CN109056303A - A kind of color inhibition cold bleaching technique of cashmere - Google Patents
A kind of color inhibition cold bleaching technique of cashmere Download PDFInfo
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- CN109056303A CN109056303A CN201810705497.5A CN201810705497A CN109056303A CN 109056303 A CN109056303 A CN 109056303A CN 201810705497 A CN201810705497 A CN 201810705497A CN 109056303 A CN109056303 A CN 109056303A
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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
- D06L4/13—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
- 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
- D06L1/16—Multi-step processes
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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
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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
- 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
- D06M13/322—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 nitrogen
- D06M13/402—Amides imides, sulfamic acids
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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
- D06M15/01—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
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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
- D06M15/285—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acid amides or imides
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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
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/10—Animal fibres
- D06M2101/12—Keratin fibres or silk
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- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a kind of color inhibition cold bleaching techniques of cashmere, are related to textile processing technical field, comprising the following steps: (1) pre-process, (2) bleaching, (3) washing, drying.The present invention realizes the cold bleaching of cashmere, and technological operation is easy and reproducible, is conducive to guarantee bleaching effect while reducing bleaching process cost；And the efficient progress in favor of following bleaching technique is activated to cashmere fiber surface using the pretreatment operation, enhance bleaching effect by improving active area of the effective component on cashmere fiber and active force contained by bleaching agent.
Description
Technical field:
The present invention relates to textile processing technical fields, and in particular to a kind of color inhibition cold bleaching technique of cashmere.
Background technique:
Cashmere is a kind of textile raw material of preciousness, and natural cashmere has the multiple colors such as white, green, purple, brown, wherein most precious
Be white, it is therefore desirable to cashmere carry out bleaching.Currently, common bleaching agent mainly includes hypochlorite, sodium chlorite
And hydrogen peroxide.Hypochlorite is divided into bleaching powder and two kinds of sodium hypochlorite, and bleaching powder itself has certain degree of harm, such as height
Temperature, water, acid or grease can all cause combustion explosion, and can give out the chlorine with rank smell, pass through the upper respiratory tract
Human body is caused to poison with skin and mucosa.Sodium hypochlorite is because have destruction to protein fibre, and make fiber yellowing, therefore
It cannot be used for the bleaching of cashmere.The fabric whiteness stability of chlorite bleaching is good, but sodium chlorite price is more expensive, to metal corruption
Corrosion is strong, and toxic ClO can be generated in bleaching process2Gas, thus it is higher to the sealing requirements of bleaching equipment.Peroxidating
The fabric whiteness of hydrogen bleaching is preferable, and pure color light, when storage is not easy yellowing, but its strong oxidizing property can cause cashmere fiber centainly
The damage of degree.
In addition, cold bleaching technique can be used in order to mitigate bleaching process damage caused by cashmere fiber.But it is conventional
The cold bleaching limited capacity of bleaching agent, through cold bleaching treated fabric whiteness is high or easy yellowing, it is therefore desirable to
For the novel fleece fabrics bleaching agent of cold bleaching process exploitation and its bleaching process.
Summary of the invention:
Technical problem to be solved by the present invention lies in providing, a kind of energy consumption investment is low, bleaching effect is good and bleach stability
Strong cashmere color inhibition cold bleaching technique.
The following technical solution is employed for the technical problems to be solved by the invention to realize:
A kind of color inhibition cold bleaching technique of cashmere, comprising the following steps:
(1) it pre-processes: by cashmere thorough impregnation in pretreatment fluid, dipping bath ratio 1:25-35, then with 1-2 DEG C/min
Heating rate be warming up to 45-55 DEG C of heat preservation 15-30min, pick-up control is solid then at high temperature at 100-110 DEG C in 60-70%
Change 3-5min, then dries in 40-50 DEG C of hot wind to constant weight；
The pretreatment fluid is made of the raw material of following parts by weight: 15-25 parts of cationic polyacrylamide, chitosan season
1-5 parts of ammonium salt, 1-5 parts, 1000 parts of water of two (lauramide glutamine) Sodium lysinate；
(2) bleaching: by cashmere thorough impregnation after pretreatment in bleaching liquid, dipping bath ratio 1:30-40, then
It is warming up to 50-60 DEG C of heat preservation 30-60min with the heating rate of 1-2 DEG C/min, pick-up control recycles microwave in 60-70%
Reactor microwave treatment 30-60s completes the bleaching of cashmere；
(3) it washes, is dry: three times by the cashmere washing after bleaching, 40-50 DEG C of warm water washing one being respectively adopted
Secondary, 10-20 DEG C of cold water washed once, 30-40 DEG C of warm water washed once, water washing bath ratio 1:30-40, and in 40-50 DEG C of hot wind
It dries to constant weight.
