CN101124361B - Base fabric for burnt-out lace and process for production thereof - Google Patents

Base fabric for burnt-out lace and process for production thereof Download PDF

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Publication number
CN101124361B
CN101124361B CN2006800053943A CN200680005394A CN101124361B CN 101124361 B CN101124361 B CN 101124361B CN 2006800053943 A CN2006800053943 A CN 2006800053943A CN 200680005394 A CN200680005394 A CN 200680005394A CN 101124361 B CN101124361 B CN 101124361B
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nonwoven fabric
water
embroidery
fibrid
aqueous solution
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CN101124361A (en
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水城俊
小林悟
泷岛启介
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Kuraray Co Ltd
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Kuraray Co Ltd
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/64—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • D04H1/68—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions the bonding agent being applied in the form of foam
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06Q—DECORATING TEXTILES
    • D06Q1/00—Decorating textiles
    • D06Q1/005—Producing embroidered textiles by chemical means; Transferring embroidered products to textiles
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06Q—DECORATING TEXTILES
    • D06Q1/00—Decorating textiles
    • D06Q1/02—Producing patterns by locally destroying or modifying the fibres of a web by chemical actions, e.g. making translucent

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Nonwoven Fabrics (AREA)
  • Automatic Embroidering For Embroidered Or Tufted Products (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Decoration Of Textiles (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

A base fabric for chemical lace which is composed of a random-web nonwoven fabric made of a water-soluble polyvinyl alcohol fiber and dyed stitch yarn and which satisfies the following requirements: (1) the binder to be added to the nonwoven fabric is a foam made from an aqueous solution containing a polyvinyl alcohol resin and the quantity of the binder adhering to the nonwoven fabric is 2 to 20% by mass based on the mass of the whole nonwoven fabric, (2) the widthwise strength of the nonwoven fabric at 10% modulus is 15-80 N/50mm width, and (3) the bending resistance of the nonwoven fabricis 40 to 150 mm. The base fabric is inexpensive and excellent in softness, workability, and dimensional stability, little suffers from omission or deviation in embroidered patterns, and permits low dissolution temperature.

Description

Base fabric for burnt-out lace and manufacture method thereof
Technical field
The present invention relates to soft, DIMENSIONAL STABILITY is high, and on the low basis of solution temperature, cheap base fabric for burnt-out lace.
Background technology
In the past, the base cloth of using as burnt-out lace mainly used the cloth that spins that long fiber by water-soluble poval (below be called PVA) class constitutes.This advantage of spinning cloth is the DIMENSIONAL STABILITY height, is difficult to produce the dislocation of embroidery pattern, and the dissolving of base cloth is removed and can be carried out under lower temperature, otherwise, because the price height of long fiber own, and need special weaving process, so there is the high problem of price.In addition, because be to spin cloth,, be easy to generate the shortcoming of broken needle during embroidery so also exist cloth hard.
In recent years, along with the increase of demand that with the Asia is the various countries at center, the market stable ground sustainable growth of burnt-out lace.The tendency of this demand shifts to the coloury embroidery silk that dyes earlier that dyes artificial fibre earlier, dyes polyester etc. earlier from being main body with after stain embroidery silk.Wherein, that has used DISPERSE DYES dyes polyester embroidery silk earlier owing to can use recycled polyester, so favourable to environment, in addition, owing to gloss, durability, have excellent washing resistance, therefore, its use has the tendency of increase.
Can predict, from now on under smaller or equal to 80 ℃ temperature, dissolving removing from the gamut that dyes polyester embroidery silk earlier as preventing, and cheapness and good work, softness and DIMENSIONAL STABILITY height, the demand of the base cloth that embroidery pattern is difficult to misplace improves gradually.
As the water-soluble base cloth that spins cloth as described above, that substitute high price, soluble non-woven fabrics is arranged, up to now, carried out using the various experiments of this nonwoven fabric.For example, proposed water solubility temperature smaller or equal to 10 ℃, the nonwoven fabric that is made of the PVA fibrid with heat-blocking is (for example, with reference to patent documentation 1.)。But so special fiber is because productivity is low, so the price height.In addition, though if increase the embossing bond area rate of nonwoven fabric, the DIMENSIONAL STABILITY in the time of then can guaranteeing to embroider, on the contrary pliability can be damaged, when embroidery, cause broken needle.Therefore, though by than higher weight per unit area, the DIMENSIONAL STABILITY in the time of can guaranteeing to embroider is difficult to provide the base cloth of excellent quality.
In addition, the embossing nonwoven fabric of PVA class spunbond net has been proposed (for example, with reference to patent documentation 2.)。Though this manufacture method is fit to produce in enormous quantities,, for the stability of spinning, the essential degree of polymerization that reduces material resin in addition, is difficult to fully heat-treat the directional crystallization of generation, is difficult to obtain the good base cloth of DIMENSIONAL STABILITY.
