even when a filament breaks or breaks and a monofilament fragment is mixed in the food, it can be detected by a metal detector, and the fragment can be removed.
　また、本発明によれば、磁性モノフィラメントを植毛する植毛台が熱可塑性樹脂および磁性体を含み、前記植毛台中に、磁性体が含有されてなるので、フィラメントのみならず、ブラシ保持部分が万一破損して、食品中に混入した場合でも、その断片を金属検知器で検知することができる。 Further, according to the present invention, the flocking table for flocking the magnetic monofilament contains a thermoplastic resin and a magnetic material, and the flocking table contains the magnetic material. Even when broken and mixed in food, the fragments can be detected by a metal detector.
　本発明の目的、特色、および利点は、下記の詳細な説明と図面とからより明確になるであろう。
実施例１で得られた磁性モノフィラメントの飽和磁化の値と検知されるフィラメントの長さの関係を示したグラフである。 実施例２で得られた磁性モノフィラメントの飽和磁化の値と検知されるフィラメントの長さの関係を示したグラフである。 本発明の磁性モノフィラメントと、植毛台からなる磁性ブラシを示す図である。 無機顔料で着色された本発明の磁性モノフィラメントと、磁性体および無機顔料を含有するハンド部および植毛台からなる磁性ハンドブラシを示す図である。 本発明の磁性モノフィラメントと、磁性体を含有する植毛台と、長柄部とからなる長柄付き磁性ブラシを示す図である。 Objects, features, and advantages of the present invention will become more apparent from the following detailed description and drawings.
3 is a graph showing the relationship between the saturation magnetization value of the magnetic monofilament obtained in Example 1 and the detected filament length. It is the graph which showed the relationship between the value of the saturation magnetization of the magnetic monofilament obtained in Example 2, and the length of the detected filament. It is a figure which shows the magnetic monofilament which consists of the magnetic monofilament of this invention, and a flocking table. It is a figure which shows the magnetic hand brush which consists of the magnetic monofilament of this invention colored with the inorganic pigment, the hand part containing a magnetic body and an inorganic pigment, and a flocking table. It is a figure which shows the magnetic brush with a long handle which consists of the magnetic monofilament of this invention, the flocking table containing a magnetic body, and a long handle part.
　以下図面を参考にして本発明の好適な実施形態を詳細に説明する。
　本発明の磁性モノフィラメントは、高分子モノフィラメントと、該モノフィラメント中に含有される磁性体とを含み、その飽和磁化が３ｅｍｕ／ｇ以上となるよう磁性体が分散されてなる磁性モノフィラメントである。 Preferred embodiments of the present invention will be described below in detail with reference to the drawings.
The magnetic monofilament of the present invention is a magnetic monofilament comprising a polymer monofilament and a magnetic material contained in the monofilament, wherein the magnetic material is dispersed so that the saturation magnetization is 3 emu / g or more.
　本発明において、磁性モノフィラメントの長さというときは、特に断らない限り、すべて垂直方向に直立した磁性モノフィラメントの垂直方向の長さである。
前記のとおり、垂直方向に直立した磁性モノフィラメントは、金属検知機が検知する磁界に影響する面積が小さいが、水平方向で検知される磁性モノフィラメントは同じ飽和磁化であっても、その長さは垂直方向よりも大幅に短い。 In the present invention, the length of the magnetic monofilament is the vertical length of the magnetic monofilament upright in the vertical direction unless otherwise specified.
As described above, the magnetic monofilament upright in the vertical direction has a small area that affects the magnetic field detected by the metal detector, but the length of the magnetic monofilament detected in the horizontal direction is vertical even if it has the same saturation magnetization. Significantly shorter than the direction.
　図１は、ポリブチレンテレフタレート（ＰＢＴ）を用いた本発明の磁性モノフィラメント２の飽和磁化の値と検知される磁性モノフィラメント２の長さの関係を示したグラフである。同図から明らかなように金属検知機で検知されるモノフィラメント２繊維の最小長さと飽和磁化の関係は、検知されるモノフィラメントの長さ５．５ｍｍ、飽和磁化は８ｅｍｕ／ｇの所に変曲点があり、飽和磁化が８ｅｍｕ／ｇでは、５．５ｍｍという非常に小さなモノフィラメント断片でも検出できることを示している。 FIG. 1 is a graph showing the relationship between the saturation magnetization value of the magnetic monofilament 2 of the present invention using polybutylene terephthalate (PBT) and the detected length of the magnetic monofilament 2. As is clear from the figure, the relationship between the minimum length of the monofilament 2 fibers detected by the metal detector and the saturation magnetization is the inflection point at the detected monofilament length of 5.5 mm and the saturation magnetization of 8 emu / g. It is shown that even a very small monofilament fragment of 5.5 mm can be detected when the saturation magnetization is 8 emu / g.
　飽和磁化が８ｅｍｕ／ｇ以上では、検知される最小長さに極端な変化が生じており、飽和磁化が８ｅｍｕ／ｇ以上になると金属検知機で検知されるモノフィラメント繊維の長さが５．５ｍｍからさらに短くなることがわかる。 When the saturation magnetization is 8 emu / g or more, an extreme change occurs in the minimum length to be detected. When the saturation magnetization is 8 emu / g or more, the length of the monofilament fiber detected by the metal detector starts from 5.5 mm. It can be seen that it is even shorter.
　モノフィラメント中に磁性体粉末を含有させた場合には、該モノフィラメントが示す飽和磁化の値は、含有される磁性体粉末濃度に依存し、ほぼ比例関係にあるので、上記の変曲点の存在はまったく予想外のことといえる。 When the magnetic powder is contained in the monofilament, the saturation magnetization value exhibited by the monofilament depends on the concentration of the magnetic powder contained and is in a substantially proportional relationship. This is completely unexpected.
　図２は、ナイロン６とナイロン６６共重合ポリアミド樹脂を用いた本発明の磁性モノフィラメントの飽和磁化の値と検知されるフィラメントの長さの関係を示したグラフである。同図から明らかなように前記ナイロンの場合には、飽和磁化が７ｅｍｕ／ｇ近辺に検知できるモノフィラメント長さの変曲点があり、飽和磁化が７ｅｍｕ／ｇの場合には６．５ｍｍという非常に小さなモノフィラメント断片でも検出できることを示している。 FIG. 2 is a graph showing the relationship between the saturation magnetization value of the magnetic monofilament of the present invention using nylon 6 and nylon 66 copolymer polyamide resin and the detected filament length. As is clear from the figure, in the case of the nylon, there is an inflection point of the monofilament length where the saturation magnetization can be detected in the vicinity of 7 emu / g, and when the saturation magnetization is 7 emu / g, it is 6.5 mm. It shows that even small monofilament fragments can be detected.
　言い換えれば、磁性体の含有量が少し変化するだけで金属検知機での検知される長さが大きく変わる為、２０ｍｍ以上の折れた磁性モノフィラメントを検知する設定をしたとしても、磁性体の含有量にバラツキが生じ飽和磁化の値が５ｅｍｕ／ｇから４ｅｍｕ／ｇになれば検知できる長さが２５ｍｍとなることを示している。 In other words, since the length detected by the metal detector changes greatly with only a slight change in the content of the magnetic material, the content of the magnetic material can be set even if it is set to detect a broken magnetic monofilament of 20 mm or more. When the value of saturation magnetization is changed from 5 emu / g to 4 emu / g, the detectable length is 25 mm.
　したがって、飽和磁化の値が７ｅｍｕ／ｇ以上とすれば、飽和磁化の値に少し変化があっても検出長さは殆ど変化しないので、もし非常に小さい磁性モノフィラメント断片を確実に検知するためには、飽和磁化が７ｅｍｕ／ｇ以上とすべきことになる。 Therefore, if the saturation magnetization value is 7 emu / g or more, the detection length hardly changes even if there is a slight change in the saturation magnetization value. In order to reliably detect a very small magnetic monofilament fragment. The saturation magnetization should be 7 emu / g or more.
　図１および図２において、変曲点における飽和磁化がわずかに異なっているのは、モノフィラメントに用いたポリエステル樹脂とポリアミド樹脂の比重の差によるものである。 1 and 2, the saturation magnetization at the inflection point is slightly different because of the difference in specific gravity between the polyester resin and the polyamide resin used for the monofilament.
　磁性モノフィラメントの有する飽和磁化は３ｅｍｕ／ｇ以上である。好ましくは飽和磁化が、５～２２ｅｍｕ／ｇであり、さらに好ましくは飽和磁化が６～１５ｅｍｕ／ｇ、とりわけ好ましくは飽和磁化が７～１５ｅｍｕ／ｇである。 The saturation magnetization of the magnetic monofilament is 3 emu / g or more. The saturation magnetization is preferably 5 to 22 emu / g, more preferably 6 to 15 emu / g, and particularly preferably 7 to 15 emu / g.
　飽和磁化が３ｅｍｕ／ｇ未満の場合には、金属検知機によって検知される磁性モノフィラメント断片の長さが大きくなり、２０ｍｍ未満の断片が検知できないおそれがある。また飽和磁化が４０ｅｍｕ／ｇを越えると、磁性体にもよるが、高分子モノフィラメント中の磁性体含有量が多くなりすぎて、磁性モノフィラメントに紡糸できないか、または紡糸できたとしても、引張強度や耐久性などの点で、ブラシ用モノフィラメントとして十分なものが得られない。 When the saturation magnetization is less than 3 emu / g, the length of the magnetic monofilament fragment detected by the metal detector becomes large, and there is a possibility that a fragment of less than 20 mm cannot be detected. If the saturation magnetization exceeds 40 emu / g, although depending on the magnetic material, the content of the magnetic material in the polymer monofilament is too large to spin or not spin to the magnetic monofilament. In terms of durability and the like, a sufficient monofilament for a brush cannot be obtained.
　図３は、本発明の磁性モノフィラメントと、植毛台とからなる磁性ブラシを示す図である。磁性ブラシ１は、磁性モノフィラメント２と、磁性モノフィラメント２が植毛される植毛台３とから形成される。 FIG. 3 is a view showing a magnetic brush composed of the magnetic monofilament of the present invention and a flocking table. The magnetic brush 1 is formed of a magnetic monofilament 2 and a flocking table 3 on which the magnetic monofilament 2 is flocked.
　前記磁性モノフィラメント２の糸径は、直径が０．１～１．０ｍｍであり、好ましくは０．２～０．８ｍｍであり、とりわけ好ましくは０．３～０．８ｍｍである。 The diameter of the magnetic monofilament 2 is 0.1 to 1.0 mm, preferably 0.2 to 0.8 mm, and particularly preferably 0.3 to 0.8 mm.
　前記磁性モノフィラメント２における単位長さあたりの飽和磁化は、磁性体の含有量と磁性モノフィラメント２の糸径によっても異なるが、たとえば通常、フィラメント１ｃｍあたり、０．０２～０．１３ｅｍｕ、好ましくは０．０３～０．１ｅｍｕである。 The saturation magnetization per unit length in the magnetic monofilament 2 varies depending on the content of the magnetic material and the yarn diameter of the magnetic monofilament 2, but is usually 0.02 to 0.13 emu per 1 cm of filament, preferably 0. 03 to 0.1 emu.
　また、磁性モノフィラメント２の引張強度は、１．５ｃＮ／ｄｔｘ以上である。
このうち、好ましい強度は１．５～４．５ｃＮ／ｄｔｘ、とりわけ好ましい強度は１．７～４．０ｃＮ／ｄｔｘ、最も好ましい強度が１．７～３．７ｃＮ／ｄｔｘである。 Moreover, the tensile strength of the magnetic monofilament 2 is 1.5 cN / dtx or more.
Of these, a preferred strength is 1.5 to 4.5 cN / dtx, a particularly preferred strength is 1.7 to 4.0 cN / dtx, and a most preferred strength is 1.7 to 3.7 cN / dtx.
　さらに、伸度は１５～３５％であり、好ましくは１５～３５％、とりわけ好ましくは２０～３５％、最も好ましくは２０～３０％である。 Furthermore, the elongation is 15 to 35%, preferably 15 to 35%, particularly preferably 20 to 35%, and most preferably 20 to 30%.