The operating condition of the microwave reactor is microwave frequency 2450MHz, output power 700W.
The bleaching liquid includes the raw material of following parts by weight:
5-10 parts of hydrogen peroxide, 0.5-2 parts of copolymer of phosphono carboxylic acid, 0.5-2 parts of decyl glucoside, poly- epoxy succinic
0.5-2 parts sour, 0.5-2 parts of ethoxylated dodecyl alcohol, 0.25-1 parts of poly-aspartic-acid, 1500 parts of water.
The bleaching liquid also includes 0.5-2 parts of acrylamide polymers.
The acrylamide polymer is made of N hydroxymethyl acrylamide and polyglutamic acid through esterification and polymerization reaction,
It is specific the preparation method comprises the following steps: first that N hydroxymethyl acrylamide and polyglutamic acid is soluble in water, and mass concentration 10% is added dropwise
Dilute sulfuric acid regulation system pH value to 5, be again heated to 75-85 DEG C of insulation reaction, it is to be esterified that mass concentration is added dropwise after the reaction was completed
Then 5% sodium bicarbonate solution regulation system pH value is added the ammonium persulfate aqueous solution of mass concentration 10%, continues to 7
75-85 DEG C of insulation reaction, cooled to room temperature after the reaction was completed to be polymerized, into gained mixture be added dropwise dehydrated alcohol until
Without Precipitation, filtering, precipitating is dried in vacuo, and dry obtained solid is made micro mist through micronizer and gathers to get acrylamide
Close object.
The polyglutamic acid selects food-grade polyglutamic acid.
The N hydroxymethyl acrylamide, polyglutamic acid, ammonium persulfate aqueous solution mass ratio be 15-25:5-10:1-
5。
The beneficial effects of the present invention are:
(1) present invention realizes the cold bleaching of cashmere, and technological operation is easy and reproducible, is conducive to reducing bleaching
Guarantee bleaching effect while process costs；
(2) present invention is activated in favor of following bleaching work cashmere fiber surface using the pretreatment operation
The efficient progress of skill is floated by improving active area and active force of the effective component contained by bleaching agent on cashmere fiber to enhance
White effect；
(3) present invention realizes cold bleaching by the bleaching liquid, avoids high-temperature bleaching while reducing energy consumption investment
The irreversible damage caused by cashmere fiber；Significantly shorten bleaching time using the bleaching liquid, and improves the cashmere after bleaching
The excellent anti-yellowing property of the whiteness and imparting fleece fabrics of fabric；
(4) present invention strengthens bleaching effect by the microwave treatment of short time, improves the retention of whiteness of fleece fabrics,
The cashmere after bleaching is avoided to influence the use quality and service life of fabric because there is yellowing phenomenon.
Specific embodiment:
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific embodiment is closed, the present invention is further explained.
Cationic polyacrylamide selects the production of Henan Sai Ke Environmental Protection Technology Co., Ltd in following embodiment and reference examples
Molecular weight 8,000,000 cationic polyacrylamide, chitosan quaternary ammonium salt select Shanghai Zhe Yan Biotechnology Co., Ltd production
Chitosan quaternary ammonium salt, copolymer of phosphono carboxylic acid, poly-epoxy succinic acid and poly-aspartic-acid select the calm and peaceful water process in Shandong
Copolymer of phosphono carboxylic acid, poly-epoxy succinic acid and the poly-aspartic-acid of Science and Technology Co., Ltd.'s production.