Have again, also proposed by water soluble adhesive etc., omnidirectional net nonwoven fabric and cloth-like thing are engaged the material that forms (for example, with reference to patent documentation 3.)。But, in order to obtain such cloth-like thing, need to introduce special equipment, be difficult to the base cloth that provides general and cheap.
On the other hand, as the good base cloth of DIMENSIONAL STABILITY, found a lot by containing the binder aqueous solution of water-soluble resin, will be by the bonding base cloth that forms of the omnidirectional net that the PVA fibrid constitutes, for example, proposed by this binder aqueous solution, with the bonding nonwoven fabric that forms of the long stapled net of PVA class (for example, with reference to patent documentation 4.)。But, make nonwoven fabric for the long fiber that uses the PVA class, must make manufacturing process discontinuous, be difficult to supply with general and cheap base cloth.Have again,, then have the problem that increases of shrinking if heat-treat to carrying out bonding base cloth by the binder aqueous solution that contains water-soluble resin.
Method as beyond above-mentioned has proposed binder aqueous solution to be sprayed to or to contain the fluid complexing sheet that is dipped in the PVA fibrid, carries out handling (for example, with reference to patent documentation 5 to the tensioning of width when drying.)。But, in the method, because the essential many adhesive resins of adhesion amount, so be difficult to satisfy simultaneously DIMENSIONAL STABILITY and pliability.Have again, if be applied in the PVA fibrid of dissolution in low temperature type, cause that then the swelling that causes because of water shrinks, be difficult to obtain the base cloth of fine texture, the PVA fibrid of described dissolution in low temperature type can use cause gamut easily dye polyester embroidery silk earlier.
Patent documentation 1: the spy opens flat 11-217759 communique
Patent documentation 2: the spy opens the 2001-279568 communique
Patent documentation 3: the spy opens the 2003-129383 communique
Patent documentation 4: the spy opens flat 7-054257 communique
Patent documentation 5: the spy opens flat 1-018182 communique
As mentioned above, many to the practicability obstacle when obtaining the base fabric for burnt-out lace soft, that DIMENSIONAL STABILITY is high and solution temperature is low, cheap, wish that exploitation has solved the base fabric for burnt-out lace of these each problems.
The invention provides a kind of softness, good work, DIMENSIONAL STABILITY height, the overlap that is difficult to produce embroidery pattern, dislocation, low, cheap base fabric for burnt-out lace and the manufacture method thereof of solution temperature.
Summary of the invention
In order to realize above-mentioned problem, the result that present inventor etc. carefully study is, discovery will make contain the resinoid aqueous solution of PVA become foamed adhesive (below, the situation that is called foamed binder aqueous solution is simply also arranged) contain and be immersed in the omnidirectional net that constitutes by the water-solubility PVA fibrid, carry out drying, with this, can access cheapness, softness, DIMENSIONAL STABILITY height, base fabric for burnt-out lace that solution temperature is low.This processing mode operation of additional this binder aqueous solution is simple, has versatility, compare with the mode of in the past spraying, impregnation etc., owing to can reduce the attachment of moisture amount, so it is bad to adjust the quality that causes because of swelling, contraction, also can save the energy that is used for drying, therefore, consistent with problem of the present invention.Have again, also this processing mode of finding additional foamed adhesive is compared with mode in the past, there is following advantage, and realized the present invention, described advantage is, because the adhesive resin in the binder aqueous solution concentrates on the interlacing portion of fiber,, can not damage the pliability of base cloth so can obtain high DIMENSIONAL STABILITY with the adhesion amount of measuring fewer adhesive resin.
That is, the present invention is the base fabric for burnt-out lace that the embroidery silk is dyed in a kind of use earlier, it is characterized in that weight per unit area is 15-50g/m 2The omnidirectional net nonwoven fabric of water-soluble poval fibrid satisfy the full terms of following (1) to (3), and, the water solubility temperature that constitutes the water-soluble poval fibrid of nonwoven fabric is 50-80 ℃, in the water solubility temperature that makes the water-soluble ethylene alcohol fibrid that constitutes nonwoven fabric is A ℃, when making the water solubility temperature of the omnidirectional net nonwoven fabric of polyvinyl alcohol fibrid be B ℃, B-A≤5 ℃
(1) attached to the adhesive on the nonwoven fabric be make comprise polyvinyl alcohol resin and have the foaming penetrant action interfacial agent become foamed adhesive at the interior aqueous solution, and, by carrying out dry heat treatment in impregnation, after additional, when foamed binder aqueous solution froth breaking, make adhesive focus on the interlacing portion of fiber, and this adhesive is 3-17 quality % with respect to the adhesion amount of whole non-woven fabrics quality
(2) the 10% horizontal modulus intensity of nonwoven fabric is the 15-80N/50mm width,
(3) the firm softness of nonwoven fabric is 40-150mm.
In addition, the present invention is the manufacture method that the base fabric for burnt-out lace of embroidery silk is dyed in a kind of use earlier, it is characterized in that, make the interfacial agent that comprises polyvinyl alcohol resin and have a foaming penetrant action interior become on the omnidirectional net nonwoven fabric that the foamed aqueous solution is attached to the water-soluble poval fibrid after, carry out dry heat treatment.
