CN110453490A - A kind of wool/ramie blending yarn urea peroxide bleaching technique - Google Patents
A kind of wool/ramie blending yarn urea peroxide bleaching technique Download PDFInfo
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- CN110453490A CN110453490A CN201910742106.1A CN201910742106A CN110453490A CN 110453490 A CN110453490 A CN 110453490A CN 201910742106 A CN201910742106 A CN 201910742106A CN 110453490 A CN110453490 A CN 110453490A
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- wool
- bleaching
- sodium
- urea
- yarn
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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
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Detergent Compositions (AREA)
- Cosmetics (AREA)
Abstract
The present invention provides a kind of wool/ramie blending yarn urea peroxide bleaching technique, the technique are as follows: wool/ramie blending yarn is soaked in liquid lime chloride, wherein carbamide peroxide 6-12 g/L, sodium pyrophosphate 3-10 g/L, sodium carbonate 3-6 g/L, sodium bicarbonate 3-6g/L, ethylenediamine tetra-acetic acid (ETDA) 3-6 g/L, penetrating agent JFC is 1.5-3.5g/L, 60-90 DEG C of temperature, time 50-90 min, pH value 7-11, bath raio 1: 40, urea peroxide bleaching is compared with hydrogen peroxide bleaching, process conditions are mild, the damage of wool fiber in mixed yarn is reduced, bleached yarn strength loss reduces.
Description
Technical field
The invention belongs to bleaching technology fields, and in particular to a kind of wool/ramie blending yarn urea peroxide bleaching technique.
Background technique
Ramee have the function of moisture absorption, rapid heat dissipation, health care, it is anti-radiation, without electrostatic, give back to nature
Impression, be well received by consumers.Wool is the important source material of textile industry, it has, and elasticity is good, hygroscopicity is strong, warming
Property the excellent wearability such as good, select this two kinds of yarns to carry out blended, can achieve performance complement, to improve the clothes of fabric
With performance, improves and optimize the style of wool textile, meet people and comfortable and easy to wearization, functionalization, beautyization and environmental protection are wanted
It asks.However, wool fiber is by violent swelling action in high temperature steam treatment for wool/flax, while water and wool fiber
It chemically reacts, makes protein molecule peptide bond hydrolysis so as to cause the variation of fiber mechanical performance, the scale table of wool fiber
Layer receives a degree of destruction, and surface has the microgroove of gully shape to generate, after high-temperature hydrothermal process, the crystallization of wool fiber
Index can decrease, and after 110 DEG C of -10min steam treatments, wool fiber starts yellowing, through 120 DEG C of -10min steam treatments
Wool fiber have apparent dim yellow, and after 130 DEG C of steam treatments, the yellow of wool fiber will become more serious,
This can seriously affect the presentation quality of wool yarn and fabric, and then influence the use of wool.Therefore, it needs to develop a kind of sheep
Hair/ramie blending yarn urea peroxide bleaching technique increases the whiteness of wool fiber, improves wool/ramie blending yarn appearance
Quality.
Summary of the invention
In view of the above-mentioned problems of the prior art, the purpose of the present invention is to provide a kind of wool/ramie blending yarn mistakes
Urea bleaching process is aoxidized, the whiteness of wool fiber is increased, improves wool/ramie blending yarn presentation quality.
To achieve the above object, the technical scheme adopted by the invention is as follows:
A kind of wool/ramie blending yarn urea peroxide bleaching technique, the technique are as follows: wool/ramie blending yarn is soaked in drift
In white solution, wherein carbamide peroxide 6-12 g/L, sodium pyrophosphate 3-10 g/L, sodium carbonate 3-6 g/L, sodium bicarbonate 3-
6g/L, ethylenediamine tetra-acetic acid (ETDA) 3-6 g/L, penetrating agent JFC 1.5-3.5g/L, 60-90 DEG C of temperature, time 50-
90 min, pH value 7-11, bath raio 1: 40.
Further, the carbamide peroxide preparation process are as follows: by 15-30g urea and 0.2-0.4g hydrogen phosphite sodium
Stabilizer is dissolved in H2O2In solution, 30 min are stirred at 30 DEG C of thermostat water bath, are crystallized after reaction at -5 DEG C,
Separation is filtered again, dry to get carbamide peroxide white crystal.
Further, the liquid lime chloride agents useful for same includes penetrating agent JFC, hydrogen peroxide (H2O2), urea, carbonic acid
Sodium, sodium bicarbonate, sodium pyrophosphate, hydrogen phosphite stable sodium agent.
Carbamide peroxide is that urea and hydrogen peroxide are formed by adduct.Appearance is white crystalline powder, is divided in water
Solution is urea, hydrogen peroxide and elemental oxygen, and slowly releases oxygen.Wherein active o content is high, and solubility in water is big, surely
Qualitative height.In the case that other conditions are constant, increase the dosage of carbamide peroxide, removes depigmentation, whiteness increases, but hydrogen peroxide
The strength that dosage increase certainly will will lead to fiber reduces, therefore selects hydrogen peroxide use appropriate most important.