　磁性モノフィラメント２の形状は、その断面が円形であってもよく、楕円形であってもよく、さらには四角形、五角形、星型などの多角形であってもよく、目的のブラシおよび清掃対象の装置、器具の清掃に最も適した形状とすることができる。 The magnetic monofilament 2 may have a circular cross section, an elliptical shape, or a polygonal shape such as a square, pentagon, or star shape. It can be made into the most suitable shape for cleaning of an apparatus and an instrument.
　さらに磁性モノフィラメント２は、芯部を磁性モノフィラメントとし、鞘部は磁性体を含まない高分子物質で紡糸した２層糸モノフィラメントであってもよく、さらに、紡糸された磁性体を含むモノフィラメントの表面を水分散性樹脂や溶剤系樹脂で表面被覆することにより物性向上や磁性体の脱落防止を図ったものでもよい。 Further, the magnetic monofilament 2 may be a double-layered monofilament in which the core portion is a magnetic monofilament and the sheath portion is spun with a polymer material that does not contain a magnetic material. Further, the surface of the monofilament containing the spun magnetic material may be used. The surface may be coated with a water-dispersible resin or a solvent-based resin to improve physical properties and prevent the magnetic material from falling off.
　表面被覆する樹脂は磁性モノフィラメント２に使用する熱可塑性樹脂に対し相溶性、接着性のよい樹脂を適宜選定すればよく、アクリル系樹脂、アクリル酸エステル共重合樹脂、エチレン・アクリル共重合樹脂、ウレタン樹脂、酢酸ビニル系樹脂、水分散ポリエステル共重合樹脂、アルコール可溶性ポリアミド変性樹脂、シリコン系樹脂、ポリアミド共重合樹脂等が用いられる。これらの樹脂の付着方法は、一旦巻き取った後または巻き取ることなく樹脂溶液に接触させてから乾燥機内で乾燥することによりモノフィラメント表面に樹脂を被覆することができる。 The resin for surface coating may be appropriately selected from resins having good compatibility and adhesiveness with the thermoplastic resin used for the magnetic monofilament 2, and acrylic resin, acrylate copolymer resin, ethylene / acryl copolymer resin, urethane Resins, vinyl acetate resins, water-dispersed polyester copolymer resins, alcohol-soluble polyamide-modified resins, silicon resins, polyamide copolymer resins, and the like are used. With respect to the method for attaching these resins, the resin can be coated on the surface of the monofilament by once contacting with the resin solution without winding or after drying in a dryer.
　本発明の磁性モノフィラメント２は、磁性体が均一に分散するように分散剤が含まれていてもよく、さらには視認性を向上させるための着色剤を含んでいてもよい。 The magnetic monofilament 2 of the present invention may contain a dispersant so that the magnetic material is uniformly dispersed, and may further contain a colorant for improving visibility.
　本発明において、磁性体を含有させる高分子モノフィラメントは、ポリエステル系樹脂およびポリアミド系樹脂から選ばれる少なくとも１種からなる高分子モノフィラメントがあげられ、磁性体を含有させて紡糸した場合に、磁性モノフィラメント２として、前記の各性状を発揮できるものが好ましい。 In the present invention, the polymer monofilament containing a magnetic material is a polymer monofilament composed of at least one selected from polyester resins and polyamide resins, and when the magnetic monofilament 2 is spun, the magnetic monofilament 2 As the above, those capable of exhibiting the above properties are preferable.
　ポリエステル系樹脂およびポリアミド系樹脂は、紡糸してフィラメントとした場合に、延伸処理などによって、その引張強度が１．５ｃＮ／ｄｔｘ以上となるものが好ましい。このうち、さらに好ましくは強度が１．７～４．０ｃＮ／ｄｔｘ、とりわけ好ましくは強度が１．７～３．７ｃＮ／ｄｔｘのフィラメントとなるものである。 The polyester-based resin and polyamide-based resin preferably have a tensile strength of 1.5 cN / dtx or more due to stretching treatment or the like when spinning into a filament. Of these, filaments having a strength of 1.7 to 4.0 cN / dtx, more preferably 1.7 to 3.7 cN / dtx are more preferable.
　また、伸度は１５％以上のものが好ましく、このうち、さらに好ましくは伸度が１５～３５％、とりわけ好ましくは伸度が２０～３５％、最も好ましくは伸度が２０～３０％となるものである。 Further, the elongation is preferably 15% or more, and among them, the elongation is more preferably 15 to 35%, particularly preferably the elongation is 20 to 35%, and most preferably the elongation is 20 to 30%. Is.
　かかるポリエステル系樹脂としては、ポリエチレンテレフタレート 、ポリトリメチレンテレフタレート、 ポリブチレンテレフタレート（ＰＢＴ）、 ポリエチレンナフタレート、ポリブチレンナフタレートなどがあげられ、このうち、ポリトリメチレンテレフタレートまたはポリブチレンテレフタレートが好ましく、また、これらブレンドしたものも好ましい。 Examples of the polyester resin include polyethylene terephthalate ポ リ, polytrimethylene terephthalate, polybutylene terephthalate (PBT), polyethylene naphthalate, polybutylene naphthalate, and among these, polytrimethylene terephthalate or polybutylene terephthalate is preferable. These blends are also preferred.
　ポリアミド系樹脂としては、ナイロン６ 、ナイロン１１、 ナイロン１２、ナイロン６６、ナイロン６１０、ナイロン６１２、共重合ナイロンなどがあげられ、このうち、ナイロン６１２および、ナイロン６１０が好ましい。 Examples of the polyamide-based resin include nylon 6１１, nylon 11, nylon 12, nylon 66, nylon 610, nylon 612, and copolymer nylon. Among these, nylon 612 and nylon 610 are preferable.
　本発明で用いられる磁性体としては、前記フィラメント２の紡糸の際に、ポリエステル系樹脂およびポリアミド系樹脂（以下、ポリエステル系樹脂とポリアミド系樹脂を含めて高分子物質という）に分散可能であり、かつ常磁性または強磁性を有するものであれば、用いることができる。 The magnetic material used in the present invention can be dispersed in a polyester-based resin and a polyamide-based resin (hereinafter referred to as a polymer substance including a polyester-based resin and a polyamide-based resin) when the filament 2 is spun. Any material having paramagnetism or ferromagnetism can be used.
　かかる磁性体としては、遷移金属磁性体、遷移合金磁性体、金属間化合物磁性体、酸化物磁性体があげられる。 Examples of such magnetic materials include transition metal magnetic materials, transition alloy magnetic materials, intermetallic compound magnetic materials, and oxide magnetic materials.
　また、遷移金属磁性体としては、鉄、コバルト、ニッケル、クロムなどの金属があげられる。遷移金属合金磁性体としてはたとえば、鉄－コバルト、鉄－ニッケル、鉄－ニッケル－コバルト－アルミニウム、マンガン－アルミニウム－カーボン磁石、マルテンサイト系、フェライト系またはオーステナイト・フェライト系のステンレスがあげられる。かかるステンレスとしては、たとえば、ＳＵＳ４０３、４１０、４１０Ｓ，４２０Ｊ１，４２０Ｊ２、４４０Ａなどのマルテンサイト系ステンレス、ＳＵＳ４０５、４１０Ｌ、４２９、４３０（ＬＸ、Ｊ１Ｌ含む）、４３４、４３６Ｌ，４４５Ｊ１，４４５Ｊ２，４４４、４４７Ｊ１、ＸＭ２７などのフェライト系ステンレス、ＳＵＳ３２９Ｊ１、３２９Ｊ３Ｌおよび３２９Ｊ４Ｌなどのフェライト系ステンレスがあげられる。酸化物磁性体としては、たとえば、γ―酸化鉄、四酸化三鉄、マグヘマイト、バリウム磁石、フェライト磁石があげられる。 Also, transition metal magnetic materials include metals such as iron, cobalt, nickel, and chromium. Examples of the transition metal alloy magnetic material include iron-cobalt, iron-nickel, iron-nickel-cobalt-aluminum, manganese-aluminum-carbon magnet, martensite series, ferrite series, and austenite / ferrite series stainless steel. Examples of such stainless steel include martensitic stainless steel such as SUS403, 410, 410S, 420J1, 420J2, 440A, SUS405, 410L, 429, 430 (including LX, J1L), 434, 436L, 445J1, 445J2, 444, 447J1. And ferrite stainless steels such as SUS329J1, 329J3L, and 329J4L. Examples of the oxide magnetic material include γ-iron oxide, triiron tetroxide, maghemite, barium magnet, and ferrite magnet.
　このうち、酸化鉄が好ましく、酸化鉄のなかでも四酸化三鉄がもっとも好ましい。四酸化三鉄は、古くから黒顔料の一つとして使用されており、耐熱性が高く、酸化物なので酸化して錆びることがなく、紡糸時に分解がなく、水と接触する清掃ブラシであっても錆びないという特徴があり、本発明においても好適に用いられる。 Of these, iron oxide is preferable, and triiron tetroxide is most preferable among the iron oxides. Iron oxide tetroxide has long been used as a black pigment, has high heat resistance, is an oxide and does not oxidize and rust, and does not decompose during spinning. Is not rusted and is also preferably used in the present invention.
　また、マルテンサイト系、フェライト系またはオーステナイト・フェライト系のステンレスは灰色色相であり磁性モノフィラメント２を構成する樹脂に分散させた場合、磁性モノフィラメント２の色相は薄い灰色を呈するので、顔料添加による磁性モノフィラメント２の着色が容易になると云う特徴がある。
　このため、本発明の磁性モノフィラメント２、該モノフィラメント２が植毛された植毛台３など、磁性ブラシ全体を着色したい場合には、前記ステンレスは特に好適に用いられる。
　これら磁性体は、単品で用いることもでき、適宜２種以上を混合して用いてもよい。 In addition, martensitic, ferritic or austenitic / ferritic stainless steel has a gray hue, and when dispersed in the resin constituting the magnetic monofilament 2, the magnetic monofilament 2 has a light gray hue. 2 is easy to color.
For this reason, when it is desired to color the entire magnetic brush, such as the magnetic monofilament 2 of the present invention and the flocking table 3 on which the monofilament 2 is flocked, the stainless steel is particularly preferably used.
These magnetic materials can be used alone or in combination of two or more.
　磁性体は、粉体状で用いるのが好ましく、平均粒径が０．０１～１５０μｍ、好ましくは０．０１～５０μｍ、とりわけ好ましくは０．０１～１０μｍである。 The magnetic material is preferably used in the form of powder and has an average particle size of 0.01 to 150 μm, preferably 0.01 to 50 μm, and particularly preferably 0.01 to 10 μm.
　磁性体として四酸化三鉄を例にあげると、粒径が０．０１～１０μｍの範囲のものが好ましい。粒径が５μｍ以上になると高分子物質に配合した場合、紡糸時の糸切れが多く、工業的に製造が困難となると共に糸の強力が低く、清掃用ブラシ毛とした場合には、洗浄中にブラシ毛が開き、洗浄性が悪くなったり、またブラシ毛が折れやすいという問題が生じる。 Taking triiron tetroxide as an example of the magnetic material, those having a particle size in the range of 0.01 to 10 μm are preferable. If the particle size is 5 μm or more, blending with a polymer substance will cause many yarn breaks during spinning, making it difficult to manufacture industrially and low yarn strength. However, there is a problem that the brush bristles open and the cleaning properties are deteriorated and the brush bristles are easily broken.

　上記の磁性体は、機械的粉砕方法、ミル粉砕方法、メカニカルアロイイング法などの機械的方法、還元、電気分解などの化学的方法、水アトマイズ法、ガスアトマイズ法などのアトマイズ法によって、製造することができる。
The magnetic material is manufactured by mechanical methods such as mechanical pulverization methods, mill pulverization methods, mechanical alloying methods, chemical methods such as reduction and electrolysis, atomization methods such as water atomization methods and gas atomization methods. Can do.
