CN110983754A - Post-treatment method of textile material - Google Patents
Post-treatment method of textile material Download PDFInfo
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- CN110983754A CN110983754A CN201911179956.1A CN201911179956A CN110983754A CN 110983754 A CN110983754 A CN 110983754A CN 201911179956 A CN201911179956 A CN 201911179956A CN 110983754 A CN110983754 A CN 110983754A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/01—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with hydrogen, water or heavy water; with hydrides of metals or complexes thereof; with boranes, diboranes, silanes, disilanes, phosphines, diphosphines, stibines, distibines, arsines, or diarsines or complexes thereof
- D06M11/05—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with hydrogen, water or heavy water; with hydrides of metals or complexes thereof; with boranes, diboranes, silanes, disilanes, phosphines, diphosphines, stibines, distibines, arsines, or diarsines or complexes thereof with water, e.g. steam; with heavy water
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/10—Animal fibres
- D06M2101/12—Keratin fibres or silk
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/35—Abrasion, pilling or fibrillation resistance
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- Textile Engineering (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention relates to a post-treatment method of a textile material, which specifically comprises the following steps: continuously spray nanostructure active water ion in order to promote its performance on the textile material surface, the textile material is the wool fabric, the performance is for anti-fluff pilling performance, nanostructure active water ion is provided by nanostructure active water ion generating device, nanostructure active water ion generating device includes discharge system, discharge system includes the electrode, the electrode is hollow circular cylinder structure, hollow portion's transversal four-leaf shape of personally submitting, four-leaf shape is the axial symmetry shape, constitute by cross and four cones, four cones are located four criss-cross ends, and conical sharp end is connected with the cross, the cross is kept away from to the round butt, the criss-cross center is located the center pin of electrode. The method effectively improves the performance of the textile material, and solves the problems of expensive equipment, complex process, difficult control of the operation process, difficult large-area preparation and the like in the post-treatment of the textile material in the prior art.
Description
Technical Field
The invention belongs to the technical field of post-treatment of textile materials, and relates to a post-treatment method of a textile material.
Background
In order to improve the quality of textiles and meet the requirements of the market on various aspects such as comfort, functionality, fashion, safety, environmental protection and the like of textile products, the textiles need to be subjected to post-treatment. However, the current post-treatment mostly adopts a wet chemical treatment mode, and the method has the defects of expensive equipment, complex process, difficult control of operation process, difficult large-area preparation, possible pollution caused by using chemical substances, consumption of a large amount of resources for reaching reaction conditions and non-conformity with the sustainable development advocated by the current society.
For example, wool knitted garments often exhibit pilling during everyday wear and use, which not only severely affects the look and feel of the garment, but also reduces the useful life of the garment. The existing method for improving the pilling resistance of the wool fabric comprises a chemical method, typical chemical treatment methods mainly comprise a resin finishing method, a chlorination method and the like, and the methods can form a film on the surface of the fabric so as to reduce the friction between fibers, and can also remove a hydrophobic lipid layer or destroy disulfide bonds in wool keratin so as to achieve the purpose of improving the pilling resistance of the wool fabric. However, these wet treatment methods are very harmful to the ecological environment due to the use of large amounts of water, energy and chemicals, and the generation of polluting liquid effluents or toxic waste gases, contrary to the green, sustainable ecological development.
Therefore, there is a need to further explore efficient and feasible textile material post-processing techniques.
The nano-structure active water ions are a two-phase substance structure formed by coating a large amount of active oxygen components (including hydroxyl free radicals, superoxide free radicals and the like) and electrons by nano-scale water droplets, and are successfully applied to the fields of air purification, food preservation, beauty and skin care and the like at present. The nano-structure active water ions are a novel environment-friendly technology, based on an electrostatic atomization theory, and are formed by applying high voltage to liquid water supplied by a metal capillary tube to form a Taylor cone under the action of electric shearing stress and form charged liquid drops through top jet flow, and the liquid drops are continuously dispersed under the interaction of coulomb repulsion and surface tension. The active water ions with the nano structure contain a large amount of active free radical components, have strong oxidizability and are expected to be applied to the post-treatment of textiles.
