CN111926587A - Environment-friendly aqueous superfine fiber synthetic leather and processing method thereof - Google Patents

Environment-friendly aqueous superfine fiber synthetic leather and processing method thereof Download PDF

Info

Publication number
CN111926587A
CN111926587A CN202010767752.6A CN202010767752A CN111926587A CN 111926587 A CN111926587 A CN 111926587A CN 202010767752 A CN202010767752 A CN 202010767752A CN 111926587 A CN111926587 A CN 111926587A
Authority
CN
China
Prior art keywords
superfine fiber
finished product
semi
environment
fiber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202010767752.6A
Other languages
Chinese (zh)
Other versions
CN111926587B (en
Inventor
张鹏
刘建生
曹伟南
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
An'an China Co ltd
Original Assignee
An'an China Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by An'an China Co ltd filed Critical An'an China Co ltd
Priority to CN202010767752.6A priority Critical patent/CN111926587B/en
Publication of CN111926587A publication Critical patent/CN111926587A/en
Application granted granted Critical
Publication of CN111926587B publication Critical patent/CN111926587B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, 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
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • 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
    • D06C7/00—Heating or cooling textile fabrics
    • D06C7/02—Setting
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, 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
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0004—Artificial 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)
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, 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
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0011—Artificial 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 non-woven fabrics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, 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
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/007—Artificial 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
    • D06N3/0077—Embossing; Pressing of the surface; Tumbling and crumbling; Cracking; Cooling; Heating, e.g. mirror finish
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, 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
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0086—Artificial 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
    • D06N3/0088—Artificial 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 directly applying the resin
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, 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
    • D06N2211/00—Specially adapted uses
    • D06N2211/12—Decorative or sun protection articles
    • D06N2211/28—Artificial leather

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

The invention provides an environment-friendly aqueous superfine fiber synthetic leather and a processing method thereof, wherein the method comprises the steps of preparing chrysanthemum petal superfine fiber from spinning-grade slices through a spinning process; manufacturing the chrysanthemum petal superfine fiber into superfine fiber non-woven fabric through a needle punching process; shaping the superfine fiber non-woven fabric through a shaping process to obtain base cloth; impregnating the base cloth with aqueous polyurethane slurry, and drying the impregnated base cloth in an oven to obtain an oil-free semi-finished product; performing fiber opening treatment on the oil-free semi-finished product by using a pressing plate type mechanical skin rubbing machine to obtain a fiber opening semi-finished product; drying the split semi-finished product, oiling and shaping, and kneading the shaped split semi-finished product again; and (3) veneering the semi-finished product after the leather is kneaded with aqueous resin to obtain the environment-friendly aqueous superfine fiber synthetic leather. The invention has the advantages that: the whole preparation process adopts environment-friendly raw materials, and a pressing plate type mechanical skin-rubbing machine is adopted for physical fiber splitting, so that the requirement of protecting the environment by human beings can be met, and the safety and health requirements of the human body can be met.

