CN102121181B - After-finishing process of water-soluble PVA (Poly Vinyl Alcohol) fiber carrier and animal fine hair chopped fiber knitted fabric - Google Patents
After-finishing process of water-soluble PVA (Poly Vinyl Alcohol) fiber carrier and animal fine hair chopped fiber knitted fabric Download PDFInfo
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- CN102121181B CN102121181B CN201010300185XA CN201010300185A CN102121181B CN 102121181 B CN102121181 B CN 102121181B CN 201010300185X A CN201010300185X A CN 201010300185XA CN 201010300185 A CN201010300185 A CN 201010300185A CN 102121181 B CN102121181 B CN 102121181B
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Abstract
The invention belongs to the technical field of wool manufacturing, and particularly discloses an after-finishing process of a water-soluble PVA (Poly Vinyl Alcohol) fiber carrier and animal fine hair chopped fiber knitted fabric. The process comprises the following steps of: (1) performing vinylon dissolution on the knitted fabric at the temperature between 93 DEG C and 97 DEG C for 10-20 minutes, draining, dehydrating and performing vinylon dissolution at the temperature between 93 DEG C and 97 DEG C; (2) after dehydration, performing after-finishing on knitted clothes; (3) adding a mercerization finishing agent, raising the temperature to 45-55 DEG C and soaking for 15-30 minutes; and (4) fulling, rinsing and drying, wherein the knitted fabric is a woolen or semi-worsted sweater product produced by co-spinning water-soluble PVA fibers and animal fine hair chopped fibers. By adopting the after-finishing process, the technical difficulties of difficulty in spinning forming and high weaving fiber breakage in a hair chopped fiber knitted fabric spinning process are solved, the utilization ratio of a wool spinning raw material is increased, and the grade and the added value of a product are raised.
Description
Technical field
The present invention relates to the processing method of the knitting wool spinning product that a kind of slubbing or half botany with water-solubility PVA staple fibre and animal fine hair short fiber blending produce; Be specifically related to a kind of water-solubility PVA fiber and accompany the postfinishing process that spins animal fine hair staple fibre knitted fabric, belong to the wool textile technology field.
Background technology
As everyone knows, yakwool is the high-grade wool spinning raw material and the splendid raw material of making knitwear that is only second to goat cashmere.Because yak is the distinctive cold-resistant poultry kind in Qinghai-Tibet Platean, yakwool has special moisture absorption heat release function, and good warmth retention effect, moisture absorption humidity resistance are strong, have natural health-care function.But yakwool fiber length is short, and average length is about 28mm, and the discrete length degree is big, and short have only 15mm, and fineness difference is also very big, and the yakwool crispation number is few, the poor flexibility (than wool) of curling, and therefore, the spinning property of yakwool fiber is poor, and pure to spin difficulty big.The fine hair class staple fibre that similar yakwool is one type also has cashmere, sheep suede etc.
Water-solubility PVA, promptly water-soluble polyvinyl alcohol fibers is a kind of of great value functional differential fibers.Accompany the fine hair class staple fibre that spins one type of yakwool through the PVA fiber, both can improve its spinnability and weaving property, can obtain a high frivolous high-grade pure suede textiles again; Thereby fully excavate and bring into play yakwool cost of material advantage and properties of product characteristics, substitute all kinds of high-grade weavings of cashmere exploitation, furnishings, improve yakwool product specification and added value; Widen wool spinning industry raw materials for production kind; Help the development of wool spinning industry, increase varieties and designs, improve product specification and added value.