At present, the existing nano-structure active water ion generating device on the market has the following problems:
(1) most of the nano-structure active water ion generating devices supply liquid in a semiconductor condensation mode, and the phenomenon of unstable liquid supply is easily caused by overhigh or overlow external environment humidity;
(2) the existing active water ion generating devices with nano structures are single-needle devices, the generation amount is limited, and the action efficiency is low;
(3) the electrodes of the existing nano-structure active water ion generating device are distributed in a ring shape, and the electric field intensity is low;
(4) the parameters of the existing nano-structure active water ion generating device are all set in a fixed value and are single, and the nano-structure active water ions with different sizes cannot be generated by changing the parameters of the generating device so as to meet the requirements of practical application.
Therefore, the research on the nano-structure water ion generating device which has stable liquid supply, high formed electric field intensity, capability of generating nano-structure active water ions with different particle sizes and high acting efficiency and the application of the nano-structure water ion generating device in the post-treatment of textile materials have very important significance.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, the textile material post-treatment has expensive equipment, complex process, difficult control of operation process, difficult large-area preparation, possible pollution caused by using chemical substances, large resource consumption for reaching reaction conditions, non-conformity with sustainable development advocated by the current society and the like, provides a post-treatment method of the textile material, particularly solves the problems that the method for improving the pilling resistance of wool fabric in the prior art influences the hand feeling of the wool fabric, is very unfavorable for ecological environment and the like, and provides a method for safely, environmentally and efficiently improving the pilling resistance of the wool fabric.
In order to achieve the purpose, the invention adopts the following scheme:
a method for post-treating textile material features that the active water ions with nano structure are continuously sprayed on the surface of textile material to improve its performance. The invention discloses a nano-structure active water ion (also called nano-water ion in commerce) which is a two-phase substance structure formed by coating a large number of active oxygen components (including hydroxyl free radicals, superoxide free radicals and the like) and electrons on nano-scale water droplets, is mainly applied to the fields of air purification, food preservation, beauty treatment, skin care and the like at present, and has no report of applying the nano-structure active water ion to the post-treatment of textiles.
As a preferable scheme:
in the method for post-treating the textile material, the textile material is wool fabric, and the performance is fuzz and pilling resistance. Free radical component in the active water ion of nanometer structure can decompose the epidermis structure of wool fibre for fibre surface is smooth more gentle and agreeable, and nanometer water particle in the active water ion of nanometer structure is attached to fibre surface simultaneously, also can reduce fibre surface's coefficient of friction, consequently makes fibre activity more nimble in the fabric, is difficult for taking place the phenomenon of tangling, thereby has slowed down the pilling process of fabric, has promoted its anti-pilling performance.
In a method of post-treating a textile material as hereinbefore described, the nano-structured active water ions are provided by a nano-structured active water ion generating means. The specific source of the nanostructured active water ions in the present invention is not limited, and any device capable of generating nanostructured active water ions may be applied to the present invention.
As mentioned above, a textile material's aftertreatment method, nanostructure active water ion generating device, including the discharge system, the discharge system includes the electrode, the electrode is hollow circular cylinder structure, hollow portion's transversal personally submits the four-leaf shape, the four-leaf shape is the axisymmetric shape (regular axisymmetric shape is favorable to increasing the degree of consistency of electric field, improve the utilization efficiency), constitute by cross and four toper, four toper are located four ends of cross, and the conical sharp end is connected with the cross, the cross is kept away from to the round butt, the cross center is located the center pin of electrode (when the cross center sets up on the electrode center pin, the electric field is average symmetry, electric field distribution at this moment is the most even, effective utilization is the highest).
