CN102605657A - Modified one-bath dyeing technology of polyester/rayon fabric dispersed microcapsule/active dye - Google Patents

Abstract

The invention belongs to the technical field of spinning dying and particularly relates to a modified one-bath dyeing technology of polyester/rayon fabric dispersed microcapsule/active dye. The dispersed microcapsule slow release dacron assistant-free dyeing process and the fabric modified salt-free and alkali-free dying process are combined for replacing the traditional dispersed/active two-bath method and the dispersed/active one-bath method dying process in recent years, the problems of low production efficiency, great water, electricity and steam consumption and great sewage discharge quantity of the two-bath method are solved, the problems of dye hydrolysis deep dying difficulty and poor dying color fastness of the one-bath method adopting a great number of dispersing agents, uniform dying agents, salt and alkali are solved, the active dying rate is improved, the reduction soaping is omitted, the dying period is shortened, the water is saved, the energy is saved, the sewage is reduced, the clean production is reached, and greater social and economic benefits are realized.

Description

Polyester-cotton blend/binding textiles disperses microcapsules/REACTIVE DYES modification one-bath process technology

Technical field

The invention belongs to technical field of textile printing, relate in particular to a kind of polyester-cotton blend/binding textiles with disperseing microcapsules/REACTIVE DYES modification one-bath process technology.

Background technology

Polyester-cotton blend/binding textiles is the conventional big series products of textiles, generally will select two kinds of dyeings for use.Disperse and active two kinds of main dyestuffs that dyestuff is the multicomponent textile dyeing; They are used for dying polyester and cellulose fibre respectively; These two kinds of dyeing performances and process conditions difference are big, adopt two bath methods to dye the multicomponent fabric mostly, and dyeing is long; Working (machining) efficiency is low, and water consumption power consumption and quantity of wastewater effluent are big.

Textile printing and dyeing industry is the water rich and influential family always, and quantity of wastewater effluent is big in the printing and dyeing process, and people's life and surrounding enviroment have been produced bad influence; Under government's environmental protection policy pressure; Environmental requirement improves constantly, in order to improve problems such as water, the energy, environmental pollution, the protection environment; Reduce to pollute, research energy-saving and emission-reduction, short flow process dyeing and printing process are very important.

The also release dispersion and active single bath process dedicated dye in recent years of external Japanese chemical drug company, though respond well, can only be used for light color; Not all right to dark color, because of dye-uptake is low, also there is the materials waste; Its dyeing cost is very high, and the refined fortune in Shanghai company also develops the dyestuff identical with Japanese chemical drug.Performance is close, and price is also high.

Therefore, numerous in recent years dyer authors, the much short flow process of developmental research, one-bath dyeing technology; Compare with two-bath process, tube has been changed the dyeing flow process, shortens man-hour; Enhance productivity, conserve water and discharge, but still use a large amount of dyeing assistants; Dyeing assistant has dispersant, levelling agent, glauber salt, and post processing is soaped can influence the REACTIVE DYES that dying with caustic soda, sodium hydrosulfite, and the problem of dyeing waste such as a large amount of COD is arranged; Bring pressure to sewage disposal, still there is a big difference with the target of cleaner production.

Cleaner production requires promptly, and dyeing reaches the dye exhausting rate tidemark; Discharge of wastewater reaches and has basically no sewage or zero sewage in the production; The little glue of the dyeing terylene technology of assisting meets cleaner production at present; Assisted slow release method to be applied in the weaving in little glue the sixth of the twelve Earthly Branches when abroad Japan was since the nineties, uses maturation for a long time, and domestic is to open dangerous Application Research and popularization over the years.

Assist from DISPERSE DYES being processed little glue, utilize little glue to assist slow release that dacron is dyeed, need not to use dispersant and levelling agent can reach the requirement of dyeing.Owing to do not have dispersant and levelling agent solubilization cloth cover loose colour to reduce, look water is also clear than imitating, and can remove conventional reduction from and clean, and saves caustic soda and the sodium hydrosulfite reduction technology of soaping, shortening man-hour, saving energy consumption.

