CN102444026A - Method for producing high-performance suede superfine fiber synthetic leather for clothes - Google Patents
Method for producing high-performance suede superfine fiber synthetic leather for clothes Download PDFInfo
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Abstract
The invention discloses a method for producing high-performance suede superfine fiber synthetic leather for clothes. Superfine fiber synthetic leather base cloth is used as a base material; by adopting the technologies of combined hydrolysis of diethanol amine and multiple enzyme preparations, surface adsorption modification of hydrolyzed gelatin and cross-linking immobilization of glutaraldehyde, the water vapor permeability of the suede superfine fiber synthetic leather is improved; the superfine fibers are fully dispersed and lubricated by adopting a combined greasing technology of multiple greasing agents, so that the softness and the handfeel property of the suede superfine fiber synthetic leather are improved; by adopting a one-bath dyeing technology of a metal complex dye and a disperse dye in a ratio of 1:1 and a color fixing technology of a macromolecular color fixing agent, the luster and the dyeing fastness of the suede superfine fiber synthetic leather are improved; and by adopting a technology of combining mechanical raising and cutting, the 'writing effect' of the suede of the suede superfine fiber synthetic leather is improved, and the suede superfine fiber synthetic leather is endowed with good chamois appearance. Under the condition that the conventional physical and mechanical properties are met, the dry scraping fastness of the surface color of the produced suede superfine fiber synthetic leather is more than or equal to level 4, the wet scraping fastness of the surface color is more than or equal to level 3, and the water vapor permeability is more than or equal to 1.5mg/cm<2>.h.
Description
Technical field
The present invention relates to the production technology of superfine fiber chemical leather, and particularly a kind of clothes are with the production method of high-performance matte superfine fiber chemical leather.
Background technology
The natural leather resource-constrained, production process can produce bigger pollution, have premium properties the emulation synthetic leather be developed to pursuit for the mankind.Be reinforcing material wherein with not weaving fabric of superfine fiber with tridimensional network; Through flooding the superfine fiber chemical leather that polyurethane obtains; No matter aspects such as microstructure, or appearance tactile impression internally and physical characteristic and people's snugness of fit are all near natural leather.
The development of China's superfine fiber chemical leather industry has only the course of more than ten years, has obtained fast development in recent years, and the China's Mainland has become the largest production base of global superfine fiber chemical leather.According to demonstration, 2005, the domestic production line that has started had 25 according to Chinese synthetic leather netting index, and actual annual capacity reaches 7650 myriametres.To the end of the year 2005, China also formally becomes maximum in the world superfine fiber chemical leather producing country.In addition, the production line that enterprise plan starts also has 8, and in 2006, because some key technology of domestic superfine fiber chemical leather does not thoroughly break through as yet, each producer's product homoplasy was obvious, and the high-end applications field still mainly relies on import.Domestic production capacity increases too fastly in a short time in addition, has caused the situation of the production capacity surplus of superfine fiber chemical leather, and domestic a lot of superfine fiber chemical leather projects fail to start as scheduled.By 2007, the imbalance between supply and demand of superfine fiber chemical leather industry came to the surface, and the product profit rate further reduces, and most of producer is that the compete for market share price war carried out is reduced to product price near the cost price.To the end of the year 2008, domestic only remaining 16 tame superfine fiber chemical leather manufacturing enterprises, 26 of total production lines.But after this along with the technological progressively maturation of superfine fiber chemical leather; The development of superfine fiber chemical leather is rallying; Get into fast developing lane; According to the investigation statistics of artificial leather synthetic leather special commission of Chinese plastic processing TIA to member unit: domestic superfine fiber chemical leather output increased by 25% on a year-on-year basis in 2009, reached 3,500 ten thousand square metres, and wherein superfine fiber chemical leather sales volume in 2009 in market, Wenzhou reaches 5,000,000 square metres.
According to Chinese plastic processing TIA statistics, from the real consumption amount, the consumption figure of China's superfine fiber chemical leather improves year by year.About 0.706 hundred million square metre of the consumption figure of China's superfine fiber chemical leather in 2009 increases by 61.6% on a year-on-year basis, about 1.07 hundred million square metres of domestic superfine fibre demand, about 3,500 ten thousand square metres of market has openings.The all not newly-increased production capacity of China superfine fiber chemical leather manufacturing enterprise in 2010; Estimate that domestic superfine fiber chemical leather output can significantly not rise; Foundation annual about 5,000,000 square metres annual growth rate is in history calculated, and output in 2010 is about about 4,000 ten thousand square metres, and nearest 2 years owing to relevant leading enterprise is constantly expanding production; Estimate that newly-increased production capacity is about 2,000 ten thousand square metres; But with respect to the consumption demand that progressively increases, the superfine fiber chemical leather industry was in the situation that supply falls short of demand on the whole in 2011～2012, estimated that superfine fiber chemical leather market demand expectation in 2012 reaches 200,000,000 square metres.
