CN1970879A - Method for manufacturing coloured ultrathin fiber nylon polyurethane suede leather - Google Patents
Method for manufacturing coloured ultrathin fiber nylon polyurethane suede leather Download PDFInfo
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- CN1970879A CN1970879A CN 200510110717 CN200510110717A CN1970879A CN 1970879 A CN1970879 A CN 1970879A CN 200510110717 CN200510110717 CN 200510110717 CN 200510110717 A CN200510110717 A CN 200510110717A CN 1970879 A CN1970879 A CN 1970879A
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- base cloth
- nonwoven fabric
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- polyurethane
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Abstract
The invention relates to a manufacturing method for color suede leather with superfine polyester fiber nylon and polyurethane. As color master batch is added to make color for compound fiber directly in spinning process and wet polyurethane with similar color with fiber color is immersed in the dipping process. Base fabric with even color is obtained. The colority of color suede leather with superfine polyester fiber nylon and polyurethane is similar to the dyeing one but the dyeing procedure, which is complicated, seriously contaminative to circumstance and high cost, is simplified. Meanwhile the coloring fastness is increased and the producing cost is decreased greatly.
Description
Technical field
The present invention relates to a kind of manufacture method of coloured ultrathin fiber nylon polyurethane suede leather, relate in particular to the colouring method in this manufacture process.
Background technology
In recent years, because many laws and regulations regulations about environmental protection put into effect, and the source of the costing an arm and a leg of corium, corium was limited, and people begin to seek the substitute of corium, and therefore the real leather intimating synthetic leather that adopts superfine fibre to make is also more and more welcome.
The ultrathin fiber nylon polyurethane synthetic leather is to be the fiber at 4～7 dawn with fineness, the leather that operations such as process acupuncture, dipping, decrement are made, its three-dimensional structure network is similar to corium, and this makes the ultrathin fiber nylon polyurethane synthetic leather all surpass natural leather at aspects such as tearing toughness, shape-retaining ability, the uniformity, chemical resistance and waterproof, mildew-resistant sex change.The ultrathin fiber nylon polyurethane synthetic leather is in conjunction with process technologies such as the polyurethane slurry dipping with loose structure, mill skins, brought into play the big and bibulous characteristics of superfine fibre specific area, make the ultrathin fiber nylon polyurethane synthetic leather had the ultra-fine collagenous fibres of pencil corium intrinsic moisture-absorption characteristics.No matter thereby microstructure and material internally, or appearance tactile impression and physical property, and the aspects such as feel used of people can both compare favourably with the natural corium of top grade.The ultrathin fiber nylon polyurethane synthetic leather of catching up with and surpassing and substituting natural corium will be the optimal selection as suede.
The existing method of making the coloured ultrathin fiber nylon polyurethane synthetic leather generally is to adopt islands-in-sea type fibre is obtained nonwoven fabric through acupuncture, then nonwoven fabric pressing, dipping, decrement are extracted out and obtain ultra-fine nylon 6/ polyurethane of pencil (PA/PU) base cloth, after split, mill skin operation, dye again, the back arrangement obtains the coloured ultrathin fiber suede.Because the suede base cloth is made up of ultra-fine nylon fiber and two kinds of components of polyurethane, and ultra-fine nylon fiber number can reach below 0.01 dawn, specific area is much higher than general fibre, its colour rendering or engrain are poor, level-dyeing property is poor, dyefastness is poor, the dyeing temperature interdependence poor (referring to Song Xinyuan. tencel and dyeing progress [J] thereof.In the dyeing course, mainly select neutrality or acid dyeing for use, used dyestuff and dyeing all have specific (special) requirements, and super fine nylon and polyurethane two-phase Dry Sack are easily deep mixed, cause surface " bloom " (referring to the beautiful Gu Feng of Li Rong Qiu Ya. the research [J] of ultra-fine nylon PU synthetic leather neutral dyeing performance. printing and dyeing, 2004,30 (24): 6～8); Dye industry, 2001,38 (3): 30～35), and polyurethane all has compatibility to most of dyestuffs, but seldom arrive the high dyeing fastness (referring to Song Xinyuan. the structure of spandex, performance and dyeing and finishing [J]. printing and dyeing, 2002,28 (11): 30～35).
