CN104452313A - Pretreatment processing method for controlling shrinkage rate of regenerated cellulose fiber and blended fabric thereof - Google Patents
Pretreatment processing method for controlling shrinkage rate of regenerated cellulose fiber and blended fabric thereof Download PDFInfo
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- CN104452313A CN104452313A CN201410666581.2A CN201410666581A CN104452313A CN 104452313 A CN104452313 A CN 104452313A CN 201410666581 A CN201410666581 A CN 201410666581A CN 104452313 A CN104452313 A CN 104452313A
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Abstract
The invention discloses a pretreatment processing method for controlling the shrinkage rate of regenerated cellulose fiber and blended fabric thereof. The pretreatment processing method comprises singeing technology, boiling-out technology and bleaching technology and concretely comprises the following steps: singeing technology: after the gray fabric leaves a burner, mangling amylase-containing water and putting out a fire, performing loose type cropping, packaging with a plastic film, and piling at room temperature; boiling-out technology: washing the singed and piled fabric, padding and boiling out a working solution, piling and steaming, washing, and performing loose type cropping; bleaching technology: mangling a bleaching working solution for the boiled-out cloth, then washing and drying, and performing loose type cropping. The regenerative cellulose fiber and blended fabric thereof prepared by utilizing the method are low in shrinkage rate and controllable, and the fabric is good in brute force and stable in dimension.
Description
Technical field
The present invention relates to a kind of fabric pretreatment processing method, the pre-treatment processing method that especially a kind of regenerated celulose fibre and BLENDED FABRIC washing shrinkage thereof control, belong to textile dyeing and finishing technical field.
Background technology
Washing shrinkage is commodity washing size changing rate, and the washing shrinkage of textiles refers to the percentage of fabric web contraction after washing or immersion.Under normal circumstances, what " washing shrinkage " was minimum is synthetic fiber and blended textile, and be secondly natural fabric, maximum is regenerated celulose fibre, namely maximum with viscose washing shrinkage, is secondly sky silk and model.
Regenerated celulose fibre strand contains a large amount of polar group hydroxyls, it has good hygroscopicity and regain, can blending good with synthetic fiber, the shortcoming of synthetic fiber hygroscopicity difference can be made up, the finished product fabric made has good hygroscopicity and skin-friendly and soft sense of touch, is the preferred of bedclothes fabric.But a large amount of polar group of regenerated celulose fibre also brings great difficulty to dyeing and finishing processing.In spinning and weaving process, grey cloth can gather a large amount of internal stress; In dyeing and finishing process, the warp-wise drawing-off gravitation in each road, broadwise pulling force, and adjoint wet and hot, bringing larger difficulty to the control of regenerated celulose fibre and blended yarn woven fabric washing shrinkage thereof, is " long-standing " in industry.
The easy moisture absorption of hydroxyl polar group that regenerated celulose fibre is a large amount of, can in conjunction with a large amount of water; Simultaneously again due to the effect of water, fiber generation swelling, the diameter of fiber becomes large, and fabric shrinks.The degree of crystallinity of the regenerated celulose fibres such as it silk, model and viscose glue is all low many compared with the degree of crystallinity of the native cellulose fibres such as linen-cotton, therefore a large amount of hydrophilic groups is had in unformed area, the fabric be made up of these fibers is in dyeing and finishing process, once be immersed in the water, can moisture expantion be there is, cause the diameter of fiber to become large, then make the diameter of yarn thicker, finally cause the shrink of fabric, also can make the row yielding step-down of fabric simultaneously.In fiber spinning weaving process, fibre and yarn can be subject to great tension force, and these tension force can form stress and accumulate in fabric after yarn is made into fabric.After fabric runs into water in dyeing and finishing process, make fabric generation stress relaxation due to the plastication of water, thus also can cause the shrink of fabric.
The degree of crystallinity of regenerated celulose fibre is all low many compared with the degree of crystallinity of the native cellulose fibres such as linen-cotton, and therefore these regenerated celulose fibres can not adopt the technique of the native cellulose fibres such as linen-cotton to process, and especially can not adopt mercerising.The regenerated celulose fibre of low-crystallinity is under the effect of alkali,-OH can enter the amorphous region of fiber easily, the hydrogen bond of macromolecular chain can by-OH to breaking, the surface of crystal region also can be etched by-OH simultaneously, the degree of crystallinity of fiber is caused to reduce further, namely cause, between fiber macromolecular chain, slippage more easily occurs, even fiber damages; Hydrophilic radical hydroxyl simultaneously contained by fiber can be more, make fabric washing shrinkage larger, powerfully reduce, and it is poorer that the dimensionally stable of fabric becomes.