At present; The existing high-grade sport footwear more than 90% in the whole world adopts the superfine fiber chemical leather manufacturing; The three major ball games of basketball class is with the most of superfine fiber chemical leather material that adopts of leather; High-grade automotive seat also begins to adopt superfine fiber chemical leather to substitute natural leather, and its range of application enlarges day by day, and development prospect is boundless.But in the clothing leather field, domestic superfine fiber chemical leather is at the 1-2% of clothing leather field occupancy, because home clothing is limit with matte superfine fiber chemical leather technology, about 95% needs to rely on import, and the market development potential is very huge.Particularly high performance clothes are used the matte superfine fiber chemical leather, do not see yet at present and also do not see relevant report in the commercially available prod.
So-called high-performance matte superfine fiber chemical leather; Must possess following main performance: one of which; High-performance matte superfine fiber chemical leather should have air permeability and good, vapor pervious performance, promptly has good sanitation performance, can satisfy the sanitation performance requirement of ready-made clothes; Its two, high-performance matte superfine fiber chemical leather should have good pliability and feel (organoleptic indicator), can satisfy the comfortableness requirement of ready-made clothes; Its three, high-performance matte superfine fiber chemical leather should have good surface appearance color and luster and dyefastness (mainly referring to do wet difference fastness), the color and luster of its matte can satisfy the color and luster requirement of ready-made clothes; Its four, high-performance matte superfine fiber chemical leather should have good chamois leather outward appearance, pile is fine and closely woven neat on the matte, has good " writing effect " (estimate the industry slang of matte series products, characterize effect of napping).
At present, production high-performance matte superfine fiber chemical leather, technological difficulties mainly contain the following aspects: the crust leather vapor pervious performance of (1) natural leather is 800mg/10cm
2About * 24h, and the vapor pervious performance of superfine fiber fabric is merely 400mg/10cm
2About * 24h, this sanitation performance that has just caused the matte superfine fiber chemical leather is than natural leather difference.This mainly is that natural leather is much faster than superfine fiber chemical leather to the transmission speed of steam owing to the hydrophilic radical on the collagenous fibres in the natural leather is more than the hydrophilic radical of superfine fibre in the superfine fiber fabric, so the vapor pervious performance is good, sanitation performance is better.(2) pliability of matte superfine fiber chemical leather and feel differ greatly than natural leather; This mainly is because superfine fiber chemical leather is base with the not weaving fabric of superfine fiber; The dipping polyurethane slurry forms the composite with open-celled structure, and the decentralization of superfine fibre is far away from natural leather; (3) but the dyeability of matte superfine fiber chemical leather is poor, dyefastness is not high.This mainly is because superfine fiber chemical leather mainly comprises two kinds of compositions of polyurethane that not weaving fabric of superfine fiber and dipping are filled; These two kinds of constituent structure and performance difference are very big; Single dyestuff and single colouring method are difficult to satisfy simultaneously the dyeing requirement of two kinds of compositions, and the active group on the superfine fiber chemical leather fiber seldom, mainly rely on the deposition of dyestuff self to make the fiber colouring during dyeing; Therefore; Most of dyestuffs are difficult to dye, and its washing fastness is very poor, is difficult to reach the dyeing requirement; (4) fibre density of matte superfine fiber chemical leather is more much smaller than the fibre density of natural leather, causes the pile of matte superfine fiber chemical leather at random, and density is not enough, and it is not obvious that matte " is write effect ".
Summary of the invention
The object of the present invention is to provide a kind of vapor pervious performance that can improve the matte superfine fiber chemical leather;, pliability and the feel characteristic of matte superfine fiber chemical leather, the color and luster and the dyefastness of matte superfine fiber chemical leather, the clothes of matte superfine fiber chemical leather matte " writing effect " are with the production method of high-performance matte superfine fiber chemical leather.
