CN109914106A - A kind of shiinkproof finish method of wool fabric low strength loss - Google Patents
A kind of shiinkproof finish method of wool fabric low strength loss Download PDFInfo
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Abstract
The invention discloses a kind of shiinkproof finish methods of wool fabric low strength loss, belong to technical field of wool fabric dyeing and finishing.The present invention uses DCCA to carry out chlorination anti-shrinking to wool fabric first, wool fabric is successively immersed in chitosan finishing liquid and Cellulose nanocrystal solution again, and it carries out assembling 10~20 times, the shrinkproof of the wool fabric of processing significantly improves, herein, it is greatly reduced the strength loss of fabric, and the feel of wool fabric is preferable.
Description
Technical field
The present invention relates to a kind of shiinkproof finish methods of wool fabric low strength loss, belong to woolen dyeing and finishing processing technology
Field.
Background technique
Wool is a kind of natural protein fibre, deep by vast since it is soft, warming, well-pressed, is not easy the characteristic of pickup
The favor of consumer.But due to the particularity of wool self structure, i.e. fiber surface has scale layer, when wool rubs
When, the frictional resistance in forbidden lamella piece direction is bigger than suitable scale direction, to generate direction friction effect；In addition wool is excellent
Elasticity and crimpiness influence the style of fabric so that wool fabric can generate felting phenomenon because of external force in water-washing process
And dimensional stability, so that the feel of wool fabric is become coarse, wearability is decreased obviously.
For the shrinkproof for effectively improving wool, there is a large amount of document report for all kinds of modifications of wool both at home and abroad
Research, basic principle is all how to reduce direction friction effect.Currently, wool fabric shiinkproof finish method can be divided into subtraction and
Addition.Wherein, the subtractive processes anti-felting effect based on chlorination technique is preferable, common chlorination technique examination in industrial production at present
Agent has NaClO and DCCA (dichlorisocyanurate).They can be converted into HClO, promote in the solution of proper pH value
Scale layer oxydrolysis achievees the purpose that destroy scale layer to shrinkproof.But also containing a large amount of in the cortical layer of wool fiber
Cystine residue (- S-S-) and tyrosine residue, they can also occur to cause such as chemical reaction similar in scale with HClO
The destruction of cortex of wool deteriorates the physical mechanical property of wool.In addition to chloridising feld proofing, potassium permanganate, peroxide
Change the various oxidants such as hydrogen and be also used for preventing felting and shrinking of wood fabric, but also all there is the big problem of fabric strength damage after arrangement.
Each quasi polymer is mainly applied to wool surfaces by addition felt proofing technique, on the one hand plays covering wool scale
Layer reduces direction friction effect effect；On the other hand, fiber is bonded together by polymer film, cannot be arbitrarily moved, and
Obtain anti-felting effect.Addition shrinkproofing treatment is by padding or impregnation method applies polymer and in fiber surface and is solidified into
Film, often fiber surface formed relatively thick coating, seriously affect the feel of wool, furthermore to wool fabric style, anti-stain characteristic,
Waterproofness, color etc. have certain influence.
Summary of the invention
[technical problem]
Solve the problems, such as that fabric strength damages big after arranging present in above-mentioned chlorination shrink-resistant finish.
[technical solution]
The present invention provides a kind of anti-based on the low strong damage of self-assembly chitosan-Cellulose nanocrystal joint enhancing wool fabric
Felting finishing technique, it is intended to while improving Wool fabric anti-felting performance, reduce and fabric strength is damaged, and improve fabric
Feel and wettability.
Specifically, the technical scheme is that, a kind of shiinkproof finish method of wool fabric low strength loss, the side
Method are as follows:
By after superchlorination shrinkproofing treatment wool fabric or wool fiber be immersed in 5-10g/L chitosan finishing liquid
Then wool fabric or wool fiber is washed with water in 1-5min, then be immersed in 1-5min in 1-5g/L Cellulose nanocrystal solution, so
After wool fabric or wool fiber is washed with water, be repeated in again later respectively in chitosan finishing liquid and Cellulose nanocrystal solution
The process of middle dipping repeats self assembly program 10-20 times, takes out, and dries after wool fabric or wool fiber are washed with water.
