CN112376290A - Preparation method of deep-texture solvent-free synthetic leather - Google Patents
Preparation method of deep-texture solvent-free synthetic leather Download PDFInfo
- Publication number
- CN112376290A CN112376290A CN202011135583.0A CN202011135583A CN112376290A CN 112376290 A CN112376290 A CN 112376290A CN 202011135583 A CN202011135583 A CN 202011135583A CN 112376290 A CN112376290 A CN 112376290A
- Authority
- CN
- China
- Prior art keywords
- solvent
- free
- deep
- parts
- synthetic leather
- 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.)
- Pending
Links
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
- D06N3/147—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 characterised by the isocyanates used
- D06N3/148—(cyclo)aliphatic polyisocyanates
-
- 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
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0061—Organic fillers or organic fibrous fillers, e.g. ground leather waste, wood bark, cork powder, vegetable flour; Other organic compounding ingredients; Post-treatment with organic compounds
-
- 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
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
-
- 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
- D06N3/0095—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 inversion technique; by transfer processes
- D06N3/0097—Release surface, e.g. separation sheets; Silicone papers
-
- 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
- D06N3/146—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 characterised by the macromolecular diols used
-
- 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
- D06N2209/00—Properties of the materials
- D06N2209/10—Properties of the materials having mechanical properties
- D06N2209/103—Resistant to mechanical forces, e.g. shock, impact, puncture, flexion, shear, compression, tear
-
- 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
- D06N2209/00—Properties of the materials
- D06N2209/16—Properties of the materials having other properties
- D06N2209/1607—Degradability
-
- 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
- D06N2209/00—Properties of the materials
- D06N2209/16—Properties of the materials having other properties
- D06N2209/1642—Hardnes
-
- 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
- D06N2209/00—Properties of the materials
- D06N2209/16—Properties of the materials having other properties
- D06N2209/1685—Wear resistance
-
- 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
- D06N2209/00—Properties of the materials
- D06N2209/16—Properties of the materials having other properties
- D06N2209/1692—Weather resistance
-
- 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)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
The invention provides a preparation method of deep-grained solvent-free synthetic leather, which relates to the field of synthetic leather and comprises the deep-grained solvent-free synthetic leather, wherein the deep-grained solvent-free synthetic leather comprises a surface layer, a solvent-free layer and a base cloth layer, the surface layer is formed by coating surface layer slurry on deep-grained release paper, the solvent-free layer is formed by coating solvent-free two-component resin slurry on the surface layer, and the high-density single-side long-wool base cloth layer is attached to the solvent-free layer; the introduction of polymer polyol into the resin can improve the hardness of the product, improve the bearing performance and reduce the cost; the polyurethane prepared from the polycarbonate diol has excellent weather resistance, hydrolysis resistance and wear resistance; the ether ester copolyol is used together with polyether polyol and polyester polyol, so that the compatibility of the system can be improved.
Description
Technical Field
The invention relates to the field of synthetic leather, and particularly relates to a preparation method of deep-grain solvent-free synthetic leather.
Background
In the traditional synthetic leather production process, three modes are commonly used for endowing the leather surface with grains, namely embossing, vacuum suction grains and paper grains. The process flow that wherein uses to carry out line transfer from type paper is the simplest relatively, and the use of paper line has more and more extensively now in many tanneries, but the paper line has certain limitation in practical application, mainly shows on dark line product, like products such as crocodile line, stone line, and the line effect can't reach the solid clarity that the impressed watermark came out, appears "pinhole", "rotten face", "bottom exposure" bad phenomenon very easily even in process of production etc. even, and the quality problem is serious.
At present, solvent type polyurethane is mainly adopted for manufacturing domestic synthetic leather, and comprises solvent type surface resin, solvent type surface layer resin and solvent type bonding glue, and the annual demand reaches 200 million tons/year. The resins contain a large amount of organic solvents such as dimethyl formamide, toluene, butanone and the like, and according to statistics, the organic solvents which are randomly discharged in the synthesis industry every year reach 70-100 ten thousand tons/year, so that serious resource waste and environmental pollution are caused.
Disclosure of Invention
The invention aims to provide a preparation method of deep-texture solvent-free synthetic leather, which aims to solve the technical problem.