The invention mainly solves the problem by changing a ring-shaped electrode in the existing device and adopting a novel hollow cylindrical structure electrode to effectively improve the distribution of the electric field intensity in the electrostatic atomization process. Compared with the annular electrode in the existing device, the electrode in the nano-structure active water ion generating device has higher efficiency because the field intensity of the annular electrode is mainly concentrated in the annular part, and the hollow cylindrical structure electrode provided by the device has a special needle point type structure, and the structure has a larger contact area with the annular electrode, so that the hollow cylindrical structure electrode has a larger discharge area (stronger field intensity around four conical and cross parts) when discharging, and therefore, the electric field intensity is larger under the conditions of the same voltage, flow rate and the like, and more nano-structure active water ions can be generated in unit time.
According to the post-treatment method of the textile material, the number of the electrodes is n, and the discharge system further comprises n discharge needles, a high-voltage wire, a grounding wire and a direct-current high-voltage power supply;
n-1 discharge needles are uniformly distributed around the circumference of 1 discharge needle, and the center distance between two adjacent discharge needles is more than 2 cm;
the nano-structure water ion generating device in the prior art has low action efficiency, and the discharge needles in the invention adopt an array needle head arrangement mode, thereby improving the generation quantity of nano-structure active water ions and greatly improving the action efficiency;
the n electrodes are positioned under the n discharge needles and correspond to the n discharge needles one by one, and the central axis of each discharge needle is superposed with the central axis of the corresponding electrode;
the direct-current high-voltage power supply is connected with all the discharge needles through high-voltage wires, and all the electrodes are grounded through a grounding wire;
the nano-structure active water ion generating device can generate nano-structure active water ions with different sizes by changing parameters such as applied direct current voltage, liquid flow velocity, space between a discharge needle and an electrode and the like, and provides reliable technical support for experimental research and application of the nano-structure active water ions.
According to the post-treatment method of the textile material, the discharge system further comprises the needle dial and the electrode tray, the n discharge needles are vertically inserted on the needle dial, the n electrodes are fixed on the electrode tray, and the positions of the electrode tray, corresponding to the hollow parts of the electrodes, are hollow.
According to the post-treatment method of the textile material, the nano-structure active water ion generation device further comprises a liquid supply system, the liquid supply system is simultaneously communicated with the n discharge needles, the liquid supply system mainly comprises a needle cylinder, a micro-injection pump and a guide pipe, and the needle cylinder is used for containing liquid, is placed in the micro-injection pump and is communicated with the n discharge needles through the guide pipe.
The nano-structure active water ion generating device has the advantages that liquid supply is unstable, the nano-structure active water ion generating device adopts a liquid supply mode of an injection pump, so that the operation of the nano-structure active water ion generating device is not influenced by the humidity of outside air, a stable and sufficient liquid source can be provided even if the air is dry, and the discharge needles can be ensured to generate sufficient nano-structure active water ions.
According to the post-treatment method of the textile material, the nano-structure active water ion generating device further comprises an auxiliary system, wherein the auxiliary system mainly comprises an object stage, 2 lifting rods and a box body outer cover;
the objective table is positioned below the electrode tray, and the needle plate, the electrode tray and the objective table are simultaneously and vertically connected with the 2 lifting rods;
the discharge needle, the needle disc, the electrode tray, the objective table and the lifting rod are arranged inside the box body outer cover, the needle cylinder, the micro-injection pump and the direct-current high-voltage power supply are arranged outside the box body outer cover, and the guide pipe, the high-voltage wire and the grounding wire penetrate through the box body outer cover. The objective table is used for placing the sample of handling, for example textile material etc. the lifter is used for adjusting the interval of electrode and discharge needle and the interval of electrode and objective table, and the box dustcoat mainly provides a relatively stable effect environment, prevents to influence the use of device because of external humiture change or other factors.
The post-treatment method of the textile material comprises the following specific processes: and laying the wool fabric on an objective table of the nano-structure active water ion generating device, adding high-purity water into the needle cylinder, starting the liquid supply system and the discharge system, and keeping for a period of time to obtain the anti-pilling modified wool fabric.
