CN107142737A - A kind of superfine fibre upper leather and preparation method thereof - Google Patents

A kind of superfine fibre upper leather and preparation method thereof Download PDF

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Publication number
CN107142737A
CN107142737A CN201710256540.XA CN201710256540A CN107142737A CN 107142737 A CN107142737 A CN 107142737A CN 201710256540 A CN201710256540 A CN 201710256540A CN 107142737 A CN107142737 A CN 107142737A
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China
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slurry
coating layer
parts
leather
superfine fibre
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CN201710256540.XA
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Chinese (zh)
Inventor
何再秋
陈中华
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张家港市嘉泰超纤科技有限公司
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Priority to CN201710256540.XA priority Critical patent/CN107142737A/en
Publication of CN107142737A publication Critical patent/CN107142737A/en

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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0004Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using ultra-fine two-component fibres, e.g. island/sea, or ultra-fine one component fibres (< 1 denier)
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0056Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
    • D06N3/0061Organic fillers or organic fibrous fillers, e.g. ground leather waste, wood bark, cork powder, vegetable flour; Other organic compounding ingredients; Post-treatment with organic compounds
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/007Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
    • D06N3/0077Embossing; Pressing of the surface; Tumbling and crumbling; Cracking; Cooling; Heating, e.g. mirror finish
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0086Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
    • D06N3/0095Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by inversion technique; by transfer processes
    • D06N3/0097Release surface, e.g. separation sheets; Silicone papers
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2205/00Condition, form or state of the materials
    • D06N2205/02Dispersion
    • D06N2205/023Emulsion, aqueous dispersion, latex
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2209/00Properties of the materials
    • D06N2209/10Properties of the materials having mechanical properties
    • D06N2209/103Resistant to mechanical forces, e.g. shock, impact, puncture, flexion, shear, compression, tear
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2209/00Properties of the materials
    • D06N2209/16Properties of the materials having other properties
    • D06N2209/1664Releasability
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2211/00Specially adapted uses
    • D06N2211/12Decorative or sun protection articles
    • D06N2211/28Artificial leather

Abstract

The invention discloses a kind of superfine fibre upper leather and preparation method thereof, the preparation method comprises the following steps:1)Pretreatment of base material, by superfine fibre base material in the solution immersion containing 3% ~ 8% softening agent;2)Dry method veneer, the coating sizing-agent in release liners, then semi-moist laminating is through step 1)The semi-finished product bass obtained after processing, drying removes release liners, and winding, middle product examine is tested, wherein, the slurry being coated with release liners includes a coating layer, two coating layers, three coating layers being coated on successively in the release liners;3)Aftertreatment technology, crosses water and rubs line.The preparation method of the present invention is simple, handling flexibly has been carried out to base material before veneer, coating paste composition used is simple, by adjusting the temperature in whole preparation process, speed, so that obtained upper leather has high tear, high stripping, the physical property such as color inhibition, hydrolysis, feel and light sensation have large increase, close to even more than natural skin.

