CN110983783A - High-solid-content artificial leather superfine fiber base cloth and post-treatment manufacturing method thereof - Google Patents

High-solid-content artificial leather superfine fiber base cloth and post-treatment manufacturing method thereof Download PDF

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Publication number
CN110983783A
CN110983783A CN201911374942.5A CN201911374942A CN110983783A CN 110983783 A CN110983783 A CN 110983783A CN 201911374942 A CN201911374942 A CN 201911374942A CN 110983783 A CN110983783 A CN 110983783A
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China
Prior art keywords
base cloth
solid
content
superfine fiber
leather
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Pending
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CN201911374942.5A
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Chinese (zh)
Inventor
程立
张其斌
彭力
马路雯
张丽君
葛庆
胡广东
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Shanghai Huafeng Super Fiber Technology Co Ltd
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Shanghai Huafeng Super Fiber Technology Co Ltd
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Priority to CN201911374942.5A priority Critical patent/CN110983783A/en
Publication of CN110983783A publication Critical patent/CN110983783A/en
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C11/00—Teasing, napping or otherwise roughening or raising pile of textile fabrics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C19/00—Breaking or softening of fabrics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C27/00—Compound processes or apparatus, for finishing or dressing textile fabrics, not otherwise provided for
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/02—Material containing basic nitrogen
    • D06P3/04—Material containing basic nitrogen containing amide groups
    • D06P3/32—Material containing basic nitrogen containing amide groups leather skins
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D06P5/12—Reserving parts of the material before dyeing or printing ; Locally decreasing dye affinity by chemical means
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/50—Modified hand or grip properties; Softening compositions

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)

Abstract

The invention discloses a high-solid-content artificial leather superfine fiber base cloth and a post-treatment manufacturing method thereof. The high-solid-content imitation leather superfine fiber base cloth prepared by the method sequentially comprises the steps of high-solid-content imitation leather primary base cloth preparation, high-solid-content imitation leather primary base cloth dyeing, leather grinding and napping treatment, softening treatment and grain treatment, has good hand feeling and softness, fine wrinkles and velvet feeling like back leather, and is excellent in overall fineness. The softness is more than or equal to 5.5mm (test standard ISO17235: 2002), and the tear strength is more than 70N in transverse direction and longitudinal direction (test standard GB/T8948-2008).

