CN112127179A - Low-temperature forebath scouring and dyeing enzyme treatment auxiliary agent - Google Patents
Low-temperature forebath scouring and dyeing enzyme treatment auxiliary agent Download PDFInfo
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- CN112127179A CN112127179A CN202010859574.XA CN202010859574A CN112127179A CN 112127179 A CN112127179 A CN 112127179A CN 202010859574 A CN202010859574 A CN 202010859574A CN 112127179 A CN112127179 A CN 112127179A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/445—Use of auxiliary substances before, during or after dyeing or printing
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
- D06L1/12—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using aqueous solvents
- D06L1/14—De-sizing
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
- D06L4/12—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen combined with specific additives
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
- D06L4/13—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen using inorganic agents
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/40—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using enzymes
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/46—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing natural macromolecular substances or derivatives thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/62—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds with sulfate, sulfonate, sulfenic or sulfinic groups
- D06P1/621—Compounds without nitrogen
- D06P1/627—Sulfates
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/64—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
- D06P1/642—Compounds containing nitrogen
- D06P1/647—Nitrogen-containing carboxylic acids or their salts
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/64—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
- D06P1/642—Compounds containing nitrogen
- D06P1/649—Compounds containing carbonamide, thiocarbonamide or guanyl groups
- D06P1/6495—Compounds containing carbonamide -RCON= (R=H or hydrocarbons)
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/64—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
- D06P1/651—Compounds without nitrogen
- D06P1/65106—Oxygen-containing compounds
- D06P1/65118—Compounds containing hydroxyl groups
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/673—Inorganic compounds
- D06P1/67383—Inorganic compounds containing silicon
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Abstract
The invention provides a low-temperature forebath scouring and dyeing enzyme treatment auxiliary agent. The low-temperature forebath scouring and dyeing enzyme treatment auxiliary agent comprises the following components: 5-10 parts of desizing enzyme, 1-2 parts of activating agent, 10-20 parts of hydrogen peroxide, 1-3 parts of chelating agent, 1-3 parts of stabilizing agent, 2-3 parts of surfactant, 2-5 parts of oxygen removing enzyme, 10-20 parts of sodium hydroxide and 10-20 parts of hypochlorous acid. The low-temperature fore-bath scouring and dyeing enzyme treatment auxiliary agent provided by the invention has the advantages of strong effective wettability, low scouring temperature, capability of reducing weight loss rate, dye saving, steam saving and time saving.
Description
Technical Field
The invention relates to the technical field of textiles, in particular to a low-temperature forebath scouring and dyeing enzyme treatment auxiliary agent.
Background
The cotton fabric needs various auxiliary agents such as caustic soda, scouring agent, oxygen bleaching stabilizer and the like in the traditional process, the production process is complicated, the process requirement is high, the sewage treatment capacity is large, the national clean production requirement is not met, and meanwhile, the fiber can be damaged, so that the local brittle loss is caused, and the hand feeling is poor. At present, the use temperature of various products in the market is higher, generally about 90 ℃, the energy consumption is increased due to a high-temperature environment, the temperature rise waiting time is long, the operation environment is sultry, and the low-temperature pretreatment agent is always a market development trend.
Therefore, there is a need to provide a new auxiliary agent for low-temperature pre-bath scouring and dyeing enzyme treatment to solve the above technical problems.
Disclosure of Invention
The invention solves the technical problem of providing the low-temperature pre-bath scouring and dyeing enzyme treatment auxiliary agent which has strong and effective wettability, is low in scouring temperature, can reduce the weight loss rate, saves dye, saves steam and saves time.
In order to solve the technical problems, the low-temperature forebath scouring and dyeing enzyme treatment auxiliary agent provided by the invention comprises the following components: 5 parts of desizing enzyme, 1 part of activating agent, 10 parts of hydrogen peroxide, 1 part of chelating agent, 1 part of stabilizing agent, 2 parts of surfactant, 2 parts of deoxygenizing enzyme, 10 parts of sodium hydroxide and 10 parts of hypochlorous acid;
the low-temperature forebath scouring and dyeing enzyme treatment auxiliary agent comprises the following production steps:
s1: respectively determining corresponding alkali values of desizing enzyme, chelating agent and stabilizing agent, adjusting the dosage to obtain the dosage corresponding to the optimal alkali value, and compounding to obtain a mixed solution A;
s2: and compounding the activating agent, hydrogen peroxide and the surfactant to prepare a mixed solution B.
Preferably, the desizing enzyme and scouring enzyme comprise at least one of: pancreatin, cellulase and alpha-amylase.
Preferably, the activating agent is 3-amino-N-methylbenzamide, and the structural formula is shown in the specification.
Preferably, the chelating agent is one of the following: n, N, N, N-tetraacetylethylenediamine, nitrilotriacetic acid sodium salt, N, N-dimethyloxamide, N-ethylacetamide, malonamide.
