CN102504177A - Preparation method of water-based polyurethane softening and finishing agent for denim fabrics - Google Patents
Preparation method of water-based polyurethane softening and finishing agent for denim fabrics Download PDFInfo
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- CN102504177A CN102504177A CN2011103378865A CN201110337886A CN102504177A CN 102504177 A CN102504177 A CN 102504177A CN 2011103378865 A CN2011103378865 A CN 2011103378865A CN 201110337886 A CN201110337886 A CN 201110337886A CN 102504177 A CN102504177 A CN 102504177A
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Abstract
The invention discloses a preparation method of a water-based polyurethane softening and finishing agent for denim fabrics, which includes the following steps of firstly adding organic solvent of N-methyl pyrrolidinone, IPDI (isophorone diisocyanate), HDI (hexamethylene diisocyanate) and dibutyltin dilaurate in catalytic dosage into a reactor full of inert gas sequentially, heating and dissolving; secondly, mixing and dissolving metered polyether-modified organic silicone oil, dimethylolpropionic acid with the N-methyl pyrrolidinone in proper volume, then dropping the mixed liquor into the reactor for reacting for 1 to 5 hours at the controlled temperature, and accordingly obtaining a prepolymer; thirdly adding diethyl methyl benzene diamine chain extender into the reactor for chain extending reaction for 1 to 4 hours after the obtained prepolymer is subjected to end closing and neutralization sequentially, and finally adding deionized water and mixing uniformly to obtain the water-based polyurethane softening and finishing agent. The water-based polyurethane softening and finishing agent prepared by the preparation method has the advantages of excellent crosslinking performance, water and oil resistance, fine wear resistance and yellowing resistance, safety and innocuity and the like, the denim fabrics after being treated are soft and smooth in touch, fine in permeability and free of irritation to skin.
Description
Technical field:
It is soft to the present invention relates to a kind of JEAN use urethane, particularly a kind of preparation method of JEAN use urethane soft finishing agent.
Background technology:
Jeans do not go downhill permanently in International Garment Market because of having unique charm wear-resisting, wide, comfortable and easy to wear.Jean topical finish technology is to make JEAN have the critical process of individual style.Along with the progress of industrial technology, the exploitation of New-type adjuvant, jean topical finish processing has had bigger development on the basis of traditional technology.JEAN can improve the thick and stiff feel of fabric through after the softening, gives JEAN softness, smooth hand feeling, and snugness of fit improves greatly.Softening agent commonly used is silicone based softening agent, fat hydrocarbon softening agent.Their function singlenesses also must add relevant auxiliary agent when need obtaining other excellent function, for postfinishing process brings the complicated operations program, and repeat a large amount of volatile organic solvents that use, and bring huge pollution to environment.Organic silicon modified polyurethane family macromolecule material not only has the excellent properties of polyurethane material, also has organosilyl various characteristics.Aqueous polyurethane especially contains the ionic aqueous polyurethane, is good fabric finishing agent.
Summary of the invention:
Goal of the invention:, the invention provides a kind of preparation method of JEAN use urethane soft finishing agent to the defective that prior art exists.
Technical scheme: for realizing the foregoing invention purpose, the present invention adopts following technical scheme:
A kind of preparation method of JEAN use urethane soft finishing agent; May further comprise the steps: (1) adds the dibutyl tin laurate of organic solvent N-Methyl pyrrolidone, isophorone diisocyanate IPDI, hexamethylene diisocyanate HDI and catalytic amount in being full of the reaction kettle of rare gas element, and it is for use to be heated to 70 ℃ of dissolvings; After the polyether-modified organic silicone oil that (2) will measure, dimethylol propionic acid and appropriate amount of organic N-Methyl pyrrolidone are miscible; Slowly be added drop-wise in the described reaction kettle of step (1); In 80 ~ 105 ℃ of following temperature control reaction 1 ~ 5h; Obtain prepolymer product, (3) add saturated sodium sulfite solution and carry out end capping in the prepolymer product that is obtained; (4) add the triethylamine neutralizing agent, regulate pH=6 ~ 8; (5) in reaction kettle, add diethoxy tolylene diamine chainextender, carry out chain extending reaction 1 ~ 4h, add deionized water at last, mixing obtains product.
The mass ratio of said IPDI and HDI is 1.0 ~ 5.0:1.
Said polyether-modified organic silicone oil is the polyoxyethylene groups YSR 3286.
According to above technical scheme; Can realize following beneficial effect: compared with prior art, the present invention has the following advantages: the present invention obtains JEAN use urethane soft finishing agent, has good bridging property; Advantages such as safety non-toxic; JEAN after treatment is soft along sliding, and good permeability is to the stingless excitation of skin.
Embodiment:
Below in conjunction with embodiment the present invention is done detailed description further, but the scope that the present invention requires to protect is not limited to the scope that embodiment representes.