In one embodiment of the invention, wool fabric or wool fiber are immersed in chitosan finishing liquid or cellulose
Bath raio in nanocrystal solution is 1:25-1:50.
In one embodiment of the invention, the method for the chlorination shrinkproofing treatment are as follows: by wool fabric or wool
Fiber be placed in containing 1-5wt% dichlorisocyanurate (DCCA), 1-3g/L penetrating agent JFC chlorinated solution in, chlorine at room temperature
Change processing 20-40min, then wool fabric or wool fiber are placed in the reducing agent solution that concentration is 4-8wt% at 30-50 DEG C
Wool fabric is finally placed in the alkaline solution of pH 8~9 by dechlorination 10-30min, at 30-50 DEG C in and 10-30min.
In one embodiment of the invention, the pH of the chlorinated solution is 3~6.
In one embodiment of the invention, in the chlorination shrinkproofing treatment, in chlorination, dechlorination or N-process
Bath raio is 1:25-1:50.
In one embodiment of the invention, the preferred DCCA concentration of the chlorinated solution is 3wt%, and penetrating agent JFC is
1g/L, room temperature handles 20-40min at pH 4.
In one embodiment of the invention, the reducing agent is NaHSO3, sodium sulfite, sodium dithionite etc. also
Former agent, the concentration of reducing agent are preferably 6wt%.
In one embodiment of the invention, the alkaline solution is sodium bicarbonate solution, sodium carbonate liquor, hydroxide
One or more of sodium solution or sodium citrate solution.
In one embodiment of the invention, the pH of the chitosan finishing liquid is 5-6.
In one embodiment of the invention, the concentration of chitosan is preferably 5g/L in the chitosan finishing liquid.
In one embodiment of the invention, the concentration of the Cellulose nanocrystal solution is preferably 2g/L.
In one embodiment of the invention, the length of the Cellulose nanocrystal is 50-200nm, diameter 5-
20nm。
In one embodiment of the invention, the self assembly number is preferably 10-15 times
In one embodiment of the invention, the temperature of the drying is 80-100 DEG C, and the time of drying is 10-
20min。
The present invention also provides a kind of wool low strength loss feld proofing liquid, the finishing fluid includes A liquid, B liquid, C
Liquid, D liquid, E liquid, wherein A liquid is the chlorinated solution containing 1-5wt% dichlorisocyanurate DCCA, 1-3g/L penetrating agent JFC,
B liquid is the reducing agent solution that concentration is 4-8wt%, and C liquid is the alkaline solution of pH 8~9, and D liquid is 5-10g/L chitosan finishing
Liquid, E liquid are 1-5g/L Cellulose nanocrystal solution；The reducing agent is sodium hydrogensulfite, sodium sulfite or sodium dithionite
One or more of, alkaline solution is in sodium bicarbonate solution, sodium carbonate liquor, sodium hydroxide solution or sodium citrate solution
One or more.
The present invention also provides the application methods of above-mentioned wool low strength loss feld proofing liquid, which is characterized in that institute
State method are as follows: wool fabric or wool fiber are placed in A liquid and handle 20-40min, then by wool fabric or wool fiber in B
In liquid under conditions of 30-50 DEG C dechlorination 10-30min, wool fabric or wool fiber are placed in C liquid later, at 30-50 DEG C
Lower neutralization 10-30min, by after superchlorination shrinkproofing treatment wool fabric or wool fiber 1-5min, water are impregnated in D liquid
It washes, then impregnates 1-5min in E liquid, wash, repeat to impregnate 10~20 times in D liquid and E liquid, be dried after washing.
In one embodiment of the invention, it is 1:25- that wool fabric or wool fiber, which are immersed in the bath raio in A-E liquid,
1:50。
It is that the present invention obtains the utility model has the advantages that
(1) shrinkproof improves: on the one hand, the HClO generated in chlorination shrinkproofing treatment can make scale layer and its outer layer
The hydrolysis of hydrophobic lipid structure, reaches a certain level the purpose for destroying scale layer；On the other hand, positively charged chitosan and with negative
The Cellulose nanocrystal of electricity can form natural polymer thin layer, limitation in wool surface by layer upon layer electrostatic self assembly processing
Interfibrous Relative sliding can also reduce the felting rate of fabric.In addition, the thin layer polymerize relative to traditional dipping or padding method
Object coating, polymer applied amount is small, influences on fabric feeling smaller.