Description

A kind of superfine fibre upper leather and preparation method thereof
Technical field
The present invention relates to technical field of synthetic leather, and in particular to a kind of superfine fibre upper leather and preparation method thereof.
Background technology
Natural leather produces commodity and industrial goods due to being widely used in excellent natural characteristic by people, but with The growth of world population, the mankind are doubled to the demand of leather, and a limited number of natural leathers can not meet this need of people already Ask.To solve this contradiction, scientists begin one's study develop artificial leather, synthetic leather decades ago, to make up natural skin The deficiency of leather.And the structure of superfine fibre can be destroyed using traditional processing technology in process, so as to have impact on product Physical property and light sensation, feel, it is impossible to be advantageously applied to upper leather.And in order to solve the above problems, Application No. 201310387703X(Upper leather is rubbed in plant)Point out after dry method veneer, to pass through water based on polyurethane bass in patent document Property inorganic agent printed, handle(Required color is aqueous color)Visual effect attractive in appearance is reached, is ground by embossing the depth Study carefully and reach closest to corium surface particles sense, reached by the water-based material processing of the particle bossing after embossing closest Or more than the sense of touch of corium, by temperature, humidity, the line technical study of rubbing of time control is reached closest to corium or more than true The soft degree and careful degree of skin.But treatment process steps are various thereafter, while the raw material variety that slurry is used is more, Stripping performance is not strong.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art there is provided a kind of preparation method of superfine fibre upper leather, is adopted With the upper leather obtained by the preparation method, the performance of its light sensation, feel and natural leather is very close to, while the upper leather has There are the characteristics such as high tear, high stripping, color inhibition, hydrolysis.
To reach above-mentioned purpose, the technical solution adopted by the present invention is:A kind of preparation method of superfine fibre upper leather, bag Include following steps:
1)Pretreatment of base material, by superfine fibre base material by the solution immersion containing 3% ~ 8% softening agent after, be delivered to 100 ~ Dried, wound in 130 DEG C of baking oven, semi-finished product bass is examined;
2)Dry method veneer, the coating sizing-agent in release liners, then semi-moist laminating is through step 1)The semi-finished product bass obtained after processing, Drying, removes release liners, winding, and middle product examine tests, wherein, the slurry being coated with release liners include being coated on successively it is described from A coating layer, two coating layers, three coating layers on type paper;
3)Aftertreatment technology, by step 2)After the middle product obtained are infiltrated by concentration for 2% ~ 4% aqueous slipping agent, pass through 4 It is placed in after ~ 6kg compression roller extruding in boarding machine and carries out rubbing line processing, during which, the temperature control in boarding machine is at 50 ~ 65 DEG C Between, line time control is rubbed in 60 ~ 90min, then pulls out cooling, product inspection;
Wherein, step 2)Described in the slurry that is used of a coating layer include the component of following mass fraction:It is water-fast without xanthochromia Solve 100 parts of resin, DMF35 ~ 45 part, MEK15 ~ 25 part, 10 ~ 15 parts of colorant, the slurry viscosity of a coating layer for 3500 ~ 4500cps;
The slurry that two described coating layers are used includes the component of following mass fraction:Without 100 parts of xanthochromia hydrolysis resin, DMF25 ~ 35 part, MEK8 ~ 12 part, 8 ~ 12 parts of colorant, the slurry viscosity of two coating layer is 5500 ~ 6500cps;
The slurry that three described coating layers are used includes the component of following mass fraction:Without 100 parts of xanthochromia hydrolysis resin, DMF25 ~ 35 part, MEK18 ~ 25 part, 6 ~ 10 parts of colorant, levelling help 0.02 ~ 0.04 part of agent of stripping, the slurry viscosity of three coating layer For 5500 ~ 6500cps.
Preferably, step 1)Employed in softening agent be purchased from Jiande City Shunfa Chemical Additive Co., Ltd. produce model For SF-348 softening agents.
Preferably, step 1)Employed in baking oven length be 25 meters, speed be 8 ~ 10 ms/min.
Preferably, step 2)In, the detailed process of dry method veneer is as follows:
21)The slurry of a coating layer is prepared on the first painting platform, the release liners are then coated directly onto using direct method On, a coating layer is formed through 5 meters of long oven for drying, wherein, oven temperature is 120 DEG C ~ 130 DEG C, and speed is 8 ms/min Clock;
22)The slurry of two coating layer is prepared on the second painting platform, a coating layer is then coated on away from described release Paper side, two coating layer is formed through 12 meters of long oven for drying, wherein, oven temperature be 120 DEG C ~ 130 DEG C, speed be 8 meters/ Minute;
23)The slurry of three coating layer is prepared on the 3rd painting platform, two coating layer is then coated on away from a painting Coated side, three coating layer is formed through 18 meters of long oven for drying, wherein, oven temperature is 120 DEG C ~ 130 DEG C, and speed is 8 M/min;
24)By step 1)The obtained semi-finished product bass is semi-moist with deviating from two coating layers side progress on three coating layer Laminating, wherein, veneer scald roll temperature be 170 DEG C, laminate pressure is 4kg, and after through 25 meters of long oven for drying, wherein, baking oven Temperature is 120 DEG C ~ 130 DEG C, and speed is 8 ms/min;