For achieving the above object, the technical scheme that the present invention adopts is:
The first step: hydrolysis dipping
At first with the superfine fiber chemical leather base cloth through in the hydrolytic tank that is contained with enzyme hydrolyzate the superfine fiber chemical leather base cloth being hydrolyzed 35～40 ℃ of hydrolysis temperatures, 10～30 minutes time;
Described enzyme hydrolyzate is a benchmark with the weight of superfine fiber chemical leather base cloth, comprises 300%～1000% water, 0.1～0.3% diethanol amine, 0.3～1% pancreatin and 0.3～1% 1398 neutral proteinase;
Place the dipping tank that is contained with the gelatin hydrolysate maceration extract to flood the superfine fiber chemical leather base cloth after the hydrolysis then, 35～40 ℃ of dipping temperatures, 10～30 minutes time;
Described gelatin hydrolysate maceration extract is a benchmark with the weight of superfine fiber chemical leather base cloth, comprises 300%～1000% water and 5%～10% gelatin hydrolysate;
Superfine fiber chemical leather base cloth after will flooding at last places holddown groove to adopt glutaraldehyde solution at 35～40 ℃, carries out 5～20 minutes fixedly gelatin hydrolysates;
Described glutaraldehyde solution is a benchmark with the weight of superfine fiber chemical leather base cloth, comprises 300%～1000% water and 0.3%～1% glutaraldehyde;
Second step: stuffing is filled
At first the superfine fiber chemical leather base cloth behind the hydrolysis dipping is carried out stuffing to the superfine fiber chemical leather base cloth, 45～55 ℃ of temperature, 10～30 minutes action time through adopting the fat liquoring complex agent emulsion in the stuffing groove;
The weight of the superfine fiber chemical leather base cloth after described fat liquoring complex agent emulsion is flooded with hydrolysis is benchmark; Comprise 300%～1000% water; 5%～10% sulfated castor oil fatting agent, 5%～10% sulphation rapeseed oil fatting agent and 5%～10% sulfuric acid fish oil;
Get into filling slot then, the filling liquid that adopts polyacrylic resin retanning agent and amino resins retanning agent to form is flooded filling, 35～40 ℃ of temperature, 5～20 minutes action time;
The weight of the superfine fiber chemical leather base cloth after described filling liquid is flooded with hydrolysis is benchmark, comprises 300%～1000% water, 5%～10% polyacrylic resin retanning agent and 5%～10% amino resins retanning agent;
The 3rd step: dye fixing
Adopt dye jigger; Superfine fiber chemical leather base cloth after stuffing filled utilizes 1: 1 type premetallized dye and DISPERSE DYES to carry out co-bathing dyeing; 90～95 ℃ of temperature; 60～120 minutes time, adopt natural tannin and aluminium triformate solution that the superfine fiber chemical leather base cloth after dyeing is carried out fixation, washing and drying then again;
The weight of the superfine fiber chemical leather base cloth after described co-bathing dyeing is filled with stuffing is benchmark, comprises 300%～1000% water, 1%～3% 1: 1 type premetallized dye and 1%～3% DISPERSE DYES;
The mass fraction of described natural tanning solution is 2%～4%, and the fixation time is 60～120 minutes;
The mass fraction of described aluminium triformate solution is 2%～4%, and the fixation time is 60～120 minutes;
The 4th step: napping and shorn velvet
To pass through dye fixing and dried superfine fiber chemical leather base cloth and adopt the teazle gig napping, the sufficient pull-up of superfine fiber chemical leather base cloth surface fiber is come, and adopt single-cutter shearing machine to carry out straight snips suede then, pile height is less than 1mm.
The present invention as base material, adopts diethanol amine and plurality of enzymes preparation associating hydrolysis, the modification of gelatin hydrolysate surface adsorption, the fixing technology of glutaraldehyde cross-linking with the superfine fiber chemical leather base cloth, has improved the vapor pervious performance of matte superfine fiber chemical leather; Adopt multiple fatting agent associating stuffing technology, disperse fully and lubricated superfine fibre, improved the pliability and the feel characteristic of matte superfine fiber chemical leather; Adopt the technology of 1: 1 type premetallized dye and DISPERSE DYES co-bathing dyeing, macromolecular solid toner fixation, improved the color and luster and the dyefastness of matte superfine fiber chemical leather; The technology that adopts mechanical napping and shorn velvet to combine, " the writing effect " of having improved matte superfine fiber chemical leather matte given its good chamois leather outward appearance.Through the enforcement of above technology, can produce high-performance matte superfine fiber chemical leather, satisfying under the condition of conventional physical and mechanical properties xerotripsis fastness>=4 of its surface color grade, wet rubbing fastness>=3 of surface color grade, permeable gas property>=1.5mg/cm
2H.