Description

Environment-friendly aqueous superfine fiber synthetic leather and processing method thereof
Technical Field
The invention relates to the technical field of synthetic leather, and particularly relates to environment-friendly aqueous superfine fiber synthetic leather and a processing method thereof.
Background
The leather is animal leather which is obtained by physical and chemical processing such as unhairing, tanning and the like and is denatured and not easy to rot, the leather is formed by tightly weaving natural protein fibers in a three-dimensional space, and the surface of the leather is provided with a special grain layer which has natural grains and luster and comfortable hand feeling. Synthetic leather is a plastic product which simulates the composition and structure of natural leather and can be used as a substitute material of the natural leather, and is usually prepared by taking impregnated non-woven fabric as a net layer and a microporous polyurethane layer as a grain surface layer; the front and back surfaces of the leather are very similar to leather, have certain air permeability, are closer to natural leather than common artificial leather, and are widely used for manufacturing shoes, boots, bags, balls and the like.
The leather has serious environmental pollution in the production process, the heavy metal content is easy to exceed the standard, the manufacturing cost is high, and the leather is difficult to be accepted by the general public. With the continuous improvement of social and economic levels and the enhancement of health and safety awareness of consumers, people pay more and more attention to the problems of environmental protection and health hazard, and meanwhile advocate environmental protection, energy conservation and sustainable development.
At present, a solvent-type production system is mainly adopted in the production of polyurethane synthetic leather, and the use of a large amount of organic solvents not only pollutes the environment, but also seriously damages the health of people. With the enhancement of environmental regulations and environmental awareness of people, the environmental requirements of traditional solvent-based synthetic leather are increasingly difficult. Therefore, the utilization of recycled materials, aqueous and solvent-free synthetic leather or the development of synthetic leather in the future is one of the key driving forces.
In view of the problems of environmental pollution and damage to human health existing in the conventional solvent-based synthetic leather, the inventors of the present invention have conducted intensive studies on the problems and have developed the present invention.
Disclosure of Invention
The invention aims to solve the technical problems of environmental protection type water-based superfine fiber synthetic leather and a processing method thereof, and solves the problems of environmental pollution and damage to human health of the traditional solvent type synthetic leather.
The invention is realized by the following steps:
in a first aspect, a processing method of environment-friendly aqueous superfine fiber synthetic leather comprises the following steps:
firstly, preparing chrysanthemum petal superfine fiber from spinning grade slices through a spinning process;
secondly, manufacturing the chrysanthemum petal superfine fiber into superfine fiber non-woven fabric through a needle punching process;
thirdly, shaping the superfine fiber non-woven fabric through a shaping process to obtain base cloth;
soaking the base cloth in the aqueous polyurethane slurry, and drying the soaked base cloth in an oven to obtain an oil-free semi-finished product;
fifthly, fiber opening treatment is carried out on the oil-free semi-finished product by using a pressing plate type mechanical skin rubbing machine to obtain a fiber opening semi-finished product;
sixthly, drying the fiber-opening semi-finished product, applying oil for shaping, and kneading the shaped fiber-opening semi-finished product again;
and seventhly, veneering the semi-finished product after the leather is kneaded with water-based resin to obtain the environment-friendly water-based superfine fiber synthetic leather.
Further, in the step (r), the spinning grade chip is a PA chip.
Further, the PA slices have a relative viscosity of 2.4-2.9.
Further, in the step (r), the spinning grade chip is a PET chip.
Further, the intrinsic viscosity of the PET chips is 0.8 to 1.0 dl/g.
Further, in the step I, the spinning process comprises the step of preparing the chrysanthemum petal superfine fibers by using a spinneret plate, wherein the single chrysanthemum petal superfine fiber is 16 islands, and the fiber fineness is 2-4 deniers.
Further, the spinning process also comprises the step of oiling the chrysanthemum petal superfine fibers by using hydrogen-containing polyether silicone oil.
Furthermore, after oiling, the oil content of the chrysanthemum petal superfine fiber is 1.5-2.5%.
Further, in the step (II), the needling depth of the needling process is 1-11 mm.
Further, the needle density of the needle punching process is 1700-2400C/cm2。
Further, in the step (II), the density of the ultrafine fiber nonwoven fabric is not less than 0.24g/m 2.
Further, in the third step, the shaping process comprises performing gradient heat shaping on the superfine fiber non-woven fabric by using a multi-stage oven.
Further, the multistage oven is a 7-stage oven.
Further, the shaping process also comprises the step of cooling the heat-shaped superfine fiber non-woven fabric by adopting a cooling roller.
Furthermore, the number of the cooling rollers is 3-5.
Further, the temperature of the cooling roller is 15-25 ℃.
Further, in the step (iv), when the base fabric is impregnated with the aqueous polyurethane slurry, the impregnation process is three times and four times.
Further, the liquid carrying rate of impregnation is 40-60%.
Further, the impregnation time is 3 to 8 minutes.
Further, in the step (iv), the drying temperature of the impregnated base fabric is 140-.
Further, the drying time of the base cloth is 10-15 minutes.
Further, after the base cloth is dried, standing the obtained semi-finished product to be split for 20-28 hours.
Further, in the fifth step, when the pressing plate type mechanical skin-rolling machine carries out fiber-opening treatment on the oil-free semi-finished product, the skin-rolling frequency is 240-.
Further, in the step sixthly, the drying, oiling and shaping of the split semi-finished product are specifically as follows: immersing the split semi-finished product into a modified amino silicone oil solution for impregnation, and drying twice by using an oven after impregnation.
Furthermore, the solubility of the modified amino silicone oil solution is 15-20 g/L.
Further, the drying temperature of the impregnated fiber-opening semi-finished product is 140-.
In a second aspect, the environment-friendly aqueous superfine fiber synthetic leather is prepared by using the processing method.
The invention has the following advantages: the whole preparation process of the invention adopts environment-friendly raw materials, adopts a pressing plate type mechanical leather kneading machine to carry out physical fiber splitting and impregnation by using aqueous polyurethane slurry, and does not need DMF solvent and toluene, thereby not only meeting the requirement of human protection and environmental protection, but also meeting the requirement of human safety and health. The chrysanthemum petal type spinneret plate is used for preparing the chrysanthemum petal superfine fibers, so that after physical splitting is carried out by a pressing plate type mechanical skin-rubbing machine, the hand feeling of the prepared synthetic leather can be ensured to be softer and fuller, and the environment-friendly water-based superfine fiber synthetic leather prepared by the processing method has the advantages of soft and fuller hand feeling, environmental protection, good comfort, high physical property and the like.
Drawings
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is a schematic view of the structure of a spinneret plate according to the present invention.
FIG. 2 is a schematic view of the structure of the spinneret orifice in the present invention.
Description of reference numerals:
1-spinneret plate body, 2-spinneret orifices, 3-partition plates and 4-sector area.
Detailed Description
The invention relates to a processing method of environment-friendly water-based superfine fiber synthetic leather, which comprises the following steps:
