CN201258581Y

CN201258581Y - Composite floor

Info

Publication number: CN201258581Y
Application number: CNU200820200589XU
Authority: CN
Inventors: 张俊娥
Original assignee: HAODI FLOORING (LAIAN) CO Ltd
Current assignee: HAODI FLOORING (LAIAN) CO Ltd
Priority date: 2008-09-10
Filing date: 2008-09-10
Publication date: 2009-06-17
Anticipated expiration: 2018-09-10

Abstract

The utility model relates to a laminate floor. A mixed layer consists of thermoplastic plastics and wood powder which are mixed and extruded together, and a profile consisting of the mixed layer and hot-melt resin which are mixed and extruded together serves as the basic material of the floor; a decorative layer and a survey wear resistant layer are subsequently paved on the surface of the basic material of the floor to obtain floor blank; finally, the laminate floor finished product can be obtained through conventional slotting and the like treatment procedures. The laminate floor has the natural texture and the comfort of solid wood floor, and overcomes the disadvantages of non-waterproofing, easy corrosion, easy deformation and non-wear resistance of the traditional wooden floor.

Description

Composite floor board

Technical field

The utility model relates to the composite floor board that is used for the decorative constructure flooring, and particularly its section is rendered as the composite floor board of forming laminated sheet material structure.

Background technology

In the pavement material of existing ground, the use of wood floors is accepted extensively by people.Yet wood floors chance water makes moist and can cause distortion, rotten, perhaps meets with the problem of damaging by worms in actual use.These problems are not solved all the time well.Simultaneously, wooden floor will consume a large amount of natural resources, make the deterioration of the ecological environment, the mutual survival environment that infringement is human, though solid wooden compound floor and consolidated floor can reduce the felling quantity to natural forest, but energy consumption height in process of production, and can produce such as waste material, waste water, waste gas " three wastes " emission problem.

In order to solve this type of problem, people are constantly seeking the composite floor board that its raw material are easy to get, production technology is easy.Chinese patent application document CN1325791A discloses a kind of composite board and composite floor board, and its surface layer is a common wood, and its bottom then is a bamboo plywood.This composite floor board has intensity height, humidity, advantage such as anticorrosive, anti-insect, not yielding.But it is complicated that this material manufacturing process still shows, and cost is higher.Chinese patent literature CN2541549Y discloses a kind of composite floor board, and its principal character is that bottom is a plastic plate, has added one deck lignum cinnamomi camphorae plate on bottom, can prevent to damage by worms.

The utility model content

The utility model purpose is to provide a kind of composite floor board.This floor has good protection against the tide, flame-retarding characteristic, and its anti-deformation is good, does not contain formaldehyde in the product, and its raw material sources is extensive, and is with low cost, and processing is convenient.

According to the utility model purpose, the composite floor board that the applicant developed comprises wearing layer and decorative layer from top to bottom successively on its cross section.Wearing layer is mated formation at the upper surface of decorative layer.Decorative layer is the natural wooden skin of thickness 0.2mm～5mm.The hot-melt resin layer is equipped with on the soffit upper berth of decorative layer.The mixed layer that comprises thermoplastic and wooden powder is equipped with on the soffit upper berth of hot-melt resin layer.The hot-melt resin layer is adhesively fixed behind hot melt with decorative layer and mixed layer respectively.

The utility model composite floor board adopts thermoplastic to mix with wood powder to extrude and obtains mixed layer, again mixed layer is mixed to extrude obtaining section bar with hot-melt resin.With the basic material of this section bar as the floor, after laying decorative layer and surface wear-resistant layer successively on this basic material surface, floor, can obtain the floor blank, after treatment process such as routine fluting, can obtain the composite floor board finished product at last.This composite floor board has the native texture and the comfortableness of wooden floor, the consumption habit that meets the customer, overcome non-watertight, apt to rot, yielding, the not wear-resisting shortcoming in conventional wooden floor again, it is cheap, manufacturing and easy for installation provides a kind of feasible approach for saving the solid wood raw material simultaneously.

The drawing explanation

Fig. 1 the utility model composite floor board section structure schematic diagram.

The specific embodiment

Describe the utility model composite floor board in detail below in conjunction with accompanying drawing:

Referring to Fig. 1, the section of the utility model composite floor board constitutes from its surface that contacts with the human body vola downwards, comprises wearing layer 1, decorative layer 2, hot-melt resin layer 3 and mixed layer 4 successively.The periphery of this composite floor board is provided with its shape corresponding mutually tenon 401 and tongue-and-groove 402.Fig. 1 only shows tenon 401 and tongue-and-groove 402 on two relative sides of composite floor board from the angle of section structure.But, it should be appreciated by those skilled in the art that the actual products of composite floor board also to be provided with identical tenon and tongue-and-groove on its two relative sides in Fig. 1, can not seeing.This composite floor board obtains according to preparation method described below.Wherein, the materials of wearing layer 1 are selected wear-resistant immersion paper that contains alundum (Al or the wearproof paint that contains high-abrasive material usually for use; The materials of decorative layer 2 are natural wooden skin; The materials of hot-melt resin layer 3 are selected one usually in ethylene vinyl acetate copolymer resins, ethylene ethyl acrylate copolymer resins, polyamide, polyurethane resin and polyvinyl butyral resin; Mixed layer 4 is mixtures of thermoplastic and wooden powder.Wherein, the materials of thermoplastic can be selected one in polyethylene, polypropylene and polyvinyl chloride, perhaps use their mixture.The materials of wooden powder can be selected wood fibre, crop branch fiber for use, perhaps use the mixture of these two kinds of fibers.

During the utility model composite floor board, carry out according to following operating procedure:

At first, the wear-resistant immersion paper that contains alundum (Al from the buying of common building materials market is layed in natural wooden skin surface, after 168 ℃ of hot pressing, makes both strong bonded again, make the composite skins that contains wearing layer 1 and decorative layer 2 as shown in Figure 1.

Secondly, polyethylene and the abundant stirring and evenly mixing of wood fibre are heated to 160 ℃, extrude, obtain wood shown in Figure 1 and mould mixed layer 4 according to predetermined thickness.Wherein, the granularity of wood fibre is 80 orders.In mixed layer 4, poly percentage by weight is 30%.

Once more, the temperature that keeps gained wood to mould mixed layer 4 is 100 ℃, and laying its temperature in the surface of this mixed layer 4 with fashion of extrusion is 110 ℃ ethylene vinyl acetate copolymer resins layer 3, promptly can obtain intermediate slab.

At last, keeping aforementioned intermediate slab temperature is 100 ℃, on ethylene vinyl acetate copolymer resins laminar surface, lay the previous composite skins that constitutes by wearing layer 1 and decorative layer 2 that obtains, and under 0.5Mpa pressure composite skins in the one side at natural wooden skin place overlay on ethylene vinyl acetate copolymer resins layer, promptly obtain the semiproduct slab.Handled through conventional steps such as follow-up flutings again, can be obtained the composite floor board finished product that its periphery has tongue-and-groove.

Claims

1. composite floor board, on its cross section, comprise wearing layer and decorative layer from top to bottom successively, described wearing layer is mated formation at the upper surface of described decorative layer, it is characterized in that, described decorative layer is the natural wooden skin of thickness 0.2mm～5mm, the hot-melt resin layer is equipped with on the soffit upper berth of described decorative layer, the mixed layer that comprises thermoplastic and wooden powder is equipped with on described hot-melt resin layer soffit upper berth, and described hot-melt resin layer is adhesively fixed behind hot melt with described decorative layer and described mixed layer respectively.