(2) " reparation " fabric strength damages: on the one hand, the present invention first carries out chlorination " subtraction " shrinkproofing treatment, certain journey
Degree destroys wool surfaces scale, though shrinkproof improves, fabric strength is caused to decline.On the other hand, Cellulose nanocrystal
With characteristics such as high-crystallinity, high elastic modulus, high intensity, it is a kind of polyhydroxy reinforcing filler, is prepared by sulphuric acid hydrolysis
Negative electrical charge can be taken because generating sulfonic acid group in the process, it, can be in sheep with positively charged chitosan by electrostatic self-assembled
Wool fibre surface forms the natural polymer thin layer with preferable obdurability；In addition, Cellulose nanocrystal biggish compares table with its
The a large amount of hydroxyl of area and surface can form tridimensional network by hydrogen bond with chitosan molecule, pass through the side of LBL self-assembly
Formula further enhances film forming and intensity of the chitosan on wool fiber host material, makes up fabric strength damage to play
Effect.
Specific embodiment
The embodiment that the present invention is further explained in conjunction with the embodiments.It is below only further implementation content of the invention,
The present invention includes but is not limited to this.
Argali wool fabric used is worsted wool fabric in embodiment.Wherein, fabric felting rate is 22.9%, warp direction stretching
Ultimate strength is 405N.
Embodiment 1
A kind of low strong damage shiinkproof finish method of wool fabric, comprising the following steps:
(1) wool fabric is placed in 3wt% dichlorisocyanurate (DCCA), 1g/L penetrating agent JFC, bath with bath raio 1:25
In solution (pH 4) than 1:25 room temperature handle 30min, then by fabric with bath raio 1:25 in 6wt% sodium hydrogensulfite (NaHSO3)
In solution under conditions of 40 DEG C dechlorination 20min, wool fabric is finally placed in the NaHCO of pH 8~93In solution, at 40 DEG C
Lower neutralization 20min.
(2) step (1) processed wool fabric is first impregnated into 5g/L chitosan finishing liquid (bath raio 1:50) 5min, water
It washes, then impregnates 5min in 1g/L Cellulose nanocrystal solution (bath raio 1:50), washing is repeated in whole in chitosan again later
The process impregnated in reason liquid and Cellulose nanocrystal solution, repeats altogether the self assembly program 10 times, 100 DEG C of drying 10min.
When the concentration of the Cellulose nanocrystal solution in step (2) is respectively 3g/L or 5g/L, after the same method
Wool fabric is arranged.
Arrangement is knitted according to the washing standard of International Wool Secretariat's TM31 wool spinning product and standard GB/T 3923.1-2013
The felting rate and tensile break strength of object are tested, and test result is shown in Table 1.
Embodiment 2
A kind of low strong damage shiinkproof finish method of wool fabric, comprising the following steps:
(1) by wool fabric be placed in 3wt% dichlorisocyanurate (DCCA), 1g/L penetrating agent JFC, bath raio 1:25 it is molten
Room temperature handles 30min in liquid (pH 4), then by fabric in 6wt% sodium hydrogensulfite (NaHSO3) in solution (bath raio 1:25) 40
Wool fabric is finally placed in the NaHCO of pH 8~9 by dechlorination 20min under conditions of DEG C3In solution, at 40 DEG C in and
20min。
(2) step (1) processed wool fabric is first impregnated into 5g/L chitosan finishing liquid (bath raio 1:50) 5min, water
It washes, then impregnates 5min in 2g/L Cellulose nanocrystal solution (bath raio 1:50), washing is repeated in whole in chitosan again later
The process impregnated in reason liquid and Cellulose nanocrystal solution, repeats altogether the self assembly program 1,5,10,15,20 time, 100 DEG C of bakings
Dry 10min.
Arrangement is knitted according to the washing standard of International Wool Secretariat's TM31 wool spinning product and standard GB/T 3923.1-2013
The felting rate and tensile break strength of object are tested, and test result is shown in Table 1.