Embodiment 1
The bleaching of cashmere:
(1) it pre-processes: by cashmere thorough impregnation in pretreatment fluid, dipping bath ratio 1:30, then with the liter of 1-2 DEG C/min
Warm speed is warming up to 50-55 DEG C of heat preservation 30min, and pick-up is controlled 70%, then at hot setting 3min at 105-110 DEG C, then
It dries in 45-50 DEG C of hot wind to constant weight；
The preparation of pretreatment fluid: 20g cationic polyacrylamide, 4g chitosan quaternary ammonium salt, 3g bis- are added into 1000g water
(lauramide glutamine) Sodium lysinate, stirring and dissolving is completely to get pretreatment fluid；
(2) bleaching: by cashmere thorough impregnation after pretreatment in bleaching liquid, dipping bath ratio 1:35, then with
The heating rate of 1-2 DEG C/min is warming up to 50-55 DEG C of heat preservation 30min, and pick-up control recycles microwave frequency 70%
The microwave reactor microwave treatment 1min of 2450MHz, output power 700W complete the bleaching of cashmere；
The preparation of bleaching liquid: 8g hydrogen peroxide, 1g copolymer of phosphono carboxylic acid, 1g decyl grape are added into 1500g water
Glucosides, 1g poly-epoxy succinic acid, 0.5g ethoxylated dodecyl alcohol, 0.5g poly-aspartic-acid, stirring and dissolving is completely to get drift
White liquor；
(3) it washes, is dry: three times by the cashmere washing after bleaching, 45-50 DEG C of warm water washing one being respectively adopted
Secondary, 15-20 DEG C of cold water washed once, 35-40 DEG C of warm water washed once, water washing bath ratio 1:30, and dry in 45-50 DEG C of hot wind
To constant weight.
Embodiment 2
The bleaching of cashmere:
(1) it pre-processes: by cashmere thorough impregnation in pretreatment fluid, dipping bath ratio 1:30, then with the liter of 1-2 DEG C/min
Warm speed is warming up to 50-55 DEG C of heat preservation 30min, and pick-up is controlled 70%, then at hot setting 3min at 105-110 DEG C, then
It dries in 45-50 DEG C of hot wind to constant weight；
The preparation of pretreatment fluid: 25g cationic polyacrylamide, 4g chitosan quaternary ammonium salt, 3g bis- are added into 1000g water
(lauramide glutamine) Sodium lysinate, stirring and dissolving is completely to get pretreatment fluid；
(2) bleaching: by cashmere thorough impregnation after pretreatment in bleaching liquid, dipping bath ratio 1:35, then with
The heating rate of 1-2 DEG C/min is warming up to 50-55 DEG C of heat preservation 30min, and pick-up control recycles microwave frequency 70%
The microwave reactor microwave treatment 1min of 2450MHz, output power 700W complete the bleaching of cashmere；
The preparation of bleaching liquid: 8g hydrogen peroxide, 1g copolymer of phosphono carboxylic acid, 1g decyl grape are added into 1500g water
Glucosides, 1g poly-epoxy succinic acid, 0.5g ethoxylated dodecyl alcohol, 0.5g poly-aspartic-acid, stirring and dissolving is completely to get drift
White liquor；
(3) it washes, is dry: three times by the cashmere washing after bleaching, 45-50 DEG C of warm water washing one being respectively adopted
Secondary, 15-20 DEG C of cold water washed once, 35-40 DEG C of warm water washed once, water washing bath ratio 1:30, and dry in 45-50 DEG C of hot wind
To constant weight.