Preferably, the stabilizer is sodium silicate.
Preferably, the surfactant is fatty alcohol phosphate or sodium lauryl sulfate or fatty alcohol ether sulfate.
Preferably, the optimum base number in S1 is PH 12 or higher and PH 12 or higher, and the base number is determined by a PH meter.
A low-temperature forebath scouring and dyeing enzyme treatment auxiliary agent comprises the following use steps:
m1: loading the cloth to a treatment device, adding the mixed solution A, and heating to 50 ℃;
m2: adding the mixed solution B, and heating to 85 ℃;
m3: refining for 1h, then discharging liquid, washing with hot water once, and discharging liquid;
m4: washing with cold water, draining, adding clear water, adjusting pH, adding deoxyenzyme, and dyeing.
Preferably, the hot water washing temperature in the M3 is 70 ℃, the washing time is 20min, and the cold water washing time in the M4 is 20 min.
Preferably, in M4, the pH value is adjusted by sodium hydroxide and hypochlorous acid, and the pH value is 7.
Compared with the related technology, the low-temperature forebath scouring and dyeing enzyme processing auxiliary agent provided by the invention has the following beneficial effects:
1) the pretreatment efficiency is improved by determining the dosage of desizing enzyme, chelating agent and stabilizing agent corresponding to the optimal base number;
2) the PVA degradation after desizing is accelerated by adding the chelating agent, so that the toughness of the fabric is improved;
3) the pH value is kept stable by adding a stabilizer;
4) 3-amino-N-methylbenzamide is used as a hydrogen peroxide activator, so that the water solubility is high, the activation effect is good, and the 3-amino-N-methylbenzamide can be used for bleaching fabrics at a low temperature together with peroxyacid generated by hydrogen peroxide;
5) the pretreatment steps are combined, so that the one-step pretreatment of ecological environmental protection is realized, and the effect of the traditional process is basically achieved.
Detailed Description
The invention is further illustrated by the following examples and embodiments.
First embodiment
The low-temperature forebath scouring and dyeing enzyme processing auxiliary agent comprises the following components: 5 parts of desizing enzyme, 1 part of activating agent, 10 parts of hydrogen peroxide, 1 part of chelating agent, 1 part of stabilizing agent, 2 parts of surfactant, 2 parts of deoxygenizing enzyme, 10 parts of sodium hydroxide and 10 parts of hypochlorous acid;
the low-temperature forebath scouring and dyeing enzyme treatment auxiliary agent comprises the following production steps:
s1: respectively determining corresponding alkali values of desizing enzyme, chelating agent and stabilizing agent, adjusting the dosage to obtain the dosage corresponding to the optimal alkali value, and compounding to obtain a mixed solution A;
s2: and compounding the activating agent, hydrogen peroxide and the surfactant to prepare a mixed solution B.
The desizing enzyme and scouring enzyme comprise at least one of: pancreatin, cellulase and alpha-amylase.
The activating agent is 3-amino-N-methylbenzamide, and the structural formula of the activating agent is shown in the specification.
The chelating agent is one of the following: n, N, N, N-tetraacetylethylenediamine, nitrilotriacetic acid sodium salt, N, N-dimethyloxamide, N-ethylacetamide, malonamide.
The stabilizing agent is sodium silicate.
The surfactant is fatty alcohol phosphate or sodium dodecyl sulfate or fatty alcohol ether sulfate.
The optimum pH value in S1 is pH 12 or above pH 12, and the pH is determined by a pH meter.
Compared with the related technology, the low-temperature forebath scouring and dyeing enzyme processing auxiliary agent provided by the invention has the following beneficial effects:
1) the pretreatment efficiency is improved by determining the dosage of desizing enzyme, chelating agent and stabilizing agent corresponding to the optimal base number;
2) the PVA degradation after desizing is accelerated by adding the chelating agent, so that the toughness of the fabric is improved;
3) the pH value is kept stable by adding a stabilizer;
4) the 3-amino-N-methylbenzamide is used as a hydrogen peroxide activator, has strong water solubility and good activation effect, and can be used for bleaching fabrics at a low temperature together with peroxyacid generated by hydrogen peroxide.
Second embodiment
The low-temperature forebath scouring and dyeing enzyme treatment auxiliary agent comprises the following use steps:
m1: loading the cloth to a treatment device, adding the mixed solution A, and heating to 50 ℃;
m2: adding the mixed solution B, and heating to 85 ℃;
m3: refining for 1h, then discharging liquid, washing with hot water once, and discharging liquid;
m4: washing with cold water, draining, adding clear water, adjusting pH, adding deoxyenzyme, and dyeing.
The cleaning temperature of hot water in M3 is 70 ℃, the cleaning time is 20min, and the cleaning time of cold water in M4 is 20 min.
In M4, the pH was adjusted to 7 by sodium hydroxide and hypochlorous acid.