So disperse little glue to assist technology in using BLENDED FABRIC this, disperse little glue to assist and active one-bath process.Significantly advantage is: no DISPERSE DYES sewage produces, and exempts from reducibility and soaps, and exempts from dispersant and levelling agent, and to active co-bathing dyeing, because little glue is assisted at the slow release of imitating high-temperature, dispersion is not competed to dye cotton fine, soaps without reducibility after dying.

Though utilize microcapsule disperse dye that the HTHP of terylene is not had the advantage of auxiliary agent dyeing, no sewage can reach good Color with the REACTIVE DYES one-bath process; But still exist large amount of sewage to produce after the water-soluble reactive colour dyeing; Fail to reach exhaustion dyeing, need add glauber salt and urge to dye, basic dyeing adds alkaline agent and still has partly dyestuff hydrolysis; Therefore, also need consider cleaner production importance.

Summary of the invention

Consider in the improvement: the plain and microcapsule disperse dye one-bath dyeing of the refined fortune of application of high temperatures non-alkali NF Accord; Good Color can be obtained, the requirement (3 one 5 grades) of level dyeing and high color fastness can be satisfied. this process is owing to eliminated the solubilization of auxiliary agent, and the loose colour of dyeing back fiber surface reduces significantly; Can save the caustic soda/sodium hydrosulfite reduction cleaning operation of dacron; Avoided the destruction of reduction cleaning, and shortened dyeing cycle, saved water and energy REACTIVE DYES.

Analyze: REACTIVE DYES also need add a large amount of glauber salt to be urged to dye, though these alkali-free REACTIVE DYES can add alkaline agent, makes not contain COD in the waste water; Certain limitation is also arranged, and high temperature non-alkali REACTIVE DYES are can be under the alkali-free situation; This dyestuff nicotinic acid class active gene can with fiber generation bonding, but the not enough rate of dye-uptake is high, is fit to do light color; Can not dye dark color, dye loss.Its two, conventional REACTIVE DYES are also need add glauber salt and alkaline agent, the single bath process basic dyeing, active hydrolysis is more serious.

Consideration improves the REACTIVE DYES dye-uptake to the fine modification of cotton, utilizes the rate raising is proposed in REACTIVE DYES utilization after the fine modification of cotton, and dyeing reaches exhaustion dyeing, reduces sewage and produces and discharge.

Under salt-free alkali-free, can reach more than 95% after the cotton fine modification, dye liquor can be colourless basically, and COLOR FASTNESS is soaped 4 grades, and 3 grades of wet frictions can reach 4 grades of COLOR FASTNESS through adding small amount of alkali and color-fixing agent.

Therefore,, improve the REACTIVE DYES dye-uptake, utilize the rate raising is proposed in REACTIVE DYES utilization after the cotton modification the fine modification of cotton,

Embodiment:

1. fabric-modifying → microcapsule disperse dye combines with salt-free, non-alkali dyeing scheme

2. fabric-modifying → microcapsule disperse dye combines with salt-free, neutral/low alkali dyeing scheme

Below be embodiment:

Embodiment 1. dyes, and shallow/middle yarn-dyed fabric modification → microcapsule disperse dye combines with salt-free, non-alkali dyeing scheme

Technological process: plain active (high temperature does not have basic dye) ten PH stabilizing agent 2g → intensification 95-100 ℃ of insulation 10-20min → 130 ℃ insulation 20-30min → cooling → cold wash → hot water wash (or gently soaping) → cold wash of fabric-modifying 3 ~ 5 g looks or other medium modifier → microcapsule disperse dye and NF Accord.

Implement real row 2. dye in/deep-colour fabric modification → microcapsule disperse dye combines with salt-free, neutral dyeing scheme

Technological process: 60 ~ 80 ℃ of insulations of fabric-modifying 3 ~ 5 g look medium or other modifier → microcapsule disperse dye and low alkali type REACTIVE DYES ten PH ealkaline buffer 2g → intensification, 20 ~ 30min → 130 ℃ insulation 25 ~ 30min → cooling → cold wash → (hot water wash or gently soap) → cold wash.

