CN101250818A - Method for manufacturing intelligent thermoregulation type functional yarn - Google Patents
Method for manufacturing intelligent thermoregulation type functional yarn Download PDFInfo
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Abstract
The invention discloses a method for preparing an intelligent temperature regulating functional yarn, which has the following steps of charging cementing agent and thickening agent into phase-change microcapsule dispersion to intimately mix and obtain phase-change microcapsule functional finishing agent with viscosity, wherein the content of the cementing agent and the thickening agent are respectively 0.5-5% by weight of the finishing agent, the phase-change microcapsule functional finishing agent is finished on the yarn via a double-nip-double-dip or a sizing process, and then obtaining textiles via weave technology. The selected capsule is water dispersion with good surroundings, wherein the capsule size is about 100nm which is only one-tenth or one-percent of the yarn fineness, thereby being capable of greatly improving dosages of the capsules in the yarns, at the same time holding constant raw mechanical property of the yarn, furthermore, the method has the advantages of convenient and flexible processing, good operability and being basically not influence on hand feeling and breathability of fabrics due to adopting the double dip double nip or the slashing process, and the performance test indicates that the finished textile has obvious heat storage and temperature regulating effects.
Description
Technical field
The present invention relates to textile material, especially relate to a kind of preparation method of intelligent thermoregulation type functional yarn.
Background technology
Clothes are closely bound up with social progress and science and technology development as the symbol of human lives's necessity and human civilization, and develop along with development of times.Since the nineties in last century, the development of novel heat insulation temperature adjustment yarn and fabric is risen suddenly, it is a kind of high-tech product that is rich in vitality, intelligent thermoregulating yarn and goods thereof can must be regulated self temperature by auto-reverse with variation of ambient temperature, not only can improve the comfortableness of clothes, and have high added value, can realize high benefit.Therefore, various in recent years novel insulation temperature-regulation fabrics are come out one after another, for example far infrared yarn, cooling fabric, in precursor liquid, dose special ceramic powders or coating is coated on ceramic powders on the fabric.
Chinese patent ZL96105229.5 discloses a kind of core or island component that adopts polymer such as polyethers, aliphatic polyester, polyester ether as yarn, and is sheath or sea component with the fibre-forming polymer, compoundly makes the automatic temperature-control method of yarn through melt spinning.In this method, because the incompatibility between core and sheath material, after being separated, cause that very easily core takes effusion in the process at spinning and fabric, make spinning process be difficult to the complex yarn product that carries out even can not get designing.
Chinese patent ZL00105837.1 discloses after the microcapsules of phase-change material and the fibre-forming polymer blend granulation, prepares the temperature adjustment method of yarn through melt spinning.The average grain diameter of the microcapsules in this method is between 1～10 μ m, and is suitable with the fineness of yarn, therefore bigger to the spinning technique influence.And melt-spinning technology requires microcapsule wall material to have excellent heat endurance, the condition restriction strictness, and the industrializing implementation difficulty is bigger.
Chinese patent ZL200610013870.8 disclose comonomers such as the microcapsules of phase-change material and acrylonitrile are mixed and polymerization after, extrude preparation temperature adjustment method of yarn through twin-screw.Strict in this method to the microcapsules particle diameter, the excessive easy obstruction spinning head of microcapsules particle diameter.The microcapsules particle diameter of selecting for use is between 1～10 μ m, and is suitable with the fineness of yarn, therefore bigger to the intensity effect of spinning technique and yarn.In addition, this technology is only applicable to the synthetic threads of melting spinning.
Summary of the invention
The object of the present invention is to provide a kind of preparation method of intelligent thermoregulation type functional yarn, selecting average grain diameter for use is the phase-change microcapsule of 100nm, soaks two through two and rolls or slashing technique is coated on yarn with it and ends, but make the yarn of intelligent thermoregulating.
