CN111016357B - Manufacturing method of color-changing sun-proof super-fine leather fabric - Google Patents
Manufacturing method of color-changing sun-proof super-fine leather fabric Download PDFInfo
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- CN111016357B CN111016357B CN201911231779.7A CN201911231779A CN111016357B CN 111016357 B CN111016357 B CN 111016357B CN 201911231779 A CN201911231779 A CN 201911231779A CN 111016357 B CN111016357 B CN 111016357B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/10—Inorganic particles
- B32B2264/107—Ceramic
- B32B2264/108—Carbon, e.g. graphite particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/202—Conductive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/402—Coloured
- B32B2307/4026—Coloured within the layer by addition of a colorant, e.g. pigments, dyes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/402—Coloured
- B32B2307/404—Multi-coloured
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
- B32B2457/208—Touch screens
Abstract
The invention provides a method for manufacturing a color-changing sun-proof microfiber leather fabric, which breaks through the process form of the traditional microfiber leather, and adds an anti-ultraviolet agent into polyurethane liquid to prepare an anti-ultraviolet coating; forming a plurality of criss-cross and communicated grooves on the upper surface of the horizontal plate mold; covering conductive powder on the upper surface of the horizontal plate mold; scraping the conductive powder on the horizontal plate die to deposit the conductive powder in the groove; coating the ultraviolet-resistant coating on a horizontal plate die and scraping; volatilizing a solvent of the ultraviolet-resistant coating to form a polyurethane film with a plurality of criss-cross convex lines; taking down the polyurethane film from the horizontal plate mold; and (3) transferring and compounding the polyurethane film to the surface of the microfiber leather, and enabling the convex lines to face outwards. The microfiber leather with the outer surface provided with the criss-cross and mutually communicated net-shaped convex lines is obtained, the whole outer surface has the ultraviolet-resistant function on the basis that the microfiber leather has the insulating property, and the convex lines form a conductive net structure with flashing, color changing and conductive properties.
Description
Technical Field
The invention relates to the field of artificial leather processing, in particular to a method for manufacturing a color-changing sun-proof microfiber leather fabric.
Background
The superfine fiber is short for sea-island superfine fiber PU synthetic leather, and is prepared by preparing a three-dimensional structure network non-woven fabric by carding and needling superfine fiber staple fibers, and finally preparing superfine fiber leather by wet processing, PU resin impregnation, alkali reduction, buffing, dyeing and finishing and other processes. Superfine fiber is added into PU polyurethane, so that the toughness, air permeability and wear resistance are further enhanced; has excellent wear resistance, cold resistance, air permeability and aging resistance.
The processing technology of the microfiber leather is well known, for example, the chinese invention patent CN108642891A discloses a method for preparing microfiber leather, and the production line sequentially comprises sea island short fibers → high-density spunlace nonwoven fabric → ironing shrinkage → wet impregnation of PU resin → toluene decrement extraction → drying and tentering → oiling and softening → rubbing skin → dry PU veneering → functional treatment → microfiber leather; sea-island short fiber: selecting nylon chips and polyethylene chips, and preparing sea-island short fibers by blending spinning; preparing a high-density spunlace non-woven fabric: feeding, opening, carding and lapping the sea-island short fibers to form a fiber layer with a certain thickness, and mutually intertwining the fibers by using a spunlace method to prepare a three-dimensional structure base fabric with a certain thickness and corresponding density; ironing and shrinking: shrinking in a constant-temperature water bath at the temperature of 75 ℃; wet impregnation of PU resin: soaking the three-dimensional structure base cloth in polyurethane resin with a certain concentration, and fully and uniformly distributing impregnation liquid into gaps of the base cloth in a rolling mode; toluene reduction extraction: dipping the grey cloth in a toluene solution, repeatedly dipping at a specified temperature, and pressing a roller for a certain time to obtain bundle-shaped superfine fibers; dry-process PU veneering: coating a certain amount of polyurethane resin on release paper by a blade coating method, forming a polyurethane film after a solvent is volatilized, and transferring and compounding the polyurethane film to the surface of the microfiber leather. The preparation method of the polyurethane resin comprises the following steps: adding a solvent, polyol and low-molecular-weight diol into a reaction kettle in sequence, fully stirring, controlling the temperature of the kettle to be 45 ℃, adding MT, heating to 80 ℃, reacting at a constant temperature for 2 hours, adding a chain extender and the solvent, stirring uniformly, adding MT, keeping the temperature at 90 ℃, adding methanol and DMF after 2 hours, stopping the reaction, and adding malic acid and DMF to obtain the polyurethane resin. The thickness of the formed fiber layer is 5-6 mm. And (3) dry PU veneering, namely preparing polyurethane resin into the material with the concentration of 20%, coating the polyurethane resin on release paper in a scraping way to form a film, drying the film in an oven at the temperature of 127 ℃, naturally cooling the film, and standing the film for 48 hours.