manufacturing fibers: preparing the spinning-grade slices into the chrysanthemum petal superfine fibers through a spinning process;
manufacturing non-woven fabrics: manufacturing the chrysanthemum petal superfine fiber into superfine fiber non-woven fabric through a needle punching process;
③ manufacturing the base cloth: shaping the superfine fiber non-woven fabric through a shaping process to obtain base cloth;
soaking and drying: impregnating the base cloth with aqueous polyurethane slurry, and drying the impregnated base cloth in an oven to obtain an oil-free semi-finished product;
fifthly, splitting: performing fiber opening treatment on the oil-free semi-finished product by using a pressing plate type mechanical skin rubbing machine to obtain a fiber opening semi-finished product;
sixthly, drying, shaping and kneading: drying the split semi-finished product, oiling and shaping, and kneading the shaped split semi-finished product again;
seventh, veneering: and (3) veneering the semi-finished product after the leather is kneaded with aqueous resin to obtain the environment-friendly aqueous superfine fiber synthetic leather. Of course, the method may further include a post-processing step such as dyeing, buffing, and splitting.
The traditional superfine fiber synthetic leather needs DMF solvent, so that the problems of environmental pollution and damage to human health exist, the whole preparation process of the invention adopts environment-friendly raw materials, a pressing plate type mechanical leather kneading machine is adopted for physical fiber splitting and aqueous polyurethane slurry impregnation, and DMF solvent and toluene are not needed, so that the requirements of human protection and environmental protection can be met, and the requirements of human safety and health can be met.
In the present invention, in the step (r), the spinning-grade chip is a PA chip (i.e., nylon chip). The PA slices have a relative viscosity of 2.4 to 2.9. Because the PA slices must be melted into fluid during processing, the viscosity of the fluid is one of important indexes influencing nylon processing, and the physical significance of the fluid is that the fluid flow is promoted to generate shear stress per unit velocity; the relative viscosity of the nylon chip is an important index for measuring the performance of the nylon chip, and can reflect the main application to a certain extent. In order to ensure the performance requirement, the relative viscosity of the PA slices needs to be controlled between 2.4 and 2.9.
In the present invention, in the step (r), the spinning-grade chip is a PET chip (i.e., a polyester chip). The intrinsic viscosity of the PET chips is 0.8-1.0 dl/g. Because PET slices must be melted into fluid in processing, the viscosity of the fluid is one of important indexes influencing polyester processing, and the physical significance of the fluid is to promote the flow of the fluid to generate shear stress per unit velocity; the intrinsic viscosity of the polyester chip is an important index for measuring the performance of the polyester chip, and can reflect the main application to a certain extent. In order to ensure the performance requirement, the intrinsic viscosity of the PET chips needs to be controlled between 0.8 and 1.0 dl/g.
In the first step, the spinning process comprises the step of preparing the chrysanthemum petal superfine fibers by using a spinneret plate, wherein the single chrysanthemum petal superfine fiber is 16 islands, and the fiber fineness is 2-4 deniers.
In the present invention, referring to fig. 1 and fig. 2, the spinneret plate includes a spinneret plate body 1, a plurality of spinneret holes 2 are arranged in an array on a lower surface of the spinneret plate body 1, the spinneret holes 2 are circular holes, and each spinneret hole 2 has a corresponding feed inlet (not shown); the spinneret orifice 2 is divided into a plurality of fan-shaped areas 4 by a partition plate 3 by taking the circle center as a central point. The invention designs the spinneret orifice 2 to be a circular structure, and the spinneret orifice 2 is divided into a plurality of fan-shaped areas 4 by a partition plate 3 by taking the circle center as the center point, so that the structure of the manufactured superfine fiber is in a chrysanthemum petal type structure; meanwhile, each spinneret orifice 2 is only correspondingly provided with one feed inlet, so that the manufactured superfine fiber is single-component superfine fiber. The synthetic leather is manufactured by using the chrysanthemum petal type superfine fibers prepared by the spinneret orifice 2, physical fiber splitting is carried out on a semi-finished product only by adopting a pressing plate type mechanical skin rubbing machine during subsequent fiber splitting treatment, and single fibers can be changed into multiple fibers by mechanical rubbing of the pressing plate, so that the manufactured synthetic leather is ensured to be softer and plump in hand feeling.
In the present invention, in order to ensure uniformity of each fiber to ensure better hand feeling, the areas of the fan-shaped regions 4 are equal. The spinning orifices 2 are divided into 16 fan-shaped regions 4 by partitions 3. Through separating into 16 fan-shaped regions 4 with spinneret orifice 2 for in the process of subsequent synthetic leather preparation, accessible physics is opened fine and is become 16 fibre with single fibre, thereby effectively ensures that the feel is softer and plump.
In the invention, the spinning process also comprises the step of oiling the chrysanthemum petal superfine fibers by using hydrogen-terminated polyether silicone oil. The invention aims to oil chrysanthemum petal superfine fiber by using hydrogen-containing polyether silicone oil: to maintain a certain gap between fibers and a resin during impregnation with a rear aqueous resin, to make the Bass touch soft, to increase the comfort, and to improve the physical properties.
In the present invention, in order to improve the flexibility of the bass, the oil content of the chrysanthemum petal superfine fiber after oiling is 1.5-2.5%.
In the invention, in the step (II), the needling depth of the needling process is 1-11 mm. Since the single-component microfiber has poor setting properties, the needle penetration depth must be high.
In the invention, the needle density of the needling process is 1700-2400C/cm2. Since the single-component ultrafine fibers have poor setting properties, the needle density must be high. By adopting the high needling depth and high needle density process, the superfine fibers can be fully entangled so as to ensure the processability of the subsequent process.
In the invention, because the synthetic leather has higher requirement on the density of the non-woven fabric, in order to meet the requirement of the synthetic leather for manufacturing, in the second step, the density of the superfine fiber non-woven fabric is more than or equal to 0.24g/m 2.
In the third step, the shaping process comprises the step of performing gradient heat shaping on the superfine fiber non-woven fabric by using a multi-stage oven. Since the spun and drawn fibers have an imperfect supramolecular structure and are not sufficiently stable, and their physical-mechanical properties are represented by high strength, low elongation, poor toughness and elasticity, and in particular, they undergo significant shrinkage when heated, it is necessary to repair and improve the structure of the fibers already formed during the forming process by heat-setting in order to increase the dimensional stability of the fibers. In order to reduce the shrinkage rate of the fiber, the invention adopts a multi-stage oven to carry out gradient heat setting on the superfine fiber non-woven fabric.
In the invention, in order to further reduce the shrinkage rate of the fibers and ensure the surface smoothness of the base fabric after heat setting, the multistage oven is a 7-stage oven. The temperature of the 7-stage oven can be set to 85 ℃, 101 ℃, 112 ℃, 120 ℃, 125 ℃, 128 ℃ and 130 ℃ in sequence, and the specific temperature can be floated by 2 ℃ from top to bottom on the basis. Through drying gradually from low to high, can effectively guarantee that superfine fiber non-woven fabrics can not be because of the shrink deformation at heat setting's in-process to lead to the non-woven fabrics surface frizzy, the smooth finish is poor.
In the invention, in order to accelerate the production progress, the shaping process also comprises the step of cooling the superfine fiber non-woven fabric subjected to heat shaping by using a cooling roller.
In the invention, the number of the cooling rollers is 3-5 in order to achieve faster and better cooling effect.