Embodiment 1:
In the reaction kettle that is full of nitrogen or rare gas element, add organic solvent N-Methyl pyrrolidone (150.0kg) and IPDI (300.0kg) successively, HDI (105.0kg), two LAURIC ACID 99 MIN diisobutyl tin (1.35kg) of catalytic amount are heated to 70 ℃ of dissolvings under stirring; In reaction kettle, slowly drip polyoxyethylene groups YSR 3286 (300.0kg) and dimethylol propionic acid (18.0kg) and N-Methyl pyrrolidone (62.0kg) mixing solutions, controlled temperature drips and finishes at 80 ~ 105 ℃; Insulation reaction 1 ~ 5h adds the saturated sodium sulfite solution of end-capping reagent (125.0kg), carries out end capping 1 ~ 2h; Then reaction solution is cooled to 80 ℃, adds triethylamine (12.0kg) neutralizing agent, reaction 1h; Make PH=6.9, obtain end capped urethane, in reaction kettle, add diethoxy tolylene diamine (108.00kj) chainextender; Carry out chain extending reaction 1 ~ 4h, add deionized water (1680.0kg), mixing obtains product.
Claims (3)
1. the preparation method of a JEAN use urethane soft finishing agent; It is characterized in that; May further comprise the steps: (1) adds the dibutyl tin laurate of organic solvent N-Methyl pyrrolidone, isophorone diisocyanate IPDI, hexamethylene diisocyanate HDI and catalytic amount in being full of the reaction kettle of rare gas element, and it is for use to be heated to 70 ℃ of dissolvings; After the polyether-modified organic silicone oil that (2) will measure, dimethylol propionic acid and appropriate amount of organic N-Methyl pyrrolidone are miscible; Slowly be added drop-wise in the described reaction kettle of step (1); In 80 ~ 105 ℃ of following temperature control reaction 1 ~ 5h; Obtain prepolymer product, (3) add saturated sodium sulfite solution and carry out end capping in the prepolymer product that is obtained; (4) add the triethylamine neutralizing agent, regulate pH=6 ~ 8; (5) in reaction kettle, add diethoxy tolylene diamine chainextender, carry out chain extending reaction 1 ~ 4h, add deionized water at last, mixing obtains product.
2. according to the preparation method of the said JEAN use of claim 1 urethane soft finishing agent, it is characterized in that: the mass ratio of said IPDI and HDI is 1.0 ~ 5.0:1.
3. according to the preparation method of the said JEAN use of claim 1 urethane soft finishing agent, it is characterized in that: said polyether-modified organic silicone oil is the polyoxyethylene groups YSR 3286.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103378865A CN102504177A (en) | 2011-11-01 | 2011-11-01 | Preparation method of water-based polyurethane softening and finishing agent for denim fabrics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011103378865A CN102504177A (en) | 2011-11-01 | 2011-11-01 | Preparation method of water-based polyurethane softening and finishing agent for denim fabrics |
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| CN102504177A true CN102504177A (en) | 2012-06-20 |
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| CN2011103378865A Pending CN102504177A (en) | 2011-11-01 | 2011-11-01 | Preparation method of water-based polyurethane softening and finishing agent for denim fabrics |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104372691A (en) * | 2014-12-11 | 2015-02-25 | 香港理工大学 | Reactive-dye surface dyeing auxiliary and preparation method and application thereof |
| CN104532590A (en) * | 2014-12-23 | 2015-04-22 | 纤化（上海）生物化工股份有限公司 | Denim anti-oxidant yellowing finishing agent and preparation process thereof |
| CN104947430A (en) * | 2015-07-08 | 2015-09-30 | 石忠 | Environment-friendly garment material finishing auxiliary |
| CN109503789A (en) * | 2018-12-02 | 2019-03-22 | 广州市斯洛柯高分子聚合物有限公司 | A kind of polyurethane-modified silicone resin emulsion and its preparation method and application |
-
2011
- 2011-11-01 CN CN2011103378865A patent/CN102504177A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104372691A (en) * | 2014-12-11 | 2015-02-25 | 香港理工大学 | Reactive-dye surface dyeing auxiliary and preparation method and application thereof |
| CN104532590A (en) * | 2014-12-23 | 2015-04-22 | 纤化（上海）生物化工股份有限公司 | Denim anti-oxidant yellowing finishing agent and preparation process thereof |
| CN104532590B (en) * | 2014-12-23 | 2016-08-24 | 纤化（上海）生物化工股份有限公司 | A kind of cowboy's anti-oxidant xanthochromia finishing agent and manufacturing process thereof |
| CN104947430A (en) * | 2015-07-08 | 2015-09-30 | 石忠 | Environment-friendly garment material finishing auxiliary |
| CN109503789A (en) * | 2018-12-02 | 2019-03-22 | 广州市斯洛柯高分子聚合物有限公司 | A kind of polyurethane-modified silicone resin emulsion and its preparation method and application |
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Application publication date: 20120620 |