Embodiment 3
A kind of low strong damage shiinkproof finish method of wool fabric, comprising the following steps:
(1) by wool fabric be placed in 3wt% dichlorisocyanurate (DCCA), 1g/L penetrating agent JFC, bath raio 1:25 it is molten
Room temperature handles 30min in liquid (pH 4), then by fabric in 6wt% sodium hydrogensulfite (NaHSO3) in solution (bath raio 1:25) 40
Wool fabric is finally placed in the NaHCO of pH 8~9 by dechlorination 20min under conditions of DEG C3In solution, at 40 DEG C in and
20min。
(2) step (1) processed wool fabric is first impregnated into 10g/L chitosan finishing liquid (bath raio 1:50) 5min, water
It washes, 5min is impregnated in 2g/L Cellulose nanocrystal solution (bath raio 1:50), washing is repeated in again in chitosan finishing later
The process impregnated in liquid and Cellulose nanocrystal solution, repeats altogether the self assembly program 10 times, 100 DEG C of drying 10min.
Arrangement is knitted according to the washing standard of International Wool Secretariat's TM31 wool spinning product and standard GB/T 3923.1-2013
The felting rate and tensile break strength of object are tested, and test result is shown in Table 1.
Embodiment 4
A kind of low strong damage shiinkproof finish method of wool fabric, comprising the following steps:
(1) by wool fabric be placed in 3wt% dichlorisocyanurate (DCCA), 1g/L penetrating agent JFC, bath raio 1:25 it is molten
Room temperature handles 30min in liquid (pH 4), then by fabric in 6wt% sodium hydrogensulfite (NaHSO3) in solution (bath raio 1:25) 40
Wool fabric is finally placed in the NaHCO of pH 8~9 by dechlorination 20min under conditions of DEG C3In solution, at 40 DEG C in and
20min。
(2) step (1) processed wool fabric is first impregnated into 5g/L chitosan finishing liquid (bath raio 1:50) 5min, water
It washes, then impregnates 5min in 3g/L Cellulose nanocrystal solution (bath raio 1:50), washing is repeated in whole in chitosan again later
The process impregnated in reason liquid and Cellulose nanocrystal solution, repeats altogether the self assembly program 15 times, 100 DEG C of drying 10min.
Arrangement is knitted according to the washing standard of International Wool Secretariat's TM31 wool spinning product and standard GB/T 3923.1-2013
The felting rate and tensile break strength of object are tested, and test result is shown in Table 1.
Embodiment 5
A kind of low strong damage shiinkproof finish method of wool fabric, comprising the following steps:
(1) by wool fabric be placed in 3wt% dichlorisocyanurate (DCCA), 1g/L penetrating agent JFC, bath raio 1:25 it is molten
Room temperature handles 30min in liquid (pH 4), then by fabric in 6wt% sodium hydrogensulfite (NaHSO3) in solution (bath raio 1:25) 40
Wool fabric is finally placed in the NaHCO of pH 8~9 by dechlorination 20min under conditions of DEG C3In solution, at 40 DEG C in and
20min。
(2) step (1) processed wool fabric is first impregnated into 5g/L chitosan finishing liquid (bath raio 1:50) 5min, water
It washes, then impregnates 5min in 5g/L Cellulose nanocrystal solution, wash, be repeated in again later in chitosan finishing liquid and fiber
The process impregnated in plain nanocrystal solution, repeats altogether the self assembly program 20 times, 100 DEG C of drying 10min.
Arrangement is knitted according to the washing standard of International Wool Secretariat's TM31 wool spinning product and standard GB/T 3923.1-2013
The felting rate and tensile break strength of object are tested, and test result is shown in Table 1.
Embodiment 6
A kind of low strong damage shiinkproof finish method of wool fabric, comprising the following steps:
(1) by wool fabric be placed in 5wt% dichlorisocyanurate (DCCA), 3g/L penetrating agent JFC, bath raio 1:25 it is molten
In liquid (pH 4) room temperature handle 20min, then by fabric in 8wt% sodium sulfite solution (bath raio 1:25) under conditions of 40 DEG C
Wool fabric is finally placed in the NaHCO of pH 8~9 by dechlorination 20min3In solution, at 40 DEG C in and 20min.