The production technology of animal fine hair spun fabrics such as yakwool comprises: 1. with water-solubility PVA staple fibre and yak wool blended, and production slubbing or half botany; 2. knit product design and production; 3. product moves back dimension, back arrangement, finished product packing.At present, the postfinishing process that animal fine hair staple fibre knitted fabrics such as yakwool adopt the PVA companion to spin production does not also have the report of this respect, and the companion of wool woven fabric spins and move back the existing report of dimension technology, but the production of woven fabric and knitted fabric and technology difference great disparity.In process of production, moving back dimension and effective control of postfinishing process is one of key of this technology, if move back dimension thoroughly or the incorrect style that all can directly influence clothes of postfinishing process with take performance.Yet it is inapplicable or move back the loaded down with trivial details problem such as practical application that is difficult to of dimension technology that existing P VA companion spinning method all exists postfinishing process.A kind of low temperature water-soluble polyvinyl alcohol and technology wool blended or that hand over and produce high-count worsted wool fabric with cotton, fiber crops, silk, wool yarn are disclosed like Chinese invention patent ZL03112736.3; Comprise the following steps: that successively 1. select low-temperature polyethylene alcohol fiber and wool blended for use; Produce the look wool top, spin; Or select for use low-temperature polyethylene alcohol long filament and cotton, fiber crops, silk, wool yarn to hand over and produce wool yarn; 2. low temperature yarn steaming; Warping, be woven into grey cloth; 4. grey cloth moves back dimension, obtains high Zhi Chengpin wool fabric through further putting processing in order.This invention can solve the fabric changes of shade of high temperature polyvinyl and wool blend existence, the problem powerful impaired, that energy consumption is high.But this technology can only be applicable to the postfinishing process of woven fabric, and is inapplicable to knit product production and processing technology, and technology is more loaded down with trivial details.
Summary of the invention
The present invention is directed to the deficiency of above-mentioned technical elements; Provide a kind of water-solubility PVA fiber companion to spin the postfinishing process of animal fine hair staple fibre knitted fabric; Utilize middle-grade down raw material (or leftover bits and pieces feed back) to develop and produce high-grade knitted slubbing or half smart imitative product; Solve the spinning shaping difficulty in the fine hair class staple fibre fabrication processes and weaved the high technological difficulties of end breakage rate, improved utilization rate, product specification and the added value of wool textile raw material.
Above-mentioned technical problem of the present invention mainly is able to solve through following technical proposals:
A kind of water-solubility PVA fiber companion spins the postfinishing process of animal fine hair staple fibre knitted fabric, it is characterized in that comprising the steps:
1) knitted fabric moves back dimension, moves back 93～97 ℃ of Wei Wendu, moves back 10～20 minutes dimension time, moves back dimension once more after draining, the dehydration, moves back the dimension temperature maintenance in 93～97 ℃ of scopes;
2) the back arrangement of the laggard hand-manipulating of needle woven garment of dehydration;
3) add the mercerized finish agent and be warming up to 45～55 ℃ of immersions 15～30 minutes;
4) fulling milling, rinsing, oven dry;
Described knitted fabric is slubbing or the half spinning sweater goods that water-solubility PVA staple fibre and animal fine hair short fiber blending are produced.Animal fine hair staple fibre refers to that average length below 30 millimeters, average fineness are the natural animal fiber below 20 microns, comprises staple fibres such as yakwool, sheep suede, goat cashmere.Step 1) through certain bath raio wash for several times or the flow rinsing process thoroughly to remove the PVA water-soluble fibre.
The inventor has done a large amount of experimental works for obtaining the best Wei Wendu postfinishing process that moves back; Partial data is seen table 1, experiment proof: temperature is bigger to the solubility property influence of PVA fiber, and PVA fiber (the water-soluble S-8 staple fibre of PVA) can not all dissolve when 85 ℃ of water temperatures; But when water temperature up to more than 90 ℃ the time; The swelling of PVA fiber and enhanced dissolution rate, this is because after the PVA fiber heat absorption swelling, the big intermolecular movement velocity of fiber is accelerated; Cause big molecular breakdown, removed big intermolecular binding force and soluble in water.So in the present invention, will move back Wei Wendu and be set at 93 ℃～97 ℃, the best Wei Wendu that moves back is 95 ℃, thereby guarantees the dissolving fully of PVA fiber.
Table 1 temperature/time/PVA solubility and solution absorbance table
It is bigger to the product quality influence of moving back dimension technology and obtaining that the inventor moves back the dimension time through a large amount of experiment showed,, can find out that from Fig. 1 and Fig. 2 the course of dissolution of PVA in hot water can be divided into 2 stages, swelling before this, and the back is for dissolving.Swelling is that it absorbs moisture owing on the polyvinyl alcohol macromolecular chain a large amount of hydroxyls is arranged, and hydrone gets into fibrous inside, and fiber volume is increased, and this process probably needs 5～10 minutes.The swelling time of knitted fabric is longer than yarn, and this maybe be because knitted surfaces has wax and knit fabric construction is tight, and hydrone is penetrated into fabric and causes soon not as yarn.Because PVA fiber moisture absorption swelling, dissolving all need the regular hour, when water temperature reached more than 93 ℃, dissolution time was advisable to be set at greater than 10 minutes, to guarantee the PVA fiber enough swellings and dissolution time was arranged.