The tone and whiteness of mixed yarn can be improved in ethylenediamine tetra-acetic acid (ETDA) in bleaching, in acceptable and bleaching liquor
Metal ion forms chelate, drives away interference of the metal ion to bleaching effect.
Sodium pyrophosphate is used as stripping agent and Blankit, is also used to the bleaching of mixed yarn, is alternatively arranged as dispersing agent and cream
Agent plays good effect to the bleaching of wool/ramie blending yarn.
Sodium bicarbonate plays cleaning function to the wool in wool/ramie blending yarn, increases the bleaching effect of hydroxide urea
Fruit.
Sodium carbonate hydrolysis OH in bleaching process-Ion adjusts bleaching liquid pH value, makes carbamide peroxide resolution ratio
It improves, gives full play to the blanching effect of carbamide peroxide.
Temperature is an important parameter of bleaching process, and height directly affects decomposition rate and the bleaching of carbamide peroxide
Rate.Temperature is low, and the chemical reaction rate of bleaching liquid and pigment, impurity in yarn is slow, and bleaching effect is poor；Temperature is high, bleaching
Rate is high, and bleaching effect is good, although excessively high whiteness improves but can make fibre damage, breaking strength decline.
In bleaching process, bleaching time is partially short, and bleaching liquid cannot react completely with the pigment on yarn, and bleaching effect is not
It is good, but bleaching time gets over long fibre and fiber can be made to cause to damage because of peeling reaction, reduces spinnability.Bleaching time is less than
When 50 min, bleaching liquid is not reacted with pigment also completely to be just over, and not only bleaching effect is poor, but also causes chemical reagent
Waste；When bleaching time is more than 90 min, fiber will cause damage, not be able to satisfy the requirement of spinning equipment.
The invention has the following advantages that the solubility of carbamide peroxide (abbreviation UP) in water in the present invention is big, it is right
Fibrous zero damage, it is pollution-free nontoxic, have the function of that efficient bleaching and sterilizing, carbamide peroxide dissolve in various organic solvents, this
Outer carbamide peroxide also acts as the multiple uses such as fungicide, antistatic agent, additive, disinfectant, sufficiently shows its superiority.
After peroxide bleaching, obvious change is had occurred in wool/ramie blending yarn fiber surface structure, and fiber surface is more
Add clean and tidy and smooth, illustrates that the impurity in blend fibre is largely removed, and the effect through urea peroxide bleaching is better than
The mixed yarn of hydrogen peroxide bleaching；For urea peroxide bleaching compared with hydrogen peroxide bleaching, process conditions are mild, in mixed yarn
The damage of wool fiber reduces, and bleached yarn strength loss reduces；Urea peroxide bleaching makees stabilizer it is not necessary that sodium metasilicate is added, and keeps away
Silicon dirt problem is exempted from, so that the bleaching effect of mixed yarn is more uniform, has kept wool fiber injury-free or damaging not serious
In the case of adjustment bleaching process can shorten bleaching time, improve production efficiency.
Specific embodiment
For a further understanding of the present invention, embodiment of the present invention is made into one below in conjunction with embodiment and comparative example
Detailed description is walked, but embodiments of the present invention are not limited to this.
In order to which the purpose of the present invention, technical solution is more clearly understood, below in conjunction with example, the present invention is carried out into one
Step is described in detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to limit this hair
It is bright.Application process of the invention is explained in detail below.
Embodiment 1
A kind of wool/ramie blending yarn urea peroxide bleaching technique, the technique are as follows: wool/ramie blending yarn is soaked in drift
In white solution, wherein 8 g of carbamide peroxide/L, 6 g of sodium pyrophosphate/L, 4 g of sodium carbonate/L, sodium bicarbonate 4g/L, second two
Amine tetraacethyl (ETDA) 5 g/L, penetrating agent JFC 2.5g/L, 80 DEG C of temperature, time 50-90 min, pH value 8, bath raio 1:
40, the carbamide peroxide preparation process are as follows: 15g urea and 0.2g hydrogen phosphite stable sodium agent are dissolved in H2O2In solution,
30 min are stirred at 30 DEG C of thermostat water bath, are crystallized after reaction at -5 DEG C, then filters separation, is dry to get mistake
Aoxidize urea white crystal.By the resulting mixed yarn whiteness 78. of urea peroxide bleaching flax/wool blended yarn optimization technique
6%, 332 cN of ultimate strength.