The invention effect
According to the present invention, can provide a kind of softness, good work, DIMENSIONAL STABILITY height, the overlap that is difficult to produce embroidery pattern, dislocation, low, cheap base fabric for burnt-out lace and the manufacture method thereof of solution temperature.
The specific embodiment
In the present invention, as the resin that constitutes fiber, need to use water miscible PVA base polymer.As the water-solubility PVA base polymer that uses in the present invention, unit beyond vinyl alcohol units is constituted, is under the situation of so-called local saponification PVA by the vinyl acetate unit, in order to obtain good water solubility temperature 50-80 of the present invention ℃, saponification degree that preferably should part saponification PVA is 95-99.95 mole %.If surpass 99.95 moles of %, then when xeothermic extensions, crystallization makes progress during xeothermic contraction, exists water solubility temperature to surpass 80 ℃ situation.
Under the situation of the so-called sex change PVA of the unit beyond use contains vinyl alcohol units and vinyl acetate unit, though have in the sex change unit is that crystallization hinders under the situation of the big unit of effect, even the sex change unit is the sex change PVA base polymer of 0.5 mole of % degree, also can be applied in situation of the present invention well, but generally preferably using the sex change unit is sex change PVA base polymer more than or equal to 1 mole of %.For under the situation of sex change PVA base polymer, compare with unmodified PVA base polymer, even improve saponification degree,, and can become low water solubility temperature also because its crystallization hinders effect.On the other hand, if the sex change unit surpasses 20 moles of %, then crystallinity obviously reduces, and not only produces fibrous physical property and reduces, and its spinnability also reduces, and is therefore bad.
Monomer as forming the sex change unit can list ethene, allyl alcohol, itaconic acid, acrylic acid, vinylamine, maleic anhydride and ring-opening product thereof, contain the such carbon number of vinyl compound, the new vinyl acetate acid of sulfonic acid more than or equal to 4 fatty acid vinyl ester, vinyl pyrrolidone and with the compound after part or all neutralization of above-mentioned ionic group etc.The introductory technique of sex change unit is based on the method for combined polymerization, also can be based on post-reacted introduction method.In addition, the distribution in the polymer chain of sex change unit can be irregular, also can be block, can also be to engage shape, is not particularly limited.In addition, though the degree of polymerization of this polymer is not subjected to special qualification, from the mechanical performance of fiber, the viewpoint of versatility, good is that the degree of polymerization is more than or equal to 1000, particularly more than or equal to 1500, from the viewpoint of the spinnability of fiber, preferably smaller or equal to 4000.
The manufacture method of PVA fibrid of the present invention then, is described.
In the present invention, use the spinning solution that water miscible PVA base polymer is dissolved into behind water or the organic solvent to make fiber, in view of the above, can obtain the fiber of mechanical performance and water-soluble excellence effectively.Certainly, in the scope of not damaging effect of the present invention, in spinning solution, also can contain above-mentioned additive, polymer in addition.As the solvent that constitutes spinning solution, though for example can enumerate the polarity solvent of water outlet, dimethyl sulfoxide (DMSO) (DMSO), dimethylacetylamide, dimethyl formamide, N-Methyl pyrrolidone etc., the mixture of the swellability slaine of the multivalence ethanol class of glycerol, ethylene glycol etc. and these solvents and thiocyanates, lithium chloride, calcium chloride, zinc chloride etc., also has these solvents mixture to each other, and the mixture of these solvents and water etc., but wherein water, DMSO are the most suitable at aspects such as dissolution in low temperature, hypotoxicity, low-corrosiveness.
Though the polymer concentration in the spinning solution is different because of composition, the degree of polymerization, solvent,, be preferably in the scope of 8-40 quality %.Liquid temperature during the discharge of spinning solution be preferably in spinning solution can saponification or can not decompose, painted scope, specifically, be scope at 50-150 ℃.
As long as this spinning solution is discharged from nozzle, carry out the wet type spinning or the dry-and wet-type spinning gets final product, as long as be discharged to respect to the PVA polymer have curing can consolidation liquid in.Particularly discharging from a plurality of holes under the situation of spinning solutions, the deadlocked each other viewpoint of fiber when preventing to discharge adopts the wet type spin processes to be better than the dry-and wet-type spin processes.In addition, the wet type spin processes is meant the method that spinning solution directly is discharged to fixation bath from spinning nozzle, and in addition, the dry-and wet-type spin processes is meant temporarily spinning solution is discharged to air or the inert gas from spinning nozzle, imports to the method for fixation bath then.
