CN110791960A - Stiffening agent for denim fabric - Google Patents
Stiffening agent for denim fabric Download PDFInfo
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- CN110791960A CN110791960A CN201911159955.0A CN201911159955A CN110791960A CN 110791960 A CN110791960 A CN 110791960A CN 201911159955 A CN201911159955 A CN 201911159955A CN 110791960 A CN110791960 A CN 110791960A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/327—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof
- D06M15/333—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof of vinyl acetate; Polyvinylalcohol
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/73—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof
- D06M11/74—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof with carbon or graphite; with carbides; with graphitic acids or their salts
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/207—Substituted carboxylic acids, e.g. by hydroxy or keto groups; Anhydrides, halides or salts thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
- D06M15/03—Polysaccharides or derivatives thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
- D06M15/03—Polysaccharides or derivatives thereof
- D06M15/11—Starch or derivatives thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/53—Polyethers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a stiffening agent for jean fabric, which consists of polyvinyl alcohol emulsion, polyurethane emulsion, a composite additive and a buffer solution, wherein the weight parts of the components are as follows: 60-65 parts of polyvinyl alcohol emulsion, 30-35 parts of polyurethane emulsion, 7-10 parts of composite additive and 1-1.5 parts of buffer solution. The stiffening agent can obviously improve the three-dimensional effect of the crumpling treatment of the denim, improves the qualities of the denim such as washability, strength and the like, enables the treatment effect to be more durable, and the fabric to have soft hand feeling and good qualities of color and luster, color and the like.
Description
Technical Field
The invention belongs to the technical field of garment fabric processing, and particularly relates to a stiffening agent for denim fabric.
Background
The jean fabric is one of the common fabrics worn by people in daily life, and is widely used in different types of clothes due to the advantages of fashion style, wear resistance, washability and the like. At present, people have various processing and treating modes for jean fabric, for example, a three-dimensional crumpling treatment which is popular in several years, specifically, flat and round natural crumples generated in the clothes taking process are arranged at the parts of a trouser leg, a trouser body and the like of the clothes, the crumpling form is stabilized, and the style is popular with consumers because of nature, novelty and fashion because the style is like cat whiskers, also called three-dimensional cat whisker crumpling treatment.
The jean crumpling finishing process has gradually become one of the most conventional processes in the jean water washing industry. The effect of the method is to improve the elasticity recovery performance of jeans after the jeans are crumpled by the resin finishing liquid, so that the crease resistance performance of jeans is improved, the three-dimensional effect and the durability of the crumpled cat whiskers and 3D cat whiskers are endowed to the jeans, the bottom protection performance and the dry-wet friction fastness of the jeans are improved, and the grade of the jeans is improved. In the resin finishing liquid formula of the jean crumpled cat whiskers and the 3D three-dimensional cat whiskers, the addition of the stiffening agent is indispensable and extremely important.
As stiffening agents on the market at present, there are often used: acrylic acid and acrylate emulsion stiffening agents. The jean clothes treated by the resin finishing liquid with the stiffening agent have good stereoscopic effect and bottom-keeping performance of the cat whiskers, but have poor elasticity and over-hard hand feeling. The jean clothes also have relatively good hand feeling after being treated by the resin finishing liquid with the stiffening agent by using the polyvinyl acetate emulsion or the PVA emulsion as the stiffening agent, but the cat whiskers have a defect in three-dimensional effect.
Therefore, in order to improve the competitive power of jean products and meet the increasing fashion clothing needs of people, a stiffening agent which not only improves the elasticity of jean fabrics and the crumpling three-dimensional effect, but also has better bottom-protecting performance, soft hand feeling and reduces the loss of strong tearing force and the improvement of the cloth cover glossiness is a urgent priority in the industry! Thereby improving the competitive power of jean products and meeting the increasing fashion clothing needs of people.
Disclosure of Invention
The invention aims to provide a stiffening agent for denim fabric, aiming at the existing problems.
The invention is realized by the following technical scheme:
a stiffening agent for jean fabric consists of polyvinyl alcohol emulsion, polyurethane emulsion, a composite additive and a buffer solution, wherein the weight parts of the components are as follows: 60-65 parts of polyvinyl alcohol emulsion, 30-35 parts of polyurethane emulsion, 7-10 parts of composite additive and 1-1.5 parts of buffer solution.
Furthermore, the solid content of the polyvinyl alcohol emulsion is 10-15%.