During embodiment 3. dyes/deep-colour fabric modification → microcapsule disperse dye and salt-free, low alkali dyeing scheme

Technological process: fabric-modifying 3 ~ 5 g look medium or other modifier → microcapsule disperse dye and high temperature modification alkalescence REACTIVE DYES ten PH ealkaline buffer 2g → 60 ~ 80 ℃ of insulations of intensification, 20 ~ 30min → 130 ℃ insulation 25 ~ 30min → cooling → cold wash → hot water wash (or gently soaping) → cold wash.

During embodiment 4. dyes/deep-colour fabric modification → microcapsule disperse dye and salt-free, low alkali dyeing scheme

Technological process: fabric-modifying 3 ~ 5 g look medium or other modifier → microcapsule disperse dye and high temperature modification alkalescence type REACTIVE DYES ten → heating up 60 ~ 80 ℃ adds 1 ~ 2g alkaline agent, ℃ insulation 25 ~ 30min → cooling → cold wash → hot water wash (or gently soaping) → cold wash of insulation 20 ~ 30min → 130.

Implement explanation:

1. modification: look medium or other modifier, behind the fabric-modifying, can reactive dye salt-free, non-alkali dyeing; Dye-uptake Gao Keda is more than 95%, and the usefulness that has can reach 98 ~ 99%, the dyeing cold wash; Remove cold wash wet rubbing COLOR FASTNESS and be 3. other be more than 4, after soaping, be more than 4 ~ 5 entirely; Soap and adopt the special-purpose irreducibility soaping agent of blending, cotton good with soaping agent.

2. REACTIVE DYES: select for use high temperature modification not have basic dye/novel low basic active dyestuff/high temperature modification alkalescence REACTIVE DYES commonly used respectively.

3. pH value: the PH stabilizing agent is to transfer 7, and the PH ealkaline buffer is to fall slippage after the alkaline rising temperature earlier, also can add low alkali 1 ~ 2g/L on a small quantity; When temperature improved the REACTIVE DYES set during this was auspicious; Do not influence hydrolysis of reactive dye after the rising temperature, dyeing adds the PH buffer, or adds alkali on a small quantity; Or dye the post-reinforcing toner, all be for further improving REACTIVE DYES soap Xian and wet rubbing fastness.

Press GB/T 3920-1997 " textile color stability test colour fastness to rubbing " survey formula.

The COLOR FASTNESS table of comparisons 1.

The COLOR FASTNESS table of comparisons 2.

Reference literature

Middle National IP Network Fujian phoenix bamboo share cotton knitwear disperses, REACTIVE DYES-bath method dyeing research

Online extra large Donghua University magazine document microcapsule disperse dye/REACTIVE DYES polyester-cotton blend one-bath dyeing process initial probe, Wang Xiaowen know in China; Zheng Hao; Luo Yan; 2007 the 04th phases of Chen Shui woods Donghua University journal (natural science edition)

The salt-free non-alkali dyeing new technology of middle Guangdong dolantin company of National IP Network " look medium "

Middle National IP Network " the fine inspection of China " salt-free non-alkali dyeing new technology of the 10th phase new technology " look medium " in 2010

The salt-free dyeing technology of china textile scientific and technical information network modified cotton fabric

The salt-free basic active dyeing of the cotton knitted cloth of middle National IP Network's " printing and dyeing " 2009 the 18th phases look medium modification

The middle Guo Lu of Xi'an Polytechnic University of National IP Network star Wang Xue swallow modified cotton fabric and Research on Dyeing thereof

Kong Liangsun swallow reactive dye salt-free Study on Technology of Dyeing progress is thanked to by middle National IP Network

Claims (10)

1. the invention belongs to technical field of textile printing, relate in particular to a kind of polyester-cotton blend/binding textiles, combine with the salt-free alkali-free of fabric-modifying/low alkali dyeing through disperseing microcapsules slowly-releasing terylene not have auxiliary agent dyeing with disperseing microcapsules/REACTIVE DYES modification one-bath process technology; Substitute tradition dispersions/active two bath methods and dispersions/active one-bath dyeing technology in recent years, change two bath method production efficiencys are low, and water, electricity, vapour consumption are big; Quantity of wastewater effluent is big, changes a large amount of use dispersants, levelling agent, salt, alkali and the hydrolysis of single bath process dyestuff and dyes dark difficulty, staining fastness difference problem, has improved active dye-uptake; Having saved reduction soaps; Shorten dyeing cycle, save water and energy, reduce sewage; Reach cleaner production, have than great society and economic benefit.