25)The release liners are peeled off, wound, middle product examine is tested, 6 ~ 12 hours are stood.
Preferably, it is purchased from Jiaxing standing grain without xanthochromia hydrolysis resin used in a coating layer and two coating layer slurries 1051 resins of glad chemical industry Co., Ltd production;Being purchased without xanthochromia hydrolysis resin used in the three coating layers slurry 5014 resins produced from Jiaxing Hexin Chemical Industrial Co., Ltd.
Preferably, the levelling employed in the slurry of three coating layer helps stripping agent to be that the similar levelling wettings of BYK9565 are helped Shell agent.
Preferably, the step 3)Employed in aqueous slipping agent be purchased from Jiande City Shunfa Chemical Additive Co., Ltd. The SF-300 slipping agents of production.
Preferably, the step 2)In, the slurry that a coating layer is used is by 100 parts of nothings according to the mass fraction Xanthochromia hydrolysis resin, 40 parts of DMF, 20 parts of MEK, 12 parts of coloring material for mixing are formed, and the viscosity of its slurry is 4000cps;Described two The slurry that coating layer is used, is without xanthochromia hydrolysis resin, 30 parts of DMF, 10 parts of MEK, 10 by 100 parts according to the mass fraction Part coloring material for mixing is formed, and the viscosity of its slurry is 6000cps;The slurry that three coating layer is used, according to the mass fraction, be Stripping agent is helped to mix without xanthochromia hydrolysis resin, 30 parts of DMF, 20 parts of MEK, 8 parts of colorants, 0.03 part of levelling by 100 parts, it is starched The viscosity of material is 6000cps.
It is a further object to provide a kind of superfine fibre upper leather being prepared from by above-mentioned preparation method, institute Upper leather is stated including superfine fibre substrate layer and the positive dope layer of superfine fibre substrate layer is transferred to by release liners, The dope layer including through-thickness be coated on successively positive three coating layer of the superfine fibre substrate layer, two coating layers, One coating layer.
Due to the utilization of above-mentioned technical proposal, the present invention has following advantages compared with prior art:The preparation of the present invention Method, by carrying out flexible pre-treatment to superfine fibre base material so that upper leather obtained by preparation in feel with natural leather more Close, while during dry method veneer, paste composition that three coatings are used is simple, preparation process is simple, and zero-emission, Environmental protection, using the upper leather obtained by the preparation method, will not destroy the structure of superfine fibre, in feel and light sensation with Natural leather is closer, and softness is more excellent than natural leather, while the peel strength warp-wise of obtained upper leather is up to 107 N/ 3cm, broadwise is up to 100 N/3cm;Tearing strength warp-wise reaches 133N, and broadwise reaches 134N;Tensile strength warp-wise up to 509 N/2.5cm, Broadwise is up to 613 N/2.5cm;Elongation warp-wise is up to 146%, and broadwise is up to 106%;Color inhibition grade > 4.5.
Embodiment
Technical scheme is further elaborated with reference to specific embodiment:
Front discussed below, the back side are that, so that upper leather is made after vamp, the one side observed by sight is front, sight Not it is observed that one side be the back side.
Embodiment 1
A kind of superfine fibre upper leather is provided in this example, the upper leather includes superfine fibre substrate layer and turned by release liners The positive dope layer of superfine fibre substrate layer is moved to, the dope layer is coated on the superfine fibre base successively including through-thickness Positive three coating layer of material layer, two coating layers, a coating layer.
The superfine fibre base material being previously mentioned in this example is purchased from Shanghai Huafon Micreofibre Technology Co., Ltd..
Specifically, the preparation method of the superfine fibre upper leather is as follows, including following steps:
1)Pretreatment of base material, by superfine fibre base material by the solution immersion containing 3% ~ 8% softening agent after, be delivered to 100 ~ Is dried, is wound in 130 DEG C of baking oven, semi-finished product bass is examined, baking oven length adopted here is 25 meters, speed for 8 ~ 10 ms/min;
The model SF-348 that softening agent employed in this example is produced purchased from Jiande City Shunfa Chemical Additive Co., Ltd. is soft Agent, by carrying out handling flexibly to superfine fibre base material so that the upper leather being made is closer with natural leather in feel, even More than natural leather;
2)Dry method veneer, the coating sizing-agent in release liners, then the above-mentioned semi-finished product bass of semi-moist laminating, drying, are removed release Paper, winding, middle product examine is tested, wherein, the slurry being coated with release liners includes the painting being coated on successively in the release liners Coating, two coating layers, three coating layers, concrete operations are as follows:
21)The slurry of a coating layer is prepared on the first painting platform, is then coated directly onto using direct method in release liners, through 5 meters Long oven for drying one coating layer of formation, wherein, oven temperature is 120 DEG C ~ 130 DEG C, and speed is 8 ms/min, a painting here The slurry of coating, is to be mixed by 100 parts without xanthochromia hydrolysis resin, 40 parts of DMF, 20 parts of MEK, 12 parts of colorants according to the mass fraction Close, the viscosity of its slurry is 4000cps, here limited purchased from the glad chemical industry of Jiaxing standing grain without xanthochromia hydrolysis resin 1051 resins of company's production;
