CN103526561A - Synthesis technology of superfine fiber nonwoven synthetic leather subjected to PVA (polyvinyl acetate) pretreatment - Google Patents
Synthesis technology of superfine fiber nonwoven synthetic leather subjected to PVA (polyvinyl acetate) pretreatment Download PDFInfo
- Publication number
- CN103526561A CN103526561A CN201310447267.0A CN201310447267A CN103526561A CN 103526561 A CN103526561 A CN 103526561A CN 201310447267 A CN201310447267 A CN 201310447267A CN 103526561 A CN103526561 A CN 103526561A
- Authority
- CN
- China
- Prior art keywords
- pva
- synthetic leather
- superfine fibre
- woven synthetic
- synthesis technique
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
The invention relates to a synthesis technology of superfine fiber nonwoven synthetic leather subjected to PVA pretreatment. The technological processes are as follows: nonwoven substrate, PVA pretreatment, PU (poly urethane) solution impregnation, PU wet solidification, hot water treatment, drying, steaming alkali reduction treatment, spin-drying, washing and drying. The synthesis technology has the benefits as follows: after the nonwoven substrate is subjected to PVA pretreatment, the gap between the PU and the nonwoven substrate is enlarged, so that an NaOH solution enters the inside more easily, dissolving of COPET is promoted, and tensile strength, tearing strength, moisture permeability, air permeability and elasticity of Beth leather can be improved; and during washing, a soluble polymer can be washed and cleaned better, and the work benefit is increased.
Description
Technical field
The invention belongs to fiber synthesis technical field, be specifically related to a kind of synthesis technique through the non-woven synthetic leather of the pretreated superfine fibre of PVA.
Background technology
The non-woven synthetic leather of superfine fibre has three-dimensional structure, shown to natural grain and removed from office similar characteristic, but also had certain gap with natural leather aspect elasticity, sucting wet air permeability and resiliency, and its tearing strength is on the low side aspect rigidity and ductility.Therefore, the problem that how to improve the performances such as elasticity, sucting wet air permeability and brute force of the non-woven synthetic leather of superfine fibre causes that people pay close attention to, becoming one of problem that the non-woven synthetic leather of superfine fibre field need to solve, is one of method of improving above-mentioned performance as filler and utilize polyvinyl alcohol (PVA).
Summary of the invention
In order to solve problems of the prior art, the invention provides a kind of synthesis technique through the non-woven synthetic leather of the pretreated superfine fibre of PVA, to improve the performances such as elasticity, sucting wet air permeability and brute force of the non-woven synthetic leather of superfine fibre.
Through a synthesis technique for the non-woven synthetic leather of the pretreated superfine fibre of PVA, technological process is as follows:
Solidify → hot water treatment of nonwoven substrates → PVA preliminary treatment → dipping PU solution → PU wet method → be dried → evaporate alkali decrement treatment → drying → washing → dry.
Further, the PA that described nonwoven substrates is 30:70 and COPET island superfine fiber needle fabric, its surface density is 600g/m2, thickness is 3.5mm;
Further, described PVA pretreating process is: enter the first groove, in the first groove, the mass fraction of PVA solution is 5%, and temperature is controlled at 60 ℃～70 ℃, and impregnation time 3min, tentatively shrinks base material, prevents from shrinking the too fast cloth cover out-of-flatness that causes because of base material; Enter the second groove, the mass fraction of the second groove PVA solution is 5% again, and temperature is controlled at 85 ℃～95 ℃, and impregnation time 5min, is shunk base material fully; Padding machine speed 7m/min, pressure 9.8N, 118 ℃ of bake out temperatures;
Further, described PU wet method is solidified and is referred to 20min in the DMF solution of 40 ℃ of base material placements, then washing is dried;
Further, described hot water treatment refers to uses hot water injection's base material, to remove the PVA solution on base material.