2. like the said polyester-cotton blend/binding textiles of claim 1., there is not auxiliary agent dyeing through disperseing microcapsules slowly-releasing terylene, former system Japanese microcapsules slowly-releasing textile application technology; Utilize the dyeing of heat resistance slowly-releasing; Need not add the dye solubilization auxiliary agent, its dyeing back cloth cover loose colour is few, can remove reduction cleaning from.

3. like the said polyester-cotton blend/binding textiles of claim 1., through the salt-free alkali-free of fabric-modifying/low alkali dyeing, the Japanese textile dyeing and finishing technology of former system is utilized modification, improves dye-uptake, reduces look water, can salt-free alkali-free or salt-free low alkali.

4. like the said polyester-cotton blend/binding textiles of claim 1., combine through two technology, make the active dye-uptake that improves, reduce look water, the two-bath process production efficiency that changes the status quo is low, and water, electricity, vapour consumption are big, and quantity of wastewater effluent is big.

5. like the said polyester-cotton blend/binding textiles of claim 1., combine, change a large amount of use dispersants, levelling agent, salt, alkali and the hydrolysis of single bath process dyestuff and dye dark difficulty, staining fastness difference problem through two technology.

6. like the said polyester-cotton blend/binding textiles of claim 1.; Combine through two technology, compare, improved REACTIVE DYES dye-uptake and fixation rate than simple " polyester-cotton blend disperses microcapsules/REACTIVE DYES polyester-cotton blend one-bath process technology "; Reduce sewage discharge, reach cleaner production.

7. the embodiment 1. of addressing the specification explanation like claim 1. dyes shallow/middle look; Fabric-modifying → microcapsule disperse dye combines technological process with salt-free, non-alkali dyeing scheme: plain active (high temperature does not have basic dye) ten PH stabilizing agent 2g → intensification 95-100 ℃ of insulation 10-20min → 130 ℃ insulation 20-30min → cooling → cold wash → hot water wash (or gently soaping) → cold wash of fabric-modifying 3 ~ 5 g looks or other medium modifier → microcapsule disperse dye and NF Accord.

8. that the embodiment 2. of addressing the specification explanation like claim 1. dyes is shallow/in/dark color; Fabric-modifying → microcapsule disperse dye combines technological process with salt-free, neutral dyeing scheme: 60 ~ 80 ℃ of insulations of fabric-modifying 3 ~ 5 g look medium or other modifier → microcapsule disperse dye and low alkali type REACTIVE DYES ten PH ealkaline buffer 2g → intensification, 20 ~ 30min → 130 ℃ insulation 25 ~ 30min → cooling → cold wash → (hot water wash or gently soap) → cold wash.

9. that the embodiment 3. of addressing the specification explanation like claim 1. dyes is shallow/in/dark color; Fabric-modifying → microcapsule disperse dye and salt-free, low alkali dyeing scheme, technological process: fabric-modifying 3 ~ 5 g look medium or other modifier → microcapsule disperse dye and high temperature modification alkalescence REACTIVE DYES ten PH ealkaline buffer 2g → 60 ~ 80 ℃ of insulations of intensification, 20 ~ 30min → 130 ℃ insulation 25 ~ 30min → cooling → washing → hot water wash (or gently soaping) → cold wash.

10. address in the embodiment of specification explanation/deep-colour fabric modification → microcapsule disperse dye and salt-free, low alkali dyeing scheme technological process like claim 1.: fabric-modifying 3 ~ 5 g look medium or other modifier → microcapsule disperse dye and high temperature modification alkalescence type REACTIVE DYES ten → heat up 60 ~ 80 ℃ add 1 ~ 2g alkaline agent, be incubated 20 ~ 30min → 130 ℃ is incubated 25 ~ 30min → cooling → cold wash → hot water wash (or gently soaping) → cold wash.