Summary of the invention
The object of the invention is to, for the deficiencies in the prior art, by by the performance of fiber self and useful the combining of the dyeing and finishing processing method of fabric, there is provided a kind of fabric washing shrinkage low, powerful large, the pre-treatment processing method that the regenerated celulose fibre of fabric good stability of the dimension and BLENDED FABRIC washing shrinkage thereof control.
To achieve these goals, the present invention adopts following technical scheme:
The pre-treatment processing method that regenerated celulose fibre and BLENDED FABRIC washing shrinkage thereof control, comprises singeing, boiling, bleaching process; Described singeing is rolled and is put out a fire containing diastatic water after grey cloth leaves burner, wraps, stacking at room temperature after loose formula cropping with plastic sheeting; Described boiling comprises: washed by the fabric of heap postpone of singing, after padding kiering working solution, and decatize of banking up, then wash, loose formula cropping; Described bleaching process comprises: the cloth after kiering is rolled bleaching working solution, then washes oven dry, loose formula cropping.
In singeing, stacking at room temperature time 2-6h, amylase consumption is 2-10g/L.
The formula of kiering working solution is: 0-15g/L NaOH, 5-15g/L scouring agent, 4-10g/L bleeding agent.
Boiling is banked up time 60-80min, and temperature is 102 ~ 104 DEG C.
Bleaching Working solution prescription is: 3-6g/L 100% hydrogen peroxide, 12-20g/L hydrogen peroxide stabilizer, 6-15g/L bleeding agent.
Bleaching process is banked up time 30-60min, and temperature is 102-104 DEG C.
During pre-treatment, roll amylase after singing and bank up, be conducive to the fully expanded of slurry and decompose; First by grey cloth hot water wash and cold wash before kiering, like this can eccysis major part slurry.When then rolling kiering working solution, can reduce or not use alkali to carry out kiering.Because when having that comparatively polybase exists, fabric washing shrinkage can be made larger, powerfully to reduce, it is poorer that the dimensionally stable of fabric becomes.
General dyeing and finishing process, is all collection, namely in the process of fabric, all can receives tension force through broadwise, as warp-wise tractive force, and weft tension etc., and also these tension force are in most of the cases also along with wet and hot.Under the effect of these external conditions, can cause regenerated celulose fibre on microcosmic, show as macromolecular chain generation slippage, macroscopically showing as fabric through weft direction stretch, i.e. fabric generation size distortion, fabric dry after these stress can accumulate in fabric, after fabric runs into water, the hydrogen bond rupture before the illusion of original " stablizing " can make it due to the plastication of water, form hydrogen bond in new position and reach balance, macroscopically also showing as the shrink of fabric.
Therefore in dyeing and finishing process, need to reduce the tension force that each procedure brings to fabric, during this programme pre-treatment Shi Ge road cropping, all adopt cloth ship cropping to bank up, avoid using clot cropping or banking up.Adopt double-deck method of banking up when pre-treatment kiering and bleaching, be conducive to abundant kiering bleaching and avoid tension force.
By the performance of fiber self and useful the combining of the dyeing and finishing processing method of fabric, for regenerated celulose fibre under alkaline environment, the moisture expantion of fiber can be aggravated, fabric size is unstable, shrinks, and fabric also exists stronger External Force Acting in damp and hot process simultaneously, fabric generation deformation can be caused further, form internal stress, when again running into wet, can shrink.After the present invention adopts grey cloth to singe to terminate, directly roll amylase and carry out cold dome, reduce the consumption of caustic soda when boiling drift or do not add caustic soda, directly carrying out bleaching.In whole process, avoid collection, adopt loose formula to process as much as possible, more than comprehensive, washing shrinkage is controlled within-4%-+2% scope.
The invention has the beneficial effects as follows: the regenerated celulose fibre prepared by the inventive method and the washing shrinkage of BLENDED FABRIC low, controlled, fabric brute force is good, dimensionally stable.
Specific embodiment
Below in conjunction with embodiment the present invention done and describe in detail further, but the scope of protection of present invention is not limited to the scope that embodiment represents.
embodiment 1:
Grey cloth specification: 105 ' '/40 × 40/133 × 72, pure sky silk face fabric.The whole processing process of this pure textile fabric successively through singing, kiering, bleaching, pre-setting, stamp, evaporate the processing technology such as washing, tentering softness sizing, preshrunk.Wherein pre-treatment main technological steps is as follows:
1, singe: a positive and a negative is singed, speed of a motor vehicle 110m/min, squezzing is put out a fire, and wherein amylase-containing 2g/L in water, loose formula cropping is banked up to cloth ship.Then with plastic sheeting, grey cloth is built, stacking at room temperature 2 hours.
2, kiering: washed by the fabric of heap postpone, first hot water wash 2 groove, then cold wash 1 groove, then pad kiering working solution, liquid carrying rate is 70%, and bank up decatize 80min, and temperature is 104 DEG C, and then carry out 4 groove hot water wash, 1 groove cold wash, after squezzing, loose formula cropping is to holding cloth case.