The technical solution used in the present invention is as follows:
1) weight percent of working solution is as follows:
A: micro-capsule dispersion liquid 90～99%
B: binder (0.5～5%)
C: thickener (0.5～5%)
Wherein: the concentration of A is 30%, and its phase transition temperature is 33～37 ℃, and the concentration of B is 30%, and the concentration of C is 30%;
2) preparation method: the bath raio of yarn and working solution: 1: 50～1: 10, soak two by two and roll or slashing technique coheres working solution on yarn.
Described two to soak two roll process be room temperature, pick-up 50～150%, and preliminary drying 80～100 ℃ * 1～2 hour baked 100～150 ℃ * 1～10 minute.
Described slashing technique is 100～200 meters/minute of scanning frequencies, 60～90 ℃ of drying room temperature.
Described adhesive is polyacrylate adhesive or polyurethane binding.
Described thickener is the polyacrylic thickener.
Described yarn is cotton, fiber crops, viscose glue, acrylic fibers, terylene, the blended yarn of polyamide fibre and above-mentioned two or more yarn.
Described polyacrylate adhesive is adhesive UDT, adhesive BA or adhesive SH-821; Described polyurethane binding is adhesive WX-351.
Described polyacrylic thickener is thickener PAE, thickener HD-70, thickener AST-X or thickener HIT.
The present invention is by Chinese invention patent ZL200410017942.7, ZL200510049797.5, ZL200510049796.0 prepares micro-capsule dispersion liquid, on this basis, make full use of microcapsules stable performance, advantage such as nontoxic, pollution-free, apply it on the finishing functions of textiles, thus the added value of raising textiles.The present invention puts process technology in order after utilizing yarn, and the phase-change microcapsule functional finishing agent that is mixed with is put in order it on yarn through soaking, roll, dry by the fire, bake processing step, then makes temperature-regulation fabric by weaving technology.And find to have splendid thermoregulation effect after phase-change microcapsule is put in order on the textiles by the hot property of measuring microcapsules and the heat transfer coefficient of putting the front and back textiles in order, feel, washing fastness.
The beneficial effect that the present invention has is:
The capsule of selecting for use is aqueous dispersions, and is environment-friendly; Capsule is of a size of about 100nm, only be fineness of yarn ten to one of percentage, therefore can in yarn, keep the constant of the original mechanical performance of yarn in the consumption improving it greatly; In addition, employing two is soaked two and rolled or slashing technique, and is easy to process flexible, workable, and do not influence fabric feeling and gas permeability substantially.Through performance detects and shows, arrangement back textiles has tangible heat-accumulation temperature-adjustment effect.
Description of drawings
Fig. 1 is the DSC curve of sample among the embodiment 12.
Fig. 2 is the DSC curve of sample among the embodiment 14.
Fig. 3 is the stereoscan photograph when yarn is put in order without the microcapsules working solution among the embodiment 1.
Fig. 4 is the stereoscan photograph of yarn after the arrangement of microcapsules working solution among the embodiment 1.
Fig. 5 is through microcapsules working solution arrangement back and the temperature variation curve of untrimmed sample (contrast sample) in temperature-fall period among embodiment 12 and the embodiment 14.
Fig. 6 is through microcapsules working solution arrangement back and the temperature variation curve of untrimmed sample (contrast sample) in temperature-rise period among embodiment 12 and the embodiment 14.
The specific embodiment
1, pad the preparation of working solution:
In the phase-change microcapsule aqueous dispersions, add a certain amount of adhesive and thickener, stir and make phase-change microcapsule functional finishing agent with certain viscosity.
2, pad technology:
Yarn is immersed in the microcapsules dressing liquid, flooded 1～5 hour, yarn is after abundant swelling, and microcapsules not only stick to yam surface, also are penetrated into yarn inside.
3, preliminary drying and baking:
Fabric through above-mentioned processing is carried out drying and shaping handle preliminary drying (50～90 ℃ * 1～2 hour) → bake (110～130 ℃ * 1～5 minute).The one, in order to remove moisture content, the 2nd, in order to bake the back adhesive through high temperature microcapsules are anchored on the yarn, improve water-fast washing and fastness to rubbing.