In actual production process, one bathes one-step method is difficult to remove the water-solubility PVA fiber fully, so should adopt certain bath raio to wash for several times or the flow rinsing process moves back and ties up for well, to guarantee the thorough removal of PVA fiber.The hot water that when moving back dimension, can directly add 90～95 ℃ moves back the dimension time with shortening.
As preferably, the dimension process of moving back in the step 1) repeats 3～4 times.To guarantee the thorough removal of PVA fiber.
As preferably, the blending ratio of the water-solubility PVA staple fibre of said knitted fabric and animal fine hair staple fibre is between 10～20%.The shared blending rate of water-solubility PVA fiber is high more, and the thread density that can spin is just low more.But its proportion is too high, moves back obtain after the dimension on the low side than the high-count yarn brute force, bar evenness is poor, and fabric construction is loose, and the wearability of product can descend.The water-solubility PVA proportion is too small, then mixes difficulty (being difficult for mixing), spinning property is poor, and thread density reduces less, does not reach to improve yakwool spinning property and the purpose of spinning low line density yarn.Therefore, the choose reasonable blending rate both can guarantee to spin and carry out smoothly, can effectively reduce thread density again.Learn that through science and production practices yakwool fiber and water-solubility PVA blending rate are good 10%～20%, and can guarantee that thread density reduces about 2tex.
As preferably, in the step 1), the pH value of moving back the dimension process is controlled between 6～7.Effective control of pH value can guarantee that knitwear such as yakwool receive the corrosion of soda acid in moving back the dimension process, and influences product quality.
As preferably, the dimension process of moving back of step 1) is followed rubbing or stirring to knitted fabric, and what make knitted fabric moves back dimension evenly and thoroughly, to guarantee that moving back the dimension rate reaches more than 99%.
As preferably, move back dimension bath raio 1: 20～30.The bath raio of moving back in the dimension process confirms that according to the number of times that moves back dimension bath raio is big, moves back the dimension number of times and can reduce, and bath raio is moved back the dimension number of times for a short time will be increased, and decide according to actual situation of moving back dimension.Move back dimension bath raio the 1: 20～the 30th, proper.
Therefore; Of the present invention move back that the dimension method has can the water-solubility PVA fiber removal in the animal fine hair fabric is clean; And the style of moving back dimension back knitwear that can make animal fine hair fabrics such as yakwool with take performance and reach effect preferably; Move back the knit product that obtains after the dimension and have light weight, fluffy, the good characteristics of soft hand feeling and thermal property are arranged.
Description of drawings
Fig. 1 moves back the curve map of dimension time to the influence of yarn PVA solubility.
Fig. 2 moves back the curve map of dimension time to the influence of knit fabric PVA solubility.
The specific embodiment
Through embodiment, do further bright specifically below to technical scheme of the present invention.
Embodiment 1:
1. select yakwool fiber for use, specification: average fineness 18.6 μ m, average length 28mm, contain the suede rate: diameter variation coefficient 93.9%: discrete length degree 27.25%: 48.45%.The FX903 cashmere that newly spins with Beijing is special-purpose to be mixedly configured into compounding agent solution with crude oil, water and antistatic additive by proper ratio, then the compounding agent solution that mixes is sprayed on the yakwool by the setting technological requirement, and vexed mao 24 hours.Then with fibre fineness: 1.67dtex, fibre length: 38 ± 2.5mm, the water-soluble staple fibre of S-8PVA mixes.
2. the PVA fiber is taked preparatory shredding,, guarantee that the PVA fiber evenly distributes in wool top, prevent that the PVA fiber from producing boundling, improves the mixture homogeneity of PVA fiber and yakwool again with the mixed of the yakwool of handling well by 15%: 85%.
3. adopt ingot to spin spinning process, produce 38.8tex/2 (25.8Nm/2) (measured value) PVA companion and spin yak down yarn.
4. with the kind 12G CX252S of the Star full-automatic computer straight-bar machines of Ningbo City YuRen knitting Machine Co., Ltd, adopt 38.8tex/285% yakwool fiber/15%PVA blended yarn making knit fabric.
5. product is put in order after moving back peacekeeping by following method.
