Flame-retardant environment-friendly synthetic leather

Abstract

The utility model relates to the technical field of synthetic leather, and discloses flame-retardant environment-friendly synthetic leather, which comprises synthetic leather base cloth, a water-based flame retardant coating, a solvent-free polyurethane layer, a polyurethane middle layer and a polyurethane surface layer, the solvent-free polyurethane layer is attached to the upper end face of the water-based flame retardant coating, the polyurethane middle layer is smeared on the upper end face of the solvent-free polyurethane layer, and the polyurethane surface layer is arranged on the upper end face of the polyurethane middle layer in a blade coating mode. According to the flame-retardant environment-friendly synthetic leather, the addition of organic solvents is greatly reduced from the raw materials and the formula, so that the harm of the organic solvents to the health of workers in the production process is reduced, almost half of human resources are saved, and the used flame retardant is also an environment-friendly halogen-free flame retardant, so that the harm to human bodies is smaller, and the flame-retardant effect is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of synthetic leather, concretely to a kind of flame-retardant environment-friendly synthetic leather. BACKGROUND

[0002] Synthetic leather is a kind of artificial leather, also known as imitation leather or artificial leather, its front and back are very similar to leather, and have certain air permeability, more close to natural leather than ordinary artificial leather, synthetic leather is widely used to make various products, such as shoes, bags, clothes, furniture, etc., due to its excellent air permeability and wear resistance, as well as diversified appearance and texture, synthetic leather has been widely used in fashion industry.

[0003] However, most of the existing similar synthetic leather can only reduce the burning speed and the burning range when it burns, and there is no way to achieve complete flame retardation, and the smell produced during combustion is strong, too many additives also cause significant harm to the human body, in order to achieve the effect of flame retardation, many businessmen will add excessive flame retardant during product production, which leads to a substantial increase in cost, and it is likely to lose the flame retardation effect during washing, therefore, a kind of flame-retardant environment-friendly synthetic leather is proposed. SUMMARY

[0004] TECHNICAL PROBLEM

[0005] In view of the deficiencies in the prior art, the utility model provides a kind of flame-retardant environment-friendly synthetic leather, the addition of organic solvent is greatly reduced from raw material and formula, thereby reducing the harm of organic solvent to worker health in production process, the process of production is also less than traditional process one, save about half of human resources, the flame retardant used is also environment-friendly halogen-free flame retardant, less harmful to human body, better flame-retardant effect.

[0006] TECHNICAL SCHEME

[0007] To achieve the above purpose, the utility model provides the following technical scheme:

[0008] A kind of flame-retardant environment-friendly synthetic leather, including synthetic leather base cloth, water-based flame retardant coating, solvent-free polyurethane layer, polyurethane middle layer and polyurethane surface layer, the water-based flame retardant coating is scraped on the upper end surface of synthetic leather base cloth, the solvent-free polyurethane layer is attached to the upper end surface of water-based flame retardant coating, the polyurethane middle layer is daubed on the upper end surface of solvent-free polyurethane layer, and the polyurethane surface layer is scraped on the upper end surface of polyurethane middle layer.

[0009] As a preferred technical scheme of the utility model, the material of the synthetic leather base cloth is imitation cowhide cloth material, and the thickness of the synthetic leather base cloth is 1.00mm.

[0010] As a preferred technical scheme of the utility model, the material of the water-based flame retardant coating is a water-based flame retardant cloth treatment agent, and the thickness of the water-based flame retardant coating is 0.05 mm.

[0011] As a preferred technical scheme of the utility model, the material of the water-based flame retardant coating is a water-based flame retardant cloth treatment agent, and the thickness of the water-based flame retardant coating is 0.05 mm.

[0012] As a preferred technical scheme of the utility model, the material of the water-based flame retardant coating is a water-based flame retardant cloth treatment agent, and the thickness of the water-based flame retardant coating is 0.05 mm.

[0013] As a preferred technical scheme of the utility model, the material of the water-based flame retardant coating is a water-based flame retardant cloth treatment agent, and the thickness of the water-based flame retardant coating is 0.05 mm.

[0014] Beneficial effects

[0015] Compared with the prior art, the utility model provides a kind of flame-retardant environment-friendly synthetic leather, with following beneficial effects:

[0016] The one kind of flame-retardant environment-friendly synthetic leather, through water-based flame retardant coating, solventless polyurethane layer, polyurethane middle layer and polyurethane surface layer, so that flame-retardant environment-friendly synthetic leather still maintains good flame-retardant effect after water washing, and after being ignited by burning material, a layer of black flame-retardant material is formed on surface rapidly, so that it will not spread combustion and has immediate fire extinguishing effect, and will not smolder and produce toxic gas. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is the front view cross-sectional structure schematic diagram of the utility model;

[0018] Fig. 2 It is the front view cross-sectional structure schematic diagram of the utility model;

[0019] Fig. 3 It is the top view cross-sectional structure schematic diagram of the utility model.

[0020] In the drawing: 1, synthetic leather base cloth;2, water-based flame retardant coating;3, solventless polyurethane layer;4, polyurethane middle layer;5, polyurethane surface layer. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0022] In the description of the utility model, it needs to understand that the orientation or position relation indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relation shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.

