CN210369720U

CN210369720U - Composite wood floor with PP film as surface layer

Info

Publication number: CN210369720U
Application number: CN201920558830.4U
Authority: CN
Inventors: 吉富堂; 曹伟强; 宋书蓉; 刘长柏; 黄安祥
Original assignee: Flinger Home Technology Co ltd
Current assignee: Flinger Home Technology Co ltd
Priority date: 2019-04-23
Filing date: 2019-04-23
Publication date: 2020-04-21
Anticipated expiration: 2029-04-23

Abstract

The utility model provides a top layer is compound wooden floor of PP membrane, it includes: the substrate layer I, PP film decorative layer; the PP film decorative layer is coated on the top surface of the substrate layer I, and the PP film decorative layer and the substrate layer I are bonded and combined into a whole through PUR hot melt adhesive. The floor is light, comfortable and environment friendly.

Description

Composite wood floor with PP film as surface layer

Technical Field

The utility model relates to a timber apron field especially relates to a top layer is compound wooden floor of PP membrane.

Background

The laminate flooring is a common floor decoration and finishing material, usually, laminate flooring is impregnated with thermosetting amino resin with one or more layers of special paper, laid on the surface of artificial board base material such as shaving board, high-density fiberboard, etc., with a balance layer on the back and a wear-resistant layer on the front, and then hot pressed and formed.

In order to ensure that the laminate flooring has better stability and physical and chemical properties, the wear-resistant layer on the surface of the flooring contains a large amount of aluminum oxide particles, and the density of the base material of the shaving board or the fiber board is higher, so that the laminate flooring is hard and cannot give people a comfortable feeling of feet. A large amount of adhesive is also used in the production process of the laminate flooring, and the produced large amount of formaldehyde is released to cause harm to producers and users.

The utility model discloses a utility model with publication number CN207775141U discloses a PP membrane decoration panel, it is including substrate layer, PP membrane, gluing agent, and wherein the PP membrane is cut and is arranged in the top surface of substrate layer, and the PP membrane is scribbled PUR glue through corona back coating processing again, and the PP membrane is passed through PUR glue and cladding equipment roll-in compounding with the two-layer material of substrate layer and is become integrative, and the PP membrane is the PP membrane of surface zone decorative cover. In the patent, the PP film is adhered to the base material of the high-density fiberboard, the board is hard, is not suitable for paving the ground and is only used for decorating furniture and cabinets, and a large amount of adhesive is needed in the preparation process of the fiberboard, so that the environment is not protected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a top layer is compound wooden floor of PP membrane, and it is used for the interior floor to decorate, and matter is light, and the feel is comfortable, and very environmental protection.

In order to achieve the above object, the utility model adopts the following technical scheme: the compound wooden floor that the top layer is PP membrane, it includes: the substrate layer I, PP film decorative layer; the PP film decorative layer is coated on the top surface of the substrate layer I, and the PP film decorative layer and the substrate layer I are bonded and combined into a whole through PUR hot melt adhesive.

The utility model provides an among the compound wooden floor, substrate layer I is multilayer plywood or the long-pending material of individual layer board for utilizing the preparation of environment-friendly gluing agent.

The utility model provides an in the compound wooden floor, the gluing agent is lignin glue or big bean gum.

The utility model provides an among the compound wooden floor, PP membrane decorative layer adopts 0.1 ~ 0.5 mm's PP membrane, PP membrane surface is provided with decorates printing ink and hard coat.

The utility model provides an among the compound wooden floor, the coating weight of PUR hot melt adhesive is 35-60 g/square meter.

The utility model provides an in the compound wooden floor, PP membrane decorative layer has the extension that extends to substrate layer I side, the extension passes through PUR hot melt adhesive and combines in substrate layer I.

A preparation method of a composite wood floor with a PP film as a surface layer comprises the following steps:

step 101, preparing a composite solid wood substrate layer: uniformly gluing rotary cut veneers of one or more fast growing woods (eucalyptus, beech, poplar, birch and the like), and then hot-pressing into plywood or laminated veneer lumber by using an environment-friendly adhesive;

step 102, forming a base material layer I: after balanced drying, cutting the solid wood composite substrate layer into small pieces with equal width, sanding with a sander at fixed thickness, milling a mortise around with slotting equipment, and stacking after strict inspection for coating;

103, preparing a PP film with the thickness of 0.1-0.5 mm, wherein the surface of the PP film is provided with a decorative ink layer and a hard coating;

step 104, cutting the PP film into small rolls according to the specification of the coating of the substrate layer I, wherein the width of the PP film is slightly larger than that of the substrate layer I;

105, placing the needed PP film on a coating device, after uniformly blade-coating the back of the PP film with PUR hot melt adhesive, immediately attaching the PP film to a substrate layer I, and rolling the PP film and the substrate layer I on the surface by using a pressing wheel to combine the PP film and the substrate layer I together;

and 106, curing the coated plate blank to enable the PUR hot melt adhesive to fully react and solidify to obtain a finished product.