In the invention, in order to avoid the influence on the superfine fiber non-woven fabric after heat setting due to the excessively low temperature of the cooling roller, the temperature of the cooling roller is 15-25 ℃.
In the present invention, in the step (iv), when the base fabric is impregnated with the aqueous polyurethane slurry, the impregnation process is three times and four times. The aqueous polyurethane is a novel polyurethane system which takes water as a dispersion medium instead of an organic solvent, and is also called water-dispersed polyurethane, water-system polyurethane or water-based polyurethane; the waterborne polyurethane takes water as a solvent, and has the advantages of no pollution, safety, reliability, excellent mechanical property, good compatibility, easy modification and the like. The three-in four-bundle process refers to the process of three times of impregnation into the aqueous polyurethane slurry and four times of extrusion and rolling through a roller, specifically the process of extrusion and rolling-impregnation-extrusion and rolling-extrusion-impregnation-extrusion and rolling, and the base fabric can be endowed with a certain hand feeling after the three-in four-bundle process.
In the invention, the liquid carrying rate of impregnation is 40-60%, and the impregnation time is 3-8 minutes. In the specific implementation, the impregnation effect is influenced by the liquid carrying rate and the impregnation time, and further the hand feeling of the base fabric is influenced, so that the liquid carrying rate is 40-60% and the impregnation time is 3-8 minutes in order to ensure better hand feeling.
In the invention, in the step (iv), the drying temperature of the impregnated base cloth is 140-. In the specific implementation, too low drying temperature can cause too long drying time, too high drying temperature can cause damage to the base cloth, meanwhile, unreasonable temperature setting can also influence the performance of the finally obtained product, and in order to reduce the drying time and ensure the performance of the finally obtained product, the drying temperature is set to be 140 plus 150 ℃, and the drying time is set to be 10-15 minutes.
In the invention, in order to achieve better crosslinking reaction, after the base cloth is dried, the obtained semi-finished product to be opened is kept stand for 20-28 hours.
In the fifth step, when the pressing plate type mechanical peeling machine is used for fiber opening treatment of the oil-free semi-finished product, the peeling frequency is 240-. The splitting process is a key step for forming the hand feeling of the chrysanthemum petal superfine fiber synthetic leather, and single fibers can be changed into 16 fibers through mechanical kneading of the pressing plate, so that the hand feeling becomes soft and full.
In the invention, in the step sixthly, the drying, oiling and shaping of the split semi-finished product are specifically as follows: immersing the split semi-finished product into a modified amino silicone oil solution for impregnation, and drying twice by using an oven after impregnation. The modified amino silicone oil has good water solubility, does not need emulsification when in use, and the impregnated fabric is soft and comfortable and has certain waterproofness, antistatic property and antifouling property; according to the invention, the fiber-opening semi-finished product is impregnated by using the modified amino silicone oil solution, so that the product is ensured to have the characteristics of softness, comfort, water resistance, pollution resistance, static resistance and the like.
In the invention, in order to achieve better impregnation effect and improve the product performance, the solubility of the modified amino silicone oil solution is 15-20 g/L.
In the invention, in order to achieve the purpose of accelerating the drying of the split semi-finished product and simultaneously avoid the damage of the split semi-finished product due to overhigh temperature, the drying temperature of the split semi-finished product after impregnation is 140-150 ℃.
The technical solution of the present invention is further described with reference to the following specific examples, which all take PA slices as examples:
example 1
A processing method of environment-friendly aqueous superfine fiber synthetic leather comprises the following steps: firstly, spinning the spinning grade slices to prepare the chrysanthemum petal superfine fiber through a spinning process.
In the step (i), the spinning grade slices are PA slices. The relative viscosity of the PA chip was 2.4. The spinning process comprises the step of preparing the chrysanthemum petal superfine fiber by using a spinneret plate, wherein the single chrysanthemum petal superfine fiber is 16 islands, and the fiber fineness is 2 deniers. The spinning process further comprises oiling the chrysanthemum petal superfine fibers by using polyether silicone oil containing hydrogen at the end. After oiling, the oil content of the chrysanthemum petal superfine fiber is 1.5 percent.
② the superfine fiber nonwoven fabric is made from the chrysanthemum petal superfine fiber by the needle punching technique.
In the second step, the needling depth of the needling process is 1 mm. The needle density of the needling process is 1700C/cm2. The density of the superfine fiber non-woven fabric is more than or equal to 0.24g/m 2.
Thirdly, shaping the superfine fiber non-woven fabric through a shaping process to obtain the base fabric.
In the third step, the setting process comprises the step of performing gradient heat setting on the superfine fiber non-woven fabric by adopting a 7-grade oven. The shaping process also comprises the step of cooling the superfine fiber non-woven fabric subjected to heat shaping by adopting a cooling roller. The number of the cooling rollers is 3. The temperature of the cooling roll was 15 ℃.
Soaking the base cloth with the aqueous polyurethane slurry, and drying the soaked base cloth in an oven to obtain the oil-free semi-finished product.
In the step (iv), when the base fabric is impregnated with the aqueous polyurethane slurry, the impregnation process is three times and four times. The impregnation rate was 40%. The impregnation time was 3 minutes. The drying temperature of the impregnated base fabric is 140 ℃. The drying time of the base cloth is 10 minutes. And after the base cloth is dried, standing the obtained semi-finished product to be split for 20 hours.
Fifthly, fiber opening treatment is carried out on the oil-free semi-finished product by using a pressing plate type mechanical rubbing machine to obtain a fiber opening semi-finished product.
In the fifth step, when the pressing plate type mechanical skin-rolling machine is used for fiber opening treatment of the oil-free semi-finished product, the skin-rolling frequency is 240 times/min, the skin-rolling speed is 1m/min, the gap between the pressing plates is 1cm, and the skin is rolled twice according to the process.
Sixthly, drying the fiber-opening semi-finished product, applying oil for shaping, and kneading the shaped fiber-opening semi-finished product again.
In the step sixthly, the drying, oiling and shaping of the split semi-finished product are specifically as follows: immersing the split semi-finished product into a modified amino silicone oil solution for impregnation, and drying twice by using an oven after impregnation. The solubility of the modified amino silicone oil solution is 15 g/L. The drying temperature of the impregnated split-fiber semi-finished product is 140 ℃.
And seventhly, veneering the semi-finished product after the leather is kneaded with water-based resin to obtain the environment-friendly water-based superfine fiber synthetic leather.
Example 2
A processing method of environment-friendly aqueous superfine fiber synthetic leather comprises the following steps: firstly, spinning the spinning grade slices to prepare the chrysanthemum petal superfine fiber through a spinning process.
In the step (i), the spinning grade slices are PA slices. The relative viscosity of the PA chip was 2.6. The spinning process comprises the step of preparing the chrysanthemum petal superfine fiber by using a spinneret plate, wherein the single chrysanthemum petal superfine fiber is 16 islands, and the fiber fineness is 3 deniers. The spinning process further comprises oiling the chrysanthemum petal superfine fibers by using polyether silicone oil containing hydrogen at the end. After oiling, the oil content of the chrysanthemum petal superfine fiber is 2.0 percent.