In addition, need to consume big water gaging, dyestuff, the energy in dyeing course, and sewage disposal also is a very stubborn problem after the dyeing, environmental pollution is more serious.Relatively poor through the feel after the high-temp dyeing, at high temperature nylon shrinks easily, even also be difficult to the soft degree of recovering original through aftertreatment technology, and the post-finishing agent use amount also increases significantly, thereby has increased the cost of product.Dyed prepared finished product COLOR FASTNESS is relatively poor, particularly wet friction COLOR FASTNESS, the difficult control of aberration between criticizing and criticizing.The arrangement of mill skin is bigger to the finished color stability influence.
Summary of the invention
The technical issues that need to address of the present invention have provided a kind of manufacture method of coloured ultrathin fiber nylon polyurethane suede leather, are intended to solve above-mentioned defective.
In order to solve the problems of the technologies described above, the present invention realizes by following steps:
Is 33～47: 32～53 with polyethylene (PE), nylon (PA) and colored master batch according to weight ratio: 14～21 blending and stirring;
Under the condition of 220～300 ℃ of temperature, by the single screw extrusion machine fusion plastification;
Spinning obtains colored fiber;
With the fiber of colour be cut into long 40～60mm, fiber number is the colored islands-in-sea type fibre of the polyethylene/nylon (PE/PA) at 4～7 dawn;
Through combing, lapping and acupuncture, make 550～800g/m
2About nonwoven fabric;
Nonwoven fabric is plated, and obtaining thickness is the smooth nonwoven fabric in 2.0～3.5mm left and right sides;
The wet polyurethane (PU) that impregnation is similar to fiber color displaces the dimethyl formamide in the wet polyurethane by dimethyl formamide (DMF)/water;
Treat that DMF concentration in the tank less than after 1%, will flood good nonwoven fabric again and be placed in the toluene extractor displacer, in 80～100 ℃ toluene, after pushing base cloth repeatedly and extracting PE out, obtain colored super fine PA/PU base cloth;
After the base cloth oven dry, obtain the superfine fibre suede through operations such as split, mill skin and back arrangements.
Utilize the colourity of the coloured ultrathin fiber suede that the present invention obtains and similar through dyeing, but simplified complexity, brought dyeing process severe contamination, that cost is high to environment, improve advantages such as COLOR FASTNESS and colour stability simultaneously, and greatly reducing production cost.
Compared with prior art, the invention has the beneficial effects as follows: simplified technological process, resulting glove leather color homogeneous does not almost have aberration between criticizing and criticizing; And only need a spot of after-treating auxiliary just can reach the good hand feeling effect, can significantly reduce cost.
The specific embodiment
Below in conjunction with the specific embodiment the present invention is described in further detail:
Embodiment 1
With PA: PE: Masterbatch is 33: 53: 14, makes the islands-in-sea type fibre at 5.5 dawn under 260 ℃ of conditions, through making 650g/m after combing, the lapping
2About nonwoven fabric, plating then be the nonwoven fabric of 2.6mm, behind the impregnation PU, removes PE in 80 ℃ of toluene grooves, obtains the PA/PU base cloth of colour; With the base cloth split is the thick PA/PU base cloth of 0.8mm, grind then skin, the back arrangement can obtain the super fine leather of matte.
Embodiment 2
With PA: PE: Masterbatch is 40: 39: 21, makes the islands-in-sea type fibre at 5.5 dawn under 270 ℃ of conditions, through making 650g/m after combing, the lapping
2About nonwoven fabric, plating then be the nonwoven fabric of 2.6mm, behind the impregnation PU, removes PE in 80 ℃ of toluene grooves, obtains the PA/PU base cloth of colour; With the base cloth split is the thick PA/PU base cloth of 0.8mm, grind then skin, the back arrangement can obtain the super fine leather of matte.
Embodiment 3
With PA: PE: Masterbatch is 45: 35: 20, makes the islands-in-sea type fibre at 5.5 dawn under 270 ℃ of conditions, through making 650g/m after combing, the lapping
2About nonwoven fabric, plating then be the nonwoven fabric of 2.6mm, behind the impregnation PU, removes PE in 80 ℃ of toluene grooves, obtains the PA/PU base cloth of colour; With the base cloth split is the thick PA/PU base cloth of 0.8mm, grind then skin, the back arrangement can obtain the super fine leather of matte.