4, weave cotton cloth:
Adopt woven or knitting, the yarn of putting in order is made textiles.
5, method of testing and performance evaluation:
The main at present effect of following several method mensuration phase transformation capsule on finish fabric, concrete grammar such as the table 1 of adopting.
Table 1 is measured the method for finish fabric heat-accumulation temperature-adjustment effect
| Assay method | Location parameter |
| Differential scanning calorimetry (DSC) | Temperature adjustment fabric heat storage capacity and phase transition temperature scope |
| ESEM method (SEM) | The lasting effect of temperature adjustment fabric |
| Dull and stereotyped insulation instrument | The heat transfer heat insulation effect of fabric |
| The variations in temperature determination method | The persistence of variations in temperature degree and phase transformation influence |
| The permeability test | The variation of arrangement back fabric air-permeability performance |
Embodiment 1:
Working solution prescription: the nano phase change capsule, 33 ℃ of phase transition temperatures, average grain diameter 100nm, consumption are 95.5%; Adhesive (WX-351), concentration ratio 3%; Thickener (HIT), consumption 1.5%.
Preparation technology: after load weighted thickener placed container, under the stirring, the microcapsules dispersion emulsion is added in three batches, continue to stir 30 minutes, add adhesive, continue to stir and make phase-change microcapsule function operation liquid with viscosity.
Two soak two roll process: purified cotton yarns (28.6 * 3tex); Bath raio: 1: 30, pick-up 150%, preliminary drying (80 ℃ * 2h) → (bake 130 ℃ * 2min).
Embodiment 2:
Working solution prescription: the nano phase change capsule, 37 ℃ of phase transition temperatures, average grain diameter 100nm, consumption are 95.5%; Adhesive (WX-351), consumption 3%; Thickener (HIT), consumption 1.5%.
Preparation technology: after load weighted thickener placed container, under the stirring, the microcapsules dispersion emulsion is added in three batches, continue to stir 30 minutes, add adhesive, continue to stir and make phase-change microcapsule function operation liquid with viscosity.
Two soak two roll process: purified cotton yarns (28.6 * 3tex); Bath raio: 1: 30, pick-up 100%, preliminary drying (80 ℃ * 1.5h) → (bake 130 ℃ * 3min).
Embodiment 3:
Working solution prescription: the nano phase change capsule, 33 ℃ of phase transition temperatures, average grain diameter 100nm, consumption are 96.0%; Adhesive adhesive (SH-821), consumption 2.0%; Thickener (HD-70), consumption 2.0%.
Preparation technology: after load weighted thickener placed container, under the stirring, the microcapsules dispersion emulsion is added in three batches, continue to stir 30 minutes, add adhesive, continue to stir and make phase-change microcapsule function operation liquid with viscosity.
Two soak two roll process: viscose glue yarn (18.4 * 3tex); Bath raio: 1: 30, pick-up 100%, preliminary drying (80 ℃ * 2h) → (bake 130 ℃ * 1min).
Embodiment 4:
Working solution prescription: the nano phase change capsule, 33 ℃ of phase transition temperatures, average grain diameter 100nm, consumption are 92%; Adhesive adhesive (UDT), consumption 3%; Thickener (AST-X), consumption 5%.
Preparation technology: after load weighted thickener placed container, under the stirring, the microcapsules dispersion emulsion is added in three batches, continue to stir 30 minutes, add adhesive, continue to stir and make phase-change microcapsule function operation liquid with viscosity.
Technique for applying: laboratory sample is a polyamide fibre yarn (32 * 2tex); Bath raio: 1: 30, the finishing technique flow process was: dip finishing liquid (room temperature, dipping 2h) → drying → preliminary drying (80 ℃ * 2h) → (bake 130 ℃ * 3min).
Two soak two roll process: polyamide fibre yarn (32 * 2tex); Bath raio: 1: 30, pick-up 100%, preliminary drying (150 ℃ * 1.5h) → (bake 130 ℃ * 1min).