② the superfine fiber nonwoven fabric is made from the chrysanthemum petal superfine fiber by the needle punching technique.
In the second step, the needling depth of the needling process is 7 mm. The needle density of the needling process is 2000C/cm2. The density of the superfine fiber non-woven fabric is more than or equal to 0.24g/m 2.
Thirdly, shaping the superfine fiber non-woven fabric through a shaping process to obtain the base fabric.
In the third step, the setting process comprises the step of performing gradient heat setting on the superfine fiber non-woven fabric by adopting a 7-grade oven. The shaping process also comprises the step of cooling the superfine fiber non-woven fabric subjected to heat shaping by adopting a cooling roller. The number of the cooling rollers is 4. The temperature of the cooling roll was 15 ℃.
Soaking the base cloth with the aqueous polyurethane slurry, and drying the soaked base cloth in an oven to obtain the oil-free semi-finished product.
In the step (iv), when the base fabric is impregnated with the aqueous polyurethane slurry, the impregnation process is three times and four times. The impregnation rate was 50%. The impregnation time was 5 minutes. The drying temperature of the impregnated base fabric was 145 ℃. The drying time of the base cloth is 13 minutes. And after the base cloth is dried, standing the obtained semi-finished product to be split for 24 hours.
Fifthly, fiber opening treatment is carried out on the oil-free semi-finished product by using a pressing plate type mechanical rubbing machine to obtain a fiber opening semi-finished product.
In the fifth step, when the pressing plate type mechanical skin-rolling machine is used for fiber opening treatment of the oil-free semi-finished product, the skin-rolling frequency is 320 times/min, the skin-rolling speed is 2m/min, the gap between the pressing plates is 2cm, and the skin is rolled twice according to the process.
Sixthly, drying the fiber-opening semi-finished product, applying oil for shaping, and kneading the shaped fiber-opening semi-finished product again.
In the step sixthly, the drying, oiling and shaping of the split semi-finished product are specifically as follows: immersing the split semi-finished product into a modified amino silicone oil solution for impregnation, and drying twice by using an oven after impregnation. The solubility of the modified amino silicone oil solution is 18 g/L. The drying temperature of the impregnated split-fiber semi-finished product is 145 ℃.
And seventhly, veneering the semi-finished product after the leather is kneaded with water-based resin to obtain the environment-friendly water-based superfine fiber synthetic leather.
Example 3
A processing method of environment-friendly aqueous superfine fiber synthetic leather comprises the following steps: firstly, spinning the spinning grade slices to prepare the chrysanthemum petal superfine fiber through a spinning process.
In the step (i), the spinning grade slices are PA slices. The relative viscosity of the PA chip was 2.9. The spinning process comprises the step of preparing the chrysanthemum petal superfine fiber by using a spinneret plate, wherein the single chrysanthemum petal superfine fiber is 16 islands, and the fiber fineness is 4 deniers. The spinning process further comprises oiling the chrysanthemum petal superfine fibers by using polyether silicone oil containing hydrogen at the end. After oiling, the oil content of the chrysanthemum petal superfine fiber is 2.5 percent.
② the superfine fiber nonwoven fabric is made from the chrysanthemum petal superfine fiber by the needle punching technique.
In the second step, the needling depth of the needling process is 11 mm. The needle density of the needling process is 2400C/cm2. The density of the superfine fiber non-woven fabric is more than or equal to 0.24g/m 2.
Thirdly, shaping the superfine fiber non-woven fabric through a shaping process to obtain the base fabric.
In the third step, the setting process comprises the step of performing gradient heat setting on the superfine fiber non-woven fabric by adopting a 7-grade oven. The shaping process also comprises the step of cooling the superfine fiber non-woven fabric subjected to heat shaping by adopting a cooling roller. The number of the cooling rollers is 5. The temperature of the cooling roll was 25 ℃.
Soaking the base cloth with the aqueous polyurethane slurry, and drying the soaked base cloth in an oven to obtain the oil-free semi-finished product.
In the step (iv), when the base fabric is impregnated with the aqueous polyurethane slurry, the impregnation process is three times and four times. The impregnation rate was 60%. The impregnation time was 8 minutes. The drying temperature of the impregnated base fabric is 150 ℃. The drying time of the base cloth is 15 minutes. And after the base cloth is dried, standing the obtained semi-finished product to be split for 28 hours.
Fifthly, fiber opening treatment is carried out on the oil-free semi-finished product by using a pressing plate type mechanical rubbing machine to obtain a fiber opening semi-finished product.
In the fifth step, when the pressing plate type mechanical skin-rolling machine is used for fiber opening treatment of the oil-free semi-finished product, the skin-rolling frequency is 380 times/min, the skin-rolling speed is 3m/min, the gap between the pressing plates is 3cm, and the skin is rolled twice according to the process.
Sixthly, drying the fiber-opening semi-finished product, applying oil for shaping, and kneading the shaped fiber-opening semi-finished product again.
In the step sixthly, the drying, oiling and shaping of the split semi-finished product are specifically as follows: immersing the split semi-finished product into a modified amino silicone oil solution for impregnation, and drying twice by using an oven after impregnation. The solubility of the modified amino silicone oil solution is 20 g/L. The drying temperature of the impregnated split-fiber semi-finished product is 150 ℃.
And seventhly, veneering the semi-finished product after the leather is kneaded with water-based resin to obtain the environment-friendly water-based superfine fiber synthetic leather.
Example 4
A processing method of environment-friendly aqueous superfine fiber synthetic leather comprises the following steps: firstly, spinning the spinning grade slices to prepare the chrysanthemum petal superfine fiber through a spinning process.
In the step (i), the spinning grade slices are PA slices. The relative viscosity of the PA chip was 2.8. The spinning process comprises the step of preparing the chrysanthemum petal superfine fiber by using a spinneret plate, wherein the single chrysanthemum petal superfine fiber is 16 islands, and the fiber fineness is 2 deniers. The spinning process further comprises oiling the chrysanthemum petal superfine fibers by using polyether silicone oil containing hydrogen at the end. After oiling, the oil content of the chrysanthemum petal superfine fiber is 1.8 percent.
② the superfine fiber nonwoven fabric is made from the chrysanthemum petal superfine fiber by the needle punching technique.
In the second step, the needling depth of the needling process is 9 mm. The needle density of the needling process is 2400C/cm2. The density of the superfine fiber non-woven fabric is more than or equal to 0.24g/m 2.
Thirdly, shaping the superfine fiber non-woven fabric through a shaping process to obtain the base fabric.
In the third step, the setting process comprises the step of performing gradient heat setting on the superfine fiber non-woven fabric by adopting a 7-grade oven. The shaping process also comprises the step of cooling the superfine fiber non-woven fabric subjected to heat shaping by adopting a cooling roller. The number of the cooling rollers is 5. The temperature of the cooling roll was 22 ℃.
Soaking the base cloth with the aqueous polyurethane slurry, and drying the soaked base cloth in an oven to obtain the oil-free semi-finished product.
In the step (iv), when the base fabric is impregnated with the aqueous polyurethane slurry, the impregnation process is three times and four times. The impregnation rate was 55%. The impregnation time was 7 minutes. The drying temperature of the impregnated base fabric was 143 ℃. The drying time of the base cloth is 12 minutes. And after the base cloth is dried, standing the obtained semi-finished product to be split for 26 hours.
Fifthly, fiber opening treatment is carried out on the oil-free semi-finished product by using a pressing plate type mechanical rubbing machine to obtain a fiber opening semi-finished product.