Embodiment 3
The bleaching of cashmere:
(1) it pre-processes: by cashmere thorough impregnation in pretreatment fluid, dipping bath ratio 1:30, then with the liter of 1-2 DEG C/min
Warm speed is warming up to 50-55 DEG C of heat preservation 30min, and pick-up is controlled 70%, then at hot setting 3min at 105-110 DEG C, then
It dries in 45-50 DEG C of hot wind to constant weight；
The preparation of pretreatment fluid: 25g cationic polyacrylamide, 4g chitosan quaternary ammonium salt, 3g bis- are added into 1000g water
(lauramide glutamine) Sodium lysinate, stirring and dissolving is completely to get pretreatment fluid；
(2) bleaching: by cashmere thorough impregnation after pretreatment in bleaching liquid, dipping bath ratio 1:35, then with
The heating rate of 1-2 DEG C/min is warming up to 50-55 DEG C of heat preservation 30min, and pick-up control recycles microwave frequency 70%
The microwave reactor microwave treatment 1min of 2450MHz, output power 700W complete the bleaching of cashmere；
The preparation of bleaching liquid: 8g hydrogen peroxide, 1g copolymer of phosphono carboxylic acid, 1g decyl grape are added into 1500g water
Glucosides, 1g poly-epoxy succinic acid, 1g acrylamide polymer, 0.5g ethoxylated dodecyl alcohol, 0.5g poly-aspartic-acid, are stirred
Dissolution is mixed completely to get bleaching liquid；
The preparation of acrylamide polymer: first that 25g N hydroxymethyl acrylamide and 10g food-grade polyglutamic acid is molten
Yu Shuizhong, and the dilute sulfuric acid regulation system pH value that mass concentration 10% is added dropwise is again heated to 75-80 DEG C of insulation reaction, to ester to 5
Change the sodium bicarbonate solution regulation system pH value that mass concentration 5% is added dropwise after the reaction was completed to 7,5g mass concentration is then added
10% ammonium persulfate aqueous solution, continues at 75-80 DEG C of insulation reaction, cooled to room temperature after the reaction was completed to be polymerized, to
Dehydrated alcohol is added dropwise in gained mixture up to no Precipitation, filtering, precipitating vacuum drying, dry obtained solid is through Ultramicro-powder
Micro mist is made to get acrylamide polymer in broken machine；
(3) it washes, is dry: three times by the cashmere washing after bleaching, 45-50 DEG C of warm water washing one being respectively adopted
Secondary, 15-20 DEG C of cold water washed once, 35-40 DEG C of warm water washed once, water washing bath ratio 1:30, and dry in 45-50 DEG C of hot wind
To constant weight.
Reference examples 1
The bleaching of cashmere:
(1) it pre-processes: by cashmere thorough impregnation in pretreatment fluid, dipping bath ratio 1:30, then with the liter of 1-2 DEG C/min
Warm speed is warming up to 50-55 DEG C of heat preservation 30min, and pick-up is controlled 70%, then at hot setting 3min at 105-110 DEG C, then
It dries in 45-50 DEG C of hot wind to constant weight；
The preparation of pretreatment fluid: 25g cationic polyacrylamide, 4g chitosan quaternary ammonium salt, 3g bis- are added into 1000g water
(lauramide glutamine) Sodium lysinate, stirring and dissolving is completely to get pretreatment fluid；
(2) bleaching: by cashmere thorough impregnation after pretreatment in bleaching liquid, dipping bath ratio 1:35, then with
The heating rate of 1-2 DEG C/min is warming up to 50-55 DEG C of heat preservation 30min, and pick-up control recycles microwave frequency 70%
The microwave reactor microwave treatment 1min of 2450MHz, output power 700W complete the bleaching of cashmere；
The preparation of bleaching liquid: 8g hydrogen peroxide, 1g copolymer of phosphono carboxylic acid, 1g decyl grape are added into 1500g water
Glucosides, 1g poly-epoxy succinic acid, 0.5g ethoxylated dodecyl alcohol, stirring and dissolving is completely to get bleaching liquid；
(3) it washes, is dry: three times by the cashmere washing after bleaching, 45-50 DEG C of warm water washing one being respectively adopted
Secondary, 15-20 DEG C of cold water washed once, 35-40 DEG C of warm water washed once, water washing bath ratio 1:30, and dry in 45-50 DEG C of hot wind
To constant weight.
Reference examples 2
The bleaching of cashmere:
(1) it pre-processes: by cashmere thorough impregnation in pretreatment fluid, dipping bath ratio 1:30, then with the liter of 1-2 DEG C/min
Warm speed is warming up to 50-55 DEG C of heat preservation 30min, and pick-up is controlled 70%, then at hot setting 3min at 105-110 DEG C, then
It dries in 45-50 DEG C of hot wind to constant weight；
The preparation of pretreatment fluid: 25g cationic polyacrylamide, 4g chitosan quaternary ammonium salt, 3g bis- are added into 1000g water
(lauramide glutamine) Sodium lysinate, stirring and dissolving is completely to get pretreatment fluid；
(2) bleaching: by cashmere thorough impregnation after pretreatment in bleaching liquid, dipping bath ratio 1:35, then with
The heating rate of 1-2 DEG C/min is warming up to 50-55 DEG C of heat preservation 30min, and pick-up control recycles microwave frequency 70%
The microwave reactor microwave treatment 1min of 2450MHz, output power 700W complete the bleaching of cashmere；
The preparation of bleaching liquid: 8g hydrogen peroxide, 1g copolymer of phosphono carboxylic acid, 1g decyl grape are added into 1500g water
Glucosides, 0.5g ethoxylated dodecyl alcohol, 0.5g poly-aspartic-acid, stirring and dissolving is completely to get bleaching liquid；
(3) it washes, is dry: three times by the cashmere washing after bleaching, 45-50 DEG C of warm water washing one being respectively adopted
Secondary, 15-20 DEG C of cold water washed once, 35-40 DEG C of warm water washed once, water washing bath ratio 1:30, and dry in 45-50 DEG C of hot wind
To constant weight.