Wherein kiering working solution composition:
NaOH 15g/L
Scouring agent 15g/L
Bleeding agent 10g/L
3, bleach: by the fabric after kiering through 1 groove cold wash, pad bleaching working solution after squezzing, liquid carrying rate is
70%, bank up decatize 60min, and temperature is 104 DEG C, and then carry out 4 groove hot water wash, 1 groove cold wash, eventually passes and dry rear loose formula cropping to cloth ship.
Wherein bleach working solution composition:
100% hydrogen peroxide 6g/L
Hydrogen peroxide stabilizer 20g/L
Bleeding agent 15g/L
4, the sample cloth after bleaching post-drying is carried out pre-setting, stamp, evaporates washing, the processing technology such as tentering soft sizing, preshrunk, finally obtain sky silk finished product fabric.In following process process, reduce each road tension force to the impact of fabric, to ensure the inherent index of finished product as far as possible.Finally recording washing shrinkage result is: warp-wise-2.3%, broadwise-3.1%.
embodiment 2:
Grey cloth specification: 106.5 ' '/40 × 40/133 × 76, pure viscose fabric.The whole processing process of this pure textile fabric successively through singing, kiering, bleaching, pre-setting, stamp, evaporate the processing technology such as washing, tentering softness sizing, preshrunk.Wherein pre-treatment main technological steps is as follows:
1, singe: a positive and a negative is singed, speed of a motor vehicle 110m/min, squezzing is put out a fire, and wherein amylase-containing 10g/L in water, loose formula cropping is banked up to cloth ship.Then with plastic sheeting, grey cloth is built, stacking at room temperature 6 hours.
2, kiering: washed by the fabric of heap postpone, first hot water wash 2 groove, then cold wash 1 groove, then pad kiering working solution, liquid carrying rate is 70%, and bank up decatize 60min, and temperature is 102 DEG C, and then carry out 4 groove hot water wash, 1 groove cold wash, after squezzing, loose formula cropping is to holding cloth case.
Wherein kiering working solution composition:
NaOH 0g/L
Scouring agent 5g/L
Bleeding agent 4g/L
3, bleach: by the fabric after kiering through 1 groove cold wash, pad bleaching working solution after squezzing, liquid carrying rate is
70%, bank up decatize 30min, and temperature is 102 DEG C, and then carry out 4 groove hot water wash, 1 groove cold wash, eventually passes and dry rear loose formula cropping to cloth ship.
Wherein bleach working solution composition:
100% hydrogen peroxide 3g/L
Hydrogen peroxide stabilizer 12g/L
Bleeding agent 6g/L
4, the sample cloth after bleaching post-drying is carried out pre-setting, stamp, evaporates washing, the processing technology such as tentering soft sizing, preshrunk, finally obtain sky silk finished product fabric.In following process process, reduce each road tension force to the impact of fabric, to ensure the inherent index of finished product as far as possible.Finally recording washing shrinkage result is: warp-wise-3.5%, broadwise-3.3%.
embodiment 3:
Grey cloth specification: 106 ' '/40 × 40/133 × 72, viscose glue model blended yarn woven fabric, viscose glue: model=70:30.The whole processing process of this pure textile fabric successively through singing, kiering, bleaching, pre-setting, stamp, evaporate the processing technology such as washing, tentering softness sizing, preshrunk.Wherein pre-treatment main technological steps is as follows:
1, singe: a positive and a negative is singed, speed of a motor vehicle 100m/min, squezzing is put out a fire, and wherein amylase-containing 6g/L in water, loose formula cropping is banked up to cloth ship.Then with plastic sheeting, grey cloth is built, stacking at room temperature 4 hours.
2, kiering: washed by the fabric of heap postpone, first hot water wash 2 groove, then cold wash 1 groove, then pad kiering working solution, liquid carrying rate is 70%, and bank up decatize 70min, and temperature is 102 DEG C, and then carry out 4 groove hot water wash, 1 groove cold wash, after squezzing, loose formula cropping is to holding cloth case.
Wherein kiering working solution composition:
NaOH 7g/L
Scouring agent 10g/L
Bleeding agent 7g/L
3, bleach: by the fabric after kiering through 1 groove cold wash, pad bleaching working solution after squezzing, liquid carrying rate is
70%, bank up decatize 45min, and temperature is 102 DEG C, and then carry out 4 groove hot water wash, 1 groove cold wash, eventually passes and dry rear loose formula cropping to cloth ship.