The specific embodiment
Embodiment 1:
The first step: hydrolysis dipping
At first the superfine fiber chemical leather base cloth is hydrolyzed 35 ℃ of hydrolysis temperatures, 30 minutes time to the superfine fiber chemical leather base cloth through the hydrolytic tank that is contained with enzyme hydrolyzate;
Described enzyme hydrolyzate is a benchmark with the weight of superfine fiber chemical leather base cloth, comprises 500% water, 0.1% diethanol amine, 0.5% pancreatin and 0.3% 1398 neutral proteinase;
Place the dipping tank that is contained with the gelatin hydrolysate maceration extract to flood the superfine fiber chemical leather base cloth after the hydrolysis then, 40 ℃ of dipping temperatures, 10 minutes time;
Described gelatin hydrolysate maceration extract is a benchmark with the weight of superfine fiber chemical leather base cloth, comprises 1000, the water of % and 10% gelatin hydrolysate;
Superfine fiber chemical leather base cloth after will flooding at last places holddown groove, adopts glutaraldehyde solution at 35 ℃, carries out 20 minutes fixedly gelatin hydrolysates;
Described glutaraldehyde is a benchmark with the weight of superfine fiber chemical leather base cloth, comprises 500% water and 0.6% glutaraldehyde;
Second step: stuffing is filled
Superfine fiber chemical leather base cloth after at first hydrolysis being flooded adopts the fat liquoring complex agent emulsion superfine fiber chemical leather base cloth to be carried out stuffing, 45 ℃ of temperature, 30 minutes action time through the stuffing groove;
The weight of the superfine fiber chemical leather base cloth after described fat liquoring complex agent emulsion is flooded with hydrolysis is benchmark, comprises 500% water, 5% sulfated castor oil fatting agent, 7% sulphation rapeseed oil fatting agent and 8% sulfuric acid fish oil;
Get into filling slot then, the filling liquid that adopts polyacrylic resin retanning agent and amino resins retanning agent to form is flooded filling, 40 ℃ of temperature, 5 minutes action time;
The weight of the superfine fiber chemical leather base cloth after described filling liquid is flooded with hydrolysis is benchmark, comprises 1000% water, 5% polyacrylic resin retanning agent and 7% amino resins retanning agent;
The 3rd step: dye fixing
Adopt dye jigger; Superfine fiber chemical leather base cloth after stuffing filled utilizes 1: 1 type premetallized dye and DISPERSE DYES to carry out co-bathing dyeing; 90 ℃ of temperature; 120 minutes time, adopt natural tannin and aluminium triformate solution that the superfine fiber chemical leather base cloth after dyeing is carried out fixation, washing and drying then again;
The weight of the superfine fiber chemical leather base cloth after described co-bathing dyeing is filled with stuffing is benchmark, comprises 600% water, 3% 1: 1 type premetallized dye and 2.5% DISPERSE DYES;
The mass fraction of described natural tanning solution is 2%, and the fixation time is 120 minutes;
The mass fraction of described aluminium triformate solution is 4%, and the fixation time is 60 minutes;
The 4th step: napping and shorn velvet
To pass through dye fixing and dried superfine fiber chemical leather base cloth and adopt the teazle gig napping, the sufficient pull-up of superfine fiber chemical leather base cloth surface fiber is come, and adopt single-cutter shearing machine to carry out straight snips suede then, pile height is less than 1mm.