Further, the solid content of the polyurethane emulsion is 20-25%.
Further, the composite additive is composed of the following substances in parts by weight: 4-6 parts of chitosan, 1-3 parts of sodium pyrophosphate, 1-1.5 parts of citric acid, 4-7 parts of graphite powder, 3-6 parts of nonylphenol polyoxyethylene ether, 3-5 parts of cationic starch and 50-55 parts of deionized water.
Further, the graphite powder is subjected to surface modification treatment, and the specific operation is as follows: and (3) putting graphite powder into a proton irradiation treatment box for irradiation treatment, taking out the graphite powder after the irradiation treatment, immersing the graphite powder into a silane coupling agent solution for soaking treatment for 20-25 min, and finally taking out the graphite powder for vacuum drying treatment.
Further, the output energy in the proton irradiation treatment box is controlled to be 90-100 keV during irradiation treatment.
Further, the mass fraction of solute in the silane coupling agent solution is 20-25%; the silane coupling agent solution is a silane coupling agent aqueous solution or a titanate coupling agent aqueous solution.
Further, the temperature in the vacuum drying oven is controlled to be 85-90 ℃ during vacuum drying treatment.
Further, the buffer solution is composed of the following substances in parts by weight: 2-4 parts of acetic acid, 4-6 parts of sodium acetate and 18-20 parts of water.
The invention reasonably selects and mixes the raw material components of the stiffening agent, wherein two emulsions of polyvinyl alcohol emulsion and polyurethane emulsion are selected for mixing and mixing, the film formation of the polyvinyl alcohol emulsion has good affinity and adhesiveness to the denim fabric fiber, the film formation of the polyurethane emulsion has good durability, strength, rebound resilience and the like, the two emulsions can ensure the three-dimensional sense of the denim after being pressed and wrinkled and also can ensure the good quality of flexibility, strength and the like after being mixed, in order to further enhance the durability of the treatment, composite additive components are also added, the composite additive can further enhance the adhesion stability of the stiffening agent on the denim fabric, the surface performance of the treated graphite powder is good, the dispersion performance is good, the bonding strength between the graphite powder and the film layer and the fiber is high, and the stiffening agent can be compounded with the two emulsion films into a more complex and stable cross-linked network tissue by matching the use of chitosan and cationic starch, obviously improves the treatment effect and the mechanical quality of the denim.
Compared with the prior art, the invention has the following advantages:
the stiffening agent can obviously improve the three-dimensional effect of the crumpling treatment of the denim, improves the qualities of the denim such as washability, strength and the like, ensures that the treatment effect is more durable, has soft hand feeling of the fabric, has good qualities of color, luster and the like, and has strong market competitiveness and use value.
Detailed Description
A stiffening agent for jean fabric consists of polyvinyl alcohol emulsion, polyurethane emulsion, a composite additive and a buffer solution, wherein the weight parts of the components are as follows: 60-65 parts of polyvinyl alcohol emulsion, 30-35 parts of polyurethane emulsion, 7-10 parts of composite additive and 1-1.5 parts of buffer solution; wherein the solid content of the polyvinyl alcohol emulsion is 10-15%; the solid content of the polyurethane emulsion is 20-25%; the composite additive is composed of the following substances in parts by weight: 4-6 parts of chitosan, 1-3 parts of sodium pyrophosphate, 1-1.5 parts of citric acid, 4-7 parts of graphite powder, 3-6 parts of nonylphenol polyoxyethylene ether, 3-5 parts of cationic starch and 50-55 parts of deionized water; the buffer solution consists of the following substances in parts by weight: 2-4 parts of acetic acid, 4-6 parts of sodium acetate and 18-20 parts of water.
The polymerization degree of polyvinyl alcohol in the polyvinyl alcohol emulsion is 1600-1800, and the alcoholysis degree is 99.5%.
In order to further enhance the use effect of the stiffening agent, the added graphite powder is subjected to surface modification treatment in the compatibility use of the composite additive, and the specific operations are as follows: and (3) putting graphite powder into a proton irradiation treatment box for irradiation treatment, taking out the graphite powder after the irradiation treatment, immersing the graphite powder into a silane coupling agent solution for soaking treatment for 20-25 min, and finally taking out the graphite powder for vacuum drying treatment. Wherein the output energy in the proton irradiation treatment box is controlled to be 90-100 keV during irradiation treatment; the mass fraction of solute in the silane coupling agent solution is 20-25%; the silane coupling agent solution is a silane coupling agent aqueous solution or a titanate coupling agent aqueous solution; and during vacuum drying treatment, the temperature in the vacuum drying oven is controlled to be 85-90 ℃.