The utility model provides a in step 105 of the preparation method of composite wood floor with PP membrane as surface layer, the coating weight of PUR hot melt adhesive requires 35 ~ 60 g/square meter.

The utility model provides a pair of in step 106 of the preparation method of compound wooden floor that the top layer is the PP membrane, the temperature, humidity, the time of health preserving are as follows: the curing temperature is 15-35 ℃, the curing humidity is 50-80%, and the curing time is not less than 24 h.

Compared with the prior art, the utility model has the advantages that:

1. the utility model provides a preparation method of compound wooden floor that the top layer is the PP membrane, used raw and other materials all are very environmental protection, and the preparation process and the use of product can not all cause harm to environment and human body. The PUR hot melt adhesive does not contain any organic solvent, has 100 percent of solid content, and is green and environment-friendly; the PP film can be degraded when recovered, only releases water and carbon dioxide when burned, and does not generate any toxic gas.

2. The utility model provides a top layer is the preparation method of the compound wooden floor of PP membrane, and PP membrane formability is good and the price is lower, and PUR hot melt adhesive solidification speed piece and bonding strength are big, can realize serialization production, production speed piece.

3. In the product obtained by the preparation method provided by the utility model, the formaldehyde emission of the floor is less than or equal to 0.05mg/m³Far below the national standard requirement of 0.124mg/m³。

4. Polypropylene (PP) comprehensive properties is good, like mechanical properties, heat resistance, fatigue resistance, chemical resistance and electrical insulation etc, the floor board possess excellent comprehensive properties equally.

5. The utility model discloses a PP membrane is the thermoplastic resin that matter is light, and the cladding is on the compound substrate surface of wood, and the floor foot feels very comfortable.

6, the PP film is coated on the surface of the floor, has excellent sealing performance, has the functions of blocking water vapor and formaldehyde release, and has outstanding waterproof, moistureproof and environmental protection properties.

Drawings

Fig. 1 is a schematic structural view of a composite wood floor with a PP film as a surface layer according to a first embodiment of the present invention.

Fig. 2 is a flow chart of a method for manufacturing a composite wood floor with a PP film as a surface layer according to a first embodiment of the present invention.

Detailed Description

The technical solution adopted by the present invention will be further described with reference to the schematic drawings.

The related terms in the utility model are explained as follows:

PP: polypropylene (Polypropylene) is a thermoplastic resin made by polymerizing propylene.

Pur (polyurethane reactive): a moisture-curing reactive polyurethane hot-melt adhesive is a polymer with repeated structural units of urethane chain segments, which is prepared by the reaction of isocyanate and polyol.

Example 1: referring to fig. 1, the composite wood floor with the surface layer made of the PP film comprises a substrate layer I300 and a PP film decorative layer 400, wherein the PP film decorative layer is coated on the top surface of the substrate layer I, the PP film decorative layer and the substrate layer I are bonded into a whole through PUR hot melt adhesive bonding, the PUR hot melt adhesive forms a PUR hot melt adhesive layer 500, and the coating amount of the PUR hot melt adhesive is 35-60 g/square meter, for example, 50 g/square meter.

For prior art that background art mentioned usually the substrate be high density fiberboard, mainly used furniture cupboard is decorated and is used, and the utility model discloses then emphasize that compound wooden floor uses the substrate to be multilayer wood composite substrate, and the product is used for the interior floor decoration, and very environmental protection, and formaldehyde emission is not more than 0.05mg/m³。

It should be noted that the substrate layer I300 is a multilayer plywood or a single-layer laminated board prepared by using an environment-friendly adhesive, and the adhesive includes but is not limited to lignin adhesive and soybean adhesive, and the lignin adhesive is a lignin adhesive.

In fig. 1, a PP film with a thickness of 0.1-0.5 mm, for example, a PP film with a thickness of 0.3mm is used as the PP film decoration layer 400, and the surface of the PP film is provided with the decoration ink and the hard coating.

It is worth mentioning that, referring to fig. 1, the PP film decoration layer 400 has an extension part 400' extending to the side of the substrate layer I, the extension part is bonded to the substrate layer I through PUR hot melt adhesive, and the PP film with the excessive width is adhered to the side of the substrate through oblique roller rolling, so that the installation stability of the PP film can be improved, the area of the PP film covering the whole floor can be enhanced, and the escape of related media can be further inhibited.