22)The slurry of two coating layers is prepared on the second painting platform, a coating layer is then coated on away from release liners side, it is long through 12 meters Oven for drying formation two coating layers, wherein, oven temperature be 120 DEG C ~ 130 DEG C, speed be 8 ms/min, here two apply apply The slurry of layer, is without xanthochromia hydrolysis resin, 30 parts of DMF, 10 parts of MEK, 10 parts of coloring material for mixing by 100 parts according to the mass fraction , the viscosity of its slurry is 6000cps, here be purchased from the limited public affairs of the glad chemical industry of Jiaxing standing grain without xanthochromia hydrolysis resin Take charge of 1051 resins of production;
23)The slurry of three coating layers is prepared on the 3rd painting platform, two coating layers are then coated on away from a coating layer side, through 18 meters Long oven for drying three coating layers of formation, wherein, oven temperature is 120 DEG C ~ 130 DEG C, and speed is 8 ms/min, three paintings here The slurry of coating, according to the mass fraction, be by 100 parts without xanthochromia hydrolysis resin, 30 parts of DMF, 20 parts of MEK, 8 parts of colorants, The wetting of 0.03 part of BYK9565 similar levellings helps what stripping agent was mixed, and the viscosity of its slurry is 6000cps, here without xanthochromia Hydrolysis resin is purchased from 5014 resins that Jiaxing Hexin Chemical Industrial Co., Ltd produces;
24)By step 1)Obtained semi-finished product bass with three coating layers away from two coating layer sides carry out it is semi-moist fit, wherein, paste Face scald roll temperature be 170 DEG C, laminate pressure is 4kg, and after through 25 meters of long oven for drying, wherein, oven temperature be 120 DEG C ~ 130 DEG C, speed is 8 ms/min;
25)Release liners are peeled off, wound, middle product examine is tested, 6 ~ 12 hours are stood;
The slurry that the present invention is coated with, its formula components are simple, and the upper leather environmental protection being made, zero-emission is matched somebody with somebody using above-mentioned After the slurry coating of side, coordinate the slurry viscosity of each coating, the speed into baking oven, its obtained upper leather stripping performance is good, Color inhibition, anti-hydrolytic performance add, and tearing strength is high.
3)Aftertreatment technology, by step 2)After the middle product obtained are infiltrated by concentration for 2% ~ 4% aqueous slipping agent, lead to Be placed in after the compression roller extruding for crossing 4 ~ 6kg in boarding machine and carry out rubbing line processing, during which, the temperature control in boarding machine at 60 DEG C, Line time control is rubbed in 60 ~ 90min, cooling, product inspection is then pulled out, you can obtain required superfine fibre upper leather.Through Cross after aqueous slipping agent infiltration, the feel of its upper leather is more smooth, almost consistent with natural leather on light sensation.Here aqueous cunning Refreshing agent is the SF-300 slipping agents produced purchased from Jiande City Shunfa Chemical Additive Co., Ltd..
Physical property using the upper leather obtained by the preparation method in this example is detected, data below is obtained:
Peel strength:Warp-wise is up to 107 N/3cm, and broadwise is up to 100 N/3cm;
Tearing strength:Warp-wise reaches 133N, and broadwise reaches 134N;
Tensile strength:Warp-wise is up to 509 N/2.5cm, and broadwise is up to 613 N/2.5cm;
Elongation:Warp-wise is up to 146%, and broadwise is up to 106%;
Color inhibition grade > 4.5.
Embodiment 2
This example discloses a kind of preparation method of superfine fibre upper leather, and it in place of the difference of embodiment 1 with being:Step 2)In The slurry that is used of a coating layer, according to the mass fraction, by 100 parts without xanthochromia hydrolysis resin, 35 parts of DMF, 25 parts of MEK, 10 parts of coloring material for mixing are formed, and its slurry viscosity is 4200cps;
The slurry that two coating layers are used, according to the mass fraction, by 100 parts without xanthochromia hydrolysis resin, 25 parts of DMF, 12 parts MEK, 8 parts of coloring material for mixing are formed, and its slurry viscosity is 5800cps;
The slurry that three coating layers are used, according to the mass fraction, by 100 parts without xanthochromia hydrolysis resin, 28 parts of DMF, 22 parts MEK, 8 parts of colorants, 0.04 part of levelling help stripping agent to mix, and its slurry viscosity is 6100cps.
Physical property using the upper leather obtained by the preparation method in this example is detected, data below is obtained:
Peel strength:Warp-wise is up to 95.8 N/3cm, and broadwise is up to 84.9 N/3cm;
Tearing strength:Warp-wise reaches 116N, and broadwise reaches 126N;
Tensile strength:Warp-wise reaches 549N/2.5cm up to 478.5 N/2.5cm, broadwise;
Elongation:Warp-wise is up to 140%, and broadwise is up to 103%;
Color inhibition grade > 4.5.
It will be seen that by carrying out advance handling flexibly to superfine fibre base material from embodiment 1 and embodiment 2, Obtained upper leather in feel with natural leather closest to even it is more excellent than natural leather, the present invention in slurry used into Divide simple, obtained upper leather green non-pollution has accomplished zero-emission, meanwhile, by adjusting DMF, MEK proportioning, carry significantly The high physical property of upper leather.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art Scholar can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all according to the present invention The equivalent change or modification that Spirit Essence is made, should all be included within the scope of the present invention.