The processing technology of the microfiber leather is similar to that of other microfiber leathers in the market, the formed microfiber leather is single in color, weak in sun-proof performance and free of electric conductivity, and is not beneficial to being used for operating touch screens of mobile phones (frequently operating the mobile phones by diners in the north in winter) and the like by wearing gloves in winter or being used for operating touch screens of workers needing to wear gloves in winter, or preventing rays such as ultraviolet rays and the like.
Accordingly, the present inventors have made extensive studies to solve the above problems and have made the present invention.
Disclosure of Invention
The invention aims to provide a method for manufacturing a color-changing sun-proof microfiber leather fabric which has obvious color change, sun protection and electric conductivity, is attractive and durable, and is suitable for touch screen operation in winter or corresponding industries.
In order to achieve the purpose, the invention adopts the following technical scheme:
a manufacturing method of a color-changing sun-proof super-fiber leather fabric comprises the following steps:
(1) preparing microfiber leather, polyurethane liquid, an ultraviolet resistant agent, conductive powder and a horizontal plate mold;
(2) adding an anti-ultraviolet agent into the polyurethane liquid to prepare an anti-ultraviolet coating;
(3) forming a plurality of criss-cross and communicated grooves on the upper surface of the horizontal plate mold;
(4) covering conductive powder on the upper surface of the horizontal plate mold;
(5) scraping the conductive powder on the horizontal plate die to deposit the conductive powder in the groove;
(6) coating the ultraviolet-resistant coating on a horizontal plate die and scraping;
(7) volatilizing a solvent of the ultraviolet-resistant coating to form a polyurethane film with a plurality of criss-cross convex lines;
(8) taking down the polyurethane film from the horizontal plate mold;
(9) and (3) transferring and compounding the polyurethane film to the surface of the microfiber leather, and enabling the convex lines to face outwards.
In the step (1), the horizontal plate mold is release paper which is horizontally arranged.
In the step (1), the conductive powder is carbon powder.
In the step (1), the carbon powder is graphite powder.
In the step (1), the amount of the carbon powder is based on forming a continuous line in the groove.
In the step (1), the ultraviolet inhibitor is added into the polyurethane liquid and stirred until the polyurethane liquid is uniform.
In the step (7), the groove separates the release paper into a plurality of rectangular grids arranged in a matrix form.
The grid structure comprises a plurality of grid areas, each grid area comprises a plurality of grid rows which are arranged in parallel, each grid row comprises a plurality of long grids which are arranged along the same direction, and each grid row in each grid area is gradually widened or narrowed from one side to the other side.
In the step (7), the side length of the long square is 0.5-3 mm.
In the step (7), the side length of the long square is 1-2 mm.
In the step (3), a mold with a plurality of criss-cross convex lines is used for pressing the release paper, and a plurality of corresponding criss-cross grooves communicated with each other are formed on the upper surface of the release paper.
In the step (3), the mold comprises a press roll with a plurality of criss-cross convex lines and a rubber roll matched with the press roll; the release paper passes through between the press roller and the rubber roller.