The method combines a plurality of steps of pretreatment, realizes the one-step pretreatment of ecological environmental protection, and basically achieves the effect of the traditional process.
Third embodiment
The low-temperature forebath scouring and dyeing enzyme treatment auxiliary agent respectively determines the corresponding alkali values of desizing enzyme, chelating agent and stabilizing agent by using a national standard NaOH acid-base titration method.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The low-temperature forebath scouring and dyeing enzyme treatment auxiliary agent is characterized by comprising the following components:
5-10 parts of desizing enzyme, 1-2 parts of activating agent, 10-20 parts of hydrogen peroxide, 1-3 parts of chelating agent, 1-3 parts of stabilizing agent, 2-3 parts of surfactant, 2-5 parts of oxygen removing enzyme, 10-20 parts of sodium hydroxide and 10-20 parts of hypochlorous acid;
the low-temperature forebath scouring and dyeing enzyme treatment auxiliary agent comprises the following production steps:
s1: respectively determining corresponding alkali values of desizing enzyme, chelating agent and stabilizing agent, adjusting the dosage to obtain the dosage corresponding to the optimal alkali value, and compounding to obtain a mixed solution A;
s2: and compounding the activating agent, hydrogen peroxide and the surfactant to prepare a mixed solution B.
2. The low temperature forebath scouring enzyme treatment aid according to claim 1, wherein the desizing enzyme and scouring enzyme comprise at least one of: pancreatin, cellulase and alpha-amylase.
3. The low temperature pre-bath scouring and dyeing enzyme treatment aid according to claim 1, wherein the activator is 3-amino-N-methylbenzamide having a structural formula
4. The low temperature forebath scouring enzyme treatment aid according to claim 1, wherein the chelating agent is one of: n, N, N, N-tetraacetylethylenediamine, nitrilotriacetic acid sodium salt, N, N-dimethyloxamide, N-ethylacetamide, malonamide.
5. The low temperature pre-bath scouring enzyme treatment aid according to claim 1, wherein the stabilizer is sodium silicate.
6. The low temperature pre-bath scouring enzyme treatment aid according to claim 1, wherein the surfactant is a fatty alcohol phosphate or sodium lauryl sulfate or fatty alcohol ether sulfate.
7. The auxiliary agent for treating a low-temperature pre-bath scouring enzyme according to claim 1, wherein the optimum pH value in S1 is pH 12 or more and pH 12 or more, and the pH value is determined by a pH meter.
8. The low temperature forebath scouring enzyme treatment aid according to claim 1, comprising the following steps of use:
m1: loading the cloth to a treatment device, adding the mixed solution A, and heating to 40-50 ℃;
m2: adding the mixed solution B, and heating to 80-85 ℃;
m3: refining for 1h, then discharging liquid, washing with hot water once, and discharging liquid;
m4: washing with cold water, draining, adding clear water, adjusting pH, adding deoxyenzyme, and dyeing.
9. The low-temperature pre-bath scouring and dyeing enzyme treatment auxiliary agent as claimed in claim 1, wherein the washing temperature of hot water in M3 is 60-70 ℃, the washing time is 15-20min, and the washing time of cold water in M4 is 15-20 min.
10. The auxiliary agent for low-temperature pre-bath scouring enzyme treatment according to claim 1, wherein in M4, pH is adjusted by sodium hydroxide and hypochlorous acid, and pH is 6-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010859574.XA CN112127179A (en) | 2020-08-24 | 2020-08-24 | Low-temperature forebath scouring and dyeing enzyme treatment auxiliary agent |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010859574.XA CN112127179A (en) | 2020-08-24 | 2020-08-24 | Low-temperature forebath scouring and dyeing enzyme treatment auxiliary agent |
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| CN112127179A true CN112127179A (en) | 2020-12-25 |
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| CN202010859574.XA Pending CN112127179A (en) | 2020-08-24 | 2020-08-24 | Low-temperature forebath scouring and dyeing enzyme treatment auxiliary agent |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103194907A (en) * | 2013-03-13 | 2013-07-10 | 上海嘉乐股份有限公司 | Pretreatment process for cotton knitted fabric low-temperature scouring and bleaching one bath two steps and washing deoxygenation one bath one step method |
| CN108930155A (en) * | 2018-06-21 | 2018-12-04 | 安徽找宝纺织科技有限公司 | A kind of soft finish method of fabric |
-
2020
- 2020-08-24 CN CN202010859574.XA patent/CN112127179A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103194907A (en) * | 2013-03-13 | 2013-07-10 | 上海嘉乐股份有限公司 | Pretreatment process for cotton knitted fabric low-temperature scouring and bleaching one bath two steps and washing deoxygenation one bath one step method |
| CN108930155A (en) * | 2018-06-21 | 2018-12-04 | 安徽找宝纺织科技有限公司 | A kind of soft finish method of fabric |
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Application publication date: 20201225 |
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