In order to further illustrate the present invention, the following experimental examples are given below.
Example 1
A stiffening agent for jean fabric consists of polyvinyl alcohol emulsion, polyurethane emulsion, a composite additive and a buffer solution, wherein the weight parts of the components are as follows: 60 parts of polyvinyl alcohol emulsion, 30 parts of polyurethane emulsion, 7 parts of composite additive and 1 part of buffer solution; wherein the solid content of the polyvinyl alcohol emulsion is 10 percent; the solid content of the polyurethane emulsion is 20 percent; the composite additive is composed of the following substances in parts by weight: 4 parts of chitosan, 1 part of sodium pyrophosphate, 1 part of citric acid, 4 parts of graphite powder, 3 parts of nonylphenol polyoxyethylene ether, 3 parts of cationic starch and 50 parts of deionized water; the buffer solution consists of the following substances in parts by weight: 2 parts of acetic acid, 4 parts of sodium acetate and 18 parts of water.
The polymerization degree of polyvinyl alcohol in the polyvinyl alcohol emulsion is 1600, and the alcoholysis degree is 99.5%.
In order to further enhance the use effect of the stiffening agent, the added graphite powder is subjected to surface modification treatment in the compatibility use of the composite additive, and the specific operations are as follows: and (3) putting graphite powder into a proton irradiation treatment box for irradiation treatment, taking out the graphite powder after the irradiation treatment, immersing the graphite powder into a silane coupling agent solution for soaking treatment for 20min, and finally taking out the graphite powder for vacuum drying treatment. Wherein the output energy in the proton irradiation treatment box is controlled to be 90keV during the irradiation treatment; the mass fraction of solute in the silane coupling agent solution is 20%; the silane coupling agent solution is a silane coupling agent aqueous solution; and the temperature in the vacuum drying box is controlled to be 85 ℃ during the vacuum drying treatment.
Example 2
A stiffening agent for jean fabric consists of polyvinyl alcohol emulsion, polyurethane emulsion, a composite additive and a buffer solution, wherein the weight parts of the components are as follows: 63 parts of polyvinyl alcohol emulsion, 32 parts of polyurethane emulsion, 9 parts of composite additive and 1.3 parts of buffer solution; wherein the solid content of the polyvinyl alcohol emulsion is 12 percent; the solid content of the polyurethane emulsion is 22 percent; the composite additive is composed of the following substances in parts by weight: 5 parts of chitosan, 2 parts of sodium pyrophosphate, 1.3 parts of citric acid, 6 parts of graphite powder, 5 parts of nonylphenol polyoxyethylene ether, 4 parts of cationic starch and 51 parts of deionized water; the buffer solution consists of the following substances in parts by weight: 3 parts of acetic acid, 5 parts of sodium acetate and 19 parts of water.
The polymerization degree of the polyvinyl alcohol in the polyvinyl alcohol emulsion is 1760, and the alcoholysis degree is 99.5%.
In order to further enhance the use effect of the stiffening agent, the added graphite powder is subjected to surface modification treatment in the compatibility use of the composite additive, and the specific operations are as follows: and (3) putting graphite powder into a proton irradiation treatment box for irradiation treatment, taking out the graphite powder after the irradiation treatment, immersing the graphite powder into a silane coupling agent solution for soaking treatment for 23min, and finally taking out the graphite powder for vacuum drying treatment. Wherein the output energy in the proton irradiation treatment box is controlled to be 96keV during the irradiation treatment; the mass fraction of solute in the silane coupling agent solution is 22%; the silane coupling agent solution is a silane coupling agent aqueous solution; and during the vacuum drying treatment, the temperature in the vacuum drying oven is controlled to be 88 ℃.
Example 3
A stiffening agent for jean fabric consists of polyvinyl alcohol emulsion, polyurethane emulsion, a composite additive and a buffer solution, wherein the weight parts of the components are as follows: 65 parts of polyvinyl alcohol emulsion, 35 parts of polyurethane emulsion, 10 parts of composite additive and 1.5 parts of buffer solution; wherein the solid content of the polyvinyl alcohol emulsion is 15 percent; the solid content of the polyurethane emulsion is 25 percent; the composite additive is composed of the following substances in parts by weight: 6 parts of chitosan, 3 parts of sodium pyrophosphate, 1.5 parts of citric acid, 7 parts of graphite powder, 6 parts of nonylphenol polyoxyethylene ether, 5 parts of cationic starch and 55 parts of deionized water; the buffer solution consists of the following substances in parts by weight: 4 parts of acetic acid, 6 parts of sodium acetate and 20 parts of water.
