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
  • D06N3/145—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 two or more layers of polyurethanes
• • 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
  • D06N3/04—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 by reactions only involving carbon-to-carbon unsaturated bonds
  • D06N3/06—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 by reactions only involving carbon-to-carbon unsaturated bonds with polyvinylchloride or its copolymerisation products
• • 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
  • D06N3/142—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 mixture of polyurethanes with other resins in the same layer
  • D06N3/144—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 mixture of polyurethanes with other resins in the same layer with polyurethane and polymerisation products, e.g. acrylics, PVC

Definitions

• This invention is related to a kind of artificial leather that is particularly produced to be used in furniture, shoes, bag, clothing and accessories sector and the production method developed for the said kind of artificial leather; with the usage of this production method developed through this invention, the artificial leather obtained through using the intermediate product (layer) acquired by churning water based polyurethane and/or acrylic, latex, dye and other auxiliary chemicals in a newly developed foam machinery with the help of air in order to give them a porous structure exhibits very similar characteristics to natural leather thanks to its porous (spongy) pattern and corrugated surface view.
• This production technique consists of two basic steps.
• semi finished product (intermediate product) is obtained by applying polyurethane on the textile texture (woven, knitted, nonwowen, etc.) for creating porous structure to be used (as the details will be provided in 1.1) as the texture for in the second step.
• the semi finished product (intermediate product) that is obtained by applying porous polyurethane onto the textile texture is exposed the coating process (as details will be provided in 1.2)
• this carrier paper with chemicals comes to the 3 rd coating blade (2.7) and is once again coated with polyurethane, solvent and other auxiliary chemicals within the required thickness and weight (by grams) through the 3 rd coating blade (2.7).
• the semi finished texture ' product (intermediate product) obtained through the coagulated production process applied to the paper with chemicals is adhered in the texture unit (2.8) and dried in the 3 rd furnace (2.9).
• the product is obtained through separation of the texture and the patterned carrier paper at the exit of the cooling cylinders (2.10) of the machinery. Nevertheless, this production method causes contamination of both the air and the soil with 90 % solvent, DMF, in the coating polyurethane, thus damages the ecological system.
• Patterned carrier paper in the coating machinery is coated with polyurethane and/or polyvinyl chloride, solvent and other auxiliary chemicals through the 1 st coating blade (3.3) within the required thickness and weight (by grams). Then, it is dried in the 1 st furnace (3.4).
• This carrier paper with chemicals after the drying process, comes to the 2 nd coating blade (3.5) and is once again coated with polyvinyl chloride and other auxiliary chemicals within the required thickness and weight (by grams).
• this carrier paper with chemicals comes to the 3 rd coating blade (3.7) and is once again coated with polyvinyl chloride and other auxiliary chemicals within the required thickness and weight (by grams) through the 3 rd coating blade (2.7).
• textile texture (woven, knitted, nonwoven, etc.) is adhered to the paper with chemicals in the texture unit (3.8) and dried in the 3 rd furnace (3.9).
• the product is obtained through separation of the texture and the patterned carrier paper at the exit of the machinery.
• the number of coating blades at this stage may be increased or decreased, as requested.
• the porous (spongy) structure is ensured with the use of a chemical, which is called azodicarbonamide, added into the PVC (polyvinyl chloride).
• azodicarbonamide a chemical, which is called azodicarbonamide
• PVC polyvinyl chloride
• the artificial leather which is produced using this production method, causes contamination of the air through evaporation of the azodicarbonamid during the drying process, as well as contamination of the ecological system by the dangerous components contained in PVC (polyvinyl chloride), plasticizers and other auxiliary chemicals.
• PVC polyvinyl chloride
• the artificial leather developed by this invention is produced by using the intermediate product
• this method gains the artificial leather produced by the said method with the characteristics having natural leather texture and outlook that is different from the known artificial leathers.
• FIGURE 1 Production Process for the Polyurethane Semi Finished Product Required for Creation of a Porous (Spongy) Layer (Coagulation Production Process) (the Known Technique)
• FIGURE 2 Production Process of the Semi Finished Product Produced with Porous (Spongy) Layer (Coagulated Product) through Polyurethane Coating (the Known Technique)
• FIGURE 3 Production Process for the Products with Porous (Spongy) Layer by Coating Textile Textures with PU (polyurethane) and PVC (polyvinyl chloride) (the
• FIGURE 4 Production of Semi Finished Product (Intermediate Product) Obtained Using Water Based Chemicals Churned with Air
• FIGURE 5 Polyurethane Coating of the Semi Finished Product (Intermediate Product) with Semi Finished Porous Layer Obtained Using Water Based Chemicals Churned with Air
• FIGURE 6 Cross Section of the Foam Machine Definition of the Elements (Features/ Components/Parts) on the Figures
• the mixture which is prepared with water based polyurethane and/or acrylic, latex, dye and other auxiliary chemicals put into the mixing chamber (6) within the unit, is taken into the foam machine (11) through internal suction pump (7). Air is pumped to this mixture within the foam machine (11), in required amounts, from the internal air pump (8), and it is churned through mixing by the mixer (9). This churned mixture is, then, sent to the dipping tank (4.3) or Semi Finished Product Production Scraping Blades (4.5 or 4.7), whichever is preferred, through the drain pump (10). After the churned mixture is used for dipping or coating with at least one blade onto the textile texture (woven, knitted, nonwoven, etc.) and dried, we acquire the water based semi finished product (intermediate product) (4.10) required for coating procedure.
• cooling cylinders (4.9) start working to cool the water based semi finished product (4.10) coming out of the 2 nd furnace (4.8) hot, and prevent potential problems in hot winding.
• the patterned carrier paper (5.1) is coated with water or solvent based polyurethane and other auxiliary chemicals in preferred thickness and weight in grams through the polyurethane coating production 1 st coating blade (5.3), and the polyurethane coating production is dried in the 1 st furnace (5.4).
• the carrier paper with chemicals leaves the polyurethane coating production 2 nd furnace (5.6) after completion of the drying procedure, comes to the polyurethane coating production 3 rd furnace (5.7), and is coated with water or solvent based polyurethane and other auxiliary chemicals in preferred thickness and weight in grams.
• This coating procedure is done with at least one blade.
• the drying procedures can also be realized in one or more furnaces according to the number of blades used.
• the patterned carrier paper (5.1) is adhered through the texture unit (5.8) to the semi finished product (intermediate product) (4.10) with water based porous layer obtained through production with water based chemicals, and dried in polyurethane coating production 3 rd furnace (5.9).

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Dispersion Chemistry (AREA)
• Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
• Treatment And Processing Of Natural Fur Or Leather (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=41720637

Family Applications (1)

Country Status (2)

Cited By (3)

Citations (5)

• 2008
  • 2008-10-17 TR TR2008/07824A patent/TR200807824A1/tr unknown
• 2009
  • 2009-10-05 WO PCT/TR2009/000123 patent/WO2010044761A1/en active Application Filing
  • 2009-10-05 TR TR2011/03546T patent/TR201103546T2/tr unknown

Patent Citations (5)

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