Claims (9)

1. a kind of preparation method of superfine fibre upper leather, it is characterised in that comprise the following steps:
1)Pretreatment of base material, by superfine fibre base material by the solution immersion containing 3% ~ 8% softening agent after, be delivered to 100 ~ Dried, wound in 130 DEG C of baking oven, semi-finished product bass is examined;
2)Dry method veneer, the coating sizing-agent in release liners, then semi-moist laminating is through step 1)The semi-finished product bass obtained after processing, Drying, removes release liners, winding, and middle product examine tests, wherein, the slurry being coated with release liners include being coated on successively it is described from A coating layer, two coating layers, three coating layers on type paper;
3)Aftertreatment technology, by step 2)After the middle product obtained are infiltrated by concentration for 2% ~ 4% aqueous slipping agent, pass through 4 It is placed in after ~ 6kg compression roller extruding in boarding machine and carries out rubbing line processing, during which, the temperature control in boarding machine is at 50 ~ 65 DEG C Between, line time control is rubbed in 60 ~ 90min, then pulls out cooling, product inspection;
Wherein, step 2)Described in the slurry that is used of a coating layer include the component of following mass fraction:It is water-fast without xanthochromia Solve 100 parts of resin, DMF35 ~ 45 part, MEK15 ~ 25 part, 10 ~ 15 parts of colorant, the slurry viscosity of a coating layer for 3500 ~ 4500cps;
The slurry that two described coating layers are used includes the component of following mass fraction:Without 100 parts of xanthochromia hydrolysis resin, DMF25 ~ 35 part, MEK8 ~ 12 part, 8 ~ 12 parts of colorant, the slurry viscosity of two coating layer is 5500 ~ 6500cps;
The slurry that three described coating layers are used includes the component of following mass fraction:Without 100 parts of xanthochromia hydrolysis resin, DMF25 ~ 35 part, MEK18 ~ 25 part, 6 ~ 10 parts of colorant, levelling help 0.02 ~ 0.04 part of agent of stripping, the slurry viscosity of three coating layer For 5500 ~ 6500cps.
2. the preparation method of superfine fibre upper leather according to claim 1, it is characterised in that step 1)Employed in Softening agent is purchased from the model SF-348 softening agents that Jiande City Shunfa Chemical Additive Co., Ltd. produces.
3. the preparation method of superfine fibre upper leather according to claim 1, it is characterised in that step 1)Employed in Baking oven length is 25 meters, and speed is 8 ~ 10 ms/min.
4. the preparation method of superfine fibre upper leather according to claim 1, it is characterised in that step 2)In, dry method patch The detailed process in face is as follows:
21)The slurry of a coating layer is prepared on the first painting platform, the release liners are then coated directly onto using direct method On, a coating layer is formed through 5 meters of long oven for drying, wherein, oven temperature is 120 DEG C ~ 130 DEG C, and speed is 8 ms/min Clock;
22)The slurry of two coating layer is prepared on the second painting platform, a coating layer is then coated on away from described release Paper side, two coating layer is formed through 12 meters of long oven for drying, wherein, oven temperature be 120 DEG C ~ 130 DEG C, speed be 8 meters/ Minute;
23)The slurry of three coating layer is prepared on the 3rd painting platform, two coating layer is then coated on away from a painting Coated side, three coating layer is formed through 18 meters of long oven for drying, wherein, oven temperature is 120 DEG C ~ 130 DEG C, and speed is 8 M/min;
