CN102602085A

CN102602085A - Weatherproof flexible veneer and manufacturing method thereof

Info

Publication number: CN102602085A
Application number: CN2012100531340A
Authority: CN
Inventors: 赵年高; 赵利军
Original assignee: ZHEJIANG LINYA CO Ltd
Current assignee: ZHEJIANG LINYA CO Ltd
Priority date: 2012-03-02
Filing date: 2012-03-02
Publication date: 2012-07-25
Anticipated expiration: 2032-03-02
Also published as: CN102602085B

Abstract

The invention provides a weatherproof flexible veneer, which comprises a nonwoven fabric layer, a polyurethane (PUR) hot melt adhesive layer, a wood solid veneer layer, a water-based coloring layer, a PUR hot melt adhesive paint layer and an ultraviolet (UV) finish paint layer, wherein the nonwoven fabric layer is bonded with the solid wood veneer layer through the PUR hot melt adhesive layer, and the water-based coloring layer, the PUR hot melt adhesive paint layer and the UV-side paint layer are sequentially coated on the upper surface of the solid wood veneer layer. The weatherproof flexible veneer has good flexibility and does not crack and prevents the paint from peeling off after being bent for multiple times, the adopted synthesized materials can meet the international environment-friendly requirement, a traditional paint technical is changed, no pollution is led to an application environment, the utilization rate of the paint is high, the weatherproof flexible veneer is free from being delaminated at a high temperature and being embrittled at a low temperature, has excellent properties such as ultraviolet resistance, aging resistance and water resistance and can be made into a veneer synthesized material which can be continuously coiled, and the requirement on elongation and mass production of the material can be met.

Description

Wooden skin of a kind of weather-proof flexibility and manufacturing approach thereof

Technical field

The invention belongs to wood processing field, specifically is the wooden skin of a kind of weather-proof flexibility.

Background technology

The wood skin is one of building materials, the requisite material of furniture industry, and common wooden skin pliability is good inadequately, crooked easy of crack; Paint comes off easily; High temperature is prone to delamination, the easy embrittlement of low temperature, and weather resistance such as uvioresistant, anti-aging, water proofing property is poor; And traditional painting technology has pollution to environment, and the paint utilization rate is not high.

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Summary of the invention

In order to solve the problems of the technologies described above, the invention provides the wooden skin of a kind of weather-proof flexibility.

The wooden skin of a kind of weather-proof flexibility; It is characterized in that it comprises nonwoven layer, PUR hot melt adhesive layer, solid wood cortex, water-based dyed layer, PUR PUR enamelled coating and the UV top coat layer that is arranged in order from bottom to top; Said nonwoven layer is bonding through PUR hot melt adhesive layer and solid wood cortex, and solid wood cortex upper surface is coated with successively water-based dyed layer, PUR PUR enamelled coating and UV top coat layer are set.

The wooden skin of described a kind of weather-proof flexibility, the thickness that it is characterized in that said solid wood cortex is 0.25-0.35mm.

The manufacturing approach of the wooden skin of described a kind of weather-proof flexibility is characterized in that comprising the steps:

1) wood skin and nonwoven is bonding through the PUR PUR, through hot-rolling pressing becoming basic material.

2) adopt water stain evenly painted on wooden skin surface, highlight the clear naturally texture of wooden skin, application hot melt shellac varnish, UV finish paint make the brown hole sealing of wooden skin surface reach plentiful, aesthetic again.

Described method, the consumption that it is characterized in that PUR PUR in the step 1) is 50-60g/ ㎡.

Described method is characterized in that step 2) in the consumption of hot melt shellac varnish be 50-60g/ ㎡.

Described method is characterized in that step 2) in the consumption of water stain be 60-80 g/ ㎡.

Described method is characterized in that step 2) in the consumption of UV finish paint be 20-40 g/ ㎡.

The wooden skin of a kind of weather-proof flexibility of the present invention has good flexible, and repeatedly the bending-wood skin does not ftracture, paints and do not come off; The synthetic material that is adopted can reach international environmental requirement, has changed traditional painting technology, and is pollution-free to environment for use; The utilization rate of paint is high; Not delamination of high temperature, not embrittlement of low temperature and have performances such as very high uvioresistant, anti-aging, waterproof can be processed the wooden skin synthetic material of continuous rolling, can satisfy long material and requirement of mass production.

Description of drawings

Fig. 1 is the structural representation of the wooden skin of a kind of weather-proof flexibility of the present invention;

Fig. 2 is the product overall schematic of the wooden skin of a kind of weather-proof flexibility of the present invention;

Among the figure, 1-UV top coat layer; 2-PUR PUR enamelled coating; 3-water-based dyed layer; 4-solid wood cortex; 5-PUR hot melt adhesive layer; 6-nonwoven layer.