1) above-mentioned knitted fabric soaks and is warming up to 95 ℃ (moving back Wei Wendu) in back 10 minutes, is incubated draining after 10 minutes, and dehydration adds hot water to knitted fabric it is warming up to rapidly about 95 ℃, is incubated 10 minutes; Move back the dimension process pH value and be controlled between 6～7, bath raio is 1: 25, repeats 3 times, moves back the dimension process and also is accompanied by rubbing or stirring to knitted fabric;
2) the back arrangement of the laggard hand-manipulating of needle woven garment of dehydration;
3) to step 2) knitted fabric that obtains carries out rinsing, and the ultra smooth additive NB-17 that adds blending mercerising smooth, soft finishing agent NB-535 that 10% Ningbo Runhe Chemical Industry Co., Ltd. produces and 5% is warming up to 45 ℃ and handled about 30 minutes;
4) fulling milling, rinsing, oven dry.
6. moving back dimension back (pure) yak down yarn number is 33.4tex * 2 (29.9Nm/2) (measured value), and the yam count reduction rate is 13.9%, and the weight reduction rate is 15.3%, and moving back the dimension rate is 99.2%, has reached light weight, high requirement of propping up.
Embodiment 2
Concrete scheme is with embodiment 1, and difference is following:
PVA and sheep suede are pressed 10%: 90% mixed in the step 2.;
1) above-mentioned knitted fabric soaks and is warming up to 93 ℃ (moving back Wei Wendu) in back 10 minutes, is incubated draining after 10 minutes, and dehydration adds hot water to knitted fabric it is warming up to rapidly about 93 ℃, be incubated draining after 10 minutes, dewaters; Move back in the dimension process, the pH value is controlled between 6～7, and bath raio is 1: 20, moves back the dimension process and also is accompanied by rubbing or stirring to knitted fabric;
Above-mentioned steps repeats once;
2) the back arrangement of the laggard hand-manipulating of needle woven garment of dehydration;
3) to step 2) knitted fabric that obtains carries out rinsing, and the ultra smooth additive NB-17 that adds blending mercerising smooth, soft finishing agent NB-535 that 10% Ningbo Runhe Chemical Industry Co., Ltd. produces and 5% is warming up to 50 ℃ and handled about 30 minutes;
4) fulling milling, rinsing, oven dry.
It is 33.4tex * 2 (29.9Nm/2) (measured value) that step 6. is moved back dimension back (pure) sheep hair yarn number, and the yam count reduction rate is 9.2%, and the weight reduction rate is 10.2%, and moving back the dimension rate is 99%, has reached light weight, high requirement of propping up.
Embodiment 3
1. select yakwool fiber average fineness 18.6 μ m, average length 28mm for use, contain the suede rate: 93.9% diameter variation coefficient: discrete length degree 27.25%: 48.45%.The FX903 cashmere that newly spins with Beijing is special-purpose to be mixedly configured into solution according to a certain percentage with crude oil, water and antistatic additive, then the auxiliary agent that mixes is sprayed on the yakwool by the setting technological requirement, and vexed mao 24 hours.Then with fibre fineness: 1.67dtex, fibre length: 38 ± 2.5mm, the water-soluble staple fibre of S-8PVA mixes.
2. the PVA fiber is taked preparatory shredding,, guarantee that the PVA fiber evenly distributes in wool top, prevent that the PVA fiber from producing boundling, improves the mixture homogeneity of PVA fiber and yakwool again with the mixed of the yakwool of handling well by 20%: 80%.
3. adopt the half smart imitative spinning process that spins, produce 41.7tex/2 (24Nm/2) PVA companion and spin yak down yarn.
4. adopt 41.7tex/2 (24Nm/2) 85% yakwool fiber/15%PVA blended yarn, sweater knitted with the braiding of 12G hand knitting machine.
5. product is put in order after moving back peacekeeping by following method.
1) be warming up to 97 ℃ after the immersion of above-mentioned knitted fabric, be incubated draining after 20 minutes, dehydration adds hot water to knitted fabric it is warming up to rapidly about 97 ℃, is incubated draining after 10 minutes, dewaters; Move back in the dimension process, the pH value is controlled between 6～7, and bath raio is 1: 20, moves back the dimension process and also is accompanied by rubbing or stirring to knitted fabric;
Repeating step 1) three time;
2) the back arrangement of the laggard hand-manipulating of needle woven garment of dehydration;
With the bath raio of yak down sweater by 1: 30, put into the solution of the white a conduit made of long bamboo oil of 1%RH-1104 (Ningbo Runhe Chemical Industry Co., Ltd.), in 30 ℃ of temperature, soak 30min; In the vertical fulling mill of the SFNC2A type of packing into then, 40 ℃ of temperature, employing intermittently rotating manner is carried out, and every immersion 5min rotated 5 seconds, until 30min;
3) rinsing, oven dry.