　本発明において、磁性体が前記ステンレスであるときには、水アトマイズ法にて粒子化した球状粉末が好ましい。球状粉末の粒子径は低い方が好ましいが、３μｍ以下の粒子径になると生産効率が悪く非常に高価なものになる。水アトマイズ法にて粒子化した球状粉末は、金属粉末同士の凝集がおこり難く高分子モノフィラメントを構成する樹脂の中に均一分散されるので、平均粒径が３～１０μｍであれば本発明の磁性モノフィラメントの直径が０．１～１．０ｍｍの範囲での紡糸性の低下が無く、強度低下も少ない磁性モノフィラメント２が得られる。 In the present invention, when the magnetic material is stainless steel, a spherical powder that is made into particles by the water atomization method is preferable. The spherical powder preferably has a lower particle size, but if the particle size is 3 μm or less, the production efficiency is poor and the product becomes very expensive. The spherical powder that has been made into particles by the water atomization method is less likely to agglomerate between metal powders and is uniformly dispersed in the resin that constitutes the polymer monofilament. Therefore, if the average particle size is 3 to 10 μm, the magnetic powder of the present invention When the monofilament diameter is in the range of 0.1 to 1.0 mm, there is no decrease in spinnability, and a magnetic monofilament 2 with little decrease in strength is obtained.
　本発明の磁性モノフィラメント２は、モノフィラメントを構成する高分子物質と、磁性体粉末とを、流動状態で混合する混合工程と、前記高分子物質と磁性体粉末の混合物を紡糸する紡糸工程と、前記紡糸工程で得られたモノフィラメントを延伸する延伸工程とを順次実施することによって、製造することができる。 The magnetic monofilament 2 of the present invention includes a mixing step of mixing a polymer material constituting the monofilament and a magnetic powder in a fluidized state, a spinning step of spinning the mixture of the polymer material and the magnetic powder, It can manufacture by implementing sequentially the extending | stretching process of extending | stretching the monofilament obtained by the spinning process.
　混合工程では、高分子物質と磁性体とを流動状態で混合する。具体的には、高分子を加熱して溶融させ、これに磁性体粉末を加えて混合し、高分子と磁性体の溶融物とするか、または高分子と磁性体粉末とを混合しつつ加熱して溶融し混合して前記溶融物とすることができる。
　また、混合工程では、たとえば、二軸混練押出機等で高分子物質と磁性体を混練成形して高濃度マスターバッチを製造し、紡糸時に磁性体が所定の濃度なるように、高分子物質で希釈する方法や、磁性体を所定濃度に含有させたマスターバッチを製造して紡糸する方法があり、本発明においては、これらの方法を使用することができる。 In the mixing step, the polymer substance and the magnetic substance are mixed in a fluid state. Specifically, the polymer is heated and melted, and the magnetic powder is added and mixed to form a melt of the polymer and the magnetic material, or the polymer and the magnetic powder are heated while being mixed. And then melted and mixed to obtain the melt.
Further, in the mixing step, for example, a high-concentration master batch is manufactured by kneading and molding a polymer material and a magnetic material with a twin-screw kneading extruder, etc., and the polymer material is used so that the magnetic material has a predetermined concentration during spinning. There are a method for diluting and a method for producing and spinning a master batch containing a magnetic substance at a predetermined concentration. In the present invention, these methods can be used.
　高分子物質と磁性体とを混練する場合には、種々の分散剤を添加すると酸化鉄の分散性が良好になる。またさらに、高分子物質と磁性体との接着性を増すために、シランカップリング剤、チタネート系カップリング剤、ジルコニウム系カップリング剤等で表面処理された磁性体を使用することもできる。 When kneading a polymer substance and a magnetic substance, the dispersibility of iron oxide is improved by adding various dispersants. Furthermore, in order to increase the adhesion between the polymer substance and the magnetic substance, a magnetic substance surface-treated with a silane coupling agent, a titanate coupling agent, a zirconium coupling agent or the like can be used.
　高分子物質を加熱溶融する場合の温度は、当該高分子物質の重合度や架橋の有無によっても異なるが、高分子物質がたとえばポリブチレンテレフタレートである場合には、たとえば２５０～２８０℃で容易に混合することができる。 The temperature at which the polymer substance is melted by heating varies depending on the degree of polymerization of the polymer substance and the presence or absence of crosslinking. However, when the polymer substance is, for example, polybutylene terephthalate, it is easily at, for example, 250 to 280 ° C. Can be mixed.
　高分子物質と磁性体の配合比率は、高分子物質と磁性体の組合せによって変動するが、磁性モノフィラメント２として所定の飽和磁化を有するものとなるような比率であればよく、特に限定されないが、高分子物質に対して、５～３３ｗｔ％、好ましくは６～２４ｗｔ％、さらに好ましくは７～２０ｗｔ％、とりわけ好ましくは８～２０ｗｔ％である。 The blending ratio of the high molecular substance and the magnetic substance varies depending on the combination of the high molecular substance and the magnetic substance, but is not particularly limited as long as the magnetic monofilament 2 has a predetermined saturation magnetization. It is 5 to 33 wt%, preferably 6 to 24 wt%, more preferably 7 to 20 wt%, and particularly preferably 8 to 20 wt% with respect to the polymer substance.
　また、高分子物質がポリエステル樹脂である場合と、ポリアミド樹脂である場合とで、比重の差があるので、これを含めると、高分子物質がポリエステル樹脂である場合には、磁性体の含有量は、５～３３ｗｔ％、好ましくは８～２０ｗｔ％、さらに好ましくは９～２０ｗｔ％、とりわけ好ましくは１０～２０ｗｔ％である。 In addition, there is a difference in specific gravity between the case where the high molecular substance is a polyester resin and the case where it is a polyamide resin. Is 5 to 33 wt%, preferably 8 to 20 wt%, more preferably 9 to 20 wt%, and particularly preferably 10 to 20 wt%.
　また、高分子物質がポリアミド樹脂である場合には、磁性体の含有量は、５～３０ｗｔ％、好ましくは６～２０ｗｔ％、さらに好ましくは７～２０ｗｔ％、とりわけ好ましくは８～２０ｗｔ％である。 When the polymer substance is a polyamide resin, the content of the magnetic substance is 5 to 30 wt%, preferably 6 to 20 wt%, more preferably 7 to 20 wt%, and particularly preferably 8 to 20 wt%. .
　高分子モノフィラメントと磁性体との配合例の具体例をあげるとすれば、高分子物質がポリブチレンテレフタレートであり、磁性体が四酸化三鉄である場合には、高分子物質に対して１０％の磁性体を配合することによって、飽和磁化が７ｅｍｕ／ｇの磁性モノフィラメント２（直径０．５ｍｍ）とすることができる。 As a specific example of the blending example of the polymer monofilament and the magnetic material, when the polymer material is polybutylene terephthalate and the magnetic material is triiron tetroxide, it is 10% with respect to the polymer material. The magnetic monofilament 2 (diameter: 0.5 mm) having a saturation magnetization of 7 emu / g can be obtained by blending the magnetic material.
　また、高分子物質がナイロン６／ナイロン６６共重合であり、磁性体が四酸化三鉄である場合には、高分子物質に対して１２％の磁性体を配合することによって、飽和磁化が７ｅｍｕ／ｇの磁性モノフィラメント２（直径０．５ｍｍ）とすることができる。 Further, when the polymer substance is nylon 6 / nylon 66 copolymer and the magnetic substance is triiron tetroxide, the saturation magnetization is 7 emu by adding 12% of the magnetic substance to the polymer substance. / G magnetic monofilament 2 (diameter 0.5 mm).
　さらに、紡糸工程では、高分子物質の紡糸において使用される方法で紡糸することができる。 Furthermore, in the spinning process, spinning can be performed by a method used in spinning of a polymer material.
　紡糸方法としては、溶融紡糸方法、乾式紡糸方法、湿式紡糸方法、ゲル紡糸方法、液晶紡糸方法などをあげることができる。 Examples of the spinning method include a melt spinning method, a dry spinning method, a wet spinning method, a gel spinning method, and a liquid crystal spinning method.
　溶融紡糸するときは、高分子を加熱して溶融させ、これに磁性体粉末を加えて混合し、高分子と磁性体の溶融物とするか、または高分子と磁性体粉末とを混合しつつ加熱して溶融し混合して前記溶融物とする。ついで前記溶融物を口金から押し出して繊維状にし、冷却して固化することにより、本発明の磁性モノフィラメント２を製造することができる。冷却は空冷、液体浴等の方法で行うことができ冷却方法は高分子物質、フィラメント２の太さ、粘度等の設定によって選択すればよい。また、二軸混練押出機で高分子物質と磁性体を混合して、そのまま押出し紡糸する方法があり、この方法によって紡糸してもよい。 When melt spinning, the polymer is heated and melted, and the magnetic powder is added and mixed to form a melt of the polymer and the magnetic material, or while the polymer and the magnetic powder are mixed. Heat to melt and mix to make the melt. Next, the magnetic monofilament 2 of the present invention can be produced by extruding the melt from the die into a fiber, cooling and solidifying. Cooling can be performed by a method such as air cooling or a liquid bath, and the cooling method may be selected depending on the setting of the polymer substance, the thickness of the filament 2, the viscosity, and the like. Further, there is a method in which a polymer substance and a magnetic material are mixed with a twin-screw kneading extruder and extruded and spun as it is, and spinning may be performed by this method.
　紡糸速度２０～１００ｍ／分で引き取られたモノフィラメントは一旦巻き取った後または巻き取ることなく連続して延伸される。延伸工程では、紡糸された磁性モノフィラメント２を延伸処理して、磁性モノフィラメント２として適切な強度等を有するモノフィラメントとなるように延伸処理を行う。延伸は一段または多段で行うことができ、さらに糸状に延伸に必要な熱を与える方法としてはロール加熱、スチーム可決、熱液加熱、乾熱加熱等の公知の方法を用いればよい。高分子物質がポリブチレンテレフタレートの場合には、２．０～５．０倍の条件で延伸するのが好ましい。 The monofilament taken up at a spinning speed of 20 to 100 m / min is drawn once or after being taken up continuously. In the stretching step, the spun magnetic monofilament 2 is stretched so that the magnetic monofilament 2 becomes a monofilament having appropriate strength and the like. Stretching can be performed in a single stage or multiple stages. Further, as a method of applying heat necessary for stretching into a filament shape, a known method such as roll heating, steam approval, hot liquid heating, dry heat heating or the like may be used. When the polymer substance is polybutylene terephthalate, it is preferably stretched under a condition of 2.0 to 5.0 times.
　本発明の磁性モノフィラメント２には、前記高分子以外にも、たとえば平滑剤、着色剤などの成分を添加することができる。 In addition to the polymer, components such as a smoothing agent and a colorant can be added to the magnetic monofilament 2 of the present invention.
　平滑剤としては、たとえばステアリン酸リチウム、ステアリン酸カルシウムなどがあげられる。 Examples of the smoothing agent include lithium stearate and calcium stearate.
　さらに着色剤としては、たとえば、この技術分野において常用ないし汎用される無機顔料などがあげられる。
　本発明者らが得た知見によれば、着色剤として有機顔料を用いた場合には、延伸時に延伸斑が生じコブ糸となり、均一なフィラメントが得られないので、ブラシ毛としては不適である。 Furthermore, examples of the colorant include inorganic pigments commonly used or widely used in this technical field.
According to the knowledge obtained by the present inventors, when an organic pigment is used as a colorant, stretched spots are generated at the time of stretching, resulting in a knot yarn, and a uniform filament cannot be obtained. .
　無機顔料としては、たとえば、白色無機顔料、赤色無機顔料、褐色無機顔料、黄色無機顔料、黒色無機顔料、紫色無機顔料、緑色無機顔料、青色無機顔料があげられ、白色無機顔料としては、二酸化チタン、二酸化チタン被覆雲母、酸化亜鉛、モリブデンホワイト、リトポン、バライト、炭酸カルシウム、鉛白、タルクなどがあげられる。
　赤色無機顔料としては、酸化鉄（ベンガラ）、モリブデン赤、チタン酸鉄、銀朱、カドミウムレッド、アンチモン赤などがあげられる。褐色無機顔料としては、γ－酸化鉄などがあげられる。黄色無機顔料としては、黄酸化鉄、黄土、チタニウムイエロー、カドミウムイエロー、ストロンチウムイエロー、ジンククロメートなどがあげられる。 Examples of inorganic pigments include white inorganic pigments, red inorganic pigments, brown inorganic pigments, yellow inorganic pigments, black inorganic pigments, purple inorganic pigments, green inorganic pigments, and blue inorganic pigments. White inorganic pigments include titanium dioxide. , Titanium dioxide-coated mica, zinc oxide, molybdenum white, lithopone, barite, calcium carbonate, lead white, talc and the like.