Embodiment 5:
Working solution prescription: the nano phase change capsule, 35 ℃ of phase transition temperatures, average grain diameter 100nm, consumption are 93.5%; Adhesive adhesive (BA), consumption 5%; Thickener (PAE), consumption 1.5%.
Preparation technology: after load weighted thickener placed container, under the stirring, the microcapsules dispersion emulsion is added in three batches, continue to stir 30 minutes, add adhesive, continue to stir and make phase-change microcapsule function operation liquid with viscosity.
Two soak two roll process: spun polyester thread (28 * 2tex); Bath raio: 1: 10, pick-up 80%, preliminary drying (80 ℃ * 1.5h) → (bake 130 ℃ * 1min).
Embodiment 6:
Working solution prescription: the nano phase change capsule, 37 ℃ of phase transition temperatures, average grain diameter 100nm, consumption are 95.5%; Adhesive adhesive (WX-351), consumption 3%; Thickener (HIT), consumption 1.5%.
Preparation technology: after load weighted thickener placed container, under the stirring, the microcapsules dispersion emulsion is added in three batches, continue to stir 30 minutes, add adhesive, continue to stir and make phase-change microcapsule function operation liquid with viscosity.
Two soak two roll process: ramie yarn (32 * 2tex); Bath raio: 1: 50, pick-up 100%, preliminary drying (80 ℃ * 2h) → (bake 130 ℃ * 3min).
Embodiment 7:
Working solution prescription: the nano phase change capsule, 37 ℃ of phase transition temperatures, average grain diameter 100nm, consumption are 90.5%; Adhesive adhesive (WX-351), consumption 5%; Thickener (HIT), consumption 4.5%.
Preparation technology: after load weighted thickener placed container, under the stirring, the microcapsules dispersion emulsion is added in three batches, continue to stir 30 minutes, add adhesive, continue to stir and make phase-change microcapsule function operation liquid with viscosity.
Two soak two roll process: polyester cotton blended yarns (50/50,32 * 2tex); Bath raio: 1: 50, pick-up 100%, preliminary drying (80 ℃ * 2h) → (bake 130 ℃ * 3min).
Embodiment 8:
Working solution prescription: the nano phase change capsule, 33 ℃ of phase transition temperatures, average grain diameter 100nm, consumption are 98.5%; Adhesive adhesive (UDT), consumption 1.0%; Thickener (HIT), consumption 0.5%.
Preparation technology: after load weighted thickener placed container, under the stirring, the microcapsules dispersion emulsion is added in three batches, continue to stir 30 minutes, add adhesive, continue to stir and make phase-change microcapsule function operation liquid with viscosity.
Two soak two roll process: nitrile cotton blending yarn (50/50,32 * 2tex); Bath raio: 1: 50, pick-up 100%, preliminary drying (80 ℃ * 2h) → (bake 130 ℃ * 3min).
Embodiment 9:
Working solution prescription: the nano phase change capsule, 35 ℃ of phase transition temperatures, average grain diameter 100nm, consumption are 98.5%; Adhesive adhesive (UDT), consumption 1.0%; Thickener (HIT), consumption 0.5%.
Preparation technology: after load weighted thickener placed container, under the stirring, the microcapsules dispersion emulsion is added in three batches, continue to stir 30 minutes, add adhesive, continue to stir and make phase-change microcapsule function operation liquid with viscosity.
Slashing technique: nitrile cotton blending yarn (50/50,32 * 2tex); 100 meters/minute of scanning frequencies, 60 ℃ of drying room temperature.
Embodiment 10:
Working solution prescription: the nano phase change capsule, 37 ℃ of phase transition temperatures, average grain diameter 100nm, consumption are 95.5%; Adhesive (WX-351), consumption 3%; Thickener (HIT), consumption 1.5%.
Preparation technology: after load weighted thickener placed container, under the stirring, the microcapsules dispersion emulsion is added in three batches, continue to stir 30 minutes, add adhesive, continue to stir and make phase-change microcapsule function operation liquid with viscosity.