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The specific embodiment

Below in conjunction with accompanying drawing the present invention is elaborated.

As depicted in figs. 1 and 2; The wooden skin of a kind of weather-proof flexibility of the present invention; Comprise the nonwoven layer, PUR hot melt adhesive layer, solid wood cortex, water-based dyed layer, PUR PUR enamelled coating and the UV top coat layer that are arranged in order from bottom to top; Nonwoven layer is bonding through PUR hot melt adhesive layer and solid wood cortex, and solid wood cortex upper surface is coated with successively water-based dyed layer, PUR PUR enamelled coating and UV top coat layer are set.

Embodiment 1

The wooden skin of a kind of weather-proof flexibility of the present invention uses following material to process: the hot solid wood cortex in sky that the solid wood cortex adopts Dehua TB New Decoration Material Co., Ltd to produce; The PUR hot melt adhesive layer adopts the PUR PUR of Germany's " glue king " board; PUR PUR enamelled coating adopts the PUR hot melt shellac varnish of Germany's " Ke Libao " board; The water-based dyed layer uses the colouring agent of the U.S. " Du Pont " board; The UV top coat layer adopts the really UV finish paint of photo-curing material Co., Ltd production of east, Zhuhai.

This production technology is following:

1. wood skin and the nonwoven of thickness 0.3mm is bonding through the PUR PUR, and pressing becomes basic material through hot-rolling, and wherein the consumption of PUR PUR is 55g/ ㎡;

2. adopt water stain evenly painted on wooden skin surface; Highlight the clear naturally texture of wooden skin; Application hot melt shellac varnish, UV finish paint make the brown hole sealing of wooden skin surface reach plentiful, aesthetic again; Wherein the consumption of hot melt shellac varnish is 55g/ ㎡, and the water stain consumption is 70 g/ ㎡, and UV finish paint consumption is 30 g/ ㎡.

Above technology all utilizes plant equipment to reach industrialized mass production.

The properties of product experiment of embodiment 1

1. boiling water resistance experiment

After 24 hours boiling water test, coating surface does not have phenomenon such as come off, wrinkling.

2. the acid experiment of salt tolerant

After the salt tolerant acid test, coating surface does not have bubble and other significant changes.

3. washing fastness experiment

After washing fastness test, coating surface does not have and comes off or other significant changes.

4. salt fog resistance experiment

After the test of the acetic acid salt spray of 1000h, coating surface does not have foaming, comes off or other significant changes, and two side forms of the ruling limit permeating corrosion width that places an order is no more than 4mm.

5. humidity resistance

Behind the damp heat test of 1000h, coating surface does not have foaming, comes off or other significant changes.

6. quicken the weatherability experiment

1000h carries out artificial accelerated aging test, variable color degree Δ E≤2.5, gloss retention＞90% with the xenon lamp irradiation.

More than the experimental technique of experiment all carries out according to the prescriptive procedure of national standard.

The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all is included within protection scope of the present invention.

Claims

1. wooden skin of weather-proof flexibility; It is characterized in that it comprises nonwoven layer (6), PUR hot melt adhesive layer (5), solid wood cortex (4), water-based dyed layer (3), PUR PUR enamelled coating (2) and the UV top coat layer (1) that is arranged in order from bottom to top; Said nonwoven layer (6) is bonding through PUR hot melt adhesive layer (5) and solid wood cortex (4), and solid wood cortex (4) upper surface is coated with successively water-based dyed layer (3), PUR PUR enamelled coating (2) and UV top coat layer (1) are set.

2. the wooden skin of a kind of weather-proof flexibility as claimed in claim 1 is characterized in that the thickness of said solid wood cortex (4) is 0.25-0.35mm.

3. the manufacturing approach of the wooden skin of a kind of weather-proof flexibility as claimed in claim 1 is characterized in that comprising the steps:

1) wood skin and nonwoven is bonding through the PUR PUR, through hot-rolling pressing becoming basic material;

4. method as claimed in claim 3, the consumption that it is characterized in that PUR PUR in the step 1) is 50-60g/ ㎡.

5. method as claimed in claim 3 is characterized in that step 2) in the consumption of hot melt shellac varnish be 50-60g/ ㎡.

6. method as claimed in claim 3 is characterized in that step 2) in the consumption of water stain be 60-80 g/ ㎡.

7. method as claimed in claim 3 is characterized in that step 2) in the consumption of UV finish paint be 20-40 g/ ㎡.