[0023] In the embodiment, referring to Figs. 1-3 The utility model provides a technical scheme: including synthetic leather base cloth 1, water based flame retardant coating 2, no solvent polyurethane layer 3, polyurethane middle layer 4 and polyurethane surface layer 5, water based flame retardant coating 2 is scraped to the upper end surface of synthetic leather base cloth 1, no solvent polyurethane layer 3 is attached to the upper end surface of water based flame retardant coating 2, polyurethane middle layer 4 is daubed to the upper end surface of no solvent polyurethane layer 3, and polyurethane surface layer 5 is scraped to the upper end surface of polyurethane middle layer 4;

[0024] The material of synthetic leather base cloth 1 is imitated cow suede cloth material, and the thickness of synthetic leather base cloth 1 is 1.00mm;

[0025] In use, the material of synthetic leather base cloth 1 can select the existing 0.8mm thickness dry method imitated cotton velvet or 1.0mm dry method cow suede terylene cotton blended synthetic leather base cloth, and the state is solid.

[0026] Further, the material of water based flame retardant coating 2 is water based flame retardant cloth treating agent, and the thickness of water based flame retardant coating 2 is 0.05mm;

[0027] In use, 100 portions of SP-8504 are added to the inside of water based flame retardant coating 2, and the solid content of SP-8504 is 40% and 5 portions of distilled water, and in addition, the state is liquid.

[0028] Further, the material of no solvent polyurethane layer 3 is no solvent polyurethane resin, and the thickness of no solvent polyurethane layer 3 is between 0.25mm-0.3.mm;

[0029] In use, 100 portions of HX-8005A, 48~55 portions of HX-8005BL, 3 portions of MEK, 0.06 portions of HX-302, 0.15 portions of HX-512, 0.18 portions of HX-606 and 40 portions of SW-57 are added to the inside of no solvent polyurethane layer 3, and the state is liquid, and furthermore, synthetic leather flame retardant is added to the inside of no solvent polyurethane layer 3, which contains 40 portions of SW-57.

[0030] Further, the material of the polyurethane middle layer 4 is polyurethane middle layer material resin, and the thickness of the polyurethane middle layer 4 is 0.03mm;

[0031] In use, 100 parts of PY-3052, 75 parts of DMFa and 6-15 parts of polyurethane resin pigments are added to the inside of the polyurethane middle layer 4, and the state is liquid.

[0032] Further, the material of the polyurethane surface layer 5 is polyurethane surface layer material resin, and the thickness of the polyurethane middle layer 4 is 0.03mm;

[0033] In use, 100 parts of GS-3035, 75 parts of DMFa and 6-15 parts of polyurethane resin pigments are added to the inside of the polyurethane surface layer 5, and the state is liquid.

[0034] Working principle:

[0035] Step one, the upper surface of the synthetic leather base cloth 1 is scraped and coated with the prepared water-based flame retardant coating 2, and placed in a drying oven at 120°C-140°C for drying, and the thickness of the dried water-based flame retardant coating 2 is about 0.05mm;

[0036] Step two, the polyurethane surface layer 5 with a thickness of 0.12-0.16mm is coated on the existing release paper in the outside world, and then placed in a drying oven at 110-130°C for complete drying, and the thickness of the dried polyurethane surface layer 5 is about 0.03mm, then the polyurethane middle layer 4 with a thickness of 0.12-0.16mm is coated on the lower surface of the polyurethane surface layer 5, and placed in a drying oven at 110-130°C for complete drying, and the thickness of the dried polyurethane middle layer 4 is about 0.03mm, then the solvent-free polyurethane layer 3 with a thickness of 0.2-0.4mm of solvent-free polyurethane resin is used to dry in a drying oven at 90-140°C to a semi-dry state, and is attached to the upper surface of the water-based flame retardant coating 2 treated in step one, and finally a leather forming oven at 130-140°C is used for baking, and the thickness of the baked solvent-free polyurethane layer 3 is about 0.25-0.3mm, and then the finished synthetic leather is peeled off from the release paper and wound.

[0037] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly flame-retardant synthetic leather, comprising a synthetic leather base cloth (1), a water-based flame-retardant coating (2), a solvent-free polyurethane layer (3), a polyurethane middle layer (4), and a polyurethane surface layer (5), characterized in that, The water-based flame retardant coating (2) is scraped on the upper end surface of the synthetic leather base cloth (1), the solvent-free polyurethane layer (3) is attached to the upper end surface of the water-based flame retardant coating (2), the polyurethane middle layer (4) is applied to the upper end surface of the solvent-free polyurethane layer (3), and the polyurethane surface layer (5) is scraped on the upper end surface of the polyurethane middle layer (4).

2. The flame-retardant environment-friendly synthetic leather according to claim 1, characterized in that: The material of the synthetic leather base cloth (1) is imitation cow suede cloth material, and the thickness of the synthetic leather base cloth (1) is 1.00 mm. 3.The flame-retardant environment-friendly synthetic leather according to claim 1, characterized in that: The material of the water-based flame retardant coating (2) is a water-based flame retardant cloth treatment agent, and the thickness of the water-based flame retardant coating (2) is 0.05 mm.

4. The flame-retardant environment-friendly synthetic leather according to claim 1, characterized in that: The material of the solvent-free polyurethane layer (3) is a solvent-free polyurethane resin, and the thickness of the solvent-free polyurethane layer (3) is between 0.25 mm and 0.3 mm.

5. The flame-retardant environment-friendly synthetic leather according to claim 1, characterized in that: The material of the polyurethane middle layer (4) is a polyurethane middle layer material resin, and the thickness of the polyurethane middle layer (4) is 0.03 mm.

6. The flame-retardant environment-friendly synthetic leather according to claim 1, characterized in that: The material of the polyurethane surface layer (5) is a polyurethane surface layer material resin, and the thickness of the polyurethane middle layer (4) is 0.03 mm.

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