(2) step (1) processed wool fabric is first impregnated into 5g/L chitosan finishing liquid (bath raio 1:50) 5min, water
It washes, then impregnates 5min in 2g/L Cellulose nanocrystal solution, wash, be repeated in again later in chitosan finishing liquid and fiber
The process impregnated in plain nanocrystal solution, repeats altogether the self assembly program 10 times, 100 DEG C of drying 10min.
Arrangement is knitted according to the washing standard of International Wool Secretariat's TM31 wool spinning product and standard GB/T 3923.1-2013
The felting rate and tensile break strength of object are tested, and test result is shown in Table 1.
Comparative example 1
A kind of low strong damage shiinkproof finish method of wool fabric, comprising the following steps:
Wool fabric is placed in the solution of 3wt% dichlorisocyanurate (DCCA), 1g/L penetrating agent JFC, bath raio 1:25
Room temperature handles 30min in (pH 4), then by fabric in 6wt% sodium hydrogensulfite (NaHSO3) in solution (bath raio 1:25) at 40 DEG C
Under conditions of dechlorination 20min, wool fabric is finally placed in the NaHCO of pH 8~93In solution, at 40 DEG C in and 20min.
And according to the washing standard of International Wool Secretariat's TM31 wool spinning product and standard GB/T 3923.1-2013 to the felt of finish fabric
Shrinkage and tensile break strength are tested, and test result is shown in Table 1.
Comparative example 2
A kind of low strong damage shiinkproof finish method of wool fabric, comprising the following steps:
(1) wool fabric is placed in the solution of 3% dichlorisocyanurate (DCCA), 1g/L penetrating agent JFC, bath raio 1:25
Room temperature handles 30min in (pH 4), then by fabric in 6% sodium hydrogensulfite (NaHSO4) in solution (bath raio 1:25) at 40 DEG C
Under the conditions of dechlorination 20min, wool fabric is finally placed in the NaHCO of pH 8~93In solution, at 40 DEG C in and 20min.
(2) step (1) processed wool fabric is first impregnated into 5g/L chitosan finishing liquid (bath raio 1:50) 50min, water
It washes, 100 DEG C of drying 10min.
Arrangement is knitted according to the washing standard of International Wool Secretariat's TM31 wool spinning product and standard GB/T 3923.1-2013
The felting rate and tensile break strength of object are tested, and test result is shown in Table 1.
Comparative example 3
A kind of low strong damage shiinkproof finish method of wool fabric, comprising the following steps:
(1) wool fabric is placed in the solution of 3% dichlorisocyanurate (DCCA), 1g/L penetrating agent JFC, bath raio 1:25
Room temperature handles 30min in (pH 4), then by fabric in 6% sodium hydrogensulfite (NaHSO4) in solution (bath raio 1:25) at 40 DEG C
Under the conditions of dechlorination 20min, wool fabric is finally placed in the NaHCO of pH 8~93In solution, at 40 DEG C in and 20min.
(2) by step (1) processed wool fabric with the modified fibre of bath raio 1:50 dipping 5g/L chitosan and 2g/L
50min in the nanocrystalline finishing fluid of element, washing, 100 DEG C of drying 10min.
Wherein, it is that enzyme process changes under laccase/TEMPO system by Cellulose nanocrystal that the modified cellulose is nanocrystalline
Property, then that the cationized cellulose being prepared is reacted with Rene Girard spy's reagent T is nanocrystalline.
Arrangement is knitted according to the washing standard of International Wool Secretariat's TM31 wool spinning product and standard GB/T 3923.1-2013
The felting rate and tensile break strength of object are tested, and test result is shown in Table 1.
The performance of wool fabric after the different shrinkproofing treatments of table 1
Although the present invention has been described by way of example and in terms of the preferred embodiments, it is not intended to limit the invention, any to be familiar with this skill
The people of art can do various change and modification, therefore protection model of the invention without departing from the spirit and scope of the present invention
Enclosing subject to the definition of the claims.
Claims (10)
1. a kind of shiinkproof finish method of wool fabric low strength loss, which is characterized in that will be after superchlorination shrinkproofing treatment
Wool fabric or wool fiber be immersed in 1-5min in 5-10g/L chitosan finishing liquid, wool fabric or sheep is then washed with water
Wool fibre, then it is immersed in 1-5min in 1-5g/L Cellulose nanocrystal solution, wool fabric or wool fiber is then washed with water, it
It is repeated in the process impregnated in chitosan finishing liquid and Cellulose nanocrystal solution again afterwards, repeats 10~20 times, by wool
Fabric or wool fiber are dried after being washed with water.
2. a kind of shiinkproof finish method of wool fabric low strength loss according to claim 1, which is characterized in that described
The method of chlorination shrinkproofing treatment are as follows: wool fabric or wool fiber are placed in the DCCA of dichlorisocyanurate containing 1-5wt%, 1-
Chlorination is carried out in the chlorinated solution of 3g/L penetrating agent JFC and handles 20-40min, then wool fabric or wool fiber are placed in concentration
For in the reducing agent solution of 4-8wt% under conditions of 30-50 DEG C dechlorination 10-30min, finally by wool fabric or wool fiber
Be placed in the alkaline solution of pH 8~9, at 30-50 DEG C in and 10-30min.
3. a kind of shiinkproof finish method of wool fabric low strength loss according to claim 2, which is characterized in that described
The pH of chlorinated solution is 3~6.
4. a kind of shiinkproof finish method of wool fabric low strength loss according to claim 2 or 3, which is characterized in that
The reducing agent is one or more of sodium hydrogensulfite, sodium sulfite or sodium dithionite.
5. according to a kind of shiinkproof finish method of any wool fabric low strength loss of claim 2~4, feature exists
In, the alkaline solution be one of sodium bicarbonate solution, sodium carbonate liquor, sodium hydroxide solution or sodium citrate solution or
It is several.
6. a kind of shiinkproof finish method of any wool fabric low strength loss, feature exist according to claim 1~5
In the pH of the chitosan finishing liquid is 5-6.
7. a kind of shiinkproof finish method of any wool fabric low strength loss arranges to obtain according to claim 1~6
Wool fabric or wool fiber.
8. the clothing containing wool fabric as claimed in claim 7 or wool fiber.
9. a kind of wool low strength loss feld proofing liquid, which is characterized in that the finishing fluid includes A liquid, B liquid, C liquid, D
Liquid, E liquid, wherein A liquid is the chlorinated solution containing 1-5wt% dichlorisocyanurate DCCA, 1-3g/L penetrating agent JFC, B liquid
The reducing agent solution for being 4-8wt% for concentration, C liquid are the alkaline solution of pH 8~9, and D liquid is 5-10g/L chitosan finishing liquid, E
Liquid is 1-5g/L Cellulose nanocrystal solution；The reducing agent is in sodium hydrogensulfite, sodium sulfite or sodium dithionite
One or more, alkaline solution are one in sodium bicarbonate solution, sodium carbonate liquor, sodium hydroxide solution or sodium citrate solution
Kind is several.
10. the application method of wool low strength loss feld proofing liquid as claimed in claim 9, which is characterized in that the side
Method are as follows: wool fabric or wool fiber are placed in A liquid and handle 20-40min, then by wool fabric or wool fiber in B liquid
Wool fabric or wool fiber, are placed in C liquid by dechlorination 10-30min under conditions of 30-50 DEG C later, at 30-50 DEG C in
And 10-30min, by after superchlorination shrinkproofing treatment wool fabric or wool fiber impregnate 1-5min in D liquid, wash,
1-5min is impregnated in E liquid again, is washed, repeats to impregnate 10~20 times in D liquid and E liquid, be dried after washing.
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| CN111411508A (en) * | 2020-05-21 | 2020-07-14 | 中国农业科学院兰州畜牧与兽药研究所 | Clean wool with strong anti-felting property and manufacturing method thereof |
| CN115679680A (en) * | 2022-11-11 | 2023-02-03 | 江南大学 | Preparation method of high-whiteness shrink-proof wool fabric |
| CN116024760A (en) * | 2023-02-02 | 2023-04-28 | 上海嘉麟杰纺织科技有限公司 | Auxiliary tool for tie-dyeing of bamboo joint patterns of ready-made wool clothing and tie-dyeing method of bamboo joint patterns of ready-made wool clothing |
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