After the technical scheme is adopted, the manufacturing method of the color-changing sun-proof microfiber leather fabric breaks through the process form of the traditional microfiber leather, and the microfiber leather, the polyurethane liquid, the ultraviolet resistant agent, the conductive powder and the horizontal plate mold are prepared; adding an anti-ultraviolet agent into the polyurethane liquid to prepare an anti-ultraviolet coating; the ultraviolet resistant agent can shield and block ultraviolet rays, reduce the penetration of the ultraviolet rays and generate the effects of resisting ultraviolet rays and other rays; the conductive powder is carbon powder or metal powder and the like, and has the functions of conductivity, black and bright flashing property and ultraviolet shielding and blocking; forming a plurality of criss-cross and communicated grooves on the upper surface of the horizontal plate mold; the groove can collect conductive powder in a centralized way, and can also enable the ultraviolet-resistant coating coated on the horizontal plate die to arch downwards, so that the polyurethane film forms criss-cross and mutually communicated net-shaped convex lines, and the conductive powder is positioned at the convex lines, so that the convex lines have flashing and conductive properties, and the groove can be used for gloves in winter or workers needing to wear the gloves, and is convenient for operation of touch screens and the like; covering conductive powder on the upper surface of the horizontal plate mold; uniformly spreading the conductive powder on a horizontal plate die, so that the conductive powder is uniformly deposited in the groove; scraping the conductive powder on the horizontal plate die to deposit the conductive powder in the groove; when the ultraviolet-resistant coating is coated on the horizontal plate mold and enters the groove, the conductive powder is naturally positioned at the lowest end of the ultraviolet-resistant coating; coating the ultraviolet-resistant coating on a horizontal plate die and scraping; the groove is uniformly filled with the ultraviolet-resistant coating, and the upper surface of the groove is smooth; volatilizing a solvent of the ultraviolet-resistant coating to form a polyurethane film with a plurality of criss-cross convex lines; the polyurethane film forms criss-cross and interconnected net-shaped convex lines, the conductive powder is concentrated on the convex lines, and the conductive powder is embedded in the pores and the surface of the polyurethane film and is concentrated at the convex lines, so that the convex lines have flashing and conductive performances, and can be used for gloves in winter or workers needing to wear the gloves, and are convenient for operation of touch screens and the like; the conductive powder is embedded in the pores and the surface of the polyurethane film and is not easy to fall off; taking down the polyurethane film from the horizontal plate mold; and (3) transferring and compounding the polyurethane film to the surface of the microfiber leather, and enabling the convex lines to face outwards. The obtained finished product is microfiber leather with criss-cross and interconnected net-shaped convex lines on the outer surface, on the basis that the microfiber leather has insulating property, the whole outer surface has an ultraviolet-resistant function, and the convex lines form a conductive net structure with flashing, color changing and conductive properties. Compared with the prior art, the manufacturing method of the color-changing sun-proof microfiber leather fabric has the advantages of remarkable color change, sun protection and electric conductivity, is attractive and durable, and is suitable for operation of touch screens and the like in winter or corresponding industries.
Detailed Description
In order to further explain the technical solution of the present invention, the following detailed description is given by way of specific examples.
The invention discloses a method for manufacturing a color-changing sun-proof microfiber leather fabric, which comprises the following steps of:
(1) preparing microfiber leather, polyurethane liquid, an ultraviolet resistant agent, conductive powder and a horizontal plate mold;
(2) adding an anti-ultraviolet agent into the polyurethane liquid to prepare an anti-ultraviolet coating; the ultraviolet resistant agent can shield and block ultraviolet rays, reduce the penetration of the ultraviolet rays and generate the effects of resisting ultraviolet rays and other rays; the conductive powder is carbon powder or metal powder and the like, and has the functions of conductivity, black and bright flashing property and ultraviolet shielding and blocking;
(3) forming a plurality of criss-cross and communicated grooves on the upper surface of the horizontal plate mold; the groove can collect conductive powder in a centralized way, and can also enable the ultraviolet-resistant coating coated on the horizontal plate die to arch downwards, so that the polyurethane film forms criss-cross and mutually communicated net-shaped convex lines, and the conductive powder is positioned at the convex lines, so that the convex lines have flashing and conductive properties, and the groove can be used for gloves in winter or workers needing to wear the gloves, and is convenient for operation of touch screens and the like;
(4) covering conductive powder on the upper surface of the horizontal plate mold; uniformly spreading the conductive powder on a horizontal plate die, so that the conductive powder is uniformly deposited in the groove;
(5) scraping the conductive powder on the horizontal plate die to deposit the conductive powder in the groove; when the ultraviolet-resistant coating is coated on the horizontal plate mold and enters the groove, the conductive powder is naturally positioned at the lowest end of the ultraviolet-resistant coating;
(6) coating the ultraviolet-resistant coating on a horizontal plate die and scraping; the groove is uniformly filled with the ultraviolet-resistant coating, and the upper surface of the groove is smooth;
(7) volatilizing a solvent of the ultraviolet-resistant coating to form a polyurethane film with a plurality of criss-cross convex lines; the polyurethane film forms criss-cross and interconnected net-shaped convex lines, the conductive powder is concentrated on the convex lines, and the conductive powder is embedded in the pores and the surface of the polyurethane film and is concentrated at the convex lines, so that the convex lines have flashing and conductive performances, and can be used for gloves in winter or workers needing to wear the gloves, and are convenient for operation of touch screens and the like; the conductive powder is embedded in the pores and the surface of the polyurethane film and is not easy to fall off;
(8) taking down the polyurethane film from the horizontal plate mold;
(9) and (3) transferring and compounding the polyurethane film to the surface of the microfiber leather, and enabling the convex lines to face outwards. The obtained finished product is microfiber leather with criss-cross and interconnected net-shaped convex lines on the outer surface, on the basis that the microfiber leather has insulating property, the whole outer surface has an ultraviolet-resistant function, and the convex lines form a conductive net structure with flashing, color changing and conductive properties.
Preferably, in the step (1), the horizontal plate mold is a release paper horizontally arranged. The release paper is beneficial to demolding of the polyurethane film and is low in cost.
Preferably, in the step (1), the conductive powder is carbon powder, and the carbon powder has good chemical stability, good conductivity and good durability. The density of the carbon powder is higher than that of solvents such as water and the like, downward deposition is ensured, and the carbon powder can be replaced by metal powder in some special fields needing skid resistance and wear resistance.
Preferably, in the step (1), the carbon powder is graphite powder. The graphite powder is black and bright, is uvioresistant, has stable conductivity, stable chemical property and corrosion resistance, is not easy to react with acid, alkali and other medicaments, and has more stable and durable performance.
Preferably, in the step (1), the amount of the carbon powder is based on forming a continuous line in the groove, so that continuous conductivity is realized. Such as 0.0005-0.02g of carbon powder per square centimeter of the horizontal plate mold.
Preferably, in the step (1), the ultraviolet inhibitor is added to the polyurethane liquid and stirred until the polyurethane liquid is uniform. The step can ensure that the ultraviolet resistant agent is distributed more uniformly in the polyurethane liquid and the ultraviolet resistant effect is more balanced and stable.
Preferably, in the step (7), the grooves divide the release paper into a plurality of rectangular grids arranged in a matrix. The step can ensure that the convex lines on the surface of the final microfiber leather are more regular and ordered, and ensure stable and excellent appearance and conductivity.
Preferably, a plurality of grid areas are included, each grid area comprises a plurality of grid rows arranged in parallel, each grid row comprises a plurality of long grids arranged along the same direction, and each grid row in each grid area is gradually widened or narrowed from one side to the other side. The step can enable the color of the square rows of each square area on the surface of the final microfiber leather to gradually change from light to dark, the color of the whole microfiber leather can change from light to dark or from deep to light, and the color light also gradually changes from dark to bright or from bright to dark, so that the microfiber leather is more attractive as rainbow colors are common.
Preferably, in the step (7), the long square has a side length of 0.5 to 3(0.5, 1, 1.5, 2, 2.5 or 3) mm. The long square grids of the size can enable the conductive net formed by the convex lines to have certain resolution, the minimum resolution can reach 0.5mm, and the touch screen and other operations of a wearer are more accurate; and the convex lines have certain deformability when touching the object, and if the adjacent convex lines are too close, the touch position is jittered or disordered when operating the touch screen.
Preferably, in the step (7), the length of the side of the long square is 1-2 mm.
Preferably, in the step (3), the mold having a plurality of criss-cross protruding lines is used to press the release paper, and a corresponding plurality of criss-cross and communicated grooves are formed on the upper surface of the release paper.
Preferably, in the step (3), the mold comprises a press roll having a plurality of criss-cross raised lines, and a rubber roll cooperating with the press roll; the release paper passes through between the press roller and the rubber roller. The step can realize continuous production of the release paper with the groove.
Preferably, in the step (1), the anti-ultraviolet agent is carbon black, iron oxide red or zinc oxide, and these materials are shielding type anti-ultraviolet materials, which have good effect, especially carbon black, if the powder size is equivalent to the size of graphite powder, the color and the conductivity can be enhanced to a certain extent. The ultraviolet resistant agent can also adopt light absorption type ultraviolet resistant materials such as benzophenone compounds, benzotriazole compounds and the like.