Examples of red inorganic pigments include iron oxide (Bengara), molybdenum red, iron titanate, silver vermilion, cadmium red, and antimony red. Examples of the brown inorganic pigment include γ-iron oxide. Examples of yellow inorganic pigments include yellow iron oxide, ocher, titanium yellow, cadmium yellow, strontium yellow, and zinc chromate.
　黒色無機顔料としては、黒酸化鉄、カーボンブラック、低次酸化チタン、チタンブラックなどがあげられる。紫色無機顔料としては、マンゴバイオレット、コバルトバイオレットなどがあげられる。緑色無機顔料としては、エメラルド・グリーン、酸化クロム、水酸化クロム、チタン酸コバルトなどがあげられる。青色無機顔料としては、群青、紺青などがあげられる。 Examples of black inorganic pigments include black iron oxide, carbon black, low-order titanium oxide, and titanium black. Examples of purple inorganic pigments include mango violet and cobalt violet. Examples of green inorganic pigments include emerald green, chromium oxide, chromium hydroxide, and cobalt titanate. Examples of blue inorganic pigments include ultramarine blue and bitumen.
　さらに、上記の無機顔料に加え、酸化チタンコーテッドオキシ塩化ビスマス、酸化チタンコーテッドタルク、着色酸化チタンコーテッドマイカ、オキシ塩化ビスマス、魚鱗箔等のパール顔料、アルミニウムパウダー、カッパーパウダー等の金属粉末顔料も使用することができる。
　これら無機顔料は、１種を単独で用いてもよく、または所望の色調となるよう２種以上を混合して用いてもよい。 In addition to the above inorganic pigments, titanium oxide coated bismuth oxychloride, titanium oxide coated talc, colored titanium oxide coated mica, bismuth oxychloride, pearl pigments such as fish scale foil, and metal powder pigments such as aluminum powder and copper powder are also used. can do.
These inorganic pigments may be used alone or in combination of two or more so as to obtain a desired color tone.
　これらの無機顔料は、磁性体を含有した高分子物質チップを溶融紡糸する際に、顔料マスターバッチチップを適量ブレンドして溶融押出紡糸することによって、着色した磁性モノフィラメント２を得ることができる。 These inorganic pigments can be used to obtain a colored magnetic monofilament 2 by melt-spinning a suitable amount of a pigment master batch chip when melt spinning a polymer material chip containing a magnetic material.
　また無機系顔料マスターバッチに用いる樹脂は、磁性モノフィラメント２に用いられる樹脂と同じ樹脂で顔料を分散させたマスターバッチを用いることが好ましく、例えば、磁性モノフィラメント２を構成する高分子物質がポリブチレンテレフタレート、ポリエチレンテレフタレートまたはポリトリメチレンテレフタレートの場合はマスターバッチに使用する樹脂はポリエステル系樹脂での顔料マスターバッチが相溶性の面から好ましく、紡糸時の糸切れや顔料の着色斑等が発生し難いと云う特徴を有する。 The resin used for the inorganic pigment masterbatch is preferably a masterbatch in which the pigment is dispersed with the same resin as that used for the magnetic monofilament 2. For example, the polymer material constituting the magnetic monofilament 2 is polybutylene terephthalate. In the case of polyethylene terephthalate or polytrimethylene terephthalate, the resin used in the masterbatch is preferably a polyester masterbatch from the standpoint of compatibility, and yarn breakage during spinning and pigmentation spots on the pigment are unlikely to occur. It has the characteristic called.
　本発明の磁性モノフィラメント２を用いた磁性ブラシ１としては、前記磁性モノフィラメント２を植毛台３に植毛したブラシがあげられる。ここで、植毛とは、磁性モノフィラメント２を植毛台３に接着、固着、融着、植え込みなど、磁性モノフィラメント２が容易に脱離しないように保持することを云い、その手段、方法、順序は問わない。 Examples of the magnetic brush 1 using the magnetic monofilament 2 of the present invention include a brush obtained by flocking the magnetic monofilament 2 on a flocking table 3. Here, flocking means holding the magnetic monofilament 2 so as not to be easily detached, such as bonding, fixing, fusing, and implanting the magnetic monofilament 2 to the flocking table 3, and the means, method, and order thereof are not limited. Absent.
　具体的には、たとえば、樹脂、金属、皮革、ゴム、木など孔をあけることができる植毛台３に、本発明の磁性モノフィラメント２を植え込んだ植え込みブラシがあげられ、さらには、植え込みロールブラシ、植え込み板ブラシであってもよい。これらブラシは、シャフトとフィラメント２と植毛台３とが一体化しているシャフト方式のロールブラシであってもよく、あるいはフィラメント２の植毛台３が二つに分割される分割方式のロールブラシであってもよい。 Specifically, for example, an implantation brush in which the magnetic monofilament 2 of the present invention is implanted in a flocking table 3 capable of opening a hole such as resin, metal, leather, rubber, and wood, and further, an implantation roll brush, An implanted board brush may be used. These brushes may be shaft-type roll brushes in which the shaft, the filament 2 and the flocking table 3 are integrated, or may be split-type roll brushes in which the flocking table 3 of the filament 2 is divided into two. May be.
　これら磁性ブラシにおける磁性モノフィラメント２の配列は、使用目的の製造機器などに適したものであれば、通常この技術分野において汎用される配列、たとえば並列植え、千鳥植え、千鳥植えよりも磁性モノフィラメント２間の間隔を詰めた千鳥崩し植え、スパイラル植え、格子植えなどが採用できる。 As long as the arrangement of the magnetic monofilaments 2 in these magnetic brushes is suitable for the intended manufacturing equipment or the like, the magnetic monofilaments 2 are arranged more generally than arrangements commonly used in this technical field, for example, parallel planting, staggered planting, and staggered planting. Staggered planting, spiral planting, lattice planting, etc. can be adopted.
　本発明において、植毛台が熱可塑性樹脂である場合には、植毛台、ハンドブラシの場合はハンド部材、にも磁性体を含有させて、磁性モノフィラメントおよび植毛台やハンド部材が共に磁性を有するブラシとすることもできる。 In the present invention, when the flocking table is a thermoplastic resin, the flocking table, in the case of a hand brush, the hand member, the magnetic material is also contained in the brush, and the magnetic monofilament and the flocking table and the hand member both have magnetism. It can also be.
　磁性モノフィラメント２を、植毛台３に植毛させるには、たとえば、磁性モノフィラメント２の長さを目的に合わせて切断し、所望の形状に射出成型した熱可塑性樹脂に植毛台３の植毛部穴に磁性モノフィラメント２を植毛、金属フックでモノフィラメント２を樹脂に固定し、モノフィラメント２植毛台３に植え込まれた磁性モノフィラメント２の高さや外径を調整することによって、製造することができる。 In order to plant the magnetic monofilament 2 on the flocking table 3, for example, the length of the magnetic monofilament 2 is cut according to the purpose, and a thermoplastic resin injection-molded into a desired shape is magnetized in the flocked hole of the flocking table 3. The monofilament 2 can be produced by flocking, fixing the monofilament 2 to the resin with a metal hook, and adjusting the height and outer diameter of the magnetic monofilament 2 implanted in the monofilament 2 flocking table 3.
　図４は、無機顔料で着色された本発明の磁性モノフィラメントと、磁性体および無機顔料を含有するハンド部および植毛台からなる磁性ハンドブラシを示す図である。図４において、磁性ブラシ１１は、植毛台３１とハンド部材４とからなり、植毛台３１とハンド部材４は、磁性体と無機顔料を含有する熱可塑性樹脂で構成され、ブラシ全体が無機顔料で着色された磁性ハンドブラシである。 FIG. 4 is a diagram showing a magnetic hand brush composed of a magnetic monofilament of the present invention colored with an inorganic pigment, a hand part containing a magnetic substance and an inorganic pigment, and a flocking table. In FIG. 4, the magnetic brush 11 includes a flocking table 31 and a hand member 4, and the flocking table 31 and the hand member 4 are made of a thermoplastic resin containing a magnetic material and an inorganic pigment, and the entire brush is made of an inorganic pigment. It is a colored magnetic hand brush.
　かかる熱可塑性樹脂としては射出成型可能な樹脂で有ればよく、成型性に優れ衝撃強度に優れた熱可塑性樹脂が好ましい。さらに磁性モノフィラメント２を植毛した場合、熱可塑性樹脂を熱溶融させて磁性モノフィラメント２と接着させることが好ましいので、磁性モノフィラメント２を構成する高分子物質の融点に近い樹脂を適宜選択して使用することがさらに好ましい。 Such a thermoplastic resin may be any resin that can be injection molded, and is preferably a thermoplastic resin that is excellent in moldability and excellent in impact strength. Further, when the magnetic monofilament 2 is planted, it is preferable that the thermoplastic resin be melted and bonded to the magnetic monofilament 2, so that a resin close to the melting point of the polymer substance constituting the magnetic monofilament 2 is appropriately selected and used. Is more preferable.
　熱可塑性樹脂としては、たとえばポリオレフィン系樹脂、ポリエステル系樹脂、ポリアミド系樹脂、フッ素系樹脂、ポリエーテル系樹脂、ポリカーボネート系樹脂、ポリアセタール系樹脂、ポリアクリル系樹脂、ＡＢＳ樹脂、ポリスチレン系樹脂等があげられる。 Examples of thermoplastic resins include polyolefin resins, polyester resins, polyamide resins, fluorine resins, polyether resins, polycarbonate resins, polyacetal resins, polyacrylic resins, ABS resins, polystyrene resins, and the like. It is done.
　ポリオレフィン系樹脂としては、ポリエチレン、ポリプロピレンがあげられる。
ポリエステル系樹脂としては、ポリエチレンテレフタレート 、ポリトリメチレンテレフタレート、 ポリブチレンテレフタレート、これらの共重合ポリエステルなどがあげられる。 Examples of the polyolefin resin include polyethylene and polypropylene.
Examples of the polyester resin include polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, and copolymerized polyesters thereof.
　ポリアミド系樹脂としては、ナイロン６ 、ナイロン１１、 ナイロン１２、ナイロン６６、ナイロン６１０、ナイロン６１２、共重合ナイロンなどがあげられる。 Examples of the polyamide-based resin include nylon 6１１, nylon 11, nylon １２12, nylon 66, nylon 610, nylon 612, and copolymer nylon.
　フッ素系樹脂としては、ポリフッ化ビニリデン（ＰＶｄＦ）、エチレン・四フッ化エチレン共重合体（ＥＴＦＥ）などがあげられる。 Examples of the fluororesin include polyvinylidene fluoride (PVdF) and ethylene / tetrafluoroethylene copolymer (ETFE).
　　上記以外にも、ポリ酢酸ビニル、ポリ塩化ビニル、ポリ塩化ビニリデンなどのビニル樹脂であってもよい。 Other than the above, vinyl resins such as polyvinyl acetate, polyvinyl chloride, and polyvinylidene chloride may be used.
　　ポリアセタール、ポリカーボネート、ポリアクリル、ＡＢＳ、ポリスチレンも熱可塑性樹脂であり、好適に使用することができる。さらには、変性ポリフェニレンエーテル（ｍ－ＰＰＥ）も使用することができる。 Polyacetal, polycarbonate, polyacryl, ABS, and polystyrene are also thermoplastic resins and can be suitably used. Furthermore, modified polyphenylene ether (m-PPE) can also be used.
　これらの熱可塑性樹脂は、混合して用いてもよく、さらにはそれぞれの高分子を構成するモノマーを共重合したものであってもよく、あるいはポリマーアロイとしたものであっても、熱可塑性を失わないものであれば、好適に使用することができる。 These thermoplastic resins may be used as a mixture, or may be a copolymer obtained by copolymerizing monomers constituting each polymer, or a polymer alloy. If it is not lost, it can be suitably used.
