KR20030018670A - Decorative flooring cover comprising elastic form layer including polyvinyl chloride and rubber and method for preparing the same - Google Patents

Abstract

PURPOSE: Provided is a floor treatment, which improves the buffer effect as well as is good in the acoustic property, the resiliency, the restoring force, the cushion property and the elasticity. CONSTITUTION: The floor treatments of multi-layered synthetic resins comprise an elastic foam layer(10) containing (a) a polyvinyl chloride and (b) a rubber as a substrate. The elastic foam layer(10) includes (a) 100 parts by weight of polyvinyl chloride which has a polymerization degree of 1000 to 1700; (b) 10 to 50 parts by weight of a nitrile butadiene rubber or a styrene butadiene rubber; (c) 50 to 100 parts by weight of a plasticizer; (d) 2 to 5 parts by weight of a foaming stabilizer; (e) 2 to 5 parts by weight of a foaming agent.

Description

Floor decoration material comprising an elastic foaming layer containing polyvinyl chloride and rubber and a method for manufacturing the same {DECORATIVE FLOORING COVER COMPRISING ELASTIC FORM LAYER INCLUDING POLYVINYL CHLORIDE AND RUBBER AND METHOD FOR PREPARING THE SAME}

The present invention relates to a flooring material comprising an elastic foam layer containing polyvinyl chloride and rubber, and to a method for manufacturing the same, which improves the walking and cushioning effect of the conventional flooring material, as well as excellent restoring force and shock absorption. It relates to a decorative material and a method of manufacturing the same.

Vinyl chloride resin flooring is used for various purposes such as insulation, soundproofing, dustproofing, decoration. In general, the vinyl chloride resin floor covering material is composed of a cover layer, an interlayer layer, a dimensional reinforcement layer, and a foam layer from above, and each layer has a special function. The cover layer provides the aesthetic perspective function provided by the interlayer, and the interlayer provides the function of decoration by giving color or printing, and the reinforcement layer is a glass fiber impregnated layer to reinforce the dimensional stability of the product. Has a cushioning function. The structure of the flooring material can vary depending on the application.

The foam layer of the conventional floor decoration material is manufactured by foaming in a foam oven by mixing a foaming agent in a vinyl chloride resin, the function of which is merely limited to comfortable walking and buffering effect.

SUMMARY OF THE INVENTION In view of the problems of the prior art, an object of the present invention is to provide a flooring material having excellent sound absorption, restoring force, cushioning property, and elasticity, as well as improved walking feeling and cushioning effect.

Another object of the present invention is to provide a method for producing a flooring material excellent in sound absorption, restoring force, cushioning properties, and elasticity.

1 and 2 is a cross-sectional view of the flooring according to the present invention.

Figure 3 is a flooring manufacturing process according to the present invention.

(Explanation of symbols for the main parts of the drawing)

1: surface treatment layer 2: label layer

3: interlayer 4: reinforcing layer

7: Reinforcement layer 9: Stop layer

10: elastic foam layer 11: back layer

In order to achieve the above object, the present invention provides a plurality of laminated synthetic resin flooring,

a) polyvinyl chloride; And

b) rubber

It provides a flooring material comprising an elastic foam layer containing.

In addition, the present invention,

a) i) polyvinyl chloride; And

ii) rubber;

Preparing an elastic foam layer comprising a;

b) providing a surface treatment layer, a label layer, an interlayer, a reinforcement layer, a dimension reinforcement layer, and a stop layer;

c) laminating each of the above layers in the order of a surface treatment layer, a label layer, an interlayer, a reinforcement layer, a reinforcement layer, a middle layer, and an elastic foam layer;

d) injecting the laminated layers into a foamer to age and foam; And

e) thermolysing the foamed layers in an embossing roll

It provides a method of manufacturing a floor decoration comprising a.

Hereinafter, the present invention will be described in detail.

The function and composition of the layers is as follows.

First, the surface treatment layer 1 prevents contaminant adhesion and scratches, and facilitates cleaning. The surface treatment layer includes a thermosetting oily polyurethane or a thermosetting aqueous polyurethane, and a photocurable ultraviolet treatment agent.