In the fifth step, when the pressing plate type mechanical skin-rolling machine carries out fiber opening treatment on the oil-free semi-finished product, the skin-rolling frequency is 220 times/min, the skin-rolling speed is 2.5m/min, the gap between the pressing plates is 1.6cm, and the skin is rolled twice according to the process.
Sixthly, drying the fiber-opening semi-finished product, applying oil for shaping, and kneading the shaped fiber-opening semi-finished product again.
In the step sixthly, the drying, oiling and shaping of the split semi-finished product are specifically as follows: immersing the split semi-finished product into a modified amino silicone oil solution for impregnation, and drying twice by using an oven after impregnation. The solubility of the modified amino silicone oil solution is 15 g/L. The drying temperature of the impregnated split-fiber semi-finished product is 148 ℃.
And seventhly, veneering the semi-finished product after the leather is kneaded with water-based resin to obtain the environment-friendly water-based superfine fiber synthetic leather.
Example 5
A processing method of environment-friendly aqueous superfine fiber synthetic leather comprises the following steps: firstly, spinning the spinning grade slices to prepare the chrysanthemum petal superfine fiber through a spinning process.
In the step (i), the spinning grade slices are PA slices. The relative viscosity of the PA chip was 2.5. The spinning process comprises the step of preparing the chrysanthemum petal superfine fiber by using a spinneret plate, wherein the single chrysanthemum petal superfine fiber is 16 islands, and the fiber fineness is 4 deniers. The spinning process further comprises oiling the chrysanthemum petal superfine fibers by using polyether silicone oil containing hydrogen at the end. After oiling, the oil content of the chrysanthemum petal superfine fiber is 2.2 percent.
② the superfine fiber nonwoven fabric is made from the chrysanthemum petal superfine fiber by the needle punching technique.
In the second step, the needling depth of the needling process is 6 mm. The needle density of the needling process is 1800C/cm2. The density of the superfine fiber non-woven fabric is more than or equal to 0.24g/m 2.
Thirdly, shaping the superfine fiber non-woven fabric through a shaping process to obtain the base fabric.
In the third step, the setting process comprises the step of performing gradient heat setting on the superfine fiber non-woven fabric by adopting a 7-grade oven. The shaping process also comprises the step of cooling the superfine fiber non-woven fabric subjected to heat shaping by adopting a cooling roller. The number of the cooling rollers is 4. The temperature of the cooling roll was 18 ℃.
Soaking the base cloth with the aqueous polyurethane slurry, and drying the soaked base cloth in an oven to obtain the oil-free semi-finished product.
In the step (iv), when the base fabric is impregnated with the aqueous polyurethane slurry, the impregnation process is three times and four times. The impregnation rate was 52%. The impregnation time was 6 minutes. The drying temperature of the impregnated base fabric is 140 ℃. The drying time of the base cloth is 14 minutes. And after the base cloth is dried, standing the obtained semi-finished product to be split for 22 hours.
Fifthly, fiber opening treatment is carried out on the oil-free semi-finished product by using a pressing plate type mechanical rubbing machine to obtain a fiber opening semi-finished product.
In the fifth step, when the pressing plate type mechanical skin-rolling machine is used for fiber opening treatment of the oil-free semi-finished product, the skin-rolling frequency is 360 times/min, the skin-rolling speed is 1m/min, the gap between the pressing plates is 3cm, and the skin is rolled twice according to the process.
Sixthly, drying the fiber-opening semi-finished product, applying oil for shaping, and kneading the shaped fiber-opening semi-finished product again.
In the step sixthly, the drying, oiling and shaping of the split semi-finished product are specifically as follows: immersing the split semi-finished product into a modified amino silicone oil solution for impregnation, and drying twice by using an oven after impregnation. The solubility of the modified amino silicone oil solution is 17 g/L. The drying temperature of the impregnated split-fiber semi-finished product is 149 ℃.
And seventhly, veneering the semi-finished product after the leather is kneaded with water-based resin to obtain the environment-friendly water-based superfine fiber synthetic leather.
Example 6
A processing method of environment-friendly aqueous superfine fiber synthetic leather comprises the following steps: firstly, spinning the spinning grade slices to prepare the chrysanthemum petal superfine fiber through a spinning process.
In the step (i), the spinning grade slices are PA slices. The relative viscosity of the PA chip was 2.4. The spinning process comprises the step of preparing the chrysanthemum petal superfine fiber by using a spinneret plate, wherein the single chrysanthemum petal superfine fiber is 16 islands, and the fiber fineness is 3 deniers. The spinning process further comprises oiling the chrysanthemum petal superfine fibers by using polyether silicone oil containing hydrogen at the end. After oiling, the oil content of the chrysanthemum petal superfine fiber is 1.7 percent.
② the superfine fiber nonwoven fabric is made from the chrysanthemum petal superfine fiber by the needle punching technique.
In the second step, the needling depth of the needling process is 10 mm. The needle density of the needle punching process is 2200C/cm2. The density of the superfine fiber non-woven fabric is more than or equal to 0.24g/m 2.
Thirdly, shaping the superfine fiber non-woven fabric through a shaping process to obtain the base fabric.
In the third step, the setting process comprises the step of performing gradient heat setting on the superfine fiber non-woven fabric by adopting a 7-grade oven. The shaping process also comprises the step of cooling the superfine fiber non-woven fabric subjected to heat shaping by adopting a cooling roller. The number of the cooling rollers is 4. The temperature of the cooling roll was 16 ℃.
Soaking the base cloth with the aqueous polyurethane slurry, and drying the soaked base cloth in an oven to obtain the oil-free semi-finished product.
In the step (iv), when the base fabric is impregnated with the aqueous polyurethane slurry, the impregnation process is three times and four times. The impregnation rate was 60%. The impregnation time was 6 minutes. The drying temperature of the impregnated base fabric is 141 ℃. The drying time of the base cloth is 11 minutes. And after the base cloth is dried, standing the obtained semi-finished product to be split for 25 hours.
Fifthly, fiber opening treatment is carried out on the oil-free semi-finished product by using a pressing plate type mechanical rubbing machine to obtain a fiber opening semi-finished product.
In the fifth step, when the pressing plate type mechanical skin-rolling machine is used for fiber opening treatment of the oil-free semi-finished product, the skin-rolling frequency is 265 times/min, the skin-rolling speed is 2m/min, the gap between the pressing plates is 2.5cm, and the skin is rolled twice according to the process.
Sixthly, drying the fiber-opening semi-finished product, applying oil for shaping, and kneading the shaped fiber-opening semi-finished product again.
In the step sixthly, the drying, oiling and shaping of the split semi-finished product are specifically as follows: immersing the split semi-finished product into a modified amino silicone oil solution for impregnation, and drying twice by using an oven after impregnation. The solubility of the modified amino silicone oil solution is 19 g/L. The drying temperature of the impregnated split-fiber semi-finished product is 143 ℃.
And seventhly, veneering the semi-finished product after the leather is kneaded with water-based resin to obtain the environment-friendly water-based superfine fiber synthetic leather.
The invention relates to environment-friendly water-based superfine fiber synthetic leather which is prepared by the processing method. The environment-friendly water-based superfine fiber synthetic leather prepared by the processing method has the advantages of soft and plump hand feeling, environmental protection, good comfort, high physical property and the like.
Although specific embodiments of the invention have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the appended claims.