Wherein bleach working solution composition:
100% hydrogen peroxide 4.5g/L
Hydrogen peroxide stabilizer 16g/L
Bleeding agent 10g/L
4, the sample cloth after bleaching post-drying is carried out pre-setting, stamp, evaporates washing, the processing technology such as tentering soft sizing, preshrunk, finally obtain sky silk finished product fabric.In following process process, reduce each road tension force to the impact of fabric, to ensure the inherent index of finished product as far as possible.Finally recording washing shrinkage result is: warp-wise-2.8%, broadwise-3.5%.
Claims (6)
1. the pre-treatment processing method of a regenerated celulose fibre and the control of BLENDED FABRIC washing shrinkage thereof, comprise singeing, boiling, bleaching process, it is characterized in that: described singeing is rolled and put out a fire containing diastatic water after grey cloth leaves burner, wrap with plastic sheeting after pine formula cropping, stacking at room temperature; Described boiling comprises: washed by the fabric of heap postpone of singing, after padding kiering working solution, and decatize of banking up, then wash, loose formula cropping; Described bleaching process comprises: the cloth after kiering is rolled bleaching working solution, then washes oven dry, loose formula cropping.
2. the pre-treatment processing method of a kind of regenerated celulose fibre and the control of BLENDED FABRIC washing shrinkage thereof as claimed in claim 1, it is characterized in that, in singeing, stacking at room temperature time 2-6h, amylase consumption is 2-10g/L.
3. the pre-treatment processing method of a kind of regenerated celulose fibre and the control of BLENDED FABRIC washing shrinkage thereof as claimed in claim 1, it is characterized in that, the formula of kiering working solution is: 0-15g/L NaOH, 5-15g/L scouring agent, 4-10g/L bleeding agent.
4. the pre-treatment processing method that controls of a kind of regenerated celulose fibre and BLENDED FABRIC washing shrinkage thereof as claimed in claim 1, is characterized in that, boiling is banked up time 60-80min, and temperature is 102 ~ 104 DEG C.
5. the pre-treatment processing method of a kind of regenerated celulose fibre and the control of BLENDED FABRIC washing shrinkage thereof as claimed in claim 1, is characterized in that, bleaching Working solution prescription is: 3-6g/L 100% hydrogen peroxide, 12-20g/L hydrogen peroxide stabilizer, 6-15g/L bleeding agent.
6. the pre-treatment processing method that controls of a kind of regenerated celulose fibre and BLENDED FABRIC washing shrinkage thereof as claimed in claim 1, is characterized in that, bleaching process is banked up time 30-60min, and temperature is 102-104 DEG C.
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| CN104878508A (en) * | 2015-04-23 | 2015-09-02 | 江苏金太阳纺织科技有限公司 | Cotton and natural silk napped fabric and method for processing same |
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| CN110965338A (en) * | 2019-11-18 | 2020-04-07 | 江苏金太阳纺织科技股份有限公司 | Shrinkproof fabric and preparation method thereof |
| CN111676623A (en) * | 2020-06-04 | 2020-09-18 | 如皋市协和印染有限公司 | Pad dyeing environment-friendly washing and fading waterless dyeing process |
| CN113863033A (en) * | 2021-11-12 | 2021-12-31 | 石家庄市荣盛装饰用布有限公司 | Efficient less-water printing and dyeing process for wide bamboo fibers |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104878508A (en) * | 2015-04-23 | 2015-09-02 | 江苏金太阳纺织科技有限公司 | Cotton and natural silk napped fabric and method for processing same |
| CN107630364A (en) * | 2017-10-20 | 2018-01-26 | 浙江美欣达纺织印染科技有限公司 | A kind of natural shrinking skin texture fabric processing method |
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| CN110106649A (en) * | 2019-05-21 | 2019-08-09 | 杭州宙富染整有限公司 | A kind of fiber opening method of sea-island fibre textile |
| CN110106649B (en) * | 2019-05-21 | 2022-04-29 | 杭州宙富染整有限公司 | Opening method of sea-island fiber textile |
| CN110965338A (en) * | 2019-11-18 | 2020-04-07 | 江苏金太阳纺织科技股份有限公司 | Shrinkproof fabric and preparation method thereof |
| CN111676623A (en) * | 2020-06-04 | 2020-09-18 | 如皋市协和印染有限公司 | Pad dyeing environment-friendly washing and fading waterless dyeing process |
| CN113863033A (en) * | 2021-11-12 | 2021-12-31 | 石家庄市荣盛装饰用布有限公司 | Efficient less-water printing and dyeing process for wide bamboo fibers |
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Address after: 226314 Jiangsu city of Nantong province Tongzhou District Industrial Park building sun Zhihao Applicant after: JIANGSU GOLDSUN TEXTILE TECHNOLOGY CO., LTD. Address before: 226314 Jiangsu city of Nantong province Tongzhou District Industrial Park building sun Zhihao Applicant before: Goldsun Holding Group Co., Ltd. |
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