Embodiment 2:
The first step: hydrolysis dipping
At first the superfine fiber chemical leather base cloth is hydrolyzed 40 ℃ of hydrolysis temperatures, 10 minutes time to the superfine fiber chemical leather base cloth through the hydrolytic tank that is contained with enzyme hydrolyzate;
Described enzyme hydrolyzate is a benchmark with the weight of superfine fiber chemical leather base cloth, comprises 300% water, 0.2% diethanol amine, 0.8% pancreatin and 0.5% 1398 neutral proteinase;
Place the dipping tank that is contained with the gelatin hydrolysate maceration extract to flood the superfine fiber chemical leather base cloth after the hydrolysis then, 38 ℃ of dipping temperatures, 20 minutes time;
Described gelatin hydrolysate maceration extract is a benchmark with the weight of superfine fiber chemical leather base cloth, comprises 500% water and 6% gelatin hydrolysate;
Superfine fiber chemical leather base cloth after will flooding at last places holddown groove, adopts glutaraldehyde solution at 36 ℃, carries out 15 minutes fixedly gelatin hydrolysates;
Described glutaraldehyde is a benchmark with the weight of superfine fiber chemical leather base cloth, comprises 300% water and 0.8% glutaraldehyde;
Second step: stuffing is filled
Superfine fiber chemical leather base cloth after at first hydrolysis being flooded adopts the fat liquoring complex agent emulsion superfine fiber chemical leather base cloth to be carried out stuffing, 48 ℃ of temperature, 25 minutes action time through the stuffing groove;
The weight of the superfine fiber chemical leather base cloth after described fat liquoring complex agent emulsion is flooded with hydrolysis is benchmark, comprises 300% water, 7% sulfated castor oil fatting agent, 9% sulphation rapeseed oil fatting agent and 7% sulfuric acid fish oil;
Get into filling slot then, the filling liquid that adopts polyacrylic resin retanning agent and amino resins retanning agent to form is flooded filling, 38 ℃ of temperature, 8 minutes action time;
The weight of the superfine fiber chemical leather base cloth after described filling liquid is flooded with hydrolysis is benchmark, comprises 300% water, 8% polyacrylic resin retanning agent and 9% amino resins retanning agent;
The 3rd step: dye fixing
Adopt dye jigger; Superfine fiber chemical leather base cloth after stuffing filled utilizes 1: 1 type premetallized dye and DISPERSE DYES to carry out co-bathing dyeing; 93 ℃ of temperature; 90 minutes time, adopt natural tannin and aluminium triformate solution that the superfine fiber chemical leather base cloth after dyeing is carried out fixation, washing and drying then again;
The weight of the superfine fiber chemical leather base cloth after described co-bathing dyeing is filled with stuffing is benchmark, comprises 1000% water, 1% 1: 1 type premetallized dye and 3% DISPERSE DYES;
The mass fraction of described natural tanning solution is 4%, and the fixation time is 60 minutes;
The mass fraction of described aluminium triformate solution is 2%, and the fixation time is 120 minutes;
The 4th step: napping and shorn velvet
To pass through dye fixing and dried superfine fiber chemical leather base cloth and adopt the teazle gig napping, the sufficient pull-up of superfine fiber chemical leather base cloth surface fiber is come, and adopt single-cutter shearing machine to carry out straight snips suede then, pile height is less than 1mm.
Embodiment 3:
The first step: hydrolysis dipping
At first the superfine fiber chemical leather base cloth is hydrolyzed 38 ℃ of hydrolysis temperatures, 20 minutes time to the superfine fiber chemical leather base cloth through the hydrolytic tank that is contained with enzyme hydrolyzate;
Described enzyme hydrolyzate is a benchmark with the weight of superfine fiber chemical leather base cloth, comprises 1000% water, 0.3% diethanol amine, 0.3% pancreatin and 0.6% 1398 neutral proteinase;
Place the dipping tank that is contained with the gelatin hydrolysate maceration extract to flood the superfine fiber chemical leather base cloth after the hydrolysis then, 35 ℃ of dipping temperatures, 30 minutes time;
Described gelatin hydrolysate maceration extract is a benchmark with the weight of superfine fiber chemical leather base cloth, comprises 300% water and 5% gelatin hydrolysate;
Superfine fiber chemical leather base cloth after will flooding at last places holddown groove, adopts glutaraldehyde solution at 40 ℃, carries out 5 minutes fixedly gelatin hydrolysates;
Described glutaraldehyde is a benchmark with the weight of superfine fiber chemical leather base cloth, comprises 1000% water and 0.3% glutaraldehyde;
Second step: stuffing is filled
Superfine fiber chemical leather base cloth after at first hydrolysis being flooded adopts the fat liquoring complex agent emulsion superfine fiber chemical leather base cloth to be carried out stuffing, 50 ℃ of temperature, 20 minutes action time through the stuffing groove;
The weight of the superfine fiber chemical leather base cloth after described fat liquoring complex agent emulsion is flooded with hydrolysis is benchmark, comprises 1000% water, 9% sulfated castor oil fatting agent, 5% sulphation rapeseed oil fatting agent and 9% sulfuric acid fish oil;
Get into filling slot then, the filling liquid that adopts polyacrylic resin retanning agent and amino resins retanning agent to form is flooded filling, 36 ℃ of temperature, 16 minutes action time;
The weight of the superfine fiber chemical leather base cloth after described filling liquid is flooded with hydrolysis is benchmark, comprises 500% water, 7% polyacrylic resin retanning agent and 5% amino resins retanning agent;
The 3rd step: dye fixing
Adopt dye jigger; Superfine fiber chemical leather base cloth after stuffing filled utilizes 1: 1 type premetallized dye and DISPERSE DYES to carry out co-bathing dyeing; 91 ℃ of temperature; 100 minutes time, adopt natural tannin and aluminium triformate solution that the superfine fiber chemical leather base cloth after dyeing is carried out fixation, washing and drying then again;
The weight of the superfine fiber chemical leather base cloth after described co-bathing dyeing is filled with stuffing is benchmark, comprises 800% water, 2.5% 1: 1 type premetallized dye and 1% DISPERSE DYES;
The mass fraction of described natural tanning solution is 3%, and the fixation time is 90 minutes;
The mass fraction of described aluminium triformate solution is 3%, and the fixation time is 90 minutes;
The 4th step: napping and shorn velvet
To pass through dye fixing and dried superfine fiber chemical leather base cloth and adopt the teazle gig napping, the sufficient pull-up of superfine fiber chemical leather base cloth surface fiber is come, and adopt single-cutter shearing machine to carry out straight snips suede then, pile height is less than 1mm.