In order to solve the technical problems, the invention adopts the following technical scheme:
the preparation method of the deep-texture solvent-free synthetic leather comprises the deep-texture solvent-free synthetic leather, wherein the deep-texture solvent-free synthetic leather comprises a surface layer, a solvent-free layer and a base cloth layer, surface layer slurry is coated on deep-texture release paper on the surface layer, solvent-free layer slurry is coated on the surface layer, and the high-density single-side long-wool base cloth layer is attached to the solvent-free layer.
Preferably, the solvent-free two-component resin slurry consists of the following components in proportion: 80-120 parts of solvent-free resin, 70-130 parts of solvent-free carboxyl, 40-60 parts of auxiliary agent and 30-50 parts of filler.
Preferably, the solvent-free carboxyl group is aliphatic or aromatic polyurethane which is formed by stepwise polymerizing liquid hexamethylene diisocyanate and liquid polyether, polyester polyol and diethylene glycol to form linear or branched prepolymer and is terminated by hydroxyl or amino.
Preferably, the auxiliary agent is any one or more of Silok355, Silok8230, Silok8450, Coatsil 7602, Tego Glide410, Tego Glide 435, Tego Wet KL 245, DC-51 or DC-57.
Preferably, the filler is any one of light calcium carbonate, carbon black, fumed silica, montmorillonite or lignin powder or a combination thereof.
Preferably, the process flow of the preparation method of the deep-texture solvent-free synthetic leather comprises the following steps:
s1, selecting single-side base cloth.
S2, preparing dry-method surface layer slurry: diluting the resin with pure DMF to 3000cps, adding 3-10 parts of color chip into 100 parts of diluted resin, stirring and dispersing uniformly for later use.
S3, preparing slurry of a solvent-free layer: adding a little assistant and filler into the solvent-free hydroxyl component, and uniformly mixing the solvent-free hydroxyl component and the hydroxyl component according to the ratio of 100: 53.
S4, coating a fabric on the deep-pattern release paper in a scraping mode, drying at 130 ℃, coating an intermediate layer material on the deep-pattern release paper in a scraping mode, drying at 130 ℃, coating a solvent-free layer slurry on the deep-pattern release paper in a scraping mode, drying to be semi-dry at 110 ℃, attaching the semi-dry base fabric with high-density single-side long wool, drying for 4-5min at 130 ℃, cooling and rolling to obtain a veneering semi-finished product.
And S5, printing patterns on the surface and processing hand feeling.
The invention has the beneficial effects that:
according to the invention, through using the solvent-free two-component resin slurry, the paper pattern breaks the limitation in the actual application, and is mainly reflected in solving the problem of the quality of deep-pattern products such as crocodile patterns, stone patterns and the like, the pattern effect cannot reach the three-dimensional definition of embossed patterns, and even the bad phenomena such as 'pinholes', 'rotten surfaces', 'bottom exposure' and the like are easily generated in the production process; in addition, the introduction of polymer polyol into the resin can improve the hardness of the product, improve the bearing performance and reduce the cost; the polyurethane prepared from the polycarbonate diol has excellent weather resistance, hydrolysis resistance and wear resistance; the ether ester copolyol is used together with polyether polyol and polyester polyol, so that the compatibility of the system can be improved.
Detailed Description
The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.
Example 1
The solvent-free two-component resin slurry consists of the following components in proportion: 80-120 parts of solvent-free resin, 70-130 parts of diethylene glycol, liquid hexamethylene diisocyanate and liquid polyether prepolymer, 40-60 Silok8230, 30-55 parts of montmorillonite and lignin powder mixture.
The preparation method of the solvent-free two-component resin slurry comprises the following steps: 80 parts of solvent-free resin, 70 parts of diethylene glycol, liquid hexamethylene diisocyanate and liquid polyether prepolymer, 823040 parts of Silok, and 30 parts of a mixture of montmorillonite and lignin powder are uniformly mixed to prepare the surface layer slurry with the viscosity of 2500mPa.s (at the temperature of 25 ℃).
The process flow of the preparation method of the deep-grain solvent-free synthetic leather is characterized in that: the method comprises the following steps:
s1, selecting single-side base cloth.