Be under the situation of organic solvent and at the stoste solvent under the situation of water, the fixation bath difference.Under for the situation of stoste of having used organic solvent, viewpoint from fibre strength of obtaining etc., preferably by solidifying the mixed liquor that solvent and stoste solvent constitute, as solidifying solvent, have with respect to methyl alcohol, the alcohols of ethanol etc. or acetone, the PVA polymer of the ketone of methyl ethyl ketone etc. etc. has the organic solvent of curing energy, the organic solvent that preferably constitutes particularly by methyl alcohol and DMSO, and, viewpoint from spinning process and solvent recovery, the mass ratio of the curing solvent/stoste solvent in the fixation bath is 25/75-95/5, and the mixed liquor of good is 55/45-80/20 is best.In addition, the temperature of fixation bath particularly for uniform cooling gelization, preferably smaller or equal to 20 ℃, is more preferably smaller or equal to 15 ℃ preferably smaller or equal to 30 ℃.
In addition, be under the situation of the aqueous solution at spinning solution, as the curing solvent that constitutes consolidation liquid, what can list saltcake, sodium chloride, sodium carbonate etc. rightly has the aqueous solution of the inorganic salts of curing energy with respect to the PVA base polymer.This fixation bath certainly is acid, alkaline any one.
Then, from the strand that is cured, extract the solvent of removing spinning solution.Aspect deadlocked between the fiber when suppressing dry, have again, aspect the intensity that improves resulting fiber, be preferably in when extracting, make that strand is wet to be extended.As wet extension ratio, preferably 1.5-6 doubly.Extract normally by passing a plurality of extractions and bathe and carry out.Bathe as extracting, use the mixed liquor of independent curing solvent or curing solvent and stoste solvent, in addition, extract the temperature of bathing and adopt 0-50 ℃ scope usually.
Then, as long as required, additional finish etc. also carry out drying and get final product.Baking temperature particularly at the dry initial stage, carries out drying with the low temperature smaller or equal to 160 ℃ preferably smaller or equal to 210 ℃, and in the second half of drying, the multilevel drying that carries out drying with high temperature is better.Have again, carry out xeothermic extension and carry out xeothermic contraction as required, make PVA strand orientation, crystallization, intensity, resistance to water, the heat resistance of fiber are adjusted.In order to improve the mechanical performance of fiber, be preferably under 150-250 ℃ the temperature conditions, make full extension ratio more than or equal to three times, particularly more than or equal to five times xeothermic extension.By making full extension ratio more than or equal to three times, can access the fiber that intensity is 1.5-4.0cN/dtex, have again, by making full extension ratio, can access the fiber of intensity more than or equal to 4cN/dtex more than or equal to five times.In addition, described in the present invention full extension ratio is the long-pending represented multiplying power by damp and hot extension ratio and xeothermic extension ratio.
Have, as required, additional finish etc. is crispaturaed again.As the addition method of crispaturaing, though can use known method in the past, but, suitable method is in order to crispatura fully to the PVA fibrid is additional, to carry out xeothermic The pre-heat treatment in advance, import to mechanical crimper and additional crispaturaing, then, be cooled to not enough glass transition temperature, keep crispaturaing form securely.
Preferably the fiber number of the fiber of making so of the present invention is 0.5-5dtex.When not enough 0.5dtex, fibre strength is not enough, in the damage increase of embroidery hour hands.If surpassed 5dtex, then the nonwoven fabric quality is bad, causes overlap, the dislocation of embroidery pattern, is difficult to carry out good embroidery.Be more preferably 1-3dtex.
The water solubility temperature of the PVA fibrid that preferably uses in the present invention is 50-80 ℃.Under the situation of 50 ℃ of water solubility temperature less thaies, cause swelling, contraction that water causes easily, the contraction of the drying process behind the additional resin binder aqueous solution increases, and can not obtain nonwoven fabric of good quality.Though the contraction of this drying can be carried out whole inhibition by using needle stenter, interlayer net, is difficult to prevent local quality inequality.In addition,, then be difficult to the base cloth of dissolving removing fully after embroidery if the water solubility temperature of fiber surpasses 80 ℃, bad.Be more preferably 55-75 ℃.
The manufacture method of the nonwoven fabric that is made of PVA fibrid of the present invention then, is described.
As omnidirectional net nonwoven fabric of the present invention, preferably constitute nonwoven fabric fiber be orientated irregular dry type nonwoven fabric, can use the net of making by known combing method and air-flow method etc. in the past.In addition, as making fiber alignment is random method, twine method or right-angled intersection method etc. though can use known in the past intersection, but under the situation that is the burnt-out lace base cloth, particularly because when embroidery, apply to horizontal tension force, so for overlap, the dislocation that suppresses embroidery pattern, suitable is that fiber alignment is random.