6. moving back dimension back (pure) yak down yarn number is 33.4tex * 2 (30Nm/2) (measured value), and reduction rate is 19.8%, and the weight reduction rate is 20.38%, has reached light weight, high requirement of propping up.Moving back the dimension rate is 99.6%.
Should be understood that this embodiment only to be used to the present invention is described and be not used in the restriction scope of the present invention.Should be understood that in addition those skilled in the art can do various changes or modification to the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Claims (8)
1. a water-solubility PVA fiber is accompanied the postfinishing process that spins animal fine hair staple fibre knitted fabric, it is characterized in that comprising the steps:
1) knitted fabric moves back dimension, moves back 93～97 ℃ of Wei Wendu, moves back 10～20 minutes dimension time, moves back dimension once more after draining, the dehydration, moves back the dimension temperature maintenance in 93～97 ℃ of scopes;
2) the back arrangement of the laggard hand-manipulating of needle woven garment of dehydration;
3) add the mercerized finish agent and be warming up to 45～55 ℃ of immersions 15～30 minutes;
4) fulling milling, rinsing, oven dry;
Described knitted fabric is slubbing or the half spinning sweater goods that water-solubility PVA staple fibre and animal fine hair short fiber blending are produced.
2. water-solubility PVA fiber companion according to claim 1 spins the postfinishing process of animal fine hair staple fibre knitted fabric, and it is characterized in that: the blending ratio of the water-solubility PVA staple fibre of said knitted fabric and animal fine hair staple fibre is between 10～20%.
3. water-solubility PVA fiber companion according to claim 1 and 2 spins the postfinishing process of animal fine hair staple fibre knitted fabric, and it is characterized in that: described animal fine hair staple fibre is yakwool, sheep suede and goat cashmere staple fibre.
4. water-solubility PVA fiber companion according to claim 1 spins the postfinishing process of animal fine hair staple fibre knitted fabric, and it is characterized in that: the dimension process of moving back in the step 1) repeats 3～4 times.
5. water-solubility PVA fiber companion according to claim 1 spins the postfinishing process of animal fine hair staple fibre knitted fabric, and it is characterized in that: in the step 1), the pH value of moving back the dimension process is controlled between 6～7.
6. accompany the postfinishing process that spins animal fine hair staple fibre knitted fabric according to claim 1 or 4 or 5 described water-solubility PVA fibers, it is characterized in that the dimension process of moving back of step 1) is followed rubbing or stirring to knitted fabric.
7. water-solubility PVA fiber companion according to claim 3 spins the postfinishing process of animal fine hair staple fibre knitted fabric, it is characterized in that the dimension process of moving back of step 1) is followed rubbing or stirring to knitted fabric.
8. water-solubility PVA fiber companion according to claim 1 spins the postfinishing process of animal fine hair staple fibre knitted fabric, it is characterized in that: moving back the dimension bath raio is 1: 20～30.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010300185XA CN102121181B (en) | 2010-01-11 | 2010-01-11 | After-finishing process of water-soluble PVA (Poly Vinyl Alcohol) fiber carrier and animal fine hair chopped fiber knitted fabric |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010300185XA CN102121181B (en) | 2010-01-11 | 2010-01-11 | After-finishing process of water-soluble PVA (Poly Vinyl Alcohol) fiber carrier and animal fine hair chopped fiber knitted fabric |
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| CN102121181A CN102121181A (en) | 2011-07-13 |
| CN102121181B true CN102121181B (en) | 2012-03-21 |
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| CN103541101B (en) * | 2013-10-18 | 2015-08-12 | 江苏倪家巷集团精毛纺织有限公司 | Ultrahigh-count wool/cashmere single-warp single-weft and production method thereof |
| CN112210865B (en) * | 2020-10-14 | 2022-05-06 | 江苏阳光集团有限公司 | Improved double-faced woolen goods production process |
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