Description

High-solid-content artificial leather superfine fiber base cloth and post-treatment manufacturing method thereof
Technical Field
The invention relates to the field of high-solid artificial leather, in particular to a post-treatment manufacturing method of high-solid artificial leather superfine fiber base cloth.
Background
Natural leather is widely used in every aspect of life by human beings due to its advantages of durability, excellent texture, good air permeability, etc. However, as the natural resources of human beings are continuously reduced and the environmental protection concept is continuously advocated, the application of the natural leather will be less and less.
In recent decades, due to the continuous progress and development of superfine fiber synthetic leather, the appearance and performance of the superfine fiber synthetic leather can be comparable to those of natural leather, even exceed those of the natural leather in some functional aspects. Therefore, the superfine fiber synthetic leather is comprehensively applied and developed in various industries.
However, the superfine fiber synthetic leather still has defects in hand feeling and appearance, and cannot completely meet the requirements in various scenes when being used for preparing the artificial leather, and needs to be improved.
Disclosure of Invention
The invention aims to disclose a post-treatment manufacturing method of high-solid-content artificial leather superfine fiber base cloth, thereby overcoming the problems in the prior art.
The post-treatment manufacturing method of the high-solid-content artificial leather superfine fiber base cloth comprises the following steps:
(1) the method comprises the following steps of (1) preparation of high-solid artificial leather primary base cloth, (2) dyeing of the high-solid artificial leather primary base cloth, (3) buffing and napping treatment, (4) softening treatment and (5) texture treatment, wherein:
the preparation of the high-solid-content artificial leather primary base cloth is carried out by carrying out multi-layer compounding during dipping to obtain a base cloth with a rough surface and a dense layer, and the rest is conventional technology, which can be specifically referred to as literature: qujiabo, a synthetic technology [ M ], Beijing, chemical industry Press, 2010.5;
during impregnation, one layer of non-woven fabric obtained by conventional production is used for impregnating the rough surface by using wet-process polyurethane with certain viscosity in an impregnation tank, and the other layer of non-woven fabric is used for fully introducing the wet-process polyurethane with certain viscosity into the compact layer by extruding through a plurality of compression rollers in the impregnation tank. Wherein the viscosity of the polyurethane is 3000 and 10000 CPS.
The polyurethane is one or more of 4050, 4080, 5020, 3070, 5080 and 4730 produced by Huafeng synthetic resin.
And carrying out overflow dyeing or pad dyeing on the high-solid-content imitation leather primary base cloth to obtain the dyed base cloth. Wherein the overflow dyeing temperature is 85-120 ℃ and the time is 40-80 minutes. The pad dyeing temperature is 90-100 ℃, and the vehicle speed is 4-10 m;
the skin grinding and napping treatment comprises the following steps:
and polishing one surface of the dried microfiber base cloth, and napping the other surface of the microfiber base cloth to achieve the appearance effect similar to real leather. The sand paper used in the buffing and napping treatment is one of 150240400600 meshes.
The softening treatment comprises the following steps:
the base cloth in the step (3) is soaked in an oil agent tank in an impregnation way, the liquid carrying rate is controlled to be 40-60%, and the drying temperature is 110-oC. The oil agent is a mixture of industrial softened water and a softening agent, and the specific weight of the softening agent is 5-30%.
The softening agent is one or more of Nanjing Cutian 890RZ, 8865, 8897 and 8898.
The grain processing method comprises the following steps:
and (4) mechanically rubbing the base cloth in the step (4) in a rubbing equipment for softening, wherein the treatment temperature is 60-130 ℃, and the high-solid-content imitation leather superfine fiber base cloth can be obtained.
The invention has the following beneficial effects: the high-solid-content artificial leather superfine fiber base cloth prepared by the invention has good hand feeling and softness, fine fold lines and velvet feeling like the back leather, and has excellent overall fineness. The softness is more than or equal to 5.5mm (test standard ISO17235: 2002), the tear strength is more than 70N in transverse direction and longitudinal direction (test standard GB/T8948-2008)
Drawings
FIG. 1 is a view showing the effect of the fold lines on the surface and the pile feeling on the back surface of the first to third embodiments of the present invention
Detailed Description
Example 1
1. The nonwoven was impregnated in an impregnation bath with 4050 wet polyurethane using 3000CPS to give a matte surface, and the other layer was fully impregnated by extrusion of 5020 wet polyurethane of 9000CPS in the impregnation bath by a plurality of nip rolls to give a dense layer.