Embodiment 4:
The first step: hydrolysis dipping
At first the superfine fiber chemical leather base cloth is hydrolyzed 36 ℃ of hydrolysis temperatures, 25 minutes time to the superfine fiber chemical leather base cloth through the hydrolytic tank that is contained with enzyme hydrolyzate;
Described enzyme hydrolyzate is a benchmark with the weight of superfine fiber chemical leather base cloth, comprises 800% water, 0.25% diethanol amine, 1% pancreatin and 0.8% 1398 neutral proteinase;
Place the dipping tank that is contained with the gelatin hydrolysate maceration extract to flood the superfine fiber chemical leather base cloth after the hydrolysis then, 36 ℃ of dipping temperatures, 25 minutes time;
Described gelatin hydrolysate maceration extract is a benchmark with the weight of superfine fiber chemical leather base cloth, comprises 800% water and 8% gelatin hydrolysate;
Superfine fiber chemical leather base cloth after will flooding at last places holddown groove, adopts glutaraldehyde solution at 38 ℃, carries out 10 minutes fixedly gelatin hydrolysates;
Described glutaraldehyde is a benchmark with the weight of superfine fiber chemical leather base cloth, comprises 800% water and 0.5% glutaraldehyde;
Second step: stuffing is filled
Superfine fiber chemical leather base cloth after at first hydrolysis being flooded adopts the fat liquoring complex agent emulsion superfine fiber chemical leather base cloth to be carried out stuffing, 52 ℃ of temperature, 15 minutes action time through the stuffing groove;
The weight of the superfine fiber chemical leather base cloth after described fat liquoring complex agent emulsion is flooded with hydrolysis is benchmark, comprises 800% water, 8% sulfated castor oil fatting agent, 8% sulphation rapeseed oil fatting agent and 5% sulfuric acid fish oil;
Get into filling slot then, the filling liquid that adopts polyacrylic resin retanning agent and amino resins retanning agent to form is flooded filling, 37 ℃ of temperature, 12 minutes action time;
The weight of the superfine fiber chemical leather base cloth after described filling liquid is flooded with hydrolysis is benchmark, comprises 800% water, 9% polyacrylic resin retanning agent and 8% amino resins retanning agent;
The 3rd step: dye fixing
Adopt dye jigger; Superfine fiber chemical leather base cloth after stuffing filled utilizes 1: 1 type premetallized dye and DISPERSE DYES to carry out co-bathing dyeing; 95 ℃ of temperature; 60 minutes time, adopt natural tannin and aluminium triformate solution that the superfine fiber chemical leather base cloth after dyeing is carried out fixation, washing and drying then again;
The weight of the superfine fiber chemical leather base cloth after described co-bathing dyeing is filled with stuffing is benchmark, comprises 300% water, 1.5% 1: 1 type premetallized dye and 1.5% DISPERSE DYES;
The mass fraction of described natural tanning solution is 2.5%, and the fixation time is 105 minutes;
The mass fraction of described aluminium triformate solution is 3.5%, and the fixation time is 75 minutes;
The 4th step: napping and shorn velvet
To pass through dye fixing and dried superfine fiber chemical leather base cloth and adopt the teazle gig napping, the sufficient pull-up of superfine fiber chemical leather base cloth surface fiber is come, and adopt single-cutter shearing machine to carry out straight snips suede then, pile height is less than 1mm.