　かかるものとしては、たとえば、塩化ビニル―酢酸ビニル共重合体（商品名：ビニヨンＨＨ，同：クレハロン）、アクリロニトリルー塩化ビニル共重合体があげられる。 Examples of such include vinyl chloride-vinyl acetate copolymer (trade name: Vignon HH, the same: Klehalon), and acrylonitrile-vinyl chloride copolymer.
　本発明においては、ポリエスエル系樹脂、ナイロン系樹脂、ポリオレフィン系樹脂、ポリカーボネート系樹脂、ＡＢＳ樹脂が好ましく、とりわけ、ポリエチレンまたはポリプロピレンが好ましい。 In the present invention, polyester resin, nylon resin, polyolefin resin, polycarbonate resin, and ABS resin are preferable, and polyethylene or polypropylene is particularly preferable.
　また、これらの樹脂にはさらに前記無機顔料を添加して、ブラシ毛と同色にブラシの保持部材の色を変えることができ、これにより、食品工場等ではライン毎に色の違う洗浄ブラシを使い分けて使用することができ、万一ブラシ毛が抜けたり、折れたり、ハンドル部が破損して食品に混入した場合は、金属探知機検査により検知され、混入した折れたブラシ毛や破損したハンドル部の色相によりどのラインで混入したが可能になり、食品工場での、異物混入対策が取りやすくなる。 Furthermore, the inorganic pigment can be added to these resins, and the color of the brush holding member can be changed to the same color as the brush bristles. This allows food plants to use different cleaning brushes for each line. In the unlikely event that the brush bristles come off or break, or the handle is damaged and mixed with food, it is detected by metal detector inspection, and the mixed broken bristles or broken handle It becomes possible to mix in which line by the hue of the color, and it becomes easy to take measures against contamination by food factories.
　また、熱可塑性樹脂植毛台３１に磁性モノフィラメント２１を植毛した磁性ブラシ１１は、次のようにして製造することができる。 Further, the magnetic brush 11 in which the magnetic monofilament 21 is planted on the thermoplastic resin planting table 31 can be manufactured as follows.
　本発明の磁性モノフィラメント２１は、紡糸後ブラシ毛とする為にブリッスル加工を行う。まずモノフィラメント２は原糸の巻き癖を直す為に、原糸を走行させながら連続的に乾熱セット機でセットされた後、綛巻き機にて四角形の綛にトウ状の繊維束に巻かれる。所定のトウ状の繊維束になったら、四角形の２端面を切断して綛巻き機から下ろして、トウ状の繊維束を竿に吊り下げて櫛を用い磁性モノフィラメント２を真っ直ぐなトウ状の繊維束になるように櫛通しを行う。次に、このトウ状の繊維束を紙巻き機にて糊付き紙で繊維束外周部をスパイラル状に巻いて1本の紙巻き繊維束（ハンク）を作成する。ハンクを乾燥後ブラシ毛の長さに応じた長さにハンクを裁断してブラシ製造工程へと送られる。 The magnetic monofilament 21 of the present invention is subjected to bristle processing to make brush hair after spinning. First, the monofilament 2 is continuously set by a dry heat setting machine while moving the raw yarn in order to correct the winding habit of the raw yarn, and is then wound around a tow-shaped fiber bundle on a square wrinkle by the winding machine. . When the predetermined tow-shaped fiber bundle is obtained, the two end faces of the square are cut off from the winding machine, the tow-shaped fiber bundle is hung on the scissors, and the magnetic monofilament 2 is straight tow-shaped using a comb. Do the combs in a bundle. Next, this tow-shaped fiber bundle is wound in a spiral shape on the outer periphery of the fiber bundle with glued paper using a paper winding machine to form one paper-wrapped fiber bundle (hank). After drying the hank, the hank is cut to a length corresponding to the length of the brush hair and sent to the brush manufacturing process.
　ブラシ製造工程では、自動植毛機にてカットハンクを植毛台３１に植毛する。植毛は通常ブラシ製造で行われている公知の方法を用いれば良く、ブラシ毛と植毛台３１を構成する樹脂との接合は、例えば、平線と呼ばれる抜け止め部材（真鍮片、ステンレス片、硬質樹脂片など）で毛束を２つ折りにして植毛する平線植毛法、毛束の一端を熱などの手段によって溶融結合し、この結合部を金型内に臨ませた状態でヘッド部樹脂を充填して固定するインモールド植毛法、毛束の一端とヘッド部を熱などの手段で溶融結合する熱溶融植毛法などを利用すればよい。 In the brush manufacturing process, the cut hank is planted on the planting table 31 with an automatic planting machine. The well-known method normally performed by brush manufacture should just be used for flocking, and the joining of the brush bristles and the resin constituting the flocking table 31 is, for example, a retaining member (a brass piece, a stainless piece, a hard wire called a flat wire). A flat wire flocking method in which the hair bundle is folded in two with a resin piece, etc., one end of the hair bundle is melt-bonded by means of heat or the like, and the head portion resin is placed in a state where this joint portion faces the mold. An in-mold flocking method for filling and fixing, a hot melt flocking method for melting and bonding one end of the hair bundle and the head portion by means such as heat may be used.
　図５は、本発明の磁性モノフィラメント２２と、磁性体を含有する植毛台３２と、長柄部５とからなる長柄付き磁性ブラシ１３を示す図である。
　この長柄付き磁性ブラシ１３の磁性モノフィラメント２２と植毛台３２は、前記と同じ素材および方法によって製造することができ、長柄部分５は高分子物質、木、金属などで構成される。植毛台３２と長柄部分５とは固定されてもよく、または回動自在に接合されていてもよい。
　植毛台３２と長柄部分５との固定、または接合は、この技術分野において汎用される部材と方法を採用することによって行うことができる。 FIG. 5 is a diagram showing a long-handled magnetic brush 13 comprising the magnetic monofilament 22 of the present invention, a flocking table 32 containing a magnetic material, and a long handle portion 5.
The magnetic monofilament 22 and the flocking table 32 of the magnetic brush 13 with long handle can be manufactured by the same material and method as described above, and the long handle portion 5 is made of a polymer material, wood, metal or the like. The flocking table 32 and the long handle 5 may be fixed or may be joined so as to be rotatable.
The flock base 32 and the long handle portion 5 can be fixed or joined by adopting members and methods widely used in this technical field.
　本発明の磁性モノフィラメント、植毛台などには、さらに防かび成分や抗菌成分を樹脂中に練り込むことによって、防かび効果、抗菌効果を有する磁性モノフィラメント、磁性ブラシとすることもできる。
　これらの防かび成分や抗菌成分は、前記樹脂に練り込む際の加熱によって、著しく効果が低下するものを除き、食品分野において使用されるものをいずれも好適に使用することもできる。
　さらには、使用中に散逸しない態様で用いるときは、前記樹脂への練り込み以外に、磁性モノフィラメントや植毛台、さらには磁性ブラシに防かび成分や抗菌成分を塗布してもよい。
　かかる防かび成分や抗菌成分としては、たとえば、無機系抗菌・防かび剤として、銀、亜鉛、銅金属を無機物坦持体に坦持した抗菌剤やリン酸塩系のリン酸カルシウム銀、ケイ酸塩系の銀ゼオライト、シリカゲル銀、粘土鉱物、溶融性ガラス、酸化物光触媒系のチタン、有機系抗菌・防かび剤として、チオシアン系、イソチアゾリン系、アルデヒド系、ニトリル系、ハロゲン系やイミダゾール系、チアゾール系、ピリジン系、ニトリル系などの防かび・抗菌成分があげられる。
　これらの防かび成分や抗菌成分は、その成分の効果を奏する用量となるように、樹脂に練り込むか、または塗布することにより、所定の効果を奏する。 The magnetic monofilament and flocking table of the present invention can be made into a magnetic monofilament and a magnetic brush having an antifungal effect and an antibacterial effect by further kneading an antifungal component and an antibacterial component into the resin.
Any of these fungicides and antibacterial components may be suitably used in the food field, except for those whose effects are significantly reduced by heating when kneaded into the resin.
Furthermore, when used in a mode that does not dissipate during use, in addition to kneading into the resin, an antifungal component or an antibacterial component may be applied to the magnetic monofilament, flocking table, or magnetic brush.
As such an antifungal component or antibacterial component, for example, as an inorganic antibacterial / antifungal agent, an antibacterial agent in which silver, zinc, or copper metal is carried on an inorganic carrier, a phosphate-based calcium silver phosphate, or a silicate Silver zeolite, silica gel silver, clay mineral, fusible glass, oxide photocatalyst titanium, organic antibacterial and antifungal agents, thiocyanate, isothiazoline, aldehyde, nitrile, halogen and imidazole, thiazole Mold, antibacterial components such as pyridine and nitrile.
These fungicidal components and antibacterial components exhibit a predetermined effect by being kneaded or applied to a resin so as to obtain a dose that exhibits the effect of the component.
　本発明の磁性モノフィラメント２および磁性ブラシ１は、この食品分野において常用される市販の金属検知機と組合せて用いることができ、金属探知機としてはたとえば、周波数８００Ｈｚで高周波コイルとの距離が７５ｍｍ高さで鉄球を通過させた時、０．４ｍｍФ球を検出できる感度を有する金属探知機であることが好ましい。 The magnetic monofilament 2 and the magnetic brush 1 of the present invention can be used in combination with a commercially available metal detector commonly used in the food field. As a metal detector, for example, the frequency is 800 Hz and the distance from the high frequency coil is 75 mm high. It is preferable that the metal detector has a sensitivity capable of detecting a 0.4 mm Ryukyu when an iron ball is passed therethrough.
　かかる金属探知機としては、たとえば金属検出機ＩＤ３Ｇ－３０００（株式会社イシダ製）があげられる。 An example of such a metal detector is a metal detector ID3G-3000 (manufactured by Ishida Co., Ltd.).
＜金属検知機による検知評価法＞
　金属検出機「ＩＤ３Ｇ－３０００－ＰＢ」（株式会社イシダ製）を用い、スポンジに本発明の磁性ブラシ用モノフィラメントを垂直に刺してベルトから３０ｍｍの高さで、ベルトスピード３８ｍ／分の速度で、金属検知器を通過させた時に、検知されるモノフィラメントの最小長さを計測した。 <Detection evaluation method using metal detector>
Using a metal detector “ID3G-3000-PB” (Ishida Co., Ltd.), the monofilament for magnetic brush of the present invention was vertically inserted into a sponge at a height of 30 mm from the belt at a belt speed of 38 m / min. The minimum length of monofilament detected when passing through a metal detector was measured.
＜飽和磁化の測定方法＞
　測定用試料：実験例で製作したモノフィラメントを用いた。
長さ約５ｍｍに切断したモノフィラメント８本を横に並べテープで固定させたものを測定用試料とした。 <Measurement method of saturation magnetization>
Sample for measurement: The monofilament manufactured in the experimental example was used.
A sample for measurement was prepared by horizontally arranging eight monofilaments cut to a length of about 5 mm and fixing them with tape.
　測定法：振動試料型磁力計（ＶＳＭ）「ＢＨＶ－５０Ｈ」（理研電子株式会社製）を用い、外部磁場（最大磁場５ＫＯｅ）を掃引して印加することで、試料の磁化曲線を室温で測定した。外部磁場の印加方向は繊維と垂直方向で測定した。得られた飽和磁化を繊維１ｇ当たりの値に規格化した。 Measurement method: Using a vibrating sample magnetometer (VSM) “BHV-50H” (manufactured by Riken Denshi Co., Ltd.), sweeping and applying an external magnetic field (maximum magnetic field 5 KOe) to measure the magnetization curve of the sample at room temperature did. The application direction of the external magnetic field was measured in the direction perpendicular to the fiber. The obtained saturation magnetization was normalized to a value per 1 g of fiber.
実施例１
　磁性粉体として平均粒子径０．２７μｍの四酸化三鉄「ＫＮ－３２０」（商品名、戸田工業株式会社製）とポリブチレンテレフタレート樹脂「ＮＯＶＡＤＵＲＡＮ５０２０」（商品名、三菱エンジニアリングプラスチックス株式会社製）を用い二軸押出機で四酸化三鉄を５０ｗｔ％含有するポリブチレンテレフタレート樹脂コンパウンドを製造した。 Example 1
As magnetic powder, triiron tetroxide “KN-320” (trade name, manufactured by Toda Kogyo Co., Ltd.) with an average particle size of 0.27 μm and polybutylene terephthalate resin “NOVADURAN 5020” (trade name, manufactured by Mitsubishi Engineering Plastics) Was used to produce a polybutylene terephthalate resin compound containing 50 wt% of triiron tetroxide by a twin screw extruder.
　このコンパウンドを用い、表１に示す四酸化三鉄含有ｗｔ％になるように、コンパウンドと同じポリブチレンテレフタレート樹脂チップとブレンド希釈して、１１０℃で１２時間の真空乾燥した後、エクストルーダー型紡糸装置のホッパーに投入して溶融紡糸を行った。押出機のポリマーを２６０℃で溶融し、２５０℃に加熱した紡糸パックによって紡出した。紡糸口金は口径２．４ｍｍの紡糸孔から押出して、紡出糸を６０℃の温水中で冷却して未延伸糸を得た。この未延伸糸を巻き取ることなく、９０℃の温水浴中で３．５倍に第１段延伸し、次いで全延伸倍率が４．５倍となるように、１５０℃の乾熱槽を通過させながら第２段延伸し、さらに１８０℃の乾熱槽を通過させて０．9倍の弛緩熱処理を行い、直径０．５ｍｍのモノフィラメントを得た。 Using this compound, blend dilution with the same polybutylene terephthalate resin chip as the compound so as to have the triiron tetraoxide-containing wt% shown in Table 1, and vacuum-drying at 110 ° C. for 12 hours, followed by extruder spinning The melt was spun into the hopper of the apparatus. The extruder polymer was melted at 260 ° C and spun by a spin pack heated to 250 ° C. The spinneret was extruded from a spinning hole having a diameter of 2.4 mm, and the spun yarn was cooled in warm water at 60 ° C. to obtain an undrawn yarn. Without winding up the undrawn yarn, the first stage drawing was performed 3.5 times in a 90 ° C. warm water bath, and then passed through a 150 ° C. dry heat bath so that the total draw ratio was 4.5 times. Then, the film was stretched in the second stage, further passed through a dry heat bath at 180 ° C. and subjected to a relaxation heat treatment of 0.9 times to obtain a monofilament having a diameter of 0.5 mm.
　得られたモノフィラメントについて、飽和磁化と金属検知機での検知されるモノフィラメントの最小長さを測定した。 For the obtained monofilament, the saturation magnetization and the minimum length of the monofilament detected by the metal detector were measured.
［結果］
　結果は、表１および図１に示すとおりである。 [result]
The results are as shown in Table 1 and FIG.
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-T000001
実施例２
　磁性粉体として平均粒子径０．２７μｍの四酸化三鉄ＫＮ－３２０とナイロン６とナイロン６６共重合ポリアミド樹脂「ＮＯＶＡＭＩＤ２０３０Ａ８」(商品名、ＤＳＭ社製))を用い二軸押出機で四酸化三鉄を５０ｗｔ％含有するポリアミド樹脂コンパウンドを作成した。 Example 2
As magnetic powder, triiron tetroxide KN-320 having an average particle size of 0.27 μm, nylon 6 and nylon 66 copolymer polyamide resin “NOVAMID 2030A8” (trade name, manufactured by DSM)) was used, and tritetratetraoxide using a twin screw extruder. A polyamide resin compound containing 50 wt% of iron was prepared.
　このコンパウンドを用い、表２に示す四酸化三鉄含有量になるように、コンパウンドを作成したポリアミド樹脂チップとブレンド希釈して、１１０℃で１２時間の真空乾燥した後、エクストルーダー型紡糸装置を使用して溶融紡糸を行った。押出機のポリマーを２５０℃で溶融し、２５０℃に加熱した紡糸パックによって紡出した。紡糸口金は口径２．４ｍｍの紡糸孔から押出して、紡出糸を３０℃の温水中で冷却して未伸糸を得た。この未延伸糸を巻き取ることなく、９０℃の温水浴中で３．５倍に第１段延伸し、次いで全延伸倍率が４．７倍となるように、１５０℃の乾熱槽を通過させながら第２段延伸し、さらに１８０℃の乾熱槽を通過させて０．９倍の弛緩熱処理を行い、直径０．５ｍｍのモノフィラメントを得た。 Using this compound, after blending and diluting with the polyamide resin chip for which the compound was prepared so as to have the ferric tetroxide content shown in Table 2, it was vacuum-dried at 110 ° C. for 12 hours, and then an extruder type spinning device was used. Used for melt spinning. The extruder polymer was melted at 250 ° C and spun by a spin pack heated to 250 ° C. The spinneret was extruded from a spinning hole having a diameter of 2.4 mm, and the spun yarn was cooled in warm water at 30 ° C. to obtain an undrawn yarn. Without winding up this undrawn yarn, it is first-stage drawn 3.5 times in a warm water bath at 90 ° C. and then passed through a 150 ° C. dry heat bath so that the total draw ratio becomes 4.7 times. Then, the film was stretched in the second stage, further passed through a dry heat bath at 180 ° C., and subjected to a relaxation heat treatment of 0.9 times to obtain a monofilament having a diameter of 0.5 mm.
　得られたモノフィラメントの飽和磁化と金属検知機での検知されるモノフィラメントの最小長さを測定した。 The saturation magnetization of the obtained monofilament and the minimum length of the monofilament detected by the metal detector were measured.
［結果］
　結果は、表２および図２に示すとおりである。 [result]
The results are as shown in Table 2 and FIG.
Figure JPOXMLDOC01-appb-T000002
Figure JPOXMLDOC01-appb-T000002
実施例３
　モノフィラメント用樹脂として、ポリトリメチレンテレフタレート樹脂「ＳＯＲＯＮＡ」（商品名、デュポン株式会社製）を用い、磁性体として、平均粒子径０．８μｍのフェライト粉末「Ｎｉ－ＺｎフェライトＫＮＩ－１０６」（商品名、ＪＦＥケミカル株式会社製）を用い二軸押出機でフェライト粉末を２０ｗｔ％含有するポリトリメチレンテレフタレート樹脂コンパウンドを製造した。このコンパウンド用い、温水温度を４０℃とする以外は実施例１と同様に実施することにより、０．５ｍｍ径の磁性モノフィラメントを得た。得られた磁性モノフィラメントは強度１．６ｃＮ／ｄｔｘ、伸度２０％、飽和磁化が２０ｅｍｕ／ｇであった。 Example 3
Polytrimethylene terephthalate resin “SORONA” (trade name, manufactured by DuPont) is used as the monofilament resin, and ferrite powder “Ni—Zn ferrite KNI-106” (trade name) having an average particle diameter of 0.8 μm is used as the magnetic material. Polytrimethylene terephthalate resin compound containing 20 wt% of ferrite powder using a twin screw extruder using JFE Chemical Co., Ltd.). Using this compound, a magnetic monofilament having a diameter of 0.5 mm was obtained in the same manner as in Example 1 except that the hot water temperature was 40 ° C. The obtained magnetic monofilament had a strength of 1.6 cN / dtx, an elongation of 20%, and a saturation magnetization of 20 emu / g.
実施例４
　熱可塑性樹脂として、ポリプロピレン樹脂「ノバテックＰＰＭＡ３Ｈ」（商品名、日本ポリプロ株式会社製）を用い、磁性体として平均粒子径０．２７μｍの四酸化三鉄「ＫＮ－３２０」を用いて、磁性体を１５ｗｔ％含有したポリプロピレン樹脂コンパウンド樹脂を製造した。 Example 4
As a thermoplastic resin, a polypropylene resin “Novatec PPMA3H” (trade name, manufactured by Nippon Polypro Co., Ltd.) is used, and as a magnetic material, triiron tetroxide “KN-320” having an average particle diameter of 0.27 μm is used. A polypropylene resin compound resin containing 15 wt% was produced.
　このコンパウンド樹脂を２００℃で溶融させ、射出成型機にセットしたハンドブラシの金型に、射出押し出しを行いハンドブラシの形状に成型した。 The compound resin was melted at 200 ° C., and injection-extruded into a hand brush mold set in an injection molding machine to form a hand brush shape.
　実施例１で製造した四酸化三鉄２０ｗｔ％含有するパーンに巻き取られた磁性モノフィラメントを、パーン巻の巻き癖を熱セットにより真っ直ぐな糸にする目的で、クリルスタンドに４０本パーンを設置してパーンを回転しながらモノフィラメントに撚りが入らない様に解舒しながら、糸に滑り性を付与する目的で第一ロール前に設置された噴霧装置にシリコン油剤としてＳＭ７０２５ＥＸ（東レダウコーニング社製）の１ｗｔ％水分散液を１ｋｇ／ｃｍ２圧力で磁性モノフィラメントに噴霧しながら、第一ロール速度２６ｍ／ｍｉｎ、第二ロール速度２５ｍ／ｍｉｎの速度で第一ロールと第二ロールの間に設置した熱風熱処理機を１５０℃でセットを行いながら、四角形の綛巻き機にて連続的にトウ状の繊維束（以下ハンクと云う）径が５０ｍｍになるまで巻きあげた。 For the purpose of making the magnetic monofilament wound up in the pirn containing 20 wt% of triiron tetroxide manufactured in Example 1 into a straight yarn by heat setting the pirn wound curl, 40 pirns were installed in the krill stand. SM7025EX (manufactured by Toray Dow Corning Co., Ltd.) as a silicone oil agent in the spraying device installed in front of the first roll for the purpose of imparting slidability to the yarn while unwinding so that the monofilament does not twist while rotating the pan. While being sprayed onto a magnetic monofilament at a pressure of 1 kg / cm 2, a 1 wt% aqueous dispersion was placed between the first roll and the second roll at a first roll speed of 26 m / min and a second roll speed of 25 m / min. While setting the hot air heat treatment machine at 150 ° C., the diameter of the tow-shaped fiber bundle (hereinafter referred to as “hank”) is 5 in a square winding machine. Rolled up to 0 mm.
　四角形の綛枠に巻き取られたハンクの対角２ヵ所を切断して、綛枠からハンクを取り出し竿に吊り下げ、櫛によりハンクの櫛通しを繰り返し行いモノフィラメントが真っ直ぐなハンクを得た。このハンクを半分に切断して、ハンクの外に紙巻き機にて糊付き紙で繊維束等の外周部をスパイラル状に巻いて一本の紙巻き繊維束（ハンク）を作成した。乾燥したハンクをハンクカッターにて長さ１０ｃｍにカットして、前記成型された植毛台に自動植毛機を用い金属平線と同時に押し込んでブラシ毛を固定し、磁性モノフィラメントを有する食品工場向け洗浄用ブラシを製造した。 ２ Cut two diagonal corners of the hunk wound around the square frame, remove the hunk from the frame, hang it on the basket, and repeat the hank combing with the comb to obtain a straight hunk with a monofilament. The hank was cut in half, and the outer periphery of the fiber bundle or the like was spirally wound around the hank with glued paper using a paper wrapping machine to form one cigarette fiber bundle (hank). Cut the dried hank to a length of 10 cm with a hank cutter, and use an automatic flocking machine to push the metal flock together with the metal flat wire to fix the brush hair, and for washing for food factories with magnetic monofilaments A brush was manufactured.
実施例５
　磁性粉体として平均粒子径４μｍのＳＵＳ４１０Ｌ「ＰＦ－５Ｆ」（商品名、エプソンアトミックス株式会社製）とポリブチレンテレフタレート樹脂「ＮＯＶＡＤＵＲＡＮ５０２０」（商品名、三菱エンジニアリングプラスチックス株式会社製）を用い二軸押出機でＰＦ－５Ｆを２５ｗｔ％含有するポリブチレンテレフタレート樹脂コンパウンドを製造した。 Example 5
Biaxial using SUS410L “PF-5F” (trade name, manufactured by Epson Atmix Co., Ltd.) and polybutylene terephthalate resin “NOVADURAN5020” (trade name, manufactured by Mitsubishi Engineering Plastics) with an average particle size of 4 μm as magnetic powders. A polybutylene terephthalate resin compound containing 25 wt% of PF-5F was produced by an extruder.
　このコンパウンドを１１０℃で１０時間の真空乾燥した後、エクストルーダー型紡糸装置を使用して溶融紡糸を行った。押出機のポリマーを２４０℃で溶融し、２４０℃に加熱した紡糸パックによって紡出した。紡糸口金は口径２．４ｍｍ、口数が２０個の丸型の口金および４００メッシュフィルターを設置して紡糸孔から吐出量が１３．２ｇ／分・口金で押出し、紡出糸をエアーギャップ５５ｍｍで６５℃の温水中で冷却して未延伸糸を得た。この未延伸糸を巻き取ることなく、９０℃の温水浴中で３．７倍に第１段延伸し、次いで全延伸倍率が４．３倍となるように、１２０℃の乾熱槽を通過させながら第２段延伸し、さらに１５０℃の乾熱槽を通過させて０．９倍の弛緩熱処理を行い、直径０．５ｍｍの磁性モノフィラメントを得た。 The compound was vacuum-dried at 110 ° C. for 10 hours and then melt-spun using an extruder-type spinning device. The extruder polymer was melted at 240 ° C and spun by a spin pack heated to 240 ° C. The spinneret was installed with a round die with a diameter of 2.4 mm and a number of 20 pieces, and a 400 mesh filter, and the discharge rate was extruded from the spinning hole at 13.2 g / min., And the spun yarn was 65 with an air gap of 55 mm. An undrawn yarn was obtained by cooling in warm water at 0 ° C. Without winding up the undrawn yarn, the first stage drawing was performed 3.7 times in a 90 ° C. warm water bath, and then passed through a 120 ° C. dry heat bath so that the total draw ratio was 4.3 times. Then, the film was stretched in the second stage, further passed through a dry heat bath at 150 ° C. and subjected to a relaxation heat treatment of 0.9 times to obtain a magnetic monofilament having a diameter of 0.5 mm.
　得られた磁性モノフィラメントは、強度１．８ｃＮ／ｄｔｘ、伸度１９％、飽和磁化１７ｅｍｕ／ｇであった。 The obtained magnetic monofilament had a strength of 1.8 cN / dtx, an elongation of 19%, and a saturation magnetization of 17 emu / g.
実施例６
　実施例５で得られたＰＦ－５Ｆを２５％含有するポリブチレンテレフタレート樹脂コンパウンド樹脂チップ９０部に、ＰＢＴ樹脂にウルトラマリン４０％配合した無機青色顔料マスターバッチチップ「ＰＢＴＭ（Ｆ）２７８２１」（商品名、大日精化工業株式会社製）を１０部添加して、実施例５と同様に紡糸して直径０．５ｍｍの青色に着色された磁性モノフィラメントを得た。 Example 6
Inorganic blue pigment masterbatch chip “PBTM (F) 27821” containing 90% polybutylene terephthalate resin compound resin chip containing 25% PF-5F obtained in Example 5 and 40% ultramarine in PBT resin (product) 10 parts by name, manufactured by Dainichi Seika Kogyo Co., Ltd. were added, and spinning was carried out in the same manner as in Example 5 to obtain a blue colored magnetic monofilament having a diameter of 0.5 mm.
　得られた青色に着色された磁性モノフィラメント２繊維は、強度１．７ｃＮ／ｄｔｘ、伸度１８％、飽和磁化１９ｅｍｕ／ｇであった。 The resulting blue-colored magnetic monofilament 2 fiber was 1.7 cN / dtx in strength, 18% in elongation, and 19 emu / g in saturation magnetization.
　また同様にＰＦ－５Ｆを２５％含有するポリブチレンテレフタレート樹脂コンパウンド樹脂チップ９７部に、ＰＢＴ樹脂にベンガラ（酸化第二鉄）６０％を配合した無機赤色顔料マスターバッチチップ「ＰＢＴＭ（Ｆ）２７８２０」（商品名、大日精化工業株式会社製）を３部添加して、実施例５と同様に紡糸して直径０．５ｍｍの赤色に着色された磁性モノフィラメントを得た。 Similarly, 97 parts of a polybutylene terephthalate resin compound resin chip containing 25% PF-5F and an inorganic red pigment master batch chip “PBTM (F) 27820” containing 60% Bengala (ferric oxide) in PBT resin. 3 parts (trade name, manufactured by Dainichi Seika Kogyo Co., Ltd.) were added, and spinning was performed in the same manner as in Example 5 to obtain a magnetic monofilament colored in red having a diameter of 0.5 mm.
　得られた赤色に着色された磁性モノフィラメントは、強度１．６ｃＮ／ｄｔｘ、伸度１８．９％、飽和磁化１８．５ｅｍｕ／ｇであった。 The obtained magnetic monofilament colored in red had a strength of 1.6 cN / dtx, an elongation of 18.9%, and a saturation magnetization of 18.5 emu / g.
実施例７
　熱可塑性樹脂として、ポリプロピレン樹脂「ノバテックＰＰＭＡ３Ｈ」（商品名、日本ポリプロ株式会社製）を用い、磁性体として平均粒子径４μｍのＳＵＳ４１０Ｌ「ＰＦ－５Ｆ」（商品名、エプソンアトミックス株式会社製）を添加率が２５ｗｔ％となるように添加し、さらに青色無機顔料としてウルトラマリン「ＭＩＬＯＲＩ　ＢＬＵＥ　Ｎ６５０」（商品名、大日精化工業株式会社製）を２．０ｗｔ％添加し混練して青色に着色したポリプロピレン樹脂コンパウンド樹脂を製造した。 Example 7
Polypropylene resin “NOVATEC PPMA3H” (trade name, manufactured by Nippon Polypro Co., Ltd.) is used as the thermoplastic resin, and SUS410L “PF-5F” (trade name, manufactured by Epson Atmix Co., Ltd.) having an average particle diameter of 4 μm is used as the magnetic material. It was added so that the addition rate was 25 wt%, and 2.0 wt% of ultramarine “MILORI BLUE N650” (trade name, manufactured by Dainichi Seika Kogyo Co., Ltd.) was added as a blue inorganic pigment and kneaded to give a blue color. A polypropylene resin compound resin was produced.
　また、同様にポリプロピレン樹脂「ノバテックＰＰＭＡ３Ｈ」（商品名、日本ポリプロ株式会社製）を用い、磁性体として平均粒子径４μｍのＳＵＳ４１０Ｌ「ＰＦ－５Ｆ」（商品名、エプソンアトミックス株式会社製）を添加率が２５ｗｔ％となるように添加し、さらに赤色無機顔料としてベンガラ（酸化第二鉄）「ＭＲ－１２０」（商品名、森下弁柄工業株式会社製）を１．２ｗｔ％添加し混練青色に着色したポリプロピレン樹脂コンパウンドを得た。得られた二つの着色コンパウンドの飽和磁化は１８ｅｍｕ／ｇであった。 Similarly, SUS410L “PF-5F” (trade name, manufactured by Epson Atmix Co., Ltd.) with an average particle diameter of 4 μm is added as a magnetic material using a polypropylene resin “Novatech PPMA3H” (trade name, manufactured by Nippon Polypro Co., Ltd.). The ratio is 25 wt%, and 1.2 wt% of bengara (ferric oxide) “MR-120” (trade name, manufactured by Morishita Bengal Kogyo Co., Ltd.) is added as a red inorganic pigment. A colored polypropylene resin compound was obtained. The saturation magnetization of the obtained two colored compounds was 18 emu / g.
　これら二つのコンパウンド樹脂をそれぞれ２００℃の温度で溶融させ、射出成型機にセットしたハンドブラシの金型に、射出押し出しを行いハンドブラシの形状に成型して、赤色および青色にそれぞれ着色したハンドブラシ植毛用成型品を得た。 Each of these two compound resins is melted at a temperature of 200 ° C., hand-molded into a hand brush mold set in an injection molding machine, molded into a hand brush shape, and colored in red and blue, respectively. A molded product for flocking was obtained.
　実施例６で製造したＳＵＳ４１０Ｌ粉末を２５ｗｔ％含有する青色と赤色磁性モノフィラメントを、それぞれ別に１７０℃の乾熱セット機でセットを行いながら、綛巻き機にてトウ状の繊維束に巻きあげた。このトウ状繊維束を竿に吊り下げ、櫛により真っ直ぐなトウ状繊維束を得た。このトウ状繊維束を紙巻き機にて糊付き紙で繊維束等の外周部をスパイラル状に巻いて一本の紙巻き繊維束（ハンク）を作成した。乾燥したハンクをハンクカッターにて長さ１０ｃｍにカットして、前記青色、赤色に着色成型された植毛台をベルギーＢＯＵＣＨＥＲＩＥ製自動植毛機にセットして、自動的に植毛台に植毛穴を開け、ステンレス片で毛束を２つ折りにして植毛する平線植毛法にてブラシ毛を押しこんで固定し植毛した、植毛後ロータリーカッターにて毛先を揃え、赤色および青色の２種類の磁性モノフィラメントの食品工場向け洗浄用ブラシを製造した。 The blue and red magnetic monofilaments containing 25 wt% of SUS410L powder produced in Example 6 were wound on tow-like fiber bundles with a winding machine while separately setting with a 170 ° C. dry heat setting machine. This tow-like fiber bundle was suspended from a cage and a straight tow-like fiber bundle was obtained with a comb. This tow-shaped fiber bundle was wound around the outer periphery of the fiber bundle or the like in a spiral shape with glued paper in a paper winding machine to create a single paper-wrapped fiber bundle (hank). Cut the dried hank to a length of 10 cm with a hank cutter, set the flocking table colored and colored in blue and red on an automatic flocking machine made by BUCHERIE Belgium, and automatically make a flocking hole in the flocking table, Folding the hair bundle in half with a piece of stainless steel and planting the hair by pushing the brush hairs in place, aligning the tips with a rotary cutter after planting, and using two types of magnetic monofilaments, red and blue Manufactured cleaning brushes for food factories.
実施例８
　洗浄用ブラシをモデル耐久試験機にセットし、刷掃回数増加によるブラシ毛の開き度合いとブラシ毛の折れが生じるか評価した。
　試験方法は洗浄ブラシヘッド部を金属製の波板上に位置してブラシ毛先端が波板表面に接するように波板と平行に対向配置し、この状態で洗浄ブラシヘッド部と波板の全体を水に浸漬し、洗浄ブラシヘッド部を波板の波と直交する向きに往復運動する。試験条件は、洗浄ブラシヘッド部に５００ｇの荷重を掛けた状態で、往復速度１５０回／分、刷掃ストローク４０ｍｍで２万回まで刷掃して、洗浄ブラシの毛開き状態とブラシ毛の折れが無いかの試験を行った。 Example 8
The cleaning brush was set in a model durability tester, and it was evaluated whether the degree of brush bristle opening and brush bristle caused by an increase in the number of times of brushing occurred.
The test method is to place the cleaning brush head part on the metal corrugated plate and place it in parallel with the corrugated sheet so that the tip of the bristle is in contact with the corrugated plate surface. Is immersed in water, and the cleaning brush head is reciprocated in a direction perpendicular to the wave of the corrugated plate. The test condition is that the cleaning brush head is loaded with a load of 500 g, the brush is brushed up to 20,000 times with a reciprocating speed of 150 times / minute, and a brushing stroke of 40 mm. A test was conducted to determine whether there was any.
　その結果、実施例７で得られた、赤色着色および青色着色の食品工場向け洗浄用ブラシともブラシ毛の折れは無く、ブラシ毛の開きも殆ど無く、洗浄ブラシとして優れた耐久性を有することを確認した。 As a result, both the red and blue colored cleaning brushes for food factories obtained in Example 7 had no brush hair breakage, almost no brush hair opening, and had excellent durability as a cleaning brush. confirmed.