2. Carrying out overflow dyeing treatment on the high-solid-content imitation leather primary base cloth at 105 ℃ for 70 minutes to obtain dyed base cloth;
3. drying the dyed base cloth, and adopting 240-mesh sand paper for both buffing and napping the dried base cloth;
4. soaking the ground and napped base cloth in an oil solution tank in an impregnation mode, adjusting the pressure and the gap of a press roller to control the liquid carrying rate to be 45%, and drying the base cloth in an oven at 120 ℃, wherein the adopted softener is 890RZ of Nanjing Cutian, and the specific gravity of the adopted softener is 15%;
5. finally, mechanically rubbing the high-solid-content simulation leather superfine fiber base cloth subjected to the softening treatment in a graining device at the graining temperature of 60 DEG CoAnd C, obtaining the high-solid skin-imitated superfine fiber base cloth with soft hand feeling, fine lines and excellent back velvet feeling effect. The softness reaches 6, (test standard ISO17235: 2002); the tear strength was 88N and 84N in the transverse and longitudinal directions, respectively (test Standard GB/T8948-2008). The first picture is a front faced wrinkle effect and a back face velvet feeling picture in sequence from top to bottom.
Example 2
1. The non-woven fabric is soaked by 4080 wet-process polyurethane using 4500CPS in a soaking tank to obtain a matte surface, and the other layer is fully soaked by 3070 wet-process polyurethane using 8000CPS in the soaking tank through a plurality of compression rollers to obtain a dense layer.
2. Carrying out pad dyeing on the high-solid-content imitation leather primary base cloth at the temperature of 92 ℃ at the speed of 5m to obtain dyed base cloth;
3. drying the dyed base cloth, and adopting 400-mesh sand paper for both buffing and napping the dried base cloth;
4. soaking the ground and napped base cloth in an oil solution tank in an impregnation mode, adjusting the pressure and the gap of a press roller to control the liquid carrying rate to be 52 percent, and drying the base cloth in an oven at 130 ℃, wherein the adopted softening agent is Nanjing Cutian 8865, and the specific gravity of the adopted softening agent is 12 percent;
5. finally, mechanically rubbing the high-solid-content simulation leather superfine fiber base cloth subjected to the softening treatment in a graining device at the graining temperature of 80 DEG CoAnd C, obtaining the high-solid skin-imitated superfine fiber base cloth with soft hand feeling, fine lines and excellent back velvet feeling effect. The softness reaches 5.5, the test standard (ISO 17235: 2002); the tear strength was 98N and 94N in the transverse and longitudinal directions, respectively (test Standard GB/T8948-2008). The second picture is a front face veneering fold line effect and a back face velvet picture in sequence from top to bottom.
Example 3
1. The nonwoven was impregnated in an impregnation tank with 4730 wet polyurethane using 5200CPS to give a matte surface, and the other layer was fully impregnated with 5080 wet polyurethane of 9500CPS by pressing in an impregnation tank with multiple nip rolls to give a dense layer.
2. Carrying out overflow dyeing treatment on the high-solid-content imitation leather primary base cloth at 95 ℃ for 40 minutes to obtain dyed base cloth;
3. drying the dyed base cloth, and adopting 150-mesh abrasive paper for both buffing and napping the dried base cloth;
4. soaking the ground and napped base cloth in an oil solution tank in an impregnation mode, adjusting the pressure and the gap of a press roller to control the liquid carrying rate to be 55%, and drying the base cloth in an oven at 135 ℃, wherein the adopted softener is Nanjing Cutian 8898, and the specific gravity of the adopted softener is 18%;
5. finally, mechanically rubbing the high-solid-content simulation leather superfine fiber base cloth subjected to the softening treatment in a graining device at the graining temperature of 70 DEG CoAnd C, obtaining the high-solid skin-imitated superfine fiber base cloth with soft hand feeling, fine lines and excellent back velvet feeling effect. Softness reached 6.5, test standard (ISO 17235:2002) (ii) a The tear strength was 89N and 83N in the transverse and longitudinal directions, respectively (test Standard GB/T8948-2008). In the third figure, the front face lamination crease effect and the back face velvet feeling picture are sequentially arranged from top to bottom.
The first to third drawings are sequentially the overlay fold effect and the backside velvet feeling of the first to third embodiments, and although the softness is the highest in the third embodiment, the overlay fold effect and the backside velvet feeling are slightly inferior to those in the first embodiment. The second embodiment has the lowest softness, and the best performance of the overlay crease effect and the back velvet feeling. The texture effect, the back velvet feeling, the softness and the like in the three embodiments have the effects which are comparable with those of the real leather.