Reference examples 3
The bleaching of cashmere:
(1) it pre-processes: by cashmere thorough impregnation in pretreatment fluid, dipping bath ratio 1:30, then with the liter of 1-2 DEG C/min
Warm speed is warming up to 50-55 DEG C of heat preservation 30min, and pick-up is controlled 70%, then at hot setting 3min at 105-110 DEG C, then
It dries in 45-50 DEG C of hot wind to constant weight；
The preparation of pretreatment fluid: 25g cationic polyacrylamide, 4g chitosan quaternary ammonium salt, 3g bis- are added into 1000g water
(lauramide glutamine) Sodium lysinate, stirring and dissolving is completely to get pretreatment fluid；
(2) bleaching: by cashmere thorough impregnation after pretreatment in bleaching liquid, dipping bath ratio 1:35, then with
The heating rate of 1-2 DEG C/min is warming up to 50-55 DEG C of heat preservation 30min, and pick-up control recycles microwave frequency 70%
The microwave reactor microwave treatment 1min of 2450MHz, output power 700W complete the bleaching of cashmere；
The preparation of bleaching liquid: into 1500g water be added 8g hydrogen peroxide, 1g decyl glucoside, 1g poly-epoxy succinic acid,
0.5g ethoxylated dodecyl alcohol, 0.5g poly-aspartic-acid, stirring and dissolving is completely to get bleaching liquid；
(3) it washes, is dry: three times by the cashmere washing after bleaching, 45-50 DEG C of warm water washing one being respectively adopted
Secondary, 15-20 DEG C of cold water washed once, 35-40 DEG C of warm water washed once, water washing bath ratio 1:30, and dry in 45-50 DEG C of hot wind
To constant weight.
Reference examples 4
The bleaching of cashmere:
(1) it pre-processes: by cashmere thorough impregnation in pretreatment fluid, dipping bath ratio 1:30, then with the liter of 1-2 DEG C/min
Warm speed is warming up to 50-55 DEG C of heat preservation 30min, and pick-up is controlled 70%, then at hot setting 3min at 105-110 DEG C, then
It dries in 45-50 DEG C of hot wind to constant weight；
The preparation of pretreatment fluid: 25g cationic polyacrylamide, 4g chitosan quaternary ammonium salt, 3g bis- are added into 1000g water
(lauramide glutamine) Sodium lysinate, stirring and dissolving is completely to get pretreatment fluid；
(2) bleaching: by cashmere thorough impregnation after pretreatment in bleaching liquid, dipping bath ratio 1:35, then with
The heating rate of 1-2 DEG C/min is warming up to 50-55 DEG C of heat preservation 30min, and pick-up control is 70%, i.e., at the bleaching of completion cashmere
Reason；
The preparation of bleaching liquid: 8g hydrogen peroxide, 1g copolymer of phosphono carboxylic acid, 1g decyl grape are added into 1500g water
Glucosides, 1g poly-epoxy succinic acid, 0.5g ethoxylated dodecyl alcohol, 0.5g poly-aspartic-acid, stirring and dissolving is completely to get drift
White liquor；
(3) it washes, is dry: three times by the cashmere washing after bleaching, 45-50 DEG C of warm water washing one being respectively adopted
Secondary, 15-20 DEG C of cold water washed once, 35-40 DEG C of warm water washed once, water washing bath ratio 1:30, and dry in 45-50 DEG C of hot wind
To constant weight.