The preparation method of the composite wood floor with the PP film as the surface layer in this embodiment can refer to embodiment 1, which is not described herein again.

The utility model provides a floor can be used to the interior ground decoration, and matter is light, and the feel is comfortable, and very environmental protection. It is pointed out that the formaldehyde release value of the national standard GB 18580-2017 indoor decoration and finishing material artificial board and formaldehyde release limit in the products thereof is 0.124mg/m³The formaldehyde emission amount of the floor is less than or equal to 0.05mg/m³Far below the national standard requirements.

Additionally, the utility model provides a PP membrane tectorial face floor is owing to have wood composite substrate layer, PP membrane, PUR hot melt adhesive layer, and the top surface of substrate layer is arranged in to the PP membrane, and the PP membrane bonds through PUR hot melt adhesive with the two-layer material of substrate layer to combine integratively, and this type of structure is compared in prior art, and base plate more is applicable to the ground of mating formation.

The PP film is a right-angle corner usually at the corner of the floor surface and the side surface, and an arc-shaped chamfer can be arranged on the surface and the side surface of the floor, so that the PP film can be more favorably extended to the side surface of the floor under the film, and the corner of the floor and the PP film are not easy to damage.

In addition, floor surface and/or ground side are provided with line structure, and this line structure can improve PUR hot melt adhesive's adhesive force, improves the stability of PP membrane installation.

As another improvement, a collar is arranged around the extension part of the PP film extending to the side surface of the floor, and the collar can prevent the edge of the PP film from being turned up. The collar includes, but is not limited to, a rubber band.

The extension of the PP film to the floor side may be in the size of 2-8 mm.

The following describes in detail the preparation method of the composite wood floor with the PP film as the surface layer:

referring to fig. 2, a method for manufacturing a composite wood flooring having a PP film as a surface layer includes: step 101, preparing a composite solid wood base material layer: gluing 7 layers of solid wood rotary-cut veneers, preparing plywood base materials from plate blanks prepared in a criss-cross mode in the wood grain direction, wherein the specification of the base materials is 1220-1300-15.2 mm, and the adhesive is lignin glue or soybean glue.

Step 102, forming of a base material layer I: the base material is dried to the moisture content of 6% -12%, cut into 1220 × 160 × 15.2mm small pieces, sanded to the base material with a sanding machine and a 150-mesh sanding belt, and slotted by using Jintian Haomai slotting equipment to obtain the specification of 1200 × 150 × 15 mm.

Step 103, preparing a PP film: and preparing the PP film with the surface provided with decorative ink and a hard coating and the thickness of 0.2 mm.

Step 104, slitting a PP film: cutting the PP film according to the specification of the substrate layer I coating, and cutting the PP film into small rolls, wherein the width of the PP film is slightly larger than that of the substrate layer I, for example: cutting into pieces with the width of 154-164 mm and rolling into tidy film rolls.

Step 105, coating a PP film: the PP film is rolled on Babeilan film-covering and veneering equipment, the back of the PP film is uniformly coated with PUR hot melt adhesive and then is rolled and adhered on the surface of the base material by a pressing wheel, and the PP film with the redundant width is rolled and adhered on the side surface of the base material by an inclined pressing wheel; the PUR hot melt adhesive is of a brand of bostik, and the glue coating amount is 35 g/square meter;

step 106, health preserving: and (3) placing the coated plate in a constant temperature and humidity chamber for curing at 25 ℃ and 60% humidity for 24 hours to obtain a finished product.

Step 107, finished product inspection: and (3) inspecting finished products, wherein the results are detected according to GB/T17657 and 2013 artificial boards and veneer artificial board physical and chemical property test methods, and are shown in the following table 1:

TABLE 1

The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.

Claims

1. The utility model provides a top layer is compound wooden floor of PP membrane which characterized in that, it includes: the substrate layer I, PP film decorative layer;

the PP film decorative layer is coated on the top surface of the substrate layer I, and the PP film decorative layer and the substrate layer I are bonded and combined into a whole through PUR hot melt adhesive;

the substrate layer I is a multilayer plywood or a single-layer laminated board prepared by utilizing an environment-friendly adhesive.

2. The composite wood flooring according to claim 1, wherein the adhesive is lignin gum or soybean gum.

3. The composite wood floor as claimed in claim 1, wherein the PP film decorative layer is a 0.1-0.5 mm PP film, and the surface of the PP film is provided with decorative ink and a hard coating.

4. The composite wood flooring of claim 1, wherein the coating amount of the PUR hot melt adhesive is from 35 to 60 grams per square meter.

5. The composite wood flooring according to claim 1, wherein the PP film decorative layer has an extension portion extending to the side of the substrate layer I, the extension portion being bonded to the substrate layer I by PUR hot melt adhesive.