The beneficial effect that the present invention has is: nonwoven substrates is carried out after PVA preliminary treatment, space between PU and nonwoven substrates increases, make NaOH solution more easily enter into inside, promote the dissolving of COPET, can improve the tensile strength of bass leather and tear brute force, poisture-penetrability and gas permeability and elasticity.During washing, soluble polymer can be washed totally better, has improved working efficiency.
The specific embodiment
In order further to understand advantage of the present invention, below by specific embodiment, effect of the present invention is described.
Embodiment mono-:
Through a synthesis technique for the non-woven synthetic leather of the pretreated superfine fibre of PVA, technological process is as follows:
Solidify → hot water treatment of nonwoven substrates → PVA preliminary treatment → dipping PU solution → PU wet method → be dried → evaporate alkali decrement treatment → drying → washing → dry.
Described nonwoven substrates is PA and the COPET island superfine fiber needle fabric of 30:70, and its surface density is 600g/m2, and thickness is 3.5mm.
Described PVA pretreating process is: enter the first groove, in the first groove, the mass fraction of PVA solution is 5% (the PVA degree of polymerization 1799, alcoholysis degree 99%), temperature is controlled at 60～70～C, impregnation time 3min, tentatively shrinks base cloth, has prevented that Yin Jibu from shrinking the too fast cloth cover out-of-flatness that causes; Enter the second groove, the mass fraction of the second groove PVA solution is 5% again, and temperature is controlled at 85～95～C, and impregnation time 5min, is shunk base cloth fully; Padding machine speed 7m/min, pressure 9.8N, 118 ℃ of bake out temperatures.
Described PU wet method is solidified and is referred to 20min in the DMF solution of 40 ℃ of base material placements, then washing is dried.
Described hot water treatment refers to uses hot water injection's base material, to remove the PVA solution on base material.
After PVA preliminary treatment, at islands-in-sea type fibre surface uniform parcel one deck PVA film, thereby can not exclusively directly combination between PU and nonwoven substrates, the middle space that forms, makes the feel of microfiber leather more soft, and drapability is better, also can improve the gas permeability of fabric.
Flooding and solidifying in PU operation, PVA film has protective effect to islands-in-sea type fibre, stops DMF solution to enter islands-in-sea type fibre.
After PVA being washed off with hot water, film inwall leaves a lot of micropores, forms microporous effect.Meanwhile, due to the filling effect of PVA, islands-in-sea type fibre is opened between afterwards fine and PU larger space, has strengthened the capillary effect of superfine fibre, has greatly improved the water vapour permeability of the non-woven synthetic leather of island superfine fiber.
In sum, above embodiment is only in order to illustrate the present invention and unrestricted technical scheme described in the invention; Therefore, although this description has been described in detail the present invention with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can modify or be equal to replacement the present invention; And all do not depart from technical scheme and the improvement thereof of the spirit and scope of the present invention, it all should be encompassed in claim scope of the present invention.
Claims (5)
1. through a synthesis technique for the non-woven synthetic leather of the pretreated superfine fibre of PVA, it is characterized in that, technological process is as follows:
Solidify → hot water treatment of nonwoven substrates → PVA preliminary treatment → dipping PU solution → PU wet method → be dried → evaporate alkali decrement treatment → drying → washing → dry.
2. the synthesis technique through the non-woven synthetic leather of the pretreated superfine fibre of PVA according to claim 1, it is characterized in that, described nonwoven substrates is PA and the COPET island superfine fiber needle fabric of 30:70, and its surface density is 600g/m2, and thickness is 3.5mm.
3. the synthesis technique through the non-woven synthetic leather of the pretreated superfine fibre of PVA according to claim 1, it is characterized in that, described PVA pretreating process is: enter the first groove, in the first groove, the mass fraction of PVA solution is 5%, temperature is controlled at 60 ℃～70 ℃, impregnation time 3min; Enter the second groove, the mass fraction of the second groove PVA solution is 5% again, and temperature is controlled at 85 ℃～95 ℃, impregnation time 5min; Padding machine speed 7m/min, pressure 9.8N, 118 ℃ of bake out temperatures.