24)By step 1)The obtained semi-finished product bass is semi-moist with deviating from two coating layers side progress on three coating layer Laminating, wherein, veneer scald roll temperature be 170 DEG C, laminate pressure is 4kg, and after through 25 meters of long oven for drying, wherein, baking oven Temperature is 120 DEG C ~ 130 DEG C, and speed is 8 ms/min;
25)The release liners are peeled off, wound, middle product examine is tested, 6 ~ 12 hours are stood.
5. the preparation method of superfine fibre upper leather according to claim 1 a, it is characterised in that coating layer and two Used in coating layer slurry 1051 trees that Jiaxing Hexin Chemical Industrial Co., Ltd produces are purchased from without xanthochromia hydrolysis resin Fat;Being produced without xanthochromia hydrolysis resin purchased from Jiaxing Hexin Chemical Industrial Co., Ltd used in the three coating layers slurry 5014 resins.
6. the preparation method of superfine fibre upper leather according to claim 1, it is characterised in that the slurry of three coating layer Levelling employed in material helps stripping agent to be that the similar levelling wettings of BYK9565 help stripping agent.
7. the preparation method of superfine fibre upper leather according to claim 1, it is characterised in that the step 3)It is middle to be adopted Aqueous slipping agent is the SF-300 slipping agents produced purchased from Jiande City Shunfa Chemical Additive Co., Ltd..
8. the preparation method of superfine fibre upper leather according to claim 1, it is characterised in that the step 2)In, institute State the slurry that a coating layer is used, according to the mass fraction, be by 100 parts without xanthochromia hydrolysis resin, 40 parts of DMF, 20 parts MEK, 12 parts of coloring material for mixing are formed, and the viscosity of its slurry is 4000cps;The slurry that two coating layer is used, by mass parts Number meter, is to be formed by 100 parts without xanthochromia hydrolysis resin, 30 parts of DMF, 10 parts of MEK, 10 parts of coloring material for mixing, the viscosity of its slurry For 6000cps;The slurry that three coating layer is used, is without xanthochromia hydrolysis resin, 30 by 100 parts according to the mass fraction Part DMF, 20 parts of MEK, 8 parts of colorants, 0.03 part of levelling help stripping agent to mix, and the viscosity of its slurry is 6000cps.
9. a kind of superfine fibre upper leather, as the system of the superfine fibre upper leather described in any claim in claim 1 to 8 Preparation Method is prepared from, it is characterised in that the upper leather includes superfine fibre substrate layer and is transferred to institute by release liners The positive dope layer of superfine fibre substrate layer is stated, the dope layer is coated on the superfine fibre base successively including through-thickness Positive three coating layer of material layer, two coating layers, a coating layer.
CN201710256540.XA 2017-04-18 2017-04-18 A kind of superfine fibre upper leather and preparation method thereof CN107142737A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103015219A (en) * 2012-12-27 2013-04-03 福建可利得皮革纤维有限公司 Method for producing multifunctional waterborne polyurethane superfine fiber decorative leather
CN104313894A (en) * 2014-09-18 2015-01-28 王建岳 Preparation method of sea-island microfiber PU synthetic leather
CN106283683A (en) * 2016-11-03 2017-01-04 张家港嘉泰合成革有限公司 A kind of water suction ventilated ultrafine fiber synthetic leather

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103015219A (en) * 2012-12-27 2013-04-03 福建可利得皮革纤维有限公司 Method for producing multifunctional waterborne polyurethane superfine fiber decorative leather
CN104313894A (en) * 2014-09-18 2015-01-28 王建岳 Preparation method of sea-island microfiber PU synthetic leather
CN106283683A (en) * 2016-11-03 2017-01-04 张家港嘉泰合成革有限公司 A kind of water suction ventilated ultrafine fiber synthetic leather

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