Claims (10)

1. A processing method of environment-friendly aqueous superfine fiber synthetic leather is characterized by comprising the following steps: the processing method comprises the following steps:
firstly, preparing chrysanthemum petal superfine fiber from spinning grade slices through a spinning process;
secondly, manufacturing the chrysanthemum petal superfine fiber into superfine fiber non-woven fabric through a needle punching process;
thirdly, shaping the superfine fiber non-woven fabric through a shaping process to obtain base cloth;
soaking the base cloth in the aqueous polyurethane slurry, and drying the soaked base cloth in an oven to obtain an oil-free semi-finished product;
fifthly, fiber opening treatment is carried out on the oil-free semi-finished product by using a pressing plate type mechanical skin rubbing machine to obtain a fiber opening semi-finished product;
sixthly, drying the fiber-opening semi-finished product, applying oil for shaping, and kneading the shaped fiber-opening semi-finished product again;
and seventhly, veneering the semi-finished product after the leather is kneaded with water-based resin to obtain the environment-friendly water-based superfine fiber synthetic leather.
2. The processing method of the environment-friendly aqueous superfine fiber synthetic leather according to claim 1, characterized in that: in the step (i), the spinning grade slices are PA slices.
3. The processing method of the environment-friendly aqueous superfine fiber synthetic leather according to claim 2, characterized in that: the PA slices have a relative viscosity of 2.4 to 2.9.
4. The processing method of the environment-friendly aqueous superfine fiber synthetic leather according to claim 1, characterized in that: in the step (i), the spinning grade chip is a PET chip.
5. The processing method of the environment-friendly aqueous superfine fiber synthetic leather according to claim 4, characterized in that: the intrinsic viscosity of the PET slice is 0.8-1.0 dl/g.
6. The processing method of the environment-friendly aqueous superfine fiber synthetic leather according to claim 1, characterized in that: in the first step, the spinning process comprises the step of preparing the chrysanthemum petal superfine fiber by using a spinneret plate, wherein the single chrysanthemum petal superfine fiber is 16 islands, and the fiber fineness is 2-4 deniers.
7. The processing method of the environment-friendly aqueous superfine fiber synthetic leather according to claim 6, characterized in that: the spinning process further comprises oiling the chrysanthemum petal superfine fibers by using polyether silicone oil containing hydrogen at the end.
8. The processing method of the environment-friendly aqueous superfine fiber synthetic leather according to claim 7, characterized in that: after oiling, the oil content of the chrysanthemum petal superfine fiber is 1.5-2.5%.
9. The processing method of the environment-friendly aqueous superfine fiber synthetic leather according to claim 1, characterized in that: in the second step, the needling depth of the needling process is 1-11 mm.
10. The processing method of the environment-friendly aqueous superfine fiber synthetic leather according to claim 9, characterized in that: the needle density of the needling process is 1700-2400C/cm2。
CN202010767752.6A 2020-08-03 2020-08-03 Environment-friendly aqueous superfine fiber synthetic leather and processing method thereof Active CN111926587B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010767752.6A CN111926587B (en) 2020-08-03 2020-08-03 Environment-friendly aqueous superfine fiber synthetic leather and processing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010767752.6A CN111926587B (en) 2020-08-03 2020-08-03 Environment-friendly aqueous superfine fiber synthetic leather and processing method thereof