The cover layer (2) under the surface treatment layer (1), when transparently used, sees the printing or color of the interlayer (3) and protects the interlayer, and when used opaquely, the pigment on the cover layer itself. Or a pigment is added and a decorative effect is shown. The label layer 2 is 100 parts by weight of polyvinyl chloride having a degree of polymerization of 1000 to 1700, 30 to 50 parts by weight of a plasticizer dioctylphthalate (DOP), 1 to 3 parts by weight of an epoxy resin (ESO), and barium-zinc. 2 to 6 parts by weight of the stabilizer.

The interlayer layer 3 shows the effect of decorative appearance by printing or adding a pigment, 100 parts by weight of polyvinyl chloride having a polymerization degree of 1000 to 1700, 30 to 60 parts by weight of plasticizer dioctylphthalate, and 1 to 3 of epoxy resin (ESO). Parts by weight, 2 to 6 parts by weight of a barium-zinc stabilizer, 1 to 3 parts by weight of ethylene bis stearylamide as an organic complexing agent, metamethylacrylate and butylacrylate as processing aids. 2 to 5 parts by weight of the mixture, and 20 to 130 parts by weight of calcium carbonate (CaCO ₃ ).

The reinforcing layer 4 absorbs a part of the impact applied to the glass fiber, 100 parts by weight of polyvinyl chloride having a degree of polymerization of 1000 to 1700, 30 to 60 parts by weight of plasticizer dioctylphthalate, and 1 to 3 parts by weight of epoxy resin (ESO). 2 to 6 parts by weight of a barium-zinc stabilizer, 1 to 3 parts by weight of ethylene bis stearylamide as an organic complexing agent, 2 to 5 parts by weight of a mixture of methyl methacrylate and butyl acrylate as processing aids, And 20 to 150 parts by weight of calcium carbonate (CaCO ₃ ).

The dimensional reinforcing layer 7 reinforces the dimensional stability of the flooring material, preferably glass fiber or glass cream impregnated with vinyl chloride sol. The impregnation with vinyl chloride sol here is that the glass fiber is easy to laminate with other layers. Such glass fibers are used in the form of paper, woven cloth, non-woven cloth, or the like, and may be replaced with mineral paper or polyester nonwoven fabric. The vinyl chloride sol is 100 parts by weight of polyvinyl chloride having a polymerization degree of 1200 to 2000, 40 to 80 parts by weight of plasticizer dioctylphthalate, 1 to 3 parts by weight of epoxy resin (ESO), 2 to 6 parts by weight of barium-zinc stabilizer, and Calcium Carbonate₃) 0.01 Preference is given to sol comprising from about 80 parts by weight.

The stop layer 9 improves the adhesion strength between the glass fiber and the elastic foam layer 10 and prevents the impact directly on the elastic foam layer 10. The composition of the stop layer 9 is the same as that of the reinforcing layer 4.

The elastic foam layer 10 has a buffering, sounding, and cushioning action, 100 parts by weight of polyvinyl chloride having a polymerization degree of 1000 to 1700, nitrile-butadiene rubber (NBR) or styrene-butadiene rubber (styrene- butadiene rubber: 10 to 50 parts by weight of SBR), 50 to 100 parts by weight of a plasticizer dioctylphthalate, 2 to 5 parts by weight of a barium-zinc compound as a foam stabilizer, 2 to 5 parts by weight of azodicarbonamide as a foaming agent, 0.01 to 80 parts by weight of calcium carbonate (CaCO ₃ ), 0.01 to 100 parts by weight of scrap, and a pigment.

The back layer 11 balances the flooring material, improves the back surface, and improves adhesion during construction. The back layer 11 is 100 parts by weight of polyvinyl chloride having a degree of polymerization of 1000 to 1700, 30 to 60 parts by weight of plasticizer DOP, 0.01 to 50 parts by weight of nitrile butadiene rubber or styrene butadiene rubber, 1 to 3 parts by weight of epoxy resin (ESO). Parts, 2 to 6 parts by weight of barium-zinc stabilizer, 1 to 3 parts by weight of organic compound lubricant ethylenebisstearylamide, 2 to 5 parts by weight of a mixture of methyl methacrylate and butyl acrylate, calcium carbonate (CaCO ₃ ) 0.01 to 100 parts by weight, and may include polyester plain weave or polyester nonwoven.

In another aspect, the present invention provides a method of manufacturing the floor decoration material.