Embodiment 5:
The first step: hydrolysis dipping
At first the superfine fiber chemical leather base cloth is hydrolyzed 39 ℃ of hydrolysis temperatures, 15 minutes time to the superfine fiber chemical leather base cloth through the hydrolytic tank that is contained with enzyme hydrolyzate;
Described enzyme hydrolyzate is a benchmark with the weight of superfine fiber chemical leather base cloth, comprises 600% water, 0.15% diethanol amine, 0.6% pancreatin and 1% 1398 neutral proteinase;
Place the dipping tank that is contained with the gelatin hydrolysate maceration extract to flood the superfine fiber chemical leather base cloth after the hydrolysis then, 39 ℃ of dipping temperatures, 15 minutes time;
Described gelatin hydrolysate maceration extract is a benchmark with the weight of superfine fiber chemical leather base cloth, comprises 600% water and 7% gelatin hydrolysate;
Superfine fiber chemical leather base cloth after will flooding at last places holddown groove, adopts glutaraldehyde solution at 39 ℃, carries out 7 minutes fixedly gelatin hydrolysates;
Described glutaraldehyde is a benchmark with the weight of superfine fiber chemical leather base cloth, comprises 600% water and 1% glutaraldehyde;
Second step: stuffing is filled
Superfine fiber chemical leather base cloth after at first hydrolysis being flooded adopts the fat liquoring complex agent emulsion superfine fiber chemical leather base cloth to be carried out stuffing, 55 ℃ of temperature, 10 minutes action time through the stuffing groove;
The weight of the superfine fiber chemical leather base cloth after described fat liquoring complex agent emulsion is flooded with hydrolysis is benchmark, comprises 600% water, 10% sulfated castor oil fatting agent, 10% sulphation rapeseed oil fatting agent and 10% sulfuric acid fish oil;
Get into filling slot then, the filling liquid that adopts polyacrylic resin retanning agent and amino resins retanning agent to form is flooded filling, 35 ℃ of temperature, 20 minutes action time;
The weight of the superfine fiber chemical leather base cloth after described filling liquid is flooded with hydrolysis is benchmark, comprises 600% water, 10% polyacrylic resin retanning agent and 10% amino resins retanning agent;
The 3rd step: dye fixing
Adopt dye jigger; Superfine fiber chemical leather base cloth after stuffing filled utilizes 1: 1 type premetallized dye and DISPERSE DYES to carry out co-bathing dyeing; 92 ℃ of temperature; 80 minutes time, adopt natural tannin and aluminium triformate solution that the superfine fiber chemical leather base cloth after dyeing is carried out fixation, washing and drying then again;
The weight of the superfine fiber chemical leather base cloth after described co-bathing dyeing is filled with stuffing is benchmark, comprises 450% water, 2% 1: 1 type premetallized dye and 2% DISPERSE DYES;
The mass fraction of described natural tanning solution is 3.5%, and the fixation time is 75 minutes;
The mass fraction of described aluminium triformate solution is 2.5%, and the fixation time is 105 minutes;
The 4th step: napping and shorn velvet
To pass through dye fixing and dried superfine fiber chemical leather base cloth and adopt the teazle gig napping, the sufficient pull-up of superfine fiber chemical leather base cloth surface fiber is come, and adopt single-cutter shearing machine to carry out straight snips suede then, pile height is less than 1mm.
As base material, the mixed solution that adopts diethanol amine, pancreatin, 1398 neutral proteinase to form is hydrolyzed with the superfine fiber chemical leather base cloth in the present invention, makes the superfine fibre appropriate hydrolysis in surface; Increase the hydrophilic radical on the fiber; Flood gelatin hydrolysate then, the gelatin hydrolysate molecule can be adsorbed on the superfine fibre surface, glutaraldehyde meeting and diethanol amine and gelatin hydrolysate that the later stage adds; Diethanol amine and gelatin hydrolysate molecule are fixed on the superfine fibre surface; Thereby increased the hydrophilic radical on superfine fibre surface to a great extent, improved absorption and the transfer function of superfine fiber fabric, finally improved the vapor pervious performance of matte superfine fiber chemical leather steam.Described chemical materials is industrialized chemical products.Adopt the technology of multiple fatting agent associating stuffing, the grease molecule in the fatting agent can be wrapped in around the superfine fibre, and superfine fibre is played lubricated and peptizaiton, has improved the pliability and the feel characteristic of matte superfine fiber chemical leather.Described fatting agent is the industrialized chemical products that adopt in the natural leather process.Adopt 1: 1 type premetallized dye and DISPERSE DYES co-bathing dyeing; Wherein 1: 1 type premetallized dye is mainly painted to superfine fibre; DISPERSE DYES mainly to the polyurethane colouring, adopt natural tannin and aluminium triformate fixation at last, have improved the color and luster and the dyefastness of matte superfine fiber chemical leather.Type premetallized dye, DISPERSE DYES, natural tannin and aluminium triformate were day industrialized chemical products in described 1: 1.Adopt the teazle gig napping, require the sufficient pull-up of surface fiber is come, adopt single-cutter shearing machine to carry out straight snips suede then, improved " writing effect " of matte superfine fiber chemical leather matte, give its good chamois leather outward appearance.Through the enforcement of above technology, can produce high performance matte superfine fiber chemical leather.Described teazle gig and single-cutter shearing machine are engineering goods commonly used in the textile industry.