4. the synthesis technique through the non-woven synthetic leather of the pretreated superfine fibre of PVA according to claim 1, is characterized in that, described PU wet method is solidified and referred to 20min in the DMF solution of 40 ℃ of base material placements, then washing is dried.
5. the synthesis technique through the non-woven synthetic leather of the pretreated superfine fibre of PVA according to claim 1, is characterized in that, described hot water treatment refers to uses hot water injection's base material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310447267.0A CN103526561A (en) | 2013-09-27 | 2013-09-27 | Synthesis technology of superfine fiber nonwoven synthetic leather subjected to PVA (polyvinyl acetate) pretreatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310447267.0A CN103526561A (en) | 2013-09-27 | 2013-09-27 | Synthesis technology of superfine fiber nonwoven synthetic leather subjected to PVA (polyvinyl acetate) pretreatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103526561A true CN103526561A (en) | 2014-01-22 |
Family
ID=49928883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310447267.0A Pending CN103526561A (en) | 2013-09-27 | 2013-09-27 | Synthesis technology of superfine fiber nonwoven synthetic leather subjected to PVA (polyvinyl acetate) pretreatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103526561A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103774457A (en) * | 2014-01-24 | 2014-05-07 | 廊坊中纺新元无纺材料有限公司 | Preparation method of continuous-fiber microfiber leather |
| CN105442332A (en) * | 2015-12-22 | 2016-03-30 | 上海华峰超纤材料股份有限公司 | Skin-imitated superfine-fiber synthetic-leather base cloth and preparation method thereof |
| CN107237157A (en) * | 2017-04-14 | 2017-10-10 | 安徽宝博合成革有限公司 | A kind of preparation method of aqueous polyurethane/superfine fibre composite |
| CN107476077A (en) * | 2017-08-10 | 2017-12-15 | 丁彬彬 | A kind of preparation technology of ultra-fine velvet surface synthetic leather |
| CN108914623A (en) * | 2018-09-03 | 2018-11-30 | 孙桂芝 | A method of superfine fiber polyurethane leather is prepared with modified nano-titanium dioxide-surface grafting carbon nanotube |
| CN112208177A (en) * | 2020-10-10 | 2021-01-12 | 江苏厚生新能源科技有限公司 | High-breathability PE composite fabric and preparation method thereof |
| CN112962327A (en) * | 2021-02-03 | 2021-06-15 | 合肥科天水性科技有限责任公司 | Thermal-insulation cold-proof water-based clothing leather and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1590635A (en) * | 2004-06-17 | 2005-03-09 | 东莞市新纶纤维材料科技有限公司 | Processing method of ultrafine fiber needing non-woven fabric simulated genuine leather |
| CN103057219A (en) * | 2012-12-31 | 2013-04-24 | 浙江梅盛实业股份有限公司 | High-strength terylene microfiber needling fabric |
-
2013
- 2013-09-27 CN CN201310447267.0A patent/CN103526561A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1590635A (en) * | 2004-06-17 | 2005-03-09 | 东莞市新纶纤维材料科技有限公司 | Processing method of ultrafine fiber needing non-woven fabric simulated genuine leather |
| CN103057219A (en) * | 2012-12-31 | 2013-04-24 | 浙江梅盛实业股份有限公司 | High-strength terylene microfiber needling fabric |
Non-Patent Citations (1)
| Title |
|---|
| 杨友红等: "PVA在超细纤维非织造合成革工艺中作用机理研究", 《产业用纺织品》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103774457A (en) * | 2014-01-24 | 2014-05-07 | 廊坊中纺新元无纺材料有限公司 | Preparation method of continuous-fiber microfiber leather |
| CN105442332A (en) * | 2015-12-22 | 2016-03-30 | 上海华峰超纤材料股份有限公司 | Skin-imitated superfine-fiber synthetic-leather base cloth and preparation method thereof |