Publications (2)

Publication Number Publication Date
CN111926587A true CN111926587A (en) 2020-11-13
CN111926587B CN111926587B (en) 2022-11-22

Family

ID=73306367

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010767752.6A Active CN111926587B (en) 2020-08-03 2020-08-03 Environment-friendly aqueous superfine fiber synthetic leather and processing method thereof

Country Status (1)

Country Link
CN (1) CN111926587B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113502601A (en) * 2021-07-19 2021-10-15 葛飞 Environment-friendly anti-mite non-woven fabric and preparation method thereof
CN116905244A (en) * 2023-06-12 2023-10-20 安安(中国)有限公司 Preparation method of pineapple superfine fiber environment-friendly synthetic leather

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1641096A (en) * 2004-01-16 2005-07-20 三芳化学工业股份有限公司 Superfine fiber artificial leather and fabric preparing method
CN101050599A (en) * 2006-04-03 2007-10-10 三芳化学工业股份有限公司 Artificial leather with superfine fiber in composite fiber in basic material
CN101544074A (en) * 2008-03-27 2009-09-30 三芳化学工业股份有限公司 High-strength environment-friendly ultrafine fiber product with low deformation resistance and method for manufacturing same
KR20100060892A (en) * 2008-11-28 2010-06-07 조두현 Synthetic leather and method of making the same
CN106521956A (en) * 2017-01-14 2017-03-22 天津工业大学 Orange petal type superfine fiber simulation leather base cloth preparation method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1641096A (en) * 2004-01-16 2005-07-20 三芳化学工业股份有限公司 Superfine fiber artificial leather and fabric preparing method
CN101050599A (en) * 2006-04-03 2007-10-10 三芳化学工业股份有限公司 Artificial leather with superfine fiber in composite fiber in basic material
CN101544074A (en) * 2008-03-27 2009-09-30 三芳化学工业股份有限公司 High-strength environment-friendly ultrafine fiber product with low deformation resistance and method for manufacturing same
KR20100060892A (en) * 2008-11-28 2010-06-07 조두현 Synthetic leather and method of making the same
CN106521956A (en) * 2017-01-14 2017-03-22 天津工业大学 Orange petal type superfine fiber simulation leather base cloth preparation method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113502601A (en) * 2021-07-19 2021-10-15 葛飞 Environment-friendly anti-mite non-woven fabric and preparation method thereof
CN116905244A (en) * 2023-06-12 2023-10-20 安安(中国)有限公司 Preparation method of pineapple superfine fiber environment-friendly synthetic leather

Also Published As

Publication number Publication date
CN111926587B (en) 2022-11-22

Similar Documents

Publication Publication Date Title
CN102182015B (en) Method for producing artificial leather base material by compounding collagen fibers by utilizing spun-laced water jetting
CN111926587B (en) Environment-friendly aqueous superfine fiber synthetic leather and processing method thereof
KR101152038B1 (en) Substrate for artificial leathers, artificial leathers and production method of substrate for artificial leathers
CN111926581A (en) Benzene reduction aqueous impregnation superfine fiber synthetic leather and processing method thereof
KR20090127293A (en) Leather-like sheet bearing grain finish and process for producing the same
CN102797071B (en) Orange petal-shaped composite filaments and manufacturing method thereof
US9970139B2 (en) Microfibrous product and the use thereof for the preparation of covers and cases
CN1570267A (en) Process for making high simulation ultra-fine fabric leather based cloth
CN106715787A (en) Suede-like sheet and method for producing same
CN111926580A (en) Polyester microfiber synthetic leather and processing method thereof
JP5746074B2 (en) Method for producing stretchable artificial leather
KR101976120B1 (en) Manufacturing method of artificial leather
CN101446045B (en) Method for manufacturing leather base cloth for sports shoes
CN111101384A (en) Preparation method of super-hydrophobic ecological environment-friendly microfiber leather
KR20180075906A (en) artificial leather with improved durability of abrasion and elasticity, and method of manufacturing the same
JP5860737B2 (en) Elastic artificial leather
CN213013667U (en) Environment-friendly waterborne superfine fiber synthetic leather processingequipment
CN105452559B (en) Tablet and its manufacture method
KR100337990B1 (en) Method of manufacturing nubuck-type artificial leather
JP4620557B2 (en) Leather-like sheet and manufacturing method thereof
KR0160467B1 (en) Method for manufacturing artificial leather
JP4104752B2 (en) Leather-like sheet and method for producing the same
KR0126653B1 (en) Process for the preparation of artificial leather heaving excellent suppleness
KR910009658B1 (en) A process for manufacturing a very flexible synthetic leather
KR102664474B1 (en) artificial leather with improved elasticity and method of manufacturing the same

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant