CN108914630A - A kind of salt-free dyeing technique of cotton fabric - Google Patents
A kind of salt-free dyeing technique of cotton fabric Download PDFInfo
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- CN108914630A CN108914630A CN201810426154.5A CN201810426154A CN108914630A CN 108914630 A CN108914630 A CN 108914630A CN 201810426154 A CN201810426154 A CN 201810426154A CN 108914630 A CN108914630 A CN 108914630A
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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
- D06P1/38—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 reactive dyes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/56—Acrylamide; Methacrylamide
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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
- D06P1/52—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 synthetic macromolecular substances
- D06P1/5207—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- D06P1/525—Polymers of unsaturated carboxylic acids or functional derivatives thereof
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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
- D06P1/67333—Salts or hydroxides
- D06P1/6735—Salts or hydroxides of alkaline or alkaline-earth metals with anions different from those provided for in D06P1/67341
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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
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/58—Material containing hydroxyl groups
- D06P3/60—Natural or regenerated cellulose
- D06P3/66—Natural or regenerated cellulose using reactive dyes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
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Abstract
The present invention relates to cotton fabric dyeing process technical fields, and in particular to a kind of salt-free dyeing technique of cotton fabric includes the following steps：(1) cotton fabric is pressed into bath raio 1:10-15 be added pretreatment fluid in, 60-80 DEG C at a temperature of handle 15-25min, then cooling, neutralization, drain, washing, obtain modified cotton fabric；(2) modified cotton fabric is pressed into bath raio 1:10-15 be added dye liquor in, 50-70 DEG C at a temperature of handle 50-70min, then neutralize, wash, soaping, wash to get to dye after cotton fabric；The weight average molecular weight of the cationic polyacrylamide is 29000-34000g/mol.The present invention is by realizing the salt-free dyeing of cotton fabric to cationic polyacrylamide molecular weight and the control of dyeing condition, obtained cotton fabric good level-dyeing property, and color fastness is high.
Description
Technical field
The present invention relates to cotton fabric dyeing process technical fields, and in particular to a kind of salt-free dyeing technique of cotton fabric.
Background technique
Cotton fabric is dyed by reactive dye at present, and Dyeing with Reactive Dyes is needed using a large amount of nothing
Machine salt carries out rush dye, to improve the dye-uptake of dyestuff, obtains deeper color performance.Because inorganic salts belong to powder, at present not
It is able to achieve automatic filling, a cylinder needs 1 to 2 ton of salt (salt or anhydrous sodium sulphate) in large cylinder actual production process, and feed intake process
Workload is very heavy, the health of the auxiliary agent dust flown upward also unfavorable employee, while a large amount of inorganic salts are dissolved in dyeing
In raffinate, the difficulty and cost of sewage treatment are considerably increased.For with this, deep grind has been gone to cotton fabric salt-free dyeing
Study carefully and improves.
The difficult point of cotton fabric salt-free dyeing is：Cotton fiber and the equal negatively charged of reactive dye, therefore reactive dye are difficult to
It is attached directly on cotton fiber.Currently, cotton fiber cation modifying is a kind of more effective to solve the problems, such as reactive dyeing
One of approach.There are many kinds of the cation modifiers for cotton fiber reported at present, is largely divided into response type and absorbent-type,
The problem of response type is primarily present be：Dosage is big, stability is poor, is also easy to cause the reduction of fibre strength；Absorbent-type is mainly deposited
The problem of be：Dyefastness is lower, and based on high polymer, molecular weight is difficult to control, and batch dyeing effect difference is big.
Summary of the invention
In order to overcome shortcoming and defect existing in the prior art, the purpose of the present invention is to provide a kind of nothings of cotton fabric
Salt dyeing technique, by realizing the salt-free of cotton fabric to cationic polyacrylamide molecular weight and the control of dyeing condition
Dyeing, obtained cotton fabric good level-dyeing property, color fastness are high.
The purpose of the invention is achieved by the following technical solution：
A kind of salt-free dyeing technique of cotton fabric, includes the following steps：
(1) cotton fabric is pressed into bath raio 1:10-15 is added in pretreatment fluid, cationic polyacrylamide in the pretreatment fluid
Concentration be 4-10g/L, concentration of caustic soda 2-6g/L, 60-80 DEG C at a temperature of handle 15-25min, then cool down, neutralize,
Drain, washing, obtain modified cotton fabric；
(2) modified cotton fabric is pressed into bath raio 1:10-15 be added dye liquor in, 50-70 DEG C at a temperature of handle 50-70min,
Then it neutralizes, wash, soaping, washing to get the cotton fabric to after dyeing；
Wherein, the cationic polyacrylamide is made of the raw material of following parts by weight：
The weight average molecular weight of the cationic polyacrylamide is 29000-34000g/mol.
Wherein, the cationic monomer by dimethyl diallyl ammonium chloride, acrylyl oxy-ethyl-trimethyl salmiac and
Dimethylaminoethyl methacrylate is by weight 1-4:1-3:The ratio of 1-3 forms.Pass through the choosing to cationic monomer type
Combination and proportion are selected, makes cationic polyacrylamide that there is wider pH value use scope (pH7-pH11), and can mention
The cationic degree (51.3%-58.4%) of high polyacrylamide, conducive to the cation-modified of cotton fiber.
Wherein, the chain-transferring agent is by sodium formate, sulfydryl b ammonium salt hydrochlorate and isopropanol by weight 1-2:1-3:1-3's
Ratio composition.By the selection combination and proportion to chain-transferring agent type, there is cationic polyacrylamide preferable long
Chainline type structure is easy to unfold in high temperature, to be conducive to adsorption activity dyestuff, completes coloring of the reactive dye to cotton fiber.
Wherein, the initiator is by ammonium persulfate and sodium sulfite by weight 1:1 ratio composition, causes polymerization speed
Fastly, polymerization can be caused at a lower temperature.
Wherein, the polymerization inhibitor is by hydroquinone and p-hydroxyanisole by weight 1-2:The ratio of 1-2 forms.Pass through
To the type selection of polymerization inhibitor and compounding, the molecular weight of cationic polyacrylamide can be effectively controlled, by its Weight-average molecular
Amount control is in 29000-34000g/mol.
Wherein, the preparation method of the cationic polyacrylamide includes the following steps：By acrylamide monomer, cation
After monomer, chain-transferring agent are uniformly dissolved with water, it is warming up to 60-80 DEG C, initiator and polymerization inhibitor is added, 1-3h is reacted, is centrifuged, washes
It washs, dry to get the cationic polyacrylamide is arrived.By control reaction condition and reaction step, sun can effectively improve
The yield of cationic polyacrylamide, weight average molecular weight are in the yield of the cationic polyacrylamide of 29000-34000g/mol
76.4%-83.5%.
It wherein, include reactive dye and soda ash in the dye liquor, the dosage of the reactive dye is 1-2wt%owf, described
The concentration of soda ash is 10-20g/L, and the dosage demand of reactive dye of the present invention is lower, and can be with by the dosage of control soda ash
The degree of fixation of reactive dye is improved, degree of fixation is up to 75%.
Further, the reactive dye are at least one of active red 3BS, active yellow 3 R S and active yellow M-3RE.
The especially suitable above-mentioned reactive dye of technique of the invention, relatively other reactive dye, such as active red KE-3B and active yellow
KE-4R can make cotton fabric have higher color fastness.
Wherein, the temperature soaped in the step (2) is 90-100 DEG C, and the time of soaping is 1-4min, effectively improves cotton and knits
The color fastness of object and gorgeous degree.
The beneficial effects of the present invention are：(1) present invention controls the cationic polyacrylamide generated by polymerization inhibitor
Molecular weight develops cation acrylamide to linear structure by chain-transferring agent, forms low molecular weight, is conducive to adsorption activity and contaminates
Material；(2) it is controlled by dyeing condition, realizes the salt-free dyeing of cotton fabric, obtained cotton fabric good level-dyeing property, color fastness
Height, the basic indifference of batch dyeing effect, to fibre strength substantially without negative effect.
Specific embodiment
For the ease of the understanding of those skilled in the art, below with reference to embodiment, the present invention is further illustrated, real
The content that the mode of applying refers to not is limitation of the invention.
Embodiment 1
A kind of salt-free dyeing technique of cotton fabric, includes the following steps：
(1) cotton fabric is pressed into bath raio 1:12.5 are added in pretreatment fluid, cationic polyacrylamide in the pretreatment fluid
Concentration be 7g/L, concentration of caustic soda 4g/L, 70 DEG C at a temperature of handle 20min, then cooling, neutralization, drain, washing,
Obtain modified cotton fabric；
(2) modified cotton fabric is pressed into bath raio 1:12.5 be added dye liquors in, 60 DEG C at a temperature of handle 60min, then in
With wash, soap, wash to get to dyeing after cotton fabric；
Wherein, the cationic polyacrylamide is made of the raw material of following parts by weight：
The weight average molecular weight of the cationic polyacrylamide is 29000g/mol.
Wherein, the cationic monomer by dimethyl diallyl ammonium chloride, acrylyl oxy-ethyl-trimethyl salmiac and
Dimethylaminoethyl methacrylate is by weight 2:1.5:1.5 ratio composition.
Wherein, the chain-transferring agent is by sodium formate, sulfydryl b ammonium salt hydrochlorate and isopropanol by weight 1.5:2:2 ratio
Composition.
Wherein, the initiator is by ammonium persulfate and sodium sulfite by weight 1:1 ratio composition.
Wherein, the polymerization inhibitor is by hydroquinone and p-hydroxyanisole by weight 1:1 ratio composition.
Wherein, the preparation method of the cationic polyacrylamide includes the following steps：By acrylamide monomer, cation
After monomer, chain-transferring agent are uniformly dissolved with water, 70 DEG C are warming up to, initiator and polymerization inhibitor is added, reacts 2h, centrifugation, is done washing
It is dry to get arrive the cationic polyacrylamide.
It wherein, include reactive dye and soda ash in the dye liquor, the dosage of the reactive dye is 1.5wt%owf, described
The concentration of soda ash is 15g/L.
Further, the reactive dye are by active red 3BS and active yellow 3 R S by weight 1:1 ratio composition.
Wherein, the temperature soaped in the step (2) is 95 DEG C, and the time of soaping is 2.5min.
Embodiment 2
A kind of salt-free dyeing technique of cotton fabric, includes the following steps：
(1) cotton fabric is pressed into bath raio 1:10 are added in pretreatment fluid, cationic polyacrylamide in the pretreatment fluid
Concentration is 4g/L, concentration of caustic soda 2g/L, 60-80 DEG C at a temperature of handle 15min, then cooling, neutralization, drain, washing,
Obtain modified cotton fabric；
(2) modified cotton fabric is pressed into bath raio 1:10 be added dye liquors in, 50 DEG C at a temperature of handle 50min, then neutralize,
It washes, soap, washing to get the cotton fabric to after dyeing；
Wherein, the cationic polyacrylamide is made of the raw material of following parts by weight：
The weight average molecular weight of the cationic polyacrylamide is 32000g/mol.
Wherein, the cationic monomer by dimethyl diallyl ammonium chloride, acrylyl oxy-ethyl-trimethyl salmiac and
Dimethylaminoethyl methacrylate is by weight 1:1:1 ratio composition.
Wherein, the chain-transferring agent is by sodium formate, sulfydryl b ammonium salt hydrochlorate and isopropanol by weight 1:1:1 ratio group
At.
Wherein, the initiator is by ammonium persulfate and sodium sulfite by weight 1:1 ratio composition.
Wherein, the polymerization inhibitor is by hydroquinone and p-hydroxyanisole by weight 1:2 ratio composition.
Wherein, the preparation method of the cationic polyacrylamide includes the following steps：By acrylamide monomer, cation
After monomer, chain-transferring agent are uniformly dissolved with water, 60 DEG C are warming up to, initiator and polymerization inhibitor is added, reacts 1h, centrifugation, is done washing
It is dry to get arrive the cationic polyacrylamide.
It wherein, include reactive dye and soda ash in the dye liquor, the dosage of the reactive dye is 1wt%owf, described pure
The concentration of alkali is 10g/L.
Further, the reactive dye are active yellow M-3RE.
Wherein, the temperature soaped in the step (2) is 90 DEG C, and the time of soaping is 1min.
Embodiment 3
A kind of salt-free dyeing technique of cotton fabric, includes the following steps：
(1) cotton fabric is pressed into bath raio 1:15 are added in pretreatment fluid, cationic polyacrylamide in the pretreatment fluid
Concentration is 10g/L, concentration of caustic soda 6g/L, 80 DEG C at a temperature of handle 15-25min, then cooling, neutralization, drain, water
It washes, obtains modified cotton fabric；
(2) modified cotton fabric is pressed into bath raio 1:15 be added dye liquors in, 70 DEG C at a temperature of handle 70min, then neutralize,
It washes, soap, washing to get the cotton fabric to after dyeing；
Wherein, the cationic polyacrylamide is made of the raw material of following parts by weight：
The weight average molecular weight of the cationic polyacrylamide is 34000g/mol.
Wherein, the cationic monomer by dimethyl diallyl ammonium chloride, acrylyl oxy-ethyl-trimethyl salmiac and
Dimethylaminoethyl methacrylate is by weight 4:3:3 ratio composition.
Wherein, the chain-transferring agent is by sodium formate, sulfydryl b ammonium salt hydrochlorate and isopropanol by weight 2:3:3 ratio group
At.
Wherein, the initiator is by ammonium persulfate and sodium sulfite by weight 1:1 ratio composition.
Wherein, the polymerization inhibitor is by hydroquinone and p-hydroxyanisole by weight 2:1 ratio composition.
Wherein, the preparation method of the cationic polyacrylamide includes the following steps：By acrylamide monomer, cation
After monomer, chain-transferring agent are uniformly dissolved with water, 80 DEG C are warming up to, initiator and polymerization inhibitor is added, reacts 3h, centrifugation, is done washing
It is dry to get arrive the cationic polyacrylamide.
It wherein, include reactive dye and soda ash in the dye liquor, the dosage of the reactive dye is 2wt%owf, described pure
The concentration of alkali is 20g/L.
Further, the reactive dye are active yellow 3 R S.
Wherein, the temperature soaped in the step (2) is 100 DEG C, and the time of soaping is 4min.
Embodiment 4
The present embodiment the difference from embodiment 1 is that：The reactive dye are active red KE-3B.
Embodiment 5
The present embodiment the difference from embodiment 1 is that：The reactive dye are active yellow KE-4R.
K/S value, washing fastness, color fastness to water, crock fastness and imbibition fastness are carried out respectively to the cotton fabric of embodiment 1-5
Test, wherein washing fastness, color fastness to water, crock fastness testing standard be respectively AATCC61, AATCC107, JIS
L0849, test result is as follows table：
As seen from the above table, cotton fabric color fastness made from salt-free dyeing technique of the invention is high, and water-wash resistance is good, and outstanding
It is applicable in active red 3BS, active yellow 3 R S and tri- kinds of dyestuffs of active yellow M-3RE, additionally surveys to the mechanical property of cotton fiber
Examination, as a result surface salt-free dyeing technique of the invention is on the mechanical strength of fiber substantially without influence.
Above-described embodiment is the preferable implementation of the present invention, and in addition to this, the present invention can be realized with other way,
Do not depart under the premise of present inventive concept it is any obviously replace it is within the scope of the present invention.