S2, preparing dry-method surface layer slurry: diluting the resin with pure DMF to 3000cps, adding 3-10 parts of color chip into 100 parts of diluted resin, stirring and dispersing uniformly for later use.
S3, preparing slurry of a solvent-free layer: adding a little assistant and filler into the solvent-free hydroxyl component, and uniformly mixing the solvent-free hydroxyl component and the hydroxyl component according to the ratio of 100: 53.
S4, coating a fabric on the deep-pattern release paper in a scraping mode, drying at 130 ℃, coating an intermediate layer material on the deep-pattern release paper in a scraping mode, drying at 130 ℃, coating a solvent-free layer slurry on the deep-pattern release paper in a scraping mode, drying to be semi-dry at 110 ℃, attaching the semi-dry base fabric with high-density single-side long wool, drying for 4-5min at 130 ℃, cooling and rolling to obtain a veneering semi-finished product.
And S5, printing patterns on the surface and processing hand feeling.
Example 2
The solvent-free two-component resin slurry consists of the following components in proportion: 80-120 parts of solvent-free resin, 70-130 parts of diethylene glycol, liquid hexamethylene diisocyanate and liquid polyether prepolymer, 40-60 parts of Silok8230, 30-55 parts of montmorillonite and lignin powder mixture.
The preparation method of the solvent-free two-component resin slurry comprises the following steps: 90 parts of solvent-free resin, 85 parts of diethylene glycol, liquid hexamethylene diisocyanate and liquid polyether prepolymer, 85 parts of Silok823045 parts of montmorillonite and 55 parts of lignin powder mixture are uniformly mixed to prepare the surface layer slurry with the viscosity of 2500mPa.s (at the temperature of 25 ℃).
The process flow of the preparation method of the deep-grain solvent-free synthetic leather is characterized in that: the method comprises the following steps:
s1, selecting single-side base cloth.
S2, preparing dry-method surface layer slurry: diluting the resin with pure DMF to 3000cps, adding 3-10 parts of color chip into 100 parts of diluted resin, stirring and dispersing uniformly for later use.
S3, preparing slurry of a solvent-free layer: adding a little assistant and filler into the solvent-free hydroxyl component, and uniformly mixing the solvent-free hydroxyl component and the hydroxyl component according to the ratio of 100: 53.
S4, coating a fabric on the deep-pattern release paper in a scraping mode, drying at 130 ℃, coating an intermediate layer material on the deep-pattern release paper in a scraping mode, drying at 130 ℃, coating a solvent-free layer slurry on the deep-pattern release paper in a scraping mode, drying to be semi-dry at 110 ℃, attaching the semi-dry base fabric with high-density single-side long wool, drying for 4-5min at 130 ℃, cooling and rolling to obtain a veneering semi-finished product.
And S5, printing patterns on the surface and processing hand feeling.
Example 3
The solvent-free two-component resin slurry consists of the following components in proportion: 80-120 parts of solvent-free resin, 70-130 parts of diethylene glycol, liquid hexamethylene diisocyanate and liquid polyether prepolymer, 40-60 parts of Silok8230, 30-55 parts of montmorillonite and lignin powder mixture.
The preparation method of the solvent-free two-component resin slurry comprises the following steps: 100 parts of solvent-free resin, 100 parts of diethylene glycol, 100 parts of liquid hexamethylene diisocyanate and liquid polyether prepolymer, 823053 parts of Silok, and 53 parts of montmorillonite and lignin powder mixture are uniformly mixed to prepare the surface layer slurry with the viscosity of 2500mPa.s (at the temperature of 25 ℃).
The process flow of the preparation method of the deep-grain solvent-free synthetic leather is characterized in that: the method comprises the following steps:
s1, selecting single-side base cloth.
S2, preparing dry-method surface layer slurry: diluting the resin with pure DMF to 3000cps, adding 3-10 parts of color chip into 100 parts of diluted resin, stirring and dispersing uniformly for later use.
S3, preparing slurry of a solvent-free layer: adding a little assistant and filler into the solvent-free hydroxyl component, and uniformly mixing the solvent-free hydroxyl component and the hydroxyl component according to the ratio of 100: 53.