Preferably the weight per unit area of making nonwoven fabric of the present invention by above-mentioned manufacture method is 15-50g/m 2If the not enough 15g/m of weight per unit area 2, then the formation radical of fiber reduces, and quality is inhomogeneous, is easy to generate overlap, the dislocation of embroidery pattern.In addition, because the undercapacity of base cloth own, so the operation trafficability characteristic during embroidery is extremely low.If weight per unit area surpasses 50g/m 2, then not only price improves, and can damage the pliability of nonwoven fabric, therefore, in the base cloth operation of carrying out being undertaken connected to one another, when embroidery machine stretches the operation of base cloth by Sewing machines, the operation reduction.In addition because the quality of the base cloth that dissolving is removed increases, so dissolving, draining processing cost improve, bad.Be more preferably and be 20-40g/m 2
In the present invention, make foamed adhesive impregnation append to the nonwoven fabric that obtains by above-mentioned manufacture method, carry out dry heat treatment then, in view of the above, obtain the good nonwoven fabric of softness and DIMENSIONAL STABILITY.
Have again, dye the embroidery silk earlier,, can access the overlap of embroidery pattern, the base fabric for burnt-out lace that dislocation is few when the nonwoven fabric of above-mentioned foamed adhesive treatment is embroidered in use.
Here, the kind of dying the embroidery silk earlier is not particularly limited, but is fit to use polyesters, the embroidery silk of artificial fibre class etc.
As attached to the adhesive on the nonwoven fabric of the present invention, make and contain the resinoid aqueous solution of PVA and become foamed adhesive.The foamed binder aqueous solution of above-mentioned composition can be modulated as follows, for example, stir in dissolving machine in one side, one side is dissolved in water with the PVA resinoid, behind the PVA aqueous solution of modulation specifications concentration, as required, add auxiliary agent and penetrant, under the state that stirs, air is blown into the aqueous solution in the dissolving machine, make it foaming, modulate.The addition method of the foamed binder aqueous solution after the modulation is, for example, make foamed binder aqueous solution flow under the nozzle by combing method make online, or the roller that is attached with foamed binder aqueous solution on net and the surface is contacted, carry out impregnation, add.In the present invention, owing to carry out dry heat treatment in impregnation, after additional, so when foamed binder aqueous solution froth breaking, adhesive resin in the binder aqueous solution focuses on the interlacing portion of fiber easily, compare with in the past spray-on process, impregnation method, with more a spot of resin adhesion amount, can obtain equal bonding force.Therefore, compare attached to the previous methods beyond the interlacing portion of fiber, have the pliability of guaranteeing nonwoven fabric easily with resin, that is, and the advantage of firm softness described later.In addition, because can reduce, be used for the dry energy so can save attached to the amount of moisture on the nonwoven fabric.Have again, under situation about using easily,, therefore suppressed the swelling contraction owing to can reduce the adhesion amount of moisture because of the PVA fibrid of the dissolution in low temperature type of water swelling, contraction, even without the special device of needle stenter, interlayer net etc., also can obtain the base cloth of fine texture.
Base cloth flatness degree in addition, shrinks, can not damage the strength and elongation rerum natura of the fiber that constitutes base cloth, even because also can access high strength, so obtain 10% modulus intensity described later easily by the swelling that suppresses base cloth.
The adhesion amount of foamed binder aqueous solution of the present invention need be 2-20 quality % with respect to whole non-woven fabrics quality.Under the situation of less than 2 quality %,, can not obtain the needed intensity of base cloth with non-woven cementation power deficiency.If surpass 20 quality %, the interlacing portion amount of resin in addition that then is attached to fiber increases, and has damaged the pliability of nonwoven fabric, nonwoven fabric intensity also culminates simultaneously, in addition, because adhesive resin concentration rises, so cause the coiling fault that increases the pair roller that produces etc. because of viscosity easily.That good is 3-17 quality %, is more preferably 4-15 quality %.In addition, be preferably in contain in the binder aqueous solution have the foaming penetrant action interfacial agent.As interfacial agent, can list alkyl ether sulfonic acid class, DBSA class, castor oil hydrosulphate etc.In addition, outside above-mentioned interfacial agent, also can add softener, pH adjustment agent etc.
Then, carry out based on xeothermic dried.Though to being not particularly limited based on xeothermic dried condition, can the heated-air drying of listing, drum dried etc. still, are preferably in more than or equal to carrying out in 100 ℃ the hot-blast stove.
By carrying out such dry heat treatment, can access that softness and DIMENSIONAL STABILITY are good, bright in luster, the base fabric for burnt-out lace of embroidery pattern with feeling of high class.
In the desired quality of base fabric for burnt-out lace, most important one is exactly 10% horizontal modulus intensity.In general, clip base cloth though embroidery is one side by clip etc., count % at horizontal spreading, one side is carried out, this moment base cloth desired is not fracture strength, but base cloth does not extend in the embroidery way,, requires horizontal modulus intensity height that is.In nonwoven fabric of the present invention, 10% horizontal modulus intensity must be the 15-80N/50mm width.Under the low situation of 10% horizontal modulus strength ratio 15N/50mm width, the tension force during owing to embroidery causes that base cloth extends, and has encouraged overlap, the dislocation of embroidery pattern, owing to can not obtain exquisite embroidery, so bad.In addition, when 10% horizontal modulus intensity surpasses the 80N/50mm width, though there have not been the overlap of embroidery pattern, the problem of dislocation,, the forfeiture of the flexibility of nonwoven fabric, base cloth selvage guide that is undertaken by Sewing machines and base cloth each other is extremely low to the operating efficiency of embroidery board stretching, extension etc.The good scope of 10% horizontal modulus intensity is the 20-70N/50mm width, and better scope is the 25-60N/50mm width.