Preferably, in the step (9), the polyurethane film is transfer-compounded to the microfiber skin surface by using a dry coating method.
Preferably, if the horizontal plate mold is a rigid plate structure, the contact surface of the horizontal plate mold, which is in contact with the polyurethane film, is covered with felt paper or a release agent, so that the demolding is facilitated.
The product form of the present invention is not limited to the embodiments, and any suitable changes or modifications of the similar ideas by anyone should be considered as not departing from the patent scope of the present invention.
Claims (10)
1. The manufacturing method of the color-changing sun-proof super-fiber leather fabric is characterized by comprising the following steps of:
(1) preparing microfiber leather, polyurethane liquid, an ultraviolet resistant agent, conductive powder and a horizontal plate mold;
(2) adding an anti-ultraviolet agent into the polyurethane liquid to prepare an anti-ultraviolet coating;
(3) forming a plurality of criss-cross and communicated grooves on the upper surface of the horizontal plate mold;
(4) covering conductive powder on the upper surface of the horizontal plate mold;
(5) scraping the conductive powder on the horizontal plate die to deposit the conductive powder in the groove;
(6) coating the ultraviolet-resistant coating on a horizontal plate die and scraping;
(7) volatilizing a solvent of the ultraviolet-resistant coating to form a polyurethane film with a plurality of criss-cross convex lines;
(8) taking down the polyurethane film from the horizontal plate mold;
(9) transferring and compounding the polyurethane film to the surface of the microfiber leather, and enabling the convex line to face outwards;
in the step (1), the conductive powder is carbon powder;
in the step (1), the amount of the carbon powder is based on forming a continuous line in the groove.
2. The manufacturing method of the color-changing sun-proof super-fine leather fabric according to claim 1, characterized in that: in the step (1), the horizontal plate mold is release paper which is horizontally arranged.
3. The manufacturing method of the color-changing sun-proof super-fine leather fabric according to claim 1, characterized in that: in the step (1), the carbon powder is graphite powder.
4. The manufacturing method of the color-changing sun-proof super-fine leather fabric according to claim 1, characterized in that: in the step (2), the ultraviolet inhibitor is added into the polyurethane liquid and stirred until the polyurethane liquid is uniform.
5. The manufacturing method of the color-changing sun-proof super-fine leather fabric according to claim 2, characterized in that: in the step (3), the groove separates the release paper into a plurality of rectangular grids arranged in a matrix form.
6. The manufacturing method of the color-changing sun-proof super-fine leather fabric according to claim 5, characterized in that: the grid structure comprises a plurality of grid areas, each grid area comprises a plurality of grid rows which are arranged in parallel, each grid row comprises a plurality of long grids which are arranged along the same direction, and each grid row in each grid area is gradually widened or narrowed from one side to the other side.
7. The manufacturing method of the color-changing sun-proof super-fine leather fabric according to claim 5, characterized in that: in the step (3), the side length of the long square grid is 0.5-3 mm.
8. The manufacturing method of the color-changing sun-proof super-fine leather fabric according to claim 7, characterized in that: in the step (3), the side length of the long square grid is 1-2 mm.
9. The manufacturing method of the color-changing sun-proof super-fine leather fabric according to claim 2, characterized in that: in the step (3), a mold with a plurality of criss-cross convex lines is used for pressing the release paper, and a plurality of corresponding criss-cross grooves communicated with each other are formed on the upper surface of the release paper.
10. The method for manufacturing the color-changing sun-proof microfiber leather fabric according to claim 9, wherein the method comprises the following steps: in the step (3), the mold comprises a press roll with a plurality of criss-cross convex lines and a rubber roll matched with the press roll; the release paper passes through between the press roller and the rubber roller.
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| CN201911231779.7A CN111016357B (en) | 2019-12-05 | 2019-12-05 | Manufacturing method of color-changing sun-proof super-fine leather fabric |
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| CN201911231779.7A CN111016357B (en) | 2019-12-05 | 2019-12-05 | Manufacturing method of color-changing sun-proof super-fine leather fabric |
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| CN111016357B true CN111016357B (en) | 2022-02-25 |
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