As mentioned above, the resistivity of the high-purity water is 18M omega cm (in the electrostatic atomization process, the conductivity of the liquid affects the surface tension and coulomb force of the liquid drop in the atomization process, and has a very important relation with the size of the finally formed liquid drop), the distance between the discharge needle and the electrode ranges from 0.5cm to 2cm, the direct current voltage of the direct current high-voltage power supply ranges from-3.8 kV to-7 kV, because the application aims at improving the anti-pilling performance of the wool fabric, the direct current voltage of the direct current high-voltage power supply ranges from-3.8 kV to-7 kV, the purpose is to ensure that the concentration of the free radicals is higher so as to improve the significance of the wool treatment effect, the mentioned post-treatment method of the textile material can also be used for improving the hydrophilic performance of the terylene fabric, and the value range of the direct current voltage to-10 kV is set to be more suitable at the moment, the purpose is to match with the surface structure of terylene, the infusion speed of a micro-injection pump is 0.9-10 mu L/min, the distance between an electrode tray and an objective table is 0-10 cm, and the time is more than or equal to 30 min.
Has the advantages that:
(1) the nano-structure active water ion generating device disclosed by the invention not only can meet the requirements of stable and efficient generation of nano-structure active water ions, but also can meet the research requirements of nano-structure active water ions with different sizes by adjusting various parameters of the generating device;
(2) the nano-structure active water ion generating device improves the generation quantity of nano-structure active water ions and greatly improves the action efficiency;
(3) the invention adopts the nano-structure active water ion generating device to carry out anti-fuzzing and anti-pilling modification on the wool fabric, has simple and convenient operation, higher efficiency and easy industrial production, and has great popularization value;
(4) the textile material post-treatment method disclosed by the invention is high in efficiency, safe and environment-friendly, and effectively solves the problems in the prior art of textile material post-treatment.
Drawings
FIG. 1 is a diagram of the electric field distribution of the electrodes of the nanostructured active water ion generating device according to the present invention;
FIG. 2 is a diagram of the electric field distribution of a ring-shaped electrode of a prior art nanostructured active water ion generating device;
FIG. 3 is a schematic plan view of a nanostructured active water ion generating device according to the present invention;
FIG. 4 is a schematic perspective view of an electrode of the nanostructured active water ion generating device according to the present invention;
FIG. 5 is a top view of a needle plate and a discharge needle in the nanostructured active water ion generating device according to the present invention;
FIG. 6 is a top view of an electrode and an electrode tray in the nanostructured active water ion generating device according to the present invention;
FIG. 7 is a diagram showing the relative positions of the discharge needles and the electrodes in the nanostructured active water ion generating device according to the present invention;
FIG. 8 is a graph showing the evaluation results of pilling resistance of wool fabrics treated with nano-structured active water ions and untreated with nano-structured active water ions;
the electrode comprises 1-a hollow part of an electrode, 2-a needle cylinder, 3-a micro-injection pump, 4-a guide pipe, 5-a direct-current high-voltage power supply, 6-a discharge needle, 7-a needle dial, 8-an electrode, 9-an electrode tray, 10-an object stage, 11-a lifting rod, 12-a high-voltage wire, 13-a grounding wire and 14-a box body outer cover.
Detailed Description
The invention will be further illustrated with reference to specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Example 1
The discharge system comprises n electrodes, n discharge needles, a high-voltage wire, a grounding wire, a direct-current high-voltage power supply, a needle dial and an electrode tray.
Wherein, the electrode is a hollow cylindrical structure, and the perspective view thereof is shown in fig. 4; the cross section of the hollow part 1 of the electrode is in a four-leaf shape with an axisymmetric shape, the four-leaf shape consists of a cross shape and four cones, the four cones are positioned at the four tail ends of the cross shape, the sharp ends of the cones are connected with the cross shape, the round thick end is far away from the cross shape, and the center of the cross shape is positioned on the central shaft of the electrode; n-1 discharge needles are uniformly distributed around the circumference of 1 discharge needle, and the center distance between two adjacent discharge needles is more than 2 cm; the n electrodes are positioned under the n discharge needles and correspond to the n discharge needles one by one, and the central axis of each discharge needle is superposed with the central axis of the corresponding electrode; the direct-current high-voltage power supply is used for providing high-voltage electricity required by the electrostatic atomization process; the direct-current high-voltage power supply is connected with all the discharge needles through high-voltage wires, and all the electrodes are grounded through a grounding wire; the n discharge needles are vertically inserted on the needle dial, the plan view of the needle dial and the discharge needles is shown in fig. 5, the n electrodes are fixed on the electrode tray, the positions of the electrode tray corresponding to the hollow parts of the electrodes are hollow, the plan view of the n electrodes and the electrode tray is shown in fig. 6, and the relative position relationship diagram of the discharge needles and the electrodes is shown in fig. 7.
The electric field distribution of the electrodes in the discharge system was simulated using the electrostatic module in the Comsol Multiphysics software, and the resulting electric field distribution diagram is shown in fig. 1.
Comparative example 1
A discharge system of a circular ring electrode, which is substantially the same as that of example 1, except that the electrodes in the discharge system are different, the electrode in comparative example 1 is a circular ring electrode, and the outer diameter dimension thereof is the same as that of the hollow cylindrical structure; as a result of testing the electric field distribution pattern by the same method as in example 1, as shown in fig. 2, it can be seen from comparison of example 1 with comparative example 1 that the distribution area of the electric field intensity in example 1 is larger than that in comparative example 1 because the field intensity of the circular ring type electrode is mainly concentrated in the inside of the circular ring, whereas the electrode according to the present invention has strong field intensity around the four conical and cross portions, thereby expanding the electric field distribution area.
Example 2
The nano-structure active water ion generating device comprises a discharge system, a liquid supply system and an auxiliary system, as shown in figure 3;
the discharge system was the discharge system in example 1;
the liquid supply system consists of a needle cylinder 2, a micro-injection pump 3 and a conduit 4, provides a stable and sufficient liquid source, and ensures that the discharge needle 6 can generate a sufficient amount of nano-structure active water ions; the needle cylinder 2 is used for containing liquid, is placed in the micro-injection pump 3 and is communicated with the n discharge needles 6 through the guide pipe 4, and the micro-injection pump 3 provides stable linear thrust to ensure that the discharge needles 6 connected with the needle cylinder 2 can keep stable Taylor cone liquid;
the auxiliary system consists of an object stage 10, 2 lifting rods 11 and a box body outer cover 14; the object stage 10 is positioned below the electrode tray 9, and the needle plate 7, the electrode tray 9 and the object stage 10 are simultaneously and vertically connected with 2 lifting rods 11; the discharge needle 6, the needle dial 7, the electrode 8, the electrode tray 9, the objective table 10 and the lifting rod 11 are placed inside the box body outer cover 14, the needle cylinder 2, the micro-injection pump 3 and the direct-current high-voltage power supply 5 are placed outside the box body outer cover 14, and the guide pipe 4, the high-voltage wire 12 and the grounding wire 13 penetrate through the box body outer cover 14;
the nano-structure active water ion generating device is used for producing nano-structure active water ions, and can efficiently and stably produce the nano-structure active water ions meeting the requirements.
Example 3
A wool fabric anti-pilling modification method comprises the steps of laying the wool fabric on an objective table of a nano-structure active water ion generation device in an embodiment 2, adding 10mL of high-purity water with the resistivity of 18M omega cm into a needle cylinder, starting a liquid supply system and a discharge system, and keeping for a period of time to obtain the wool fabric with anti-pilling modification, wherein the range of the distance between a discharge needle and an electrode is 0.5-2 cm, the range of the direct-current voltage of a direct-current high-voltage power supply is-3.8-7 kV, the range of the infusion speed of a micro-injection pump is 0.9-10 mu L/min, and the range of the distance between an electrode tray and the objective table is 0-10 cm.
The specific treatment steps are as follows:
(1) 100% merino wool weft plain knit fabric (fiber average diameter 19.5 μm, yarn count 2/30Nm) was cut into 15 square samples of 4cm × 4cm size for use, and 1 laboratory syringe 1 and 100mL laboratory industrial distilled water were prepared;
(2) placing 15 merino wool weft-knitted plain fabric and a nano-structure active water ion generating device (the number of discharge needles n is 9) in a standard environment (the temperature is 20 +/-2 ℃, and the relative humidity is 65 +/-2%) for balancing for 24 hours;
(3) taking 3 merino wool weft-knitted plain fabric as a control group A;
laying 3 merino wool weft-knitted plain knitted fabrics on an objective table of the nano-structure active water ion generating device, setting the distance between a discharge needle and an electrode to be 0.5cm, setting the direct-current voltage of a direct-current high-voltage power supply to be-5 kV, setting the infusion speed of a micro-injection pump to be 5.4 mu L/min, starting a liquid supply system and a discharge system after the distance between an electrode tray and the objective table is 0.5cm, keeping for 1h, and taking the 3 merino wool weft-knitted plain knitted fabrics after treatment as an experimental group B;
laying 3 merino wool weft-knitted plain knitted fabrics on an objective table of the nano-structure active water ion generating device, setting the distance between a discharge needle and an electrode to be 0.5cm, setting the direct-current voltage of a direct-current high-voltage power supply to be-5 kV, setting the infusion speed of a micro-injection pump to be 5.4 mu L/min, starting a liquid supply system and a discharge system after the distance between an electrode tray and the objective table is 0.5cm, keeping for 3h, and taking the 3 treated merino wool weft-knitted plain knitted fabrics as an experimental group C;
laying 3 merino wool weft-knitted plain knitted fabrics on an objective table of the nano-structure active water ion generating device, setting the distance between a discharge needle and an electrode to be 0.5cm, setting the direct-current voltage of a direct-current high-voltage power supply to be-5 kV, setting the infusion speed of a micro-injection pump to be 5.4 mu L/min, starting a liquid supply system and a discharge system after the distance between an electrode tray and the objective table is 0.5cm, keeping for 5h, and taking the processed 3 merino wool weft-knitted plain knitted fabrics as an experimental group D;
laying 3 merino wool weft-knitted plain knitted fabrics on an objective table of the nano-structure active water ion generating device, setting the distance between a discharge needle and an electrode to be 0.5cm, setting the direct-current voltage of a direct-current high-voltage power supply to be-5 kV, setting the infusion speed of a micro-injection pump to be 5.4 mu L/min, starting a liquid supply system and a discharge system after the distance between an electrode tray and the objective table is 0.5cm, keeping for 7h, and taking the processed 3 merino wool weft-knitted plain knitted fabrics as an experimental group E;
(4) test evaluation, the treated merino wool weft-knitted plain fabric is subjected to fuzzing and pilling resistance test, and the reference standard GB/T4802.2-2008' determination of fuzzing and pilling performance of textile fabric part 2: modified martindale method, in which a fabric flat grinder model YG401C (martindale machine) was used to perform fuzzing and pilling treatment on the sample, the number of rubs was set to 1000, and the evaluation method was: the treated samples were placed in a standard light source box for subjective evaluation, 5 experts were invited to score, and the rating evaluation was according to the following table 1.
TABLE 1 evaluation rating description of pilling resistance of fabrics
| Number of | State description | |
| 5 | Without |
|
| 4 | Slight fuzzing (or) slight pilling of the |
|
| 3 | Surface moderate fuzz (or) moderate pilling, with different size and density of balls covering part of the surface of the |
|
| 2 | The surface had obvious fuzzing (or) pilling, and the balls of different sizes and densities covered most of the surface of the |
|
| 1 | The surface had severe fuzzing (or) pilling, and the balls of different sizes and densities covered the entire surface of the test specimen |
Note: if the pilling event is between two levels, half levels are recorded, such as: "3.5".