Claims (10)

1. The high-solid-content artificial leather superfine fiber base cloth is characterized in that the post-treatment manufacturing method comprises the following steps:
(1) preparing high-solid-content artificial leather primary base cloth, (2) dyeing the high-solid-content artificial leather primary base cloth, (3) polishing and napping, (4) softening, and (5) processing lines.
2. The high-solid-content imitation leather superfine fiber base cloth according to claim 1, wherein the high-solid-content imitation leather virgin base cloth is prepared by carrying out multi-layer compounding during impregnation to obtain a base cloth with a long rough surface and a dense layer.
3. The high-solid-content imitation leather superfine fiber base cloth of claim 2, wherein during impregnation, one layer of the conventionally produced non-woven fabric is impregnated with wet-process polyurethane with certain viscosity in an impregnation tank, and the other layer is extruded by a plurality of press rollers in the impregnation tank to fully introduce the wet-process polyurethane with certain viscosity into the compact layer.
4. The ultrafine fiber substrate with high solid content and simulated skin as claimed in claim 3, wherein the viscosity of polyurethane is 3000-10000 CPS.
5. The high-solid-content artificial leather superfine fiber base cloth according to claim 1, wherein the base cloth dyeing manufacturing method comprises the following steps:
carrying out overflow dyeing or pad dyeing on the high-solid-content imitation leather primary base cloth provided by the previous procedure to obtain dyed base cloth; wherein the overflow dyeing temperature is 85-120 ℃ and the time is 40-80 minutes; the pad dyeing temperature is 90-100 ℃, and the vehicle speed is 4-10 m.
6. The high solid content artificial leather superfine fiber base cloth according to claim 1, wherein the leather grinding and napping treatment comprises the following steps:
and polishing one surface of the dried microfiber base cloth, and napping the other surface of the microfiber base cloth to achieve the appearance effect similar to real leather.
7. The high-solid-content artificial leather superfine fiber base cloth according to claim 6, wherein the sand paper used in the leather polishing and napping treatment is one of 150, 240, 400 and 600 meshes.
8. The high solid content artificial leather superfine fiber base cloth according to claim 1, wherein the softening treatment comprises the following steps:
the base cloth in the step (3) is soaked in an oil agent tank in an impregnation way, the liquid carrying rate is controlled to be 40-60%, and the drying temperature is 110-oC；
The grain processing method comprises the following steps:
and (4) mechanically rubbing the base cloth in the step (4) in a rubbing equipment for softening, wherein the treatment temperature is 60-130 ℃, and the high-solid-content imitation leather superfine fiber base cloth can be obtained.
9. The high solid content artificial leather superfine fiber base cloth according to claim 8, wherein the oil agent is a mixture of industrial softened water and a softening agent, and the specific weight of the softening agent is 5-30%.
10. The high-solid-content imitation leather superfine fiber base cloth of claim 9, wherein the softening agent is one or more of 890RZ, 8865, 8897 and 8898 of Nanjing Cutian.
CN201911374942.5A 2019-12-27 2019-12-27 High-solid-content artificial leather superfine fiber base cloth and post-treatment manufacturing method thereof Pending CN110983783A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN102774098A (en) * 2012-07-27 2012-11-14 烟台万华超纤股份有限公司 Leather-imitated thin-fold-line superfine synthetic leather and preparation method thereof
CN103194912A (en) * 2013-04-19 2013-07-10 福建隆上超纤有限公司 Manufacturing method of superfine fiber synthetic leather
CN104562437A (en) * 2013-10-15 2015-04-29 上海华峰超纤材料股份有限公司 High-simulation superfine fiber nylon-polyurethane base cloth and preparation method thereof
CN106245338A (en) * 2016-09-19 2016-12-21 上海华峰超纤材料股份有限公司 Island ultrafine fiber suede of soft scratch resistance and preparation method thereof
CN109972399A (en) * 2019-03-08 2019-07-05 上海华峰超纤材料股份有限公司 Skin-imitated superfine fiber synthetic leather and its preparation method and application

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN102774098A (en) * 2012-07-27 2012-11-14 烟台万华超纤股份有限公司 Leather-imitated thin-fold-line superfine synthetic leather and preparation method thereof
CN103194912A (en) * 2013-04-19 2013-07-10 福建隆上超纤有限公司 Manufacturing method of superfine fiber synthetic leather
CN104562437A (en) * 2013-10-15 2015-04-29 上海华峰超纤材料股份有限公司 High-simulation superfine fiber nylon-polyurethane base cloth and preparation method thereof
CN106245338A (en) * 2016-09-19 2016-12-21 上海华峰超纤材料股份有限公司 Island ultrafine fiber suede of soft scratch resistance and preparation method thereof
CN109972399A (en) * 2019-03-08 2019-07-05 上海华峰超纤材料股份有限公司 Skin-imitated superfine fiber synthetic leather and its preparation method and application

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Application publication date: 20200410