Embodiment 2
A kind of wool/ramie blending yarn urea peroxide bleaching technique, the technique are as follows: wool/ramie blending yarn is soaked in drift
In white solution, wherein carbamide peroxide 10g/L, 8 g of sodium pyrophosphate/L, 4 .5g of sodium carbonate/L, sodium bicarbonate 4.5g/L,
Ethylenediamine tetra-acetic acid (ETDA) 5.5 g/L, penetrating agent JFC 3.5g/L, 90 DEG C of temperature, 85 min of time, pH value 9, bath
Than 1: 40, the carbamide peroxide preparation process are as follows: 30g urea and 0.4g hydrogen phosphite stable sodium agent are dissolved in H2O2It is molten
In liquid, 30 min are stirred at 30 DEG C of thermostat water bath, are crystallized after reaction at -5 DEG C, then filter separation, drying,
Up to carbamide peroxide white crystal.As HO in the increase of peroxidating amount of urea, bleaching liquid2 -Ion increases, chromatophagous
It is conjugated color development system, whiteness increases；Due to the increase of carbamide peroxide dosage, the oxidisability in bleaching liquid enhances, and aoxidizes pigment
While, cellulose is also oxidized, fibre damage, breaking strength decline.By urea peroxide bleaching flax/wool blended yarn
Optimize the resulting mixed yarn whiteness 80. 6% of technique, 315 cN of ultimate strength.
The above described is only a preferred embodiment of the present invention, being not the limit for making any other form to the present invention
System, made any modification or equivalent variations, still fall within scope of the present invention according to the technical essence of the invention.
Claims (3)
1. a kind of wool/ramie blending yarn urea peroxide bleaching technique, which is characterized in that the technique are as follows: mix wool/ramie
Spinning is soaked in liquid lime chloride, wherein carbamide peroxide 6-12 g/L, and sodium pyrophosphate 3-10 g/L, sodium carbonate 3-6 g/
L, sodium bicarbonate 3-6g/L, ethylenediamine tetra-acetic acid (ETDA) 3-6 g/L, penetrating agent JFC 1.5-3.5g/L, temperature 60-90
DEG C, time 50-90 min, pH value 7-11, bath raio 1: 40.
2. bleaching process according to claim 1, which is characterized in that the carbamide peroxide preparation process are as follows: by 15-
30g urea and 0.2-0.4g hydrogen phosphite stable sodium agent are dissolved in H2O2In solution, 30 are stirred at 30 DEG C of thermostat water bath
Min is crystallized at -5 DEG C after reaction, then filters separation, is dry to get carbamide peroxide white crystal.
3. bleaching process according to claim 1 or 2, which is characterized in that the liquid lime chloride agents useful for same includes seeping
Saturating agent JFC, hydrogen peroxide (H2O2), urea, sodium carbonate, sodium bicarbonate, sodium pyrophosphate, hydrogen phosphite stable sodium agent.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910742106.1A CN110453490A (en) | 2019-08-13 | 2019-08-13 | A kind of wool/ramie blending yarn urea peroxide bleaching technique |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910742106.1A CN110453490A (en) | 2019-08-13 | 2019-08-13 | A kind of wool/ramie blending yarn urea peroxide bleaching technique |
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| CN110453490A true CN110453490A (en) | 2019-11-15 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102617406A (en) * | 2012-03-12 | 2012-08-01 | 河北科技大学 | Stabilizing agent in urea peroxide storage process and preparation method of stabilizing agent |
| CN103290669A (en) * | 2013-03-21 | 2013-09-11 | 江南大学 | Preparation method and application technique of low-temperature neutral oxygen bleaching system for cellulosic fibers |
| CN103485153A (en) * | 2013-08-30 | 2014-01-01 | 张家港市金太阳帽业有限公司 | Acidic oxidation bleaching process of wool fibers |
| CN109023911A (en) * | 2018-09-13 | 2018-12-18 | 许昌市建安区东和畜牧养殖专业合作社 | The low damage wool of one kind tentatively cleans bleaching process |
| CN109468825A (en) * | 2018-11-12 | 2019-03-15 | 武汉纺织大学 | A kind of reagent composition and textile bleaching processes for textile bleaching |
-
2019
- 2019-08-13 CN CN201910742106.1A patent/CN110453490A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102617406A (en) * | 2012-03-12 | 2012-08-01 | 河北科技大学 | Stabilizing agent in urea peroxide storage process and preparation method of stabilizing agent |
| CN103290669A (en) * | 2013-03-21 | 2013-09-11 | 江南大学 | Preparation method and application technique of low-temperature neutral oxygen bleaching system for cellulosic fibers |
| CN103485153A (en) * | 2013-08-30 | 2014-01-01 | 张家港市金太阳帽业有限公司 | Acidic oxidation bleaching process of wool fibers |
| CN109023911A (en) * | 2018-09-13 | 2018-12-18 | 许昌市建安区东和畜牧养殖专业合作社 | The low damage wool of one kind tentatively cleans bleaching process |
| CN109468825A (en) * | 2018-11-12 | 2019-03-15 | 武汉纺织大学 | A kind of reagent composition and textile bleaching processes for textile bleaching |
Non-Patent Citations (1)
| Title |
|---|
| 中国科学技术协会、沈阳市人民政府: "《中国科协"振兴东北地区等老工业基地"专家论坛暨首届沈阳科学学术年会论文选编》", 30 September 2004, 沈阳出版社 * |
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Application publication date: 20191115 |