Slashing technique: purified cotton yarns (28.6 * 3tex); 200 meters/minute of scanning frequencies, 90 ℃ of drying room temperature.
Embodiment 11:
Working solution prescription: the nano phase change capsule, 35 ℃ of phase transition temperatures, average grain diameter 100nm, consumption are 95.5%; Adhesive (WX-351), consumption 3%; Thickener (HIT), consumption 1.5%.
Preparation technology: after load weighted thickener placed container, under the stirring, the microcapsules dispersion emulsion is added in three batches, continue to stir 30 minutes, add adhesive, continue to stir and make phase-change microcapsule function operation liquid with viscosity.
Slashing technique: purified cotton yarns (28.6 * 3tex); 160 meters/minute of scanning frequencies, 70 ℃ of drying room temperature.
Embodiment 12:
The woven yarn that embodiment 1 arrangement is obtained becomes plain, through filling density: 236 * 236; Cloth after will being made into then is through post processings such as washing, softnesses, tests its performance and compares with finish fabric not.
Embodiment 13:
Adopt knitting method blending to be woven into plain cloth on the yarn of arrangement among embodiment 1 and the embodiment 5, through filling density: 245 * 196; Cloth after will being made into then is through post processings such as washing, softnesses, tests its performance and compares with finish fabric not.
Embodiment 14:
The woven yarn that embodiment 2 arrangement is obtained becomes plain, through filling density: 236 * 236; Cloth after will being made into then is through post processings such as washing, softnesses, tests its performance and compares with finish fabric not.
Method of testing and performance evaluation:
1, Fig. 1 is the DSC curve of sample among the embodiment 12.
Obtain cloth by the temperature adjustment yarn weaving and show the distinctive endothermic peak of phase-change microcapsule, therefore have excellent temperature adjusting performance.The temperature adjustment interval is 20～33 ℃, and heat content is 10.1J/g.
2, Fig. 2 is the DSC curve of sample among the embodiment 14.
Obtain cloth by the temperature adjustment yarn weaving and show the distinctive endothermic peak of phase-change microcapsule, therefore have excellent temperature adjusting performance.The temperature adjustment interval is 25～33 ℃, and heat content is 16.7J/g.
3, the coated effect of microcapsules
Fig. 3 is purified cotton yarns surface and the stereoscan photograph of cross section before the arrangement of phase transformation capsule working solution among the embodiment 1.
Fig. 4 be among the embodiment 1 purified cotton yarns surface and cross section through the arrangement of phase transformation capsule working solution with after stereoscan photograph.
Contrasting two figure can obviously must find out, arrangement back cotton area load has a large amount of phase-change microcapsules; Space between the cotton is fully filled by the microcapsules dressing liquid.
4, the test of temperature lowering curve;
Laboratory sample is the temperature-fall period of textile woven cloth in embodiment 12 and 14.Method of testing is as follows: this temperature adjustment fabric sample and commonly take out after not putting cloth specimen in order heating reaching equilibrium temperature in 1 hour in 41 ℃ of baking ovens respectively, its temperature lowering curve, 24 ℃ of room temperatures are tested in cooling naturally.
As shown in Figure 5, in the temperature-fall period, when being higher than phase transition temperature, the cloth after the arrangement overlaps with the temperature lowering curve of calico, shows that phase-change microcapsule does not exert an influence to the hot property of cloth in this stage.Along with the further reduction of temperature, near phase transition temperature (embodiment 12:33 ℃; Embodiment 14:37 ℃), the variations in temperature of arrangement back cloth obviously lags behind the contrast sample.Therefore, this cloth has excellent temperature adjustment function.
5, the test of heating curve;
Laboratory sample is the temperature-rise period of textile woven cloth in embodiment 12 and 14.Method of testing is as follows: this temperature adjustment fabric sample and the common cloth specimen of not putting in order were placed in constant temperature and humidity (20 ℃ of temperature, the humidity 60%) environment balance after 24 hours, it is placed on its heating curve of test on 40 ℃ of dull and stereotyped insulation instrument respectively.Test result as shown in Figure 6.