比較例１
　実施例５で得られたＰＦ－５Ｆを２５％含有するポリブチレンテレフタレート樹脂コンパウンド樹脂チップ９５部に、ＰＢＴ樹脂にフタロシアニンブル２０％配合した有機青色顔料マスターバッチチップ「ＰＢＴＭ（Ｆ）２７８８５」（商品名、大日精化工業株式会社製）を５部添加して、実施例５と同様に紡糸して直径０．５ｍｍの青色に着色された磁性モノフィラメントを得た。得られた青色に着色された磁性モノフィラメントは、糸の長さ方向に繊径が均一で無く凹凸のあるモノフィラメントであり、強度０．８ｃＮ／ｄｔｘ、伸度１０％であり、ブラシ毛として使用するには強度が低く、タフネスも低く、毛折れし易い磁性モノフィラメントであった。 Comparative Example 1
Organic blue pigment master batch chip “PBTM (F) 27885” in which 95 parts of a polybutylene terephthalate resin compound resin chip containing 25% of PF-5F obtained in Example 5 is blended with 20% phthalocyanine in PBT resin (product) 5 parts by name, manufactured by Dainichi Seika Kogyo Co., Ltd. were added, and spinning was carried out in the same manner as in Example 5 to obtain a blue colored magnetic monofilament having a diameter of 0.5 mm. The obtained blue-colored magnetic monofilament is a monofilament with unevenness and unevenness in the yarn length direction, strength 0.8 cN / dtx, elongation 10%, and used as brush hair. Was a magnetic monofilament with low strength, low toughness and easy breakage.
　また同様にＰＦ－５Ｆを２５％含有するポリブチレンテレフタレート樹脂コンパウンド樹脂チップ９０部にＰＢＴ樹脂に、アンスラキノン系イエロー３０％を配合した有機黄色顔料マスターバッチチップ「ＰＢＴＭ（Ｆ）２７８６０」（商品名、大日精化工業株式会社製）を５部添加して、実施例５と同様に紡糸して直径０．５ｍｍの黄色に着色された磁性モノフィラメント２を得た。得られた黄色に着色された磁性モノフィラメントは、青色に着色されたモノフィラメントと同様に糸の長さ方向に繊径が均一で無く凹凸のあるモノフィラメントであり、強度１．０ｃＮ／ｄｔｘ、伸度８％であり、ブラシ毛として使用するには強度が低く、タフネスも低く、毛折れし易い磁性モノフィラメントであった。 Similarly, 90 parts of a polybutylene terephthalate resin compound resin chip containing 25% PF-5F, an organic yellow pigment master batch chip “PBTM (F) 27860” in which PBT resin and 30% anthraquinone yellow are blended (trade name) 5 parts, manufactured by Dainichi Seika Kogyo Co., Ltd.) was spun in the same manner as in Example 5 to obtain a yellow colored magnetic monofilament 2 having a diameter of 0.5 mm. The obtained yellow-colored magnetic monofilament is a monofilament having unevenness and unevenness in the yarn length direction, similarly to the blue-colored monofilament, and has a strength of 1.0 cN / dtx and an elongation of 8 The magnetic monofilament was low in strength and low toughness when used as a brush hair, and was easily broken.
比較例２
　実施例５で使用したＰＦ－５Ｆを２５ｗｔ％含有するポリブチレンテレフタレート樹脂コンパウンドを用い、１１５℃で８時間の真空乾燥した後、エクストルーダー型紡糸装置を使用して溶融紡糸を行った。押出機のポリマーを２４０℃温度で溶融し、２４０℃に加熱した紡糸パックによって紡出した。紡糸口金は口径２．４ｍｍ、口数が２０個の丸型の口金および４００メッシュフィルターを設置して紡糸孔から吐出量が９．２ｇ／分・口金で押出し、紡出糸をエアーギャップ５５ｍｍで６０℃の温水中で冷却して未延伸糸を得た。 Comparative Example 2
The polybutylene terephthalate resin compound containing 25 wt% of PF-5F used in Example 5 was vacuum-dried at 115 ° C. for 8 hours, and then melt spinning was performed using an extruder-type spinning device. The extruder polymer was melted at a temperature of 240 ° C. and spun by a spin pack heated to 240 ° C. The spinneret was installed with a round die with a diameter of 2.4 mm and a number of 20 pieces and a 400 mesh filter, and the discharge rate was extruded from the spinning hole at a rate of 9.2 g / min., And the spun yarn was 60 with an air gap of 55 mm. An undrawn yarn was obtained by cooling in warm water at 0 ° C.
　この未延伸糸を巻き取ることなく、９０℃の温水浴中で２．５倍に第１段延伸し、次いで全延伸倍率が３．０倍となるように、１２０℃の乾熱槽を通過させながら第２段延伸し、さらに１５０℃の乾熱槽を通過させて０．８倍の弛緩熱処理を行い、直径０．５ｍｍの磁性モノフィラメントを得た。 Without winding up the undrawn yarn, the first stage drawing is performed 2.5 times in a warm water bath at 90 ° C., and then passed through a 120 ° C. dry heat bath so that the total draw ratio is 3.0 times. Then, the film was stretched in the second stage, further passed through a dry heat bath at 150 ° C. and subjected to a relaxation heat treatment of 0.8 times to obtain a magnetic monofilament having a diameter of 0.5 mm.
　得られた磁性モノフィラメントは、強度１．０ｃＮ／ｄｔｘ、伸度３８．２％、飽和磁化１８ｅｍｕ／ｇであった。 The magnetic monofilament obtained had a strength of 1.0 cN / dtx, an elongation of 38.2%, and a saturation magnetization of 18 emu / g.
　得られた磁性モノフィラメントを実施例７と同様にして洗浄ブラシを製造した。
この洗浄ブラシを実施例８と同様にしてモデル耐久試験を行った結果、ブラシ毛の折れは生じなかったが、ブラシ毛の開きが大きく、洗浄性に劣る洗浄ブラシであった。 A cleaning brush was produced in the same manner as in Example 7 using the obtained magnetic monofilament.
A model durability test was conducted on this cleaning brush in the same manner as in Example 8. As a result, the brush hair did not break, but the brush brush had a large opening and was inferior in cleanability.
　本発明は、その精神または主要な特徴から逸脱することなく、他のいろいろな形態で実施できる。したがって、前述の実施形態はあらゆる点で単なる例示に過ぎず、本発明の範囲は請求の範囲に示すものであって、明細書本文には何ら拘束されない。さらに、請求の範囲に属する変形や変更は全て本発明の範囲内のものである。 The present invention can be implemented in various other forms without departing from the spirit or main features thereof. Therefore, the above-described embodiment is merely an example in all points, and the scope of the present invention is shown in the scope of claims, and is not restricted by the text of the specification. Further, all modifications and changes belonging to the claims are within the scope of the present invention.
１、１１、１３　本発明の磁性モノフィラメントを用いた磁性ブラシ
２、２１、２２　本発明の磁性モノフィラメント
３、３１、３２　植毛台
４　ハンド部
５　長柄 1, 11, 13 Magnetic brushes 2, 21, 22 using the magnetic monofilament of the present invention Magnetic monofilaments 3, 31, 32 of the present invention Flocking table 4 Hand portion 5 Long handle

Claims (9)

  1. 　高分子モノフィラメントと、該高分子モノフィラメント中に含有される磁性体とを含み、飽和磁化が３ｅｍｕ／ｇ以上となるよう、前記高分子モノフィラメント中に前記磁性体を分散させてなることを特徴とする磁性モノフィラメント。 A polymer monofilament and a magnetic substance contained in the polymer monofilament, wherein the magnetic substance is dispersed in the polymer monofilament so as to have a saturation magnetization of 3 emu / g or more. Magnetic monofilament.
  2. 　前記磁性モノフィラメントの直径が０．１～１．０ｍｍであり、引張強度が１．５ｃＮ／ｄｔｅｘ以上であり、伸度が１５～３５％であることを特徴とする請求項１に記載の磁性モノフィラメント。 The magnetic monofilament according to claim 1, wherein the magnetic monofilament has a diameter of 0.1 to 1.0 mm, a tensile strength of 1.5 cN / dtex or more, and an elongation of 15 to 35%. .
  3. 　高分子モノフィラメントを構成する高分子物質が、ポリエステル系樹脂およびポリアミド系樹脂の少なくとも１種であり、磁性体が遷移金属磁性体、遷移金属合金磁性体、金属間化合物磁性体、酸化物磁性体のいずれか１種以上であることを特徴とする請求項１または２に記載の磁性モノフィラメント。 The polymer material constituting the polymer monofilament is at least one of a polyester resin and a polyamide resin, and the magnetic material is a transition metal magnetic material, a transition metal alloy magnetic material, an intermetallic compound magnetic material, or an oxide magnetic material. The magnetic monofilament according to claim 1 or 2, wherein one or more of them are used.
  4. 　磁性モノフィラメント中に、さらに無機顔料を含むことによって、前記磁性モノフィラメントが無機顔料で着色されてなることを特徴とする請求項１～３のいずれか１項に記載の磁性モノフィラメント。 The magnetic monofilament according to any one of claims 1 to 3, wherein the magnetic monofilament is further colored with an inorganic pigment by further containing an inorganic pigment in the magnetic monofilament.
  5. 　請求項１～４のいずれか１項に記載の磁性モノフィラメントと、前記磁性モノフィラメントを植毛する植毛台とを含み、前記磁性モノフィラメントが前記植毛台に植毛されてなることを特徴とする磁性ブラシ。 A magnetic brush comprising the magnetic monofilament according to any one of claims 1 to 4 and a flocking table for flocking the magnetic monofilament, wherein the magnetic monofilament is flocked to the flocking table.
  6. 　磁性モノフィラメントを植毛する植毛台が熱可塑性樹脂および磁性体を含み、前記植毛台中に、磁性体が含有されてなることを特徴とする請求項４に記載の磁性ブラシ。 The magnetic brush according to claim 4, wherein the flocking table for flocking the magnetic monofilament includes a thermoplastic resin and a magnetic material, and the flocking table contains a magnetic material.
  7. 　請求項３に記載の無機顔料で着色された磁性モノフィラメントが、無機顔料および磁性体を含む熱可塑性樹脂の植毛台に植毛されてなることを特徴とする磁性ブラシ。 A magnetic brush, wherein the magnetic monofilament colored with the inorganic pigment according to claim 3 is planted on a planting table made of a thermoplastic resin containing an inorganic pigment and a magnetic material.
  8. 　高分子モノフィラメントと、該高分子モノフィラメント中に分散されてなる磁性体とを含み、飽和磁化が３ｅｍｕ／ｇ以上である磁性モノフィラメントの製造方法であって、
    　モノフィラメントを構成する高分子物質と、磁性体粉末とを、流動状態で混合する混合工程と、
    　前記混合工程で混合された高分子物質と磁性体粉末の混合物を紡糸する紡糸工程と、
    　前記紡糸工程で得られたモノフィラメントを延伸する延伸工程とを含むことを特徴とする磁性モノフィラメントの製造方法。     A method for producing a magnetic monofilament comprising a polymer monofilament and a magnetic material dispersed in the polymer monofilament and having a saturation magnetization of 3 emu / g or more,
    A mixing step of mixing the polymer substance constituting the monofilament and the magnetic powder in a fluidized state;
    A spinning step of spinning the mixture of the polymer substance and the magnetic powder mixed in the mixing step;
    And a drawing step of drawing the monofilament obtained in the spinning step.
  9. 　前記混合工程において、前記高分子物質と前記磁性体粉末に加えて、さらに無機顔料を流動状態で混合することを特徴とする請求項７に記載の磁性モノフィラメントの製造方法。 The method for producing a magnetic monofilament according to claim 7, wherein in the mixing step, an inorganic pigment is further mixed in a fluid state in addition to the polymer substance and the magnetic powder.
PCT/JP2013/069449 2012-07-17 2013-07-17 Magnetic monofilament, magnetic brush, and production method for said magnetic monofilament and said magnetic brush WO2014014038A1 (en)

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JP2016163662A (en) * 2015-03-06 2016-09-08 高島産業株式会社 Brush
JP2021168899A (en) * 2020-04-14 2021-10-28 グァンドン ニューダーモー バイオテック カンパニー リミテッドGuangDong Newdermo Biotech Co., Ltd Manufacture method for porous antimicrobial fiber brush
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JP2014237786A (en) * 2013-06-10 2014-12-18 アラム株式会社 Rubber, synthetic resin-made molding and food processing plant
JP2016163662A (en) * 2015-03-06 2016-09-08 高島産業株式会社 Brush
JP2021168899A (en) * 2020-04-14 2021-10-28 グァンドン ニューダーモー バイオテック カンパニー リミテッドGuangDong Newdermo Biotech Co., Ltd Manufacture method for porous antimicrobial fiber brush
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