Reference examples 5
The bleaching of cashmere:
(1) bleaching: by cashmere thorough impregnation in bleaching liquid, dipping bath ratio 1:35, then with the liter of 1-2 DEG C/min
Warm speed is warming up to 50-55 DEG C of heat preservation 30min, and pick-up control recycles microwave frequency 2450MHz, output power 70%
The microwave reactor microwave treatment 1min of 700W completes the bleaching of cashmere；
The preparation of bleaching liquid: 8g hydrogen peroxide, 1g copolymer of phosphono carboxylic acid, 1g decyl grape are added into 1500g water
Glucosides, 1g poly-epoxy succinic acid, 0.5g ethoxylated dodecyl alcohol, 0.5g poly-aspartic-acid, stirring and dissolving is completely to get drift
White liquor；
(2) it washes, is dry: three times by the cashmere washing after bleaching, 45-50 DEG C of warm water washing one being respectively adopted
Secondary, 15-20 DEG C of cold water washed once, 35-40 DEG C of warm water washed once, water washing bath ratio 1:30, and dry in 45-50 DEG C of hot wind
To constant weight.
Embodiment 4
Based on embodiment 2, reference examples 1, the bleaching liquid for not adding poly-aspartic-acid when bleaching liquid preparation are set
The reference examples for not adding copolymer of phosphono carboxylic acid when reference examples 2, the bleaching liquid preparation of poly-epoxy succinic acid are not added when preparation
3, without the reference examples of microwave treatment 4, without pretreated reference examples 5.
It is utilized respectively embodiment 1-3, reference examples 1-5 and carries out bleaching to batch equivalent cashmere, to the cashmere after bleaching
Whiteness and yellowness index test are carried out, as shown in table 1.Blank example without bleaching is set.
Whiteness test: according to FZ/T 50013-2008 " cellulose chemistry fibre whiteness test method ".
Yellowness index test: reading X, Y, Z tristimulus values on whiteness instrument, calculates yellowness index.Yellowness index YI=100
×(X-Z)/Y。
The bleaching effect of the made bleaching agent of 1 embodiment of the present invention of table
As shown in Table 1, pretreatment operation and microwave treatment of the present invention can effectively improve the whiteness of cashmere, reduce cashmere
Yellowness index；And the component of bleaching liquid can also significantly affect the whiteness and yellowness index of cashmere.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (3)
1. a kind of color inhibition cold bleaching technique of cashmere, which comprises the following steps:
(1) it pre-processes: by cashmere thorough impregnation in pretreatment fluid, dipping bath ratio 1:25-35, then with the liter of 1-2 DEG C/min
Warm speed is warming up to 45-55 DEG C of heat preservation 15-30min, and pick-up is controlled in 60-70%, then at hot setting 3- at 100-110 DEG C
5min, then dry in 40-50 DEG C of hot wind to constant weight；
The pretreatment fluid is made of the raw material of following parts by weight: 15-25 parts of cationic polyacrylamide, chitosan quaternary ammonium salt
1-5 parts, 1-5 parts, 1000 parts of water of two (lauramide glutamine) Sodium lysinate；
(2) bleaching: by cashmere thorough impregnation after pretreatment in bleaching liquid, dipping bath ratio 1:30-40, then with 1-
The heating rate of 2 DEG C/min is warming up to 50-60 DEG C of heat preservation 30-60min, and pick-up control recycles microwave reaction in 60-70%
Device microwave treatment 30-60s completes the bleaching of cashmere；
(3) wash, be dry: three times by the cashmere washing after bleaching, be respectively adopted 40-50 DEG C of warm water washed once, 10-
20 DEG C of cold water washed once, 30-40 DEG C of warm water washed once, water washing bath ratio 1:30-40, and dry extremely in 40-50 DEG C of hot wind
Constant weight.
2. the color inhibition cold bleaching technique of cashmere according to claim 1, it is characterised in that: the microwave reactor
Operating condition is microwave frequency 2450MHz, output power 700W.
3. the color inhibition cold bleaching technique of cashmere according to claim 1, which is characterized in that the bleaching liquid includes such as
The raw material of lower parts by weight:
5-10 parts of hydrogen peroxide, 0.5-2 parts of copolymer of phosphono carboxylic acid, 0.5-2 parts of decyl glucoside, poly-epoxy succinic acid
0.5-2 parts, 0.5-2 parts of ethoxylated dodecyl alcohol, 0.25-1 parts of poly-aspartic-acid, 1500 parts of water.
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