| CN107237157A (en) * | 2017-04-14 | 2017-10-10 | 安徽宝博合成革有限公司 | A kind of preparation method of aqueous polyurethane/superfine fibre composite |
| CN107476077A (en) * | 2017-08-10 | 2017-12-15 | 丁彬彬 | A kind of preparation technology of ultra-fine velvet surface synthetic leather |
| CN108914623A (en) * | 2018-09-03 | 2018-11-30 | 孙桂芝 | A method of superfine fiber polyurethane leather is prepared with modified nano-titanium dioxide-surface grafting carbon nanotube |
| CN112208177A (en) * | 2020-10-10 | 2021-01-12 | 江苏厚生新能源科技有限公司 | High-breathability PE composite fabric and preparation method thereof |
| CN112208177B (en) * | 2020-10-10 | 2022-07-22 | 江苏厚生新能源科技有限公司 | High-breathability PE composite fabric and preparation method thereof |
| CN112962327A (en) * | 2021-02-03 | 2021-06-15 | 合肥科天水性科技有限责任公司 | Thermal-insulation cold-proof water-based clothing leather and preparation method thereof |
| CN112962327B (en) * | 2021-02-03 | 2022-04-22 | 合肥科天水性科技有限责任公司 | Thermal-insulation cold-proof water-based clothing leather and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103526561A (en) | Synthesis technology of superfine fiber nonwoven synthetic leather subjected to PVA (polyvinyl acetate) pretreatment | |
| CN102619095B (en) | Manufacturing method of environmentally-friendly flame-retardant bunched sea-island chamois leather | |
| CN104594025B (en) | Method for preparing zinc-oxide-modified ultraviolet-resistant silk | |
| CN107283996B (en) | High fastness elastic force cowboy is bonded the preparation method of fabric | |
| CN105350286B (en) | A kind of processing method of natural non-ironing pure-cotton fabric | |
| CN101288507A (en) | Manufacturing technique of crease-shedding uniforms lining | |
| CN102644202B (en) | Fibrillation processing method of tencel fabric and preparation method of brushed tencel fabric | |
| CN103774457A (en) | Preparation method of continuous-fiber microfiber leather | |
| CN105200656A (en) | Non-woven mask base cloth and manufacturing method thereof | |
| CN106757780A (en) | A kind of production technology of chrysanthemum valve type superfine fibre spunlace non-woven cloth | |
| CN106521956A (en) | Orange petal type superfine fiber simulation leather base cloth preparation method | |
| CN103085402A (en) | High-stimulation fur fabric and its making method | |
| CN105442233A (en) | Dyeing and finishing method for soft and breathable down-proof fabric | |
| WO2017219596A1 (en) | Wet transfer printing method for milk protein fiber/cotton fiber interwoven fabric | |
| JP2013522065A5 (en) | ||
| CN104452313A (en) | Pretreatment processing method for controlling shrinkage rate of regenerated cellulose fiber and blended fabric thereof | |
| CN108442036A (en) | A kind of manufacture craft of lace facial mask cloth | |
| CN108642711A (en) | A kind of preparation method and non-woven fabrics of high loft non-woven cloth | |
| CN110306353B (en) | Multi-dimensional superfine fiber synthetic leather and preparation method thereof | |
| CN104664639A (en) | Pure hemp knitted underwear material without scratchiness and processing method thereof | |
| CN104988695A (en) | Salient point non-woven fabric production device | |
| CN106758154B (en) | Synthetic fabrics and its size fast and stable method | |
| CN107604737A (en) | Ventilative felt of a kind of moisture absorption and preparation method thereof | |
| CN105220509B (en) | The processing method that a kind of color knits pure cotton cooling fabric | |
| CN104420098A (en) | Polyester fluffy softening finishing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140122 |