The present invention adopts and directly add Masterbatch in spinning process, and is painted to composite fibre.And it is painted to polyurethane to add colouring agent in dipping process, thereby obtains the base cloth of color homogeneous.
Utilize the colourity of the coloured ultrathin fiber suede that the present invention obtains and similar through dyeing, but simplified complicated, bring dyeing process severe contamination, that cost is high to environment, increasing advantage such as COLOR FASTNESS simultaneously and greatly reducing production cost.
Claims (4)
1. the manufacture method of a coloured ultrathin fiber nylon polyurethane suede leather, realize by following steps:
Is 33～47: 32～53 with polyethylene (PE), nylon (PA) and colored master batch according to weight ratio: 14～21 blending and stirring;
Under the condition of 220～300 ℃ of temperature, by the single screw extrusion machine fusion plastification;
Spinning obtains colored fiber;
With the fiber of colour be cut into long 40～60mm, fiber number is the colored islands-in-sea type fibre of the polyethylene/nylon (PE/PA) at 4～7 dawn;
Through combing, lapping and acupuncture, make 550～800g/m
2About nonwoven fabric;
Nonwoven fabric is plated, and obtaining thickness is the smooth nonwoven fabric in 2.0～3.5mm left and right sides;
The wet polyurethane (PU) that impregnation is similar to fiber color displaces the dimethyl formamide in the wet polyurethane by dimethyl formamide (DMF)/water;
Treat that DMF concentration in the tank less than after 1%, will flood good nonwoven fabric again and be placed in the toluene extractor displacer, in 80～100 ℃ toluene, after pushing base cloth repeatedly and extracting PE out, obtain colored super fine PA/PU base cloth;
After the base cloth oven dry, obtain the superfine fibre suede through operations such as split, mill skin and back arrangements.
2. the manufacture method of coloured ultrathin fiber nylon polyurethane suede leather according to claim 1, wherein: with PA: PE: Masterbatch is 33: 53: 14, makes the islands-in-sea type fibre at 5.5 dawn under 260 ℃ of conditions, through making 650g/m after combing, the lapping
2About nonwoven fabric, plating then be the nonwoven fabric of 2.6mm, behind the impregnation PU, removes PE in 80 ℃ of toluene grooves, obtains the PA/PU base cloth of colour; With the base cloth split is the thick PA/PU base cloth of 0.8mm, grind then skin, the back arrangement can obtain the super fine leather of matte.
3. the manufacture method of coloured ultrathin fiber nylon polyurethane suede leather according to claim 1, wherein: with PA: PE: Masterbatch is 40: 39: 21, makes the islands-in-sea type fibre at 5.5 dawn under 270 ℃ of conditions, through making 650g/m after combing, the lapping
2About nonwoven fabric, plating then be the nonwoven fabric of 2.6mm, behind the impregnation PU, removes PE in 80 ℃ of toluene grooves, obtains the PA/PU base cloth of colour; With the base cloth split is the thick PA/PU base cloth of 0.8mm, grind then skin, the back arrangement can obtain the super fine leather of matte.
4. the manufacture method of coloured ultrathin fiber nylon polyurethane suede leather according to claim 1, wherein: with PA: PE: Masterbatch is 45: 35: 20, makes the islands-in-sea type fibre at 5.5 dawn under 270 ℃ of conditions, through making 650g/m after combing, the lapping
2About nonwoven fabric, plating then be the nonwoven fabric of 2.6mm, behind the impregnation PU, removes PE in 80 ℃ of toluene grooves, obtains the PA/PU base cloth of colour; With the base cloth split is the thick PA/PU base cloth of 0.8mm, grind then skin, the back arrangement can obtain the super fine leather of matte.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101107172A CN100469969C (en) | 2005-11-24 | 2005-11-24 | Method for manufacturing coloured ultrathin fiber nylon polyurethane suede leather |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101107172A CN100469969C (en) | 2005-11-24 | 2005-11-24 | Method for manufacturing coloured ultrathin fiber nylon polyurethane suede leather |
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| Publication Number | Publication Date |
|---|---|
| CN1970879A true CN1970879A (en) | 2007-05-30 |
| CN100469969C CN100469969C (en) | 2009-03-18 |
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| CNB2005101107172A Active CN100469969C (en) | 2005-11-24 | 2005-11-24 | Method for manufacturing coloured ultrathin fiber nylon polyurethane suede leather |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101591860B (en) * | 2008-05-30 | 2011-03-23 | 上海华峰超纤材料股份有限公司 | Scratch resistant processing method of non-figured island ultrafine fiber napped leather |
| CN102392364A (en) * | 2011-07-22 | 2012-03-28 | 烟台万华超纤股份有限公司 | Superfine fiber synthetic leather for basketball and preparation method thereof |
| CN102650081A (en) * | 2011-02-25 | 2012-08-29 | 上海华峰超纤材料股份有限公司 | Color fixed island composite short fiber and preparation method thereof |
| CN102102301B (en) * | 2009-12-18 | 2012-09-19 | 上海华峰超纤材料股份有限公司 | Superfine fiber leather and preparation method thereof |
| CN102776602A (en) * | 2012-07-27 | 2012-11-14 | 烟台万华超纤股份有限公司 | Figured island superfine fiber, figured island superfine fiber synthetic leather base cloth, suede leather for clothes, smooth synthetic leather for clothes and production method of fiber, base cloth, suede leather and smooth synthetic leather |
| CN103015185A (en) * | 2012-11-29 | 2013-04-03 | 上海华峰超纤材料股份有限公司 | Wear-resistant superfine fiber napped leather and preparation method thereof |
| CN103821010A (en) * | 2014-02-20 | 2014-05-28 | 安安(中国)有限公司 | Staining method of immersion type pigment for staining of superfine fiber synthetic leather base cloth |
-
2005
- 2005-11-24 CN CNB2005101107172A patent/CN100469969C/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101591860B (en) * | 2008-05-30 | 2011-03-23 | 上海华峰超纤材料股份有限公司 | Scratch resistant processing method of non-figured island ultrafine fiber napped leather |
| CN102102301B (en) * | 2009-12-18 | 2012-09-19 | 上海华峰超纤材料股份有限公司 | Superfine fiber leather and preparation method thereof |
| CN102650081A (en) * | 2011-02-25 | 2012-08-29 | 上海华峰超纤材料股份有限公司 | Color fixed island composite short fiber and preparation method thereof |
| CN102650081B (en) * | 2011-02-25 | 2014-01-29 | 上海华峰超纤材料股份有限公司 | Color fixed island composite short fiber and preparation method thereof |
| CN102392364A (en) * | 2011-07-22 | 2012-03-28 | 烟台万华超纤股份有限公司 | Superfine fiber synthetic leather for basketball and preparation method thereof |
| CN102776602A (en) * | 2012-07-27 | 2012-11-14 | 烟台万华超纤股份有限公司 | Figured island superfine fiber, figured island superfine fiber synthetic leather base cloth, suede leather for clothes, smooth synthetic leather for clothes and production method of fiber, base cloth, suede leather and smooth synthetic leather |
| CN103015185A (en) * | 2012-11-29 | 2013-04-03 | 上海华峰超纤材料股份有限公司 | Wear-resistant superfine fiber napped leather and preparation method thereof |
| CN103821010A (en) * | 2014-02-20 | 2014-05-28 | 安安(中国)有限公司 | Staining method of immersion type pigment for staining of superfine fiber synthetic leather base cloth |
| CN103821010B (en) * | 2014-02-20 | 2016-08-24 | 安安(中国)有限公司 | A kind of impregnated pigment coloring method for superfine fiber synthetic leather base cloth coloring |
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| Publication number | Publication date |
|---|---|
| CN100469969C (en) | 2009-03-18 |
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Address after: 201508, No. 888 Ting Wei Road, Shanghai, Jinshan District Patentee after: Shanghai Huafeng Super Fiber Technology Co.,Ltd. Address before: 201508, No. 888 Ting Wei Road, Shanghai, Jinshan District Patentee before: HUAFON MICROFIBRE (SHANGHAI) Co.,Ltd. |