Claims (1)
1. clothes is characterized in that may further comprise the steps with the production method of high-performance matte superfine fiber chemical leather:
The first step: hydrolysis dipping
At first with the superfine fiber chemical leather base cloth through in the hydrolytic tank that is contained with enzyme hydrolyzate the superfine fiber chemical leather base cloth being hydrolyzed 35～40 ℃ of hydrolysis temperatures, 10～30 minutes time;
Described enzyme hydrolyzate is a benchmark with the weight of superfine fiber chemical leather base cloth, comprises 300%～1000% water, 0.1～0.3% diethanol amine, 0.3～1% pancreatin and 0.3～1% 1398 neutral proteinase;
Place the dipping tank that is contained with the gelatin hydrolysate maceration extract to flood the superfine fiber chemical leather base cloth after the hydrolysis then, 35～40 ℃ of dipping temperatures, 10～30 minutes time;
Described gelatin hydrolysate maceration extract is a benchmark with the weight of superfine fiber chemical leather base cloth, comprises 300%～1000% water and 5%～10% gelatin hydrolysate;
Superfine fiber chemical leather base cloth after will flooding at last places holddown groove to adopt glutaraldehyde solution at 35～40 ℃, carries out 5～20 minutes fixedly gelatin hydrolysates;
Described glutaraldehyde solution is a benchmark with the weight of superfine fiber chemical leather base cloth, comprises 300%～1000% water and 0.3%～1% glutaraldehyde;
Second step: stuffing is filled
At first the superfine fiber chemical leather base cloth behind the hydrolysis dipping is carried out stuffing to the superfine fiber chemical leather base cloth, 45～55 ℃ of temperature, 10～30 minutes action time through adopting the fat liquoring complex agent emulsion in the stuffing groove;
The weight of the superfine fiber chemical leather base cloth after described fat liquoring complex agent emulsion is flooded with hydrolysis is benchmark; Comprise 300%～1000% water; 5%～10% sulfated castor oil fatting agent, 5%～10% sulphation rapeseed oil fatting agent and 5%～10% sulfuric acid fish oil;
Get into filling slot then, the filling liquid that adopts polyacrylic resin retanning agent and amino resins retanning agent to form is flooded filling, 35～40 ℃ of temperature, 5～20 minutes action time;
The weight of the superfine fiber chemical leather base cloth after described filling liquid is flooded with hydrolysis is benchmark, comprises 300%～1000% water, 5%～10% polyacrylic resin retanning agent and 5%～10% amino resins retanning agent;
The 3rd step: dye fixing
Adopt dye jigger; Superfine fiber chemical leather base cloth after stuffing filled utilizes 1: 1 type premetallized dye and DISPERSE DYES to carry out co-bathing dyeing; 90～95 ℃ of temperature; 60～120 minutes time, adopt natural tannin and aluminium triformate solution that the superfine fiber chemical leather base cloth after dyeing is carried out fixation, washing and drying then again;
The weight of the superfine fiber chemical leather base cloth after described co-bathing dyeing is filled with stuffing is benchmark, comprises 300%～1000% water, 1%～3% 1: 1 type premetallized dye and 1%～3% DISPERSE DYES;
The mass fraction of described natural tanning solution is 2%～4%, and the fixation time is 60～120 minutes;
The mass fraction of described aluminium triformate solution is 2%～4%, and the fixation time is 60～120 minutes;
The 4th step: napping and shorn velvet
To pass through dye fixing and dried superfine fiber chemical leather base cloth and adopt the teazle gig napping, the sufficient pull-up of superfine fiber chemical leather base cloth surface fiber is come, and adopt single-cutter shearing machine to carry out straight snips suede then, pile height is less than 1mm.
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| CN103451958A (en) * | 2013-08-27 | 2013-12-18 | 陕西科技大学 | After finishing method for improving compliance of superfine fiber synthetic leather |
| CN103603197A (en) * | 2013-11-12 | 2014-02-26 | 陕西科技大学 | Method for improving dyeing property of superfine fiber synthetic leather base cloth |
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