Claims (9)
1. a kind of salt-free dyeing technique of cotton fabric, it is characterised in that：Include the following steps：
(1) cotton fabric is pressed into bath raio 1:10-15 is added in pretreatment fluid, and cationic polyacrylamide is dense in the pretreatment fluid
Degree be 4-10g/L, concentration of caustic soda 2-6g/L, 60-80 DEG C at a temperature of handle 15-25min, then cool down, neutralize, row
Liquid, washing, obtain modified cotton fabric；
(2) modified cotton fabric is pressed into bath raio 1:10-15 be added dye liquor in, 50-70 DEG C at a temperature of handle 50-70min, then
It neutralizes, wash, soaping, washing to get the cotton fabric to after dyeing；
Wherein, the cationic polyacrylamide is made of the raw material of following parts by weight：
The weight average molecular weight of the cationic polyacrylamide is 29000-34000g/mol.
2. a kind of salt-free dyeing technique of cotton fabric according to claim 1, it is characterised in that：The cationic monomer by
Dimethyl diallyl ammonium chloride, acrylyl oxy-ethyl-trimethyl salmiac and dimethylaminoethyl methacrylate are by weight
1-4:1-3:The ratio of 1-3 forms.
3. a kind of salt-free dyeing technique of cotton fabric according to claim 1, it is characterised in that：The chain-transferring agent is by first
Sour sodium, sulfydryl b ammonium salt hydrochlorate and isopropanol are by weight 1-2:1-3:The ratio of 1-3 forms.
4. a kind of salt-free dyeing technique of cotton fabric according to claim 1, it is characterised in that：The initiator is by over cure
Sour ammonium and sodium sulfite are by weight 1:1 ratio composition.
5. a kind of salt-free dyeing technique of cotton fabric according to claim 1, it is characterised in that：The polymerization inhibitor is by benzene
Diphenol and p-hydroxyanisole are by weight 1-2:The ratio of 1-2 forms.
6. a kind of salt-free dyeing technique of cotton fabric according to claim 1, it is characterised in that：The cation polypropylene
The preparation method of amide includes the following steps：After acrylamide monomer, cationic monomer, chain-transferring agent are uniformly dissolved with water,
Be warming up to 60-80 DEG C, initiator and polymerization inhibitor be added, react 1-3h, centrifugation, centrifugation, washing, it is dry to get to the sun from
Sub- polyacrylamide.
7. a kind of salt-free dyeing technique of cotton fabric according to claim 1, it is characterised in that：It include living in the dye liquor
Property dyestuff and soda ash, the dosage of the reactive dye is 1-2wt%owf, and the concentration of the soda ash is 10-20g/L.
8. a kind of salt-free dyeing technique of cotton fabric according to claim 7, it is characterised in that：The reactive dye are to live
At least one of the red 3BS of property, active yellow 3 R S and active yellow M-3RE.
9. a kind of salt-free dyeing technique of cotton fabric according to claim 1, it is characterised in that：Soap in the step (2)
The temperature washed is 90-100 DEG C, and the time of soaping is 1-4min.
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| CN110158330A (en) * | 2019-05-21 | 2019-08-23 | 清远瑞华助剂有限公司 | A kind of compound salt-free dyeing and finishing technology |
| CN110655609A (en) * | 2019-04-30 | 2020-01-07 | 杭州肄康新材料有限公司 | Textile dye fixing agent and application thereof |
| WO2022237722A1 (en) | 2021-05-12 | 2022-11-17 | 青岛大学 | Alginate fiber and preparation method therefor |
| CN115707824A (en) * | 2021-08-19 | 2023-02-21 | 东莞中研智造纺织科技有限公司 | High-color-fastness dyeing process for reactive denim fabric |
| CN115748271A (en) * | 2022-10-26 | 2023-03-07 | 浙江海联新材料科技有限公司 | Ternary polymerization efficient formaldehyde-free color fixing agent for reactive dye and preparation method thereof |
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| CN115748271A (en) * | 2022-10-26 | 2023-03-07 | 浙江海联新材料科技有限公司 | Ternary polymerization efficient formaldehyde-free color fixing agent for reactive dye and preparation method thereof |
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|---|---|
| CN108914630B (en) | 2021-02-19 |
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