S4, coating a fabric on the deep-pattern release paper in a scraping mode, drying at 130 ℃, coating an intermediate layer material on the deep-pattern release paper in a scraping mode, drying at 130 ℃, coating a solvent-free layer slurry on the deep-pattern release paper in a scraping mode, drying to be semi-dry at 110 ℃, attaching the semi-dry base fabric with high-density single-side long wool, drying for 4-5min at 130 ℃, cooling and rolling to obtain a veneering semi-finished product.
And S5, printing patterns on the surface and processing hand feeling.
Example 4
The solvent-free two-component resin slurry consists of the following components in proportion: 80-120 parts of solvent-free resin, 70-130 parts of diethylene glycol, liquid hexamethylene diisocyanate and liquid polyether prepolymer, 40-60 parts of Silok8230, 30-55 parts of montmorillonite and lignin powder mixture.
The preparation method of the solvent-free two-component resin slurry comprises the following steps: 110 parts of solvent-free resin, 115 parts of diethylene glycol, liquid hexamethylene diisocyanate and liquid polyether prepolymer, 823055 parts of Silok, and 45 parts of mixture of montmorillonite and lignin powder are uniformly mixed to prepare the surface layer slurry with the viscosity of 2500mPa.s (at the temperature of 25 ℃).
The process flow of the preparation method of the deep-grain solvent-free synthetic leather is characterized in that: the method comprises the following steps:
s1, selecting single-side base cloth.
S2, preparing dry-method surface layer slurry: diluting the resin with pure DMF to 3000cps, adding 3-10 parts of color chip into 100 parts of diluted resin, stirring and dispersing uniformly for later use.
S3, preparing slurry of a solvent-free layer: adding a little assistant and filler into the solvent-free hydroxyl component, and uniformly mixing the solvent-free hydroxyl component and the hydroxyl component according to the ratio of 100: 53.
S4, coating a fabric on the deep-pattern release paper in a scraping mode, drying at 130 ℃, coating an intermediate layer material on the deep-pattern release paper in a scraping mode, drying at 130 ℃, coating a solvent-free layer slurry on the deep-pattern release paper in a scraping mode, drying to be semi-dry at 110 ℃, attaching the semi-dry base fabric with high-density single-side long wool, drying for 4-5min at 130 ℃, cooling and rolling to obtain a veneering semi-finished product.
And S5, printing patterns on the surface and processing hand feeling.
Example 5
The solvent-free two-component resin slurry consists of the following components in proportion: 80-120 parts of solvent-free resin, 70-130 parts of diethylene glycol, liquid hexamethylene diisocyanate and liquid polyether prepolymer, 40-60 parts of Silok8230, 30-55 parts of montmorillonite and lignin powder mixture.
The preparation method of the solvent-free two-component resin slurry comprises the following steps: 120 parts of solvent-free resin, 130 parts of diethylene glycol, liquid hexamethylene diisocyanate and liquid polyether prepolymer, 30 parts of Silok823060 parts of montmorillonite and lignin powder mixture are uniformly mixed to prepare the surface layer slurry with the viscosity of 2500mPa.s (at the temperature of 25 ℃).
The process flow of the preparation method of the deep-grain solvent-free synthetic leather is characterized in that: the method comprises the following steps:
s1, selecting single-side base cloth.
S2, preparing dry-method surface layer slurry: diluting the resin with pure DMF to 3000cps, adding 3-10 parts of color chip into 100 parts of diluted resin, stirring and dispersing uniformly for later use.
S3, preparing slurry of a solvent-free layer: adding a little assistant and filler into the solvent-free hydroxyl component, and uniformly mixing the solvent-free hydroxyl component and the hydroxyl component according to the ratio of 100: 53.
S4, coating a fabric on the deep-pattern release paper in a scraping mode, drying at 130 ℃, coating an intermediate layer material on the deep-pattern release paper in a scraping mode, drying at 130 ℃, coating a solvent-free layer slurry on the deep-pattern release paper in a scraping mode, drying to be semi-dry at 110 ℃, attaching the semi-dry base fabric with high-density single-side long wool, drying for 4-5min at 130 ℃, cooling and rolling to obtain a veneering semi-finished product.