The polymerization degree of polyvinyl alcohol in the polyvinyl alcohol emulsion is 1800, and the alcoholysis degree is 99.5%.
In order to further enhance the use effect of the stiffening agent, the added graphite powder is subjected to surface modification treatment in the compatibility use of the composite additive, and the specific operations are as follows: and (3) putting graphite powder into a proton irradiation treatment box for irradiation treatment, taking out the graphite powder after the irradiation treatment, immersing the graphite powder into a silane coupling agent solution for soaking treatment for 25min, and finally taking out the graphite powder for vacuum drying treatment. Wherein the output energy in the proton irradiation treatment box is controlled to be 100keV during irradiation treatment; the mass fraction of solute in the silane coupling agent solution is 25%; the silane coupling agent solution is a titanate coupling agent aqueous solution; and during the vacuum drying treatment, the temperature in the vacuum drying oven is controlled to be 90 ℃.
Example 4
A stiffening agent for jean fabric consists of polyvinyl alcohol emulsion, polyurethane emulsion, a composite additive and a buffer solution, wherein the weight parts of the components are as follows: 63 parts of polyvinyl alcohol emulsion, 32 parts of polyurethane emulsion, 9 parts of composite additive and 1.3 parts of buffer solution; wherein the solid content of the polyvinyl alcohol emulsion is 12 percent; the solid content of the polyurethane emulsion is 22 percent; the composite additive is composed of the following substances in parts by weight: 5 parts of chitosan, 2 parts of sodium pyrophosphate, 1.3 parts of citric acid, 6 parts of graphite powder, 5 parts of nonylphenol polyoxyethylene ether, 4 parts of cationic starch and 51 parts of deionized water; the buffer solution consists of the following substances in parts by weight: 3 parts of acetic acid, 5 parts of sodium acetate and 19 parts of water.
The polymerization degree of the polyvinyl alcohol in the polyvinyl alcohol emulsion is 1760, and the alcoholysis degree is 99.5%.
In example 4, the graphite powder was used without any special treatment, and commercially available graphite powder whose surface was not subjected to special treatment was directly added and mixed, as compared with example 2.
Example 5
This example 5 is different from example 4 in that the graphite powder raw material component in the composite additive is omitted, except that the other steps of the method are the same.
Example 6
This example 6 is compared to example 4 with the difference that the use of a complex additive is omitted, except that the process steps are otherwise identical.
In order to compare the effects of the invention, the performance test is carried out on the stiffening agent prepared by the invention, and the specifically selected materials are as follows: 380g/m2The pure cotton indigo jeans; the used equipment is as follows: 630 pound industrial washer, drum type industrial dryer (YG 2-300P), resin-impregnated liquid container, Tonello3D stereoscopic cat whisker machine by Italy, oven machine (YCF-120 type).
The stiffening agent is not directly used for treating the denim, but needs to be compatible with components such as resins to form mixed resin liquid for use, and the common mixed resin liquid comprises the following components in parts by weight: 4-6% of stiffening agent, 12-15% of crumpling resin, 2.5-3% of catalyst and the balance of water, and for the test unification, the compatibility used in the treatment test is as follows: 5% of stiffening agent, 14% of crumpling resin, 2.8% of catalyst and the balance of water, wherein the crumpling resin is modified dimethylol dihydroxy ethylene urea resin selected from SERIREZ AP-ECLF (restriction of chemical industry Co., Ltd.), and the catalyst is MgCl2·6H2The O catalyst, in addition to the above common components, is a stiffening agent specifically selected from stiffening agents prepared in accordance with the above examples 2, 4, 5 and 6, and in order to further compare the effects of the present invention, two existing commercially available stiffening agents are selected, specifically, a polyvinyl acetate stiffening agent is produced by the ten thousand red textile technology ltd, guang, and an acrylic stiffening agent is a stiffening adhesive KDM-T35 of the new bio-materials ltd, guang, gold and de union, guangzhou: these correspond to example 7 and example 8, respectively, followed by application of the existing 3D stereoscopic cat whisker process to denimThe trousers are processed, and the processing technological process comprises the following steps: desizing → washing → drying → resin soaking → upper three-dimensional cat whisker machine pre-drying → oven → adding softener (silicone oil, soft oil), the concrete treatment is: the jeans were soaked in the mixed resin solutions prepared in the above examples 4 to 8 for 15min, and then dehydrated for 5min by the same centrifugal dehydrator. And respectively processing the cat hair into the same three-dimensional cat hair by a Tonello3D three-dimensional cat hair machine, pre-baking for 12 min at 100 ℃, baking for 25min by a vertical baking oven at 145 ℃, finally uniformly adding 3g/L of organic silicon oil and 3g/L of soft oil at normal temperature for 5min, and comparing the style and effect after drying clothes. Specific comparative data are shown in table 1 below:
TABLE 1
Note: the tear strength retention rates described in Table 1 above were tested in accordance with GB/T3923.2-1998 "textile-fabric tear Performance"; the breaking strength retention rate is tested according to the GB/T3917.1-1997 textile-fabric tensile property standard; the three-dimensional effect of the cat whiskers is the comprehensive evaluation result of a plurality of professionals, and the more the quantity, the better the effect is represented; the bottom retention is determined by a grey card for evaluating the color change according to GB/T250-2008; the WRA is a crease recovery angle, and is tested according to GB/T3819.2-1997 'determination of textile-fabric crease recovery-recovery angle method' standard.
As can be seen from the above table 1, the service performance of the stiffening agent prepared by the method of the invention is remarkably improved, and the treated jean fabric has good comprehensive effect, and has great market competitiveness and popularization and application values.
Claims (9)
1. A stiffening agent for denim fabric is characterized by comprising polyvinyl alcohol emulsion, polyurethane emulsion, a composite additive and a buffer solution, wherein the components in parts by weight specifically correspond to the following components in parts by weight: 60-65 parts of polyvinyl alcohol emulsion, 30-35 parts of polyurethane emulsion, 7-10 parts of composite additive and 1-1.5 parts of buffer solution.
2. The stiffening agent for denim fabric according to claim 1, wherein the solid content of the polyvinyl alcohol emulsion is 10-15%.
3. The stiffening agent for denim fabric according to claim 1, wherein the solid content of the polyurethane emulsion is 20-25%.
4. The stiffening agent for denim fabric according to claim 1, wherein the composite additive is composed of the following substances in parts by weight: 4-6 parts of chitosan, 1-3 parts of sodium pyrophosphate, 1-1.5 parts of citric acid, 4-7 parts of graphite powder, 3-6 parts of nonylphenol polyoxyethylene ether, 3-5 parts of cationic starch and 50-55 parts of deionized water.
5. The stiffening agent for denim fabric according to claim 4, wherein the graphite powder is further subjected to surface modification treatment, and the specific operations are as follows: and (3) putting graphite powder into a proton irradiation treatment box for irradiation treatment, taking out the graphite powder after the irradiation treatment, immersing the graphite powder into a silane coupling agent solution for soaking treatment for 20-25 min, and finally taking out the graphite powder for vacuum drying treatment.
6. The stiffening agent for denim fabric according to claim 5, wherein the output energy in the proton irradiation treatment box is controlled to be 90-100 keV during irradiation treatment.
7. The stiffening agent for denim fabric according to claim 5, wherein the mass fraction of solute in the silane coupling agent solution is 20-25%; the silane coupling agent solution is a silane coupling agent aqueous solution or a titanate coupling agent aqueous solution.
8. The stiffening agent for denim fabric according to claim 5, wherein the temperature in the vacuum drying oven is controlled to be 85-90 ℃ during the vacuum drying treatment.
9. The stiffening agent for denim fabric according to claim 1, wherein the buffer solution comprises the following substances in parts by weight: 2-4 parts of acetic acid, 4-6 parts of sodium acetate and 18-20 parts of water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911159955.0A CN110791960A (en) | 2019-11-23 | 2019-11-23 | Stiffening agent for denim fabric |
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| CN201911159955.0A CN110791960A (en) | 2019-11-23 | 2019-11-23 | Stiffening agent for denim fabric |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112012017A (en) * | 2020-09-02 | 2020-12-01 | 佛山市南海利致牛仔布有限公司 | Jean processing technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112012017A (en) * | 2020-09-02 | 2020-12-01 | 佛山市南海利致牛仔布有限公司 | Jean processing technology |
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Application publication date: 20200214 |