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A method of modifying PP decorative film by plasma

A technology of plasma and low-temperature plasma, which is applied to the device for coating liquid on the surface, pretreatment of the surface, coating, etc., can solve the problems of compatibility, insufficient gloss and fullness, color difference, texture and luster, etc., and achieve improvement Integrity, good gloss, enhanced wettability

Active Publication Date: 2021-04-20
RES INST OF FORESTRY NEW TECH CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in fact, for some wood products, such as wooden door casings and other special-shaped surfaces, PP decorative films are used for surface decoration, and door panels are usually painted with decorative thin wood veneers, so the surface effect of paint-free PP decorative films is very good. It is difficult to match the paint film effect of the door leaf panel, and it is very easy to cause problems such as color difference or texture color matching between the surface of the door line PP decorative film and the door leaf panel, and even if the PP decorative film is used to decorate a large area of ​​the wood product plane, There are also problems such as insufficient gloss and fullness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A method using plasma modified PP decorative film facing, comprising the steps of:

[0046] Step 1: Use black walnut decorative veneer for the surface of the solid wood composite door leaf, and then apply primer (two coats) and environmentally friendly colored topcoat (one coat) to the surface of the veneered door leaf;

[0047] Step 2: Use glow discharge low-temperature plasma treatment equipment to conduct the first plasma treatment on the surface of the PP decorative film with black walnut texture, the treatment time is 6 minutes, and the treatment height is 3 cm; obtain a plasma-modified PP decorative film;

[0048] Step 3: Apply glue to the surface of the solid wood composite door cover line, and then cover it with plasma-modified PP decorative film; after the glue is dry, use water-based spraying equipment to spray the first coat on the plasma-modified PP decorative film Primer, viscosity 50s (coat 4 cups), coating amount is 120g / m 2 , and then use cold infrared ...

Embodiment 2

[0053] A method using plasma modified PP decorative film facing, comprising the steps of:

[0054] Step 1: Apply primer and environmentally friendly colored topcoat to the surface of the cabinet panel with MDF as the base material to complete the overall white paint finish effect of the cabinet panel;

[0055] Step 2: Use dielectric barrier low-temperature plasma equipment to conduct the first plasma treatment on the surface of the PP decorative film, with a processing speed of 4m / min and a discharge power of 2kW; obtain a plasma-modified PP decorative film;

[0056] Step 3: Use the plasma-modified PP decorative film to carry out hot-melt adhesive gluing and edge-sealing treatment on the side of the cabinet, and then use the side roller coater to roll-coat the plasma-treated PP decorative film for the first time after the glue is dry Primer, viscosity 50s (coat 4 cups), coating amount 15g / m 2 ; Use double-lamp UV curing equipment to cure and dry for 5 seconds; use glow discha...

Embodiment 3

[0061] A method using plasma modified PP decorative film facing, comprising the steps of:

[0062] Step 1: Use dielectric barrier low-temperature plasma equipment to modify the surface of the PP decorative film, with a processing speed of 3m / min and a discharge power of 1kW, to obtain a plasma-modified PP decorative film;

[0063] Step 1: Coat the surface of the headboard of the medium-density children's bed with plasma-modified PP decorative film by hot pressing, and use the air blowing device to remove the dust on the surface of the headboard, and at the same time form a layer of phosphating film on the surface of the PP decorative film. On the one hand, the phosphating film can enhance the adhesion of the paint film after powder spraying, and on the other hand, it can ensure that the surface temperature of the treated PP decorative film is below 35°C.

[0064] Step 3: Send the headboard with PP decorative film to the position of the spray gun in the powder spraying room thr...

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Abstract

The invention discloses a method for using plasma to modify PP decorative film finishes. The method uses glow discharge, pulse low temperature or dielectric barrier plasma equipment to perform plasma modification treatment on wood product PP decorative films and paint films. Cover the PP decorative film veneer on the surface of the wood product after plasma treatment, and use spraying, brushing, roller coating and other methods to apply primer or one-time thick coating on the surface; PP decorative film or paint film surface After plasma modification treatment, physical etching and chemical modification can occur at the same time, increasing surface tension, enhancing wettability, and improving chemical activity, which is beneficial to improving the adhesion of the PP decorative film or paint film surface and ensuring that the wood Product PP decorative film surface coating effect. The method of the present invention can improve the overall color coordination and visual compatibility between mutual parts of wood products, increase the layering and fullness of the product surface, is easy to operate, has good environmental protection and stable quality, and is suitable for industrial promotion.

Description

Technical field [0001] The invention belongs to the field of material technology, and specifically relates to a method of using plasma modified PP decorative film facings. Background technique [0002] With the rapid development of the economy and the continuous improvement of material living standards, my country's furniture industry and interior decoration industry have shown a rapid growth trend in recent years, driving a large demand for surface decoration materials of wood products. The surface finishes of wood products usually include decorative materials such as decorative veneer, melamine paper, impregnated film paper, polyvinyl chloride (PVC), polypropylene (PP) film and polyester film (PET). Among them, plastic films (PVC, PP , PET) and decorative paper (melamine decorative paper, impregnated adhesive film paper, etc.) can be made into a surface effect with the visual feel and even texture of natural wood. Compared with natural precious wood decorative veneer, it c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/12C08J7/043C08L23/12C09D175/14C09D133/04C09D4/02C09D4/06B05D1/06B05D3/06B05D3/14
CPCB05D1/06B05D3/06B05D3/067B05D3/144B05D2201/02C08J7/042C08J7/123C08J2323/12C08J2433/04C08J2475/14
Inventor 彭晓瑞张占宽
Owner RES INST OF FORESTRY NEW TECH CHINESE ACAD OF FORESTRY