As seen, in the temperature-rise period, in the time of under the phase transition temperature, the cloth after the arrangement overlaps with the heating curve of calico, shows that phase-change microcapsule does not exert an influence to the hot property of cloth in this stage.Along with the further rising of temperature, near phase transition temperature (embodiment 12:33 ℃; Embodiment 14:37 ℃), the cloth after the arrangement then shows tangible intensification hysteresis.This is because the phase-change material melted by heat in the microcapsules by the solid-state liquid state that becomes, absorbs a large amount of latent heat, but temperature maintenance is constant.Thereby realized temp regulating function to fabric.
5, permeability test;
Tester: adopt YG461B type fabric air-permeability amount instrument that the heat transfer property of sample before and after the arrangement is tested comparison.
Test condition: 20 ℃ of temperature, relative humidity 60%.
Sample: laboratory sample is a textile woven cloth in embodiment 12 and 14; 30cm * 30cm, (more than selvedge 8cm); Test number (TN): per sample (p.s.) is respectively got 10 tests.Test result to gas permeability sees Table 2.
Table 2. embodiment 12 and embodiment 14 permeability test results
| Specimen types | Not | Embodiment | 12 | Embodiment 14 |
| Average Air permenbility/L/m2*s | 841.8 | 797.6 | 785.8 |
Compare untrimmed fabric, the sample gas permeability among the embodiment 12 and 14 slightly descends.
6, thermo-resistance measurement;
Adopt the dull and stereotyped insulation instrument of YG (B) 606D type, woven among unfinished cloth, embodiment 12 and the embodiment 16 and cloth are carried out the heat transfer property test relatively, test result sees attached list 3
Test condition: 20 ℃ of temperature, relative humidity 60%.
Size of sample: 30cm * 30cm.
Compare untrimmed fabric, the sample heat conductivility among the embodiment 12 and 14 obviously improves.
Table 3 heat transfer property test result
Claims (8)
1. the preparation method of an intelligent thermoregulation type functional yarn is characterized in that:
1) weight percent of working solution is as follows:
A: micro-capsule dispersion liquid 90～99%
B: binder 0.5～5%
C: thickener 0.5～5%
Wherein: the concentration of A is 30%, and its phase transition temperature is 33～37 ℃, and the concentration of B is 30%, and the concentration of C is 30%;
2) preparation method: the bath raio of yarn and working solution: 1: 50～1: 10, soak two by two and roll or slashing technique coheres working solution on yarn.
2. the preparation method of a kind of intelligent thermoregulation type functional yarn according to claim 1 is characterized in that: described two to soak two roll process be normal temperature, pick-up 50～150%, and preliminary drying 80～100 ℃ * 1～2 hour baked 100～150 ℃ * 1～10 minute.
3. the preparation method of a kind of intelligent thermoregulation type functional yarn according to claim 1, it is characterized in that: described slashing technique is 100～200 meters/minute of scanning frequencies, 60～90 ℃ of drying room temperature.
4. the preparation method of a kind of intelligent thermoregulation type functional yarn according to claim 1, it is characterized in that: described adhesive is polyacrylate adhesive or polyurethane binding.
5. the preparation method of a kind of intelligent thermoregulation type functional yarn according to claim 1, it is characterized in that: described thickener is the polyacrylic thickener.
6. the preparation method of a kind of intelligent thermoregulation type functional yarn according to claim 1 is characterized in that: described yarn is for cotton, fiber crops, viscose glue, acrylic fibers, terylene, the blended yarn of polyamide fibre and above-mentioned two or more yarn.
7. the preparation method of a kind of intelligent thermoregulation type functional yarn according to claim 4, it is characterized in that: described polyacrylate adhesive is adhesive UDT, adhesive BA or adhesive SH-821; Described polyurethane binding is adhesive WX-351.
8. the preparation method of a kind of intelligent thermoregulation type functional yarn according to claim 1, it is characterized in that: described polyacrylic thickener is thickener PAE, thickener HD-70, thickener AST-X or thickener HIT.
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