And S5, printing patterns on the surface and processing hand feeling.
The experimental results obtained are shown in table one:
and (III) comparing the three-dimensional effects, the qualities and the limitations of the deep texture solvent-free synthetic leather prepared in the 5 embodiments to obtain the deep texture solvent-free synthetic leather in the embodiment 3, wherein the deep texture solvent-free synthetic leather is suitable for various textures and has better three-dimensional effect. Compared with the deep-texture solvent-free synthetic leather prepared in other embodiments, the embodiment 3 has wider application prospect.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A preparation method of deep-pattern solvent-free synthetic leather is characterized by comprising the following steps: the deep texture solvent-free synthetic leather comprises a surface layer, a solvent-free layer and a base cloth layer, wherein the surface layer is formed by coating surface layer slurry on deep texture release paper, the solvent-free layer is formed by coating solvent-free two-component resin slurry on the surface layer, and the high-density single-side long-wool base cloth layer is attached to the solvent-free layer.
2. The method for preparing the deep-grained solvent-free synthetic leather according to claim 1, wherein the method comprises the following steps: the solvent-free two-component resin slurry comprises the following components in parts by weight: 80-120 parts of solvent-free resin, 70-130 parts of solvent-free carboxyl, 40-60 parts of auxiliary agent and 30-50 parts of filler.
3. The method for preparing the deep-grained solvent-free synthetic leather according to claim 1, wherein the method comprises the following steps: the solvent-free carboxyl is aliphatic or aromatic polyurethane which is formed by gradually polymerizing liquid hexamethylene diisocyanate and liquid polyether, polyester polyol and diethylene glycol to form linear or branched prepolymer and is terminated by hydroxyl or amino.
4. The method for preparing the deep-grained solvent-free synthetic leather according to claim 1, wherein the method comprises the following steps: the auxiliary agent is any one or a plurality of compounds of Silok355, Silok8230, Silok8450, Coatsil 7602, Tego Glide410, Tego Glide 435, Tego Wet KL 245, DC-51 or DC-57.
5. The method for preparing the deep-grained solvent-free synthetic leather according to claim 1, wherein the method comprises the following steps: the filler is any one or combination of light calcium carbonate, carbon black, gas-phase silica, montmorillonite or lignin powder.
6. The technological process of the preparation method of the deep texture solvent-free synthetic leather according to claim 1, which is characterized in that: the method comprises the following steps:
s1, selecting single-side base cloth;
s2, preparing dry-method surface layer slurry: diluting the resin with pure DMF to 3000cps, adding 3-10 parts of color chips into 100 parts of diluted resin, stirring and dispersing uniformly for later use;
s3, preparing slurry of a solvent-free layer: adding a little assistant and filler into the solvent-free hydroxyl component, and uniformly mixing the solvent-free hydroxyl component and the hydroxyl component according to the ratio of 100: 53;
s4, coating a fabric on the deep-pattern release paper in a scraping manner, drying at 130 ℃, coating an intermediate layer material on the deep-pattern release paper in a scraping manner, drying at 130 ℃, coating a solvent-free layer slurry on the deep-pattern release paper in a scraping manner, drying to be semi-dry at 110 ℃, attaching the semi-dry base fabric with high-density single-side long wool, drying for 4-5min at 130 ℃, cooling and rolling to obtain a veneering semi-finished product;
and S5, printing patterns on the surface and processing hand feeling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011135583.0A CN112376290A (en) | 2020-10-22 | 2020-10-22 | Preparation method of deep-texture solvent-free synthetic leather |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011135583.0A CN112376290A (en) | 2020-10-22 | 2020-10-22 | Preparation method of deep-texture solvent-free synthetic leather |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112376290A true CN112376290A (en) | 2021-02-19 |
Family