Each layer included in the flooring material of the present invention is manufactured by a calendering method except for the dimension reinforcing layer (7). Figure 3 shows a manufacturing process diagram of the flooring material using a calendering method, the manufacturing process is largely composed of a raw material mixing step, a kneading step of uniformly gelling by heating and pressing the mixed raw material, dyeing and winding process.

In order to produce each layer of flooring, first, each liquid and powder raw material is evenly mixed and dispersed by a super mixer. The evenly mixed raw materials are kneaded with screws in a Banbury mixer at 100 to 150 ° C. The kneaded raw materials are first mixed and secondly mixed in two rolls at 100 to 150 ° C., respectively, and a sheet having a thickness of 0.1 to 1.0 mm is produced by using a calender. In the case of the interlayer 3, which requires printing, a pattern is printed on a manufactured sheet of interlayer 3 by gravure, screen, or transfer printing.

Each of the prepared layers were laminated in order, passed through a heating drum of a foaming machine at 80 to 170 ° C., and thermally laminated in embossing rolls, and 1 to 1 at a speed of 5 to 18 m / min under 200 to 250 ° C. Pass through the foaming oven for 3 minutes to cure and foam the treatment.

Hereinafter, the present invention will be described in more detail with reference to the following examples. However, an Example is for illustrating this invention and this invention is not limited only to these.

Example 1

Each layer except the dimensional reinforcing layer 7 was prepared by a calendering method.

(Back layer production)

In order to manufacture the back layer 11, 100 parts by weight of polyvinyl chloride having a polymerization degree of 1000, 31 parts by weight of plasticizer dioctylphthalate, 22 parts by weight of nitrile butadiene rubber, 3 parts by weight of epoxy resin, 3 parts by weight of barium-zinc stabilizer, organic 2.5 parts by weight of the composite lubricant ethylenebisstearylamide, 3 parts by weight of the mixture of the processing aid methacrylate and butyl acrylate, and 60 parts by weight of calcium carbonate were evenly mixed in a supermixer. The mixture was kneaded at 150 [deg.] C. in a half-barrier mixer and then mixed firstly and secondly in a two roll at 150 [deg.] C. The mixture was made into a 0.2 mm thick sheet using a calender.

(Production of Elastic Foam Layer)

Elastic foam layer 10 was also prepared in the same manner as the back layer 10 except for the composition and content of the raw material. As the raw material of the elastic foam layer 10, 100 parts by weight of polyvinyl chloride having a degree of polymerization of 1000, 25 parts by weight of nitrile butadiene rubber, 60 parts by weight of dioctylphthalate, 3 parts by weight of barium-zinc stabilizer, 4.4 parts by weight of azodicarbonamide 30 parts by weight of calcium carbonate and 0.06 parts by weight of pigment were used.

(Manufacture of middle layer)

The stop layer 9 was also prepared in the same manner as the back layer 10 except for the composition and content of the raw material. As a raw material of the stop layer 9, 100 parts by weight of polyvinyl chloride having a degree of polymerization of 1000, 50 parts by weight of dioctylphthalate, 2 parts by weight of epoxy resin, 3 parts by weight of barium-zinc stabilizer, 2.5 parts by weight of ethylenebisstearylamine, 3 parts by weight of a mixture of methyl methacrylate and butyl acrylate and 130 parts by weight of calcium carbonate were used.

(Manufacture of Dimension Reinforcement Layer)

As a raw material for the dimensional reinforcing layer 7, 100 parts by weight of polyvinyl chloride having a polymerization degree of 1200, 65 parts by weight of dioctylphthalate, 2 parts by weight of epoxy resin, 2 parts by weight of barium-zinc stabilizer, and 10 parts by weight of calcium carbonate were used. The raw materials were mixed to impregnate the glass fiber to prepare a dimensional reinforcement layer (7).

(Manufacture of reinforcing layer)

The reinforcement layer 4 was manufactured by the same method as the back layer 10 except for the composition and content of the raw material. As a raw material of the reinforcing layer 4, 100 parts by weight of polyvinyl chloride having a degree of polymerization of 1000, 50 parts by weight of dioctylphthalate, 2 parts by weight of epoxy resin, 3 parts by weight of barium-zinc stabilizer, 2.5 parts by weight of organic complex ethylenebisstearylamide 3 parts by weight of a mixture of methyl methacrylate and butyl acrylate and 130 parts by weight of calcium carbonate were used.