Though the 10% modulus intensity longitudinally of nonwoven fabric does not have horizontal important, best 10% modulus intensity is more than or equal to the 10N/50mm width.If 10% modulus intensity is low excessively longitudinally, then when stretching, embroidery causes vertically disconnected cloth easily, perhaps in the shirred operation after embroidery, cause fault easily.
Have, the firm softness of nonwoven fabric of the present invention must be 40-150mm again.During deficiency 40mm, base cloth is too soft, causes overlap, the dislocation of embroidery pattern during embroidery easily.In addition, if surpass 150mm, then base cloth is hard, not only require the operation of base cloth softness, for example bonding by Sewing machines of base cloth and tulle, the base cloth selvage guide by Sewing machines or base cloth each other obviously reduce to the operation of the stretching, extension of embroidery machine etc., and, reel material after embroidery is easy to generate gauffer when reeling, the continuous supply difficulty of reel material.That the firm softness of nonwoven fabric is good is 50-140mm, is more preferably 60-130mm.In addition, the firm softness of nonwoven fabric is measured by method described later.
In the desired quality of base fabric for burnt-out lace, with one of important side by side requirement of horizontal 10% modulus intensity be the water solubility temperature of nonwoven fabric.In general, the water solubility temperature of nonwoven fabric is low more, and therefore the coming off, adhere to of dyestuff in the time of preventing the base cloth after embroidery is removed in dissolving more, using under the situation of dying the embroidery silk earlier of artificial fibre, polyester fiber etc., and it is most important condition that base cloth is selected.Specifically, be A ℃ in the water solubility temperature of employed PVA fibrid, the water solubility temperature of using the resulting nonwoven fabric of this PVA fibrid is during as B ℃, and B-A≤5 ℃ are for well, are more preferably B-A≤4 ℃, best is B-A≤2 ℃.In the present invention, the resinoid aqueous solution of water-solubility PVA by will foaming appends to nonwoven fabric as adhesive, can make B-A≤5 ℃.Because B-A≤5 ℃, can seek the reducing of energy in dissolution process, and then, can obtain soft base fabric for burnt-out lace easily.Surpass under 5 ℃ the situation at B-A, when the base cloth that dissolves after removing is embroidered, exist to produce the before possibility that comes off and adhere to again of embroidering of dying of dyestuff.Particularly spray-on process in the past, impregnation method have produced the before embroidery silk that dyes of dyestuff and come off, adhere to because B-A surpasses 5 ℃, and be therefore bad.
The present invention also provides a kind of manufacture method of base fabric for burnt-out lace of the invention described above in addition, the method is characterized in that, after the foamed aqueous solution that includes polyvinyl alcohol resin being attached to have the omnidirectional net nonwoven fabric of water-soluble poval fibrid and dying on the base cloth of embroidery silk earlier, carry out dry heat treatment.
Below, by embodiment, explain the present invention, but the present invention is not subjected to any restriction of present embodiment.In addition, in the present invention, the water solubility temperature of fiber or nonwoven fabric, 10% modulus intensity, firm softness, fibre strength are obtained according to following method.
(1) the water solubility temperature A of fiber (℃)
The water-soluble fibre that number 10mg is cut into length 1-2mm is put into 100cm 3Water in, after the stirring, heat up with the condition of 1 ℃/minute of programming rate, the temperature when fiber is dissolved is fully measured as water solubility temperature A.
(2) the water solubility temperature B of nonwoven fabric (℃)
Cut into the square non-woven fabric plate of 2cm or paper is put into 400cm with three 3Water in, with the condition of 1 ℃/minute of programming rate, mixing speed 280rpm, one side stirs one side and heats up, the temperature when fiber is dissolved is fully measured as water solubility temperature B.
(3) 10% modulus intensity (N/50mm width)
Nonwoven fabric is cut into 50mmX170mm respectively as sample in vertical, horizontal, at sample intermediate plate interval 100mm, intermediate plate width 25mm is under the condition that draw speed 100mm/ divides, use Instron stretching experiment machine to measure TENSILE STRENGTH, the intensity when reading 10% degree of stretching.
(4) firm softness (mm)
Measure with JIS cantilever 40.5 degree methods.
(5) fibre strength (cN/dtex)
With JIS L1013 is that standard is measured.
Embodiment 1
(1) PVA with the degree of polymerization 1750,99 moles of % of saponification degree puts in the dimethyl sulfoxide (DMSO) (DMSO), at 90 ℃, under 10 hours the nitrogen current, stirs and dissolves with 240rpm, obtains the spinning solution of polymer concentration 20 quality %.Making the spinning solution that the obtains spinning nozzle by hole count 15000 holes, aperture 0.16mm, is 70/30 at the mass ratio of methyl alcohol/DMSO, and temperature is to carry out the wet type spinning in 10 ℃ the fixation bath.Then, one side is extracted DMSO by the extract that is made of 25 ℃ methyl alcohol, and one side is carried out 3.0 times wet extension.Then, under nitrogen environment, with 150 ℃ of dryings 8 minutes, with 170 ℃, 2.0 times of xeothermic extensions, the cut-out of crispaturaing obtains fiber number 3.3 ten thousand dtex, intensity 7.2cN/dtex, water solubility temperature A and is 72 ℃ PVA class crinkled fibre.The performance of this fiber is illustrated in the table 1.
(2) make the omnidirectional net that constitutes by PVA fibrid 100 Quality Mgmt Dept that obtain, pass through hand mixer, make the aqueous solution foaming that constitutes by the PVA of the 5 quality % identical, as " BEROL-48 " (linear alkylbenzene sulfonate (LAS) class) of interfacial agent with fiber, contain and be dipped in this omnidirectional net, obtain nonwoven fabric with 70 ℃ of dryings.The performance of this nonwoven fabric is as shown in table 2, and just the softness softness is to 118mm, and good work has again, and 10% modulus intensity is up to 27.8 (N/50mm width).
(3) use market sale when dying nonwoven fabric that embroidery silk that polyester fiber constitutes obtains above-mentioned (2) earlier and embroider, do not have overlap, the dislocation of embroidery pattern, be suitable as base fabric for burnt-out lace.In addition, the water solubility temperature B of the base cloth after the embroidery is 74 ℃, B-A is 2.0 ℃, even be easy to generate in use under the situation of dying polyester embroidery silk earlier of market sale of gamut, after base cloth is removed in dissolving, can not produce dyestuff yet and come off, adhere to again, obtain the embroidery pattern distinctness, have the embroidery cloth of feeling of high class from the embroidery silk.
Embodiment 2
Except the PVA that uses the degree of polymerization 1750,96 moles of % of saponification degree, the method spinning with similarly to Example 1 obtains fiber number 8.5 ten thousand dtex, intensity 6.2cN/dtex, and water solubility temperature A is 65 ℃ a PVA class crinkled fibre.The performance of this fiber is illustrated in the table 1.In addition, use this fiber, under the condition identical, make nonwoven fabric with embodiment 1.Because the performance of this nonwoven fabric is as shown in table 2, just softness is soft to 86mm, good work, have again, 10% modulus intensity is up to 19.4 (N/50mm), thus using the embroidery silk identical with embodiment 1, when this nonwoven fabric is embroidered, do not have overlap, the dislocation of embroidery pattern, be suitable as base fabric for burnt-out lace.In addition, because the water solubility temperature B of the base cloth after the embroidery is 68.5 ℃, B-A is 3.5 ℃, so after base cloth is removed in dissolving, also can not produce dyestuff and come off, adhere to from the embroidery silk, obtains the embroidery pattern distinctness, has the embroidery cloth of feeling of high class.
Embodiment 3
(1) as fibrous raw material, the PVA of the degree of polymerization 1750,98.5 moles of % of saponification degree is put in the water, with 90 ℃, 10 hours, 240rpm stirred and dissolves, and obtained the spinning solution of polymer concentration 17 quality %.Make the spinning solution that obtains by hole count 15000 holes, the spinning nozzle of aperture 0.16mm spins in 40 ℃ the acid coagulating bath that is made of the saturated saltcake aqueous solution and solidifies.And then, after making the strand that obtains draw 3.0 times of damp and hot extensions with roller, wash, and then after with 130 ℃ of dryings, with 170 ℃ of xeothermic extensions of carrying out 2.0 times of extension ratios, the cut-out of crispaturaing obtains fiber number 3.3 ten thousand dtex, intensity 3.1cN/dtex, and water solubility temperature A is 76 ℃ a PVA class crinkled fibre.The performance of this fiber is illustrated in the table 1.
(2) and then, make nonwoven fabric with the condition identical with embodiment 1.The performance of this nonwoven fabric is as shown in table 2, and just the softness softness is to 139mm, and good work has again, and 10% modulus intensity is up to 35.3 (N/50mm).
(3) using the embroidery silk identical, when the nonwoven fabric that above-mentioned (2) are obtained is embroidered, do not having overlap, the dislocation of embroidery pattern, be suitable as base fabric for burnt-out lace with embodiment 1.In addition, because the water solubility temperature B of the base cloth after the embroidery is 78 ℃, B-A is 2.0 ℃, so after base cloth is removed in dissolving, also can not produce dyestuff and come off, adhere to from the embroidery silk, obtains the embroidery pattern distinctness, has the embroidery cloth of feeling of high class.
Comparative example 1
As the nonwoven fabric raw material, make the omnidirectional net identical with embodiment 1, the aqueous solution of the 1 quality % that will be made of the PVA identical with fibrous raw material contains and is immersed in this omnidirectional net, and crowded liquid with 70 ℃ of dryings, obtains nonwoven fabric.The performance of this nonwoven fabric is as shown in table 2, though 10% modulus intensity is up to 54.8 (N/50mm width), but, because just softness is 162mm, and is too high, so Boardy Feeling, though wanting to use the embroidery silk identical with embodiment 1 embroiders, but can fracture etc. at the embroidery hour hands, operation is bad, is not suitable as base fabric for burnt-out lace.
Comparative example 2
As the nonwoven fabric raw material, make the omnidirectional net identical with embodiment 1, the aqueous solution of the 1 quality % that will be made of the PVA identical with fibrous raw material foams, and contains to be immersed in this omnidirectional net, with 70 ℃ of dryings, obtains nonwoven fabric.The performance of this nonwoven fabric is as shown in table 2, because 10% modulus intensity is low to moderate 7.8 (N/50mm width), so when using the embroidery silk identical with embodiment 1 to embroider, overlap, the dislocation that can produce embroidery pattern are not suitable as base fabric for burnt-out lace.
Comparative example 3
As the nonwoven fabric raw material, make the omnidirectional net identical with embodiment 1, make it between knurling rolls that heat and steam roller, to pass through, obtain nonwoven fabric thus.The embossing condition of this moment is 195 ℃ of bond area rate 12%, temperature, linear pressure 329N/cm, processing speed 5m/ branch.The performance of this nonwoven fabric is as shown in table 2, though embroidery property can be accepted, but, because the water solubility temperature of the base cloth after the embroidery is 86.5 ℃, with the difference of the water solubility temperature of fiber be 14.5 ℃, so during the base cloth after embroidery is removed in dissolving, produced coming off, adhering to again of dyestuff, be not suitable as base fabric for burnt-out lace.
[table 1]
Embodiment 1 comparative example 1-3 Embodiment 2 Embodiment 3
Fibre strength (cN/dtex) 7.2 6.2 3.1
Degree of stretching (%) 10.6 14.3 19.5
Embodiment 1 comparative example 1-3 Embodiment 2 Embodiment 3
Water solubility temperature A (℃) 72 65 76
[table 2]
Embodiment 1 Embodiment 2 Embodiment 3 Comparative example 1 Comparative example 2 Comparative example 3
Weight per unit area (g/m 2) 40.2 39.7 40.3 40.4 40.0 39.8
Thickness (mm) 0.16 0.16 0.17 0.16 0.17 0.35
Foam-like resin adhesion amount (quality %/PVA) 8.3 7.6 8.5 27.9 1.6 0
Horizontal 10% modulus intensity (N/50mm width) 27.8 19.4 35.3 54.8 7.8 28.0
Firm softness (mm) 118 86 139 162 81 62
Water solubility temperature B (℃) 74.0 68.5 78.0 76.0 74.0 86.5
B-A(℃) 2.0 3.5 2.0 4.0 2.0 14.5
Embroidery property Well Well Well Boardy Feeling, operation is bad There is the overlap dislocation of embroidery pattern Exist coming off of dyestuff to adhere to
Overall merit Well Well Well Cannot Cannot Cannot
The possibility of utilizing on the industry
According to the present invention, can provide a kind of softness, good work, dimensional stability are high, be difficult to produce embroidery pattern overlap, dislocation, and solution temperature is low, cheap base fabric for burnt-out lace and manufacture method thereof.

Claims (2)

1. the base fabric for burnt-out lace of embroidery silk is dyed in a use earlier, it is characterized in that weight per unit area is 15-50g/m 2The omnidirectional net nonwoven fabric of water-soluble poval fibrid satisfy the full terms of following (1) to (3), and,
The water solubility temperature that constitutes the water-soluble poval fibrid of nonwoven fabric is 50-80 ℃,
In the water solubility temperature that makes the water-soluble ethylene alcohol fibrid that constitutes nonwoven fabric is A ℃, when making the water solubility temperature of the omnidirectional net nonwoven fabric of polyvinyl alcohol fibrid be B ℃, and B-A≤5 ℃,
(1) attached to the adhesive on the nonwoven fabric be make comprise polyvinyl alcohol resin and have the foaming penetrant action interfacial agent become foamed adhesive at the interior aqueous solution, and, by carrying out dry heat treatment in impregnation, after additional, when foamed binder aqueous solution froth breaking, make adhesive focus on the interlacing portion of fiber, and this adhesive is 3-17 quality % with respect to the adhesion amount of whole non-woven fabrics quality
(2) the 10% horizontal modulus intensity of nonwoven fabric is the 15-80N/50mm width,
(3) the firm softness of nonwoven fabric is 40-150mm.
2. the manufacture method of the base fabric for burnt-out lace of embroidery silk is dyed in the described use of claim 1 earlier, it is characterized in that, make the interfacial agent that comprises polyvinyl alcohol resin and have a foaming penetrant action interior become on the omnidirectional net nonwoven fabric that the foamed aqueous solution is attached to the water-soluble poval fibrid after, carry out dry heat treatment.
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