ID=74580537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011135583.0A Pending CN112376290A (en) | 2020-10-22 | 2020-10-22 | Preparation method of deep-texture solvent-free synthetic leather |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112376290A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113914105A (en) * | 2021-10-27 | 2022-01-11 | 上海唯革思生物科技有限公司 | Vinasse extract leather and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1904202A (en) * | 2005-07-27 | 2007-01-31 | 三芳化学工业股份有限公司 | High wear resistant brilliant artificial leather and its manufacturing method |
| CN101349013A (en) * | 2008-08-29 | 2009-01-21 | 黄成源 | Method for making ecological type artificial leather or similar leather object and automatic assembly line thereof |
| CN104480726A (en) * | 2014-12-02 | 2015-04-01 | 福建华阳超纤有限公司 | Manufacturing method of no-solvent automobile microfiber leather |
| CN105401460A (en) * | 2015-08-26 | 2016-03-16 | 四川大学 | Solvent-free synthetic leather and manufacturing method thereof |
| CN106366274A (en) * | 2015-07-22 | 2017-02-01 | 江苏国信合成革有限公司 | Low-VOC polyurethane synthetic leather and production method thereof |
-
2020
- 2020-10-22 CN CN202011135583.0A patent/CN112376290A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1904202A (en) * | 2005-07-27 | 2007-01-31 | 三芳化学工业股份有限公司 | High wear resistant brilliant artificial leather and its manufacturing method |
| CN101349013A (en) * | 2008-08-29 | 2009-01-21 | 黄成源 | Method for making ecological type artificial leather or similar leather object and automatic assembly line thereof |
| CN104480726A (en) * | 2014-12-02 | 2015-04-01 | 福建华阳超纤有限公司 | Manufacturing method of no-solvent automobile microfiber leather |
| CN106366274A (en) * | 2015-07-22 | 2017-02-01 | 江苏国信合成革有限公司 | Low-VOC polyurethane synthetic leather and production method thereof |
| CN105401460A (en) * | 2015-08-26 | 2016-03-16 | 四川大学 | Solvent-free synthetic leather and manufacturing method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113914105A (en) * | 2021-10-27 | 2022-01-11 | 上海唯革思生物科技有限公司 | Vinasse extract leather and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101805438B (en) | Preparation method and applications of cationic waterborne polyurethane surface sizing agent | |
| CN105401460A (en) | Solvent-free synthetic leather and manufacturing method thereof | |
| CN106519177A (en) | Method for manufacturing embossed solvent-free polyurethane synthetic leather | |
| CN110499094B (en) | Graphene-modified waterborne polyurethane anticorrosive paint and preparation method thereof | |
| CN101607384A (en) | The preparation method of UEA116 super-precision grinding grinding belt | |
| CN102532462A (en) | Easily-dyed aliphatic polyurethane resin and preparation method thereof | |
| CN102677480B (en) | Production method of novel artificial leather | |
| CN112376290A (en) | Preparation method of deep-texture solvent-free synthetic leather | |
| CN112760995B (en) | Water-based matte oil-stain-resistant synthetic leather and preparation method thereof | |
| CN114108335A (en) | Water-based dry-adhered double-layer leather with transfer film and preparation method thereof | |
| CN112760992B (en) | Wear-resistant basketball leather and preparation method thereof | |
| CN107325669A (en) | Ultra-thin compound sliver of a kind of ultra-soft and preparation method thereof | |
| CN111619257A (en) | Pyrograph film and production process thereof | |
| CN113881008A (en) | Solvent type polyurethane resin for suede microfiber dyeing and preparation method thereof | |
| CN110452352B (en) | Waterborne polyurethane resin and preparation method thereof | |
| CN101302395A (en) | Water-soluble polyurethane surface enamel | |
| CN111154390A (en) | Pavement coating and method of forming same | |
| CN114752252B (en) | PET (polyethylene terephthalate) surface printing water-based matte oil and preparation method thereof | |
| CN114507988A (en) | Preparation method of waterborne polyurethane synthetic leather for electronic product back plate | |
| CN115160850A (en) | Water-based ink for decorative paper and preparation method thereof | |
| CN115160908A (en) | Solvent-free UV (ultraviolet) matte coating and preparation method thereof | |
| CN113459620A (en) | Floor structure using UV digital printing film and production process thereof | |
| CN112663397A (en) | Writing paper and preparation process thereof | |
| CN110670376A (en) | Solvent-free three-proofing synthetic leather and manufacturing method thereof | |
| CN112553951A (en) | Universal synthetic paper and manufacturing method thereof |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210219 |
|
| RJ01 | Rejection of invention patent application after publication |