The evaluation results of the wool fabric subjected to the nano-structure active water ion treatment and the untreated wool fabric for resisting pilling are shown in fig. 8, and it can be found from the results that the wool fabric subjected to the nano-structure active water ion treatment has higher anti-pilling performance than the untreated wool, and the pilling performance of the wool fabric is improved more obviously along with the increase of the treatment time, and can be improved by nearly 2 grades at most. The nano-structure active water ion device can be used for anti-pilling treatment of fabrics and has a good effect. This is because the epidermal layer structure of wool fibre can be decomposed to the free radical composition in the active water ion of nanometer structure for the fibre surface is more smooth gentle and agreeable, and simultaneously, nanometer water particle in the active water ion of nanometer structure is attached to the fibre surface, also can reduce the coefficient of friction on fibre surface, consequently makes fibre activity more nimble in the fabric, is difficult for taking place the phenomenon of tangle, thereby has slowed down the process of the pilling of fabric, has promoted its anti-pilling's performance.
Claims (10)
1. A method for post-treating textile material, characterized by: continuously spraying the nano-structure active water ions on the surface of the textile material to improve the performance of the textile material.
2. A method of finishing a textile material as claimed in claim 1, wherein the textile material is a wool fabric and the property is pilling resistance.
3. A method of post-treatment of textile material according to claim 2, wherein the nano-structured active water ions are provided by a nano-structured active water ion generating means.
4. A method as claimed in claim 3, wherein the nanostructure active water ion generating means comprises a discharge system comprising electrodes having a hollow cylindrical configuration, the cross-section of the hollow portion has a four-lobed shape, the four-lobed shape is axisymmetric and comprises a cross shape and four cones, the four cones are located at four ends of the cross shape, the sharp ends of the cones are connected to the cross shape, the thick ends of the circles are away from the cross shape, and the center of the cross shape is located on the central axis of the electrodes.
5. The post-treatment method of the textile material as claimed in claim 4, wherein the number of the electrodes is n, the discharge system further comprises n discharge needles, a high voltage wire, a grounding wire and a direct current high voltage power supply;
n-1 discharge needles are uniformly distributed around the circumference of 1 discharge needle, and the center distance between two adjacent discharge needles is more than 2 cm;
the n electrodes are positioned under the n discharge needles and correspond to the n discharge needles one by one, and the central axis of each discharge needle is superposed with the central axis of the corresponding electrode;
the direct-current high-voltage power supply is connected with all the discharge needles through high-voltage wires, and all the electrodes are grounded through a grounding wire.
6. The method of claim 5, wherein the discharge system further comprises a needle plate on which n discharge needles are vertically inserted and an electrode tray on which n electrodes are fixed, and the electrode tray is hollow in a position corresponding to the hollow part of the electrode.
7. The method of claim 6, wherein the nanostructure active water ion generating device further comprises a liquid supply system, the liquid supply system mainly comprises a syringe, a micro-injection pump and a conduit, the syringe is used for containing liquid, is placed in the micro-injection pump and is communicated with the n discharge needles through the conduit.
8. The post-treatment method of the textile material as claimed in claim 7, wherein the nano-structure active water ion generating device further comprises an auxiliary system, the auxiliary system mainly comprises an object stage, 2 lifting rods and a box body outer cover;
the objective table is positioned below the electrode tray, and the needle plate, the electrode tray and the objective table are simultaneously and vertically connected with the 2 lifting rods;
the discharge needle, the needle disc, the electrode tray, the objective table and the lifting rod are arranged inside the box body outer cover, the needle cylinder, the micro-injection pump and the direct-current high-voltage power supply are arranged outside the box body outer cover, and the guide pipe, the high-voltage wire and the grounding wire penetrate through the box body outer cover.
9. The method for post-treating textile materials according to claim 8, characterized in that the specific process is as follows: and laying the wool fabric on an objective table of the nano-structure active water ion generating device, adding high-purity water into the needle cylinder, starting the liquid supply system and the discharge system, and keeping for a period of time to obtain the anti-pilling modified wool fabric.
10. The post-treatment method of the textile material according to claim 9, wherein the resistivity of the high-purity water is 18M Ω -cm, the distance between the discharge needle and the electrode is 0.5-2 cm, the DC voltage of the DC high-voltage power supply is-3.8-7 kV, the infusion speed of the micro-injection pump is 0.9-10 μ L/min, the distance between the electrode tray and the stage is 0-10 cm, and the period of time is more than or equal to 30 min.
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