(Production of Icebreaker Layer)

The interlayer layer 3 was also prepared in the same manner as the back layer 10 except for the composition and the content of the raw material. As a raw material of the interlayer 3, 100 parts by weight of polyvinyl chloride having a degree of polymerization of 1000, 45 parts by weight of dioctylphthalate, 2 parts by weight of epoxy resin, 3.5 parts by weight of barium-zinc stabilizer, organic compound ethylene bisstearylamide 2.5 Parts by weight, 2.5 parts by weight of a mixture of methyl methacrylate and butyl acrylate, and 120 parts by weight of calcium carbonate were used. The pattern was printed by gravure printing on the sheet of the interlayer (3).

(Manufacture of Cover Layer)

The label layer 2 was also prepared in the same manner as the back layer 10 except for the composition and the content of the raw material. As a raw material for the label layer 2, 100 parts by weight of polyvinyl chloride having a degree of polymerization of 1000, 36 parts by weight of dioctylphthalate, 2 parts by weight of epoxy resin, and 3 parts by weight of barium-zinc stabilizer were used.

(Production of Surface Treatment Layer)

The prepared cover layer sheet was surface treated by gravure printing with a thermosetting polyurethane in a printing machine, and then dried for 30 seconds at a speed of 20 m / min.

(Lamination and foaming process)

Each of the prepared layers were laminated in order, passed through a heating drum at 100-170 ° C. in a foaming machine, and passed through an embossing roll to be thermally laminated, and passed through a foam oven at 230 ° C. at a speed of 10 m / min. The treatment was cured for 1 minute 30 seconds and foamed.

Example 2

Each layer except for the glass cream was prepared in the same manner as in Example 1. Since the glass cream is made of a lattice and does not require impregnation, and the reinforcing layer 4 and the stopping layer 9 are laminated between the lattice, the glass cream is positioned between the reinforcing layer 4 and the stopping layer 9.

Each layer was passed through a 230 ° C. foam oven at a rate of 10 m / min to cure and foam for 1 minute 30 seconds.

Example 3

The same procedure as in Example 1 was carried out except that the surface treatment layer 1 was formed by treating photocurable polyurethane on the cover layer 2.

Example 4

(Indentation strain residual experiment)

Specimen of the conventional floor decoration material based on polyvinyl chloride foam (PVC foam) and the floor decoration material containing the elastic foam layer of Example 1 were taken and the strains were compared. The experiment was press-fitted the specimens for 5 minutes with a steel rod 19 mm in diameter and 22.7 kg in weight according to KS M3802 (standard 20% or less) and left for 1 hour. The flooring material of the PVC substrate which does not contain the conventional elastic foam layer has a strain of 20.5%, while the flooring material of Example 1 has a strain of 2.6%.

(Rebound elasticity experiment)

The resilience of the conventional flooring material based on polyvinyl chloride foam (PVC foam) and the flooring material containing the elastic foam layer of Example 1 were taken and compared. The experiment measured the height of free fall of the steel bar of diameter 12.7 mm and weight 350 g in accordance with KS M6518 to the specimen at a height of 100 mm. As a result of measurement, the flooring material of the PVC substrate which does not contain the conventional elastic foam layer was 33 cm, while the flooring material of Example 1 was 38 cm higher than the conventional one.

As such, it can be seen that the elastic flooring material of the present invention has superior restoring force and elasticity than conventional polyvinyl chloride materials.

The flooring material of the present invention not only improves the walking feeling and cushioning effect of the flooring material of the conventional flooring material, but also has excellent sound absorption, restoring force, cushioning property and elasticity.

Claims (6)

A plurality of laminated synthetic resin floor coverings, a) polyvinyl chloride (PVC); And b) rubber Flooring material comprising an elastic foam layer containing a base. The method of claim 1, The elastic foam layer a) 100 parts by weight of polyvinyl chloride having a degree of polymerization of 1000 to 1700; And b) 10 to 50 parts by weight of nitrile butadiene rubber, or styrene butadiene rubber Flooring material comprising a. The method of claim 1, The elastic foam layer a) 100 parts by weight of polyvinyl chloride having a degree of polymerization of 1000 to 1700; b) 10 to 50 parts by weight of nitrile butadiene rubber, or styrene butadiene rubber; c) 50 to 100 parts by weight of plasticizer; d) 2 to 5 parts by weight of a foam stabilizer; And e) 2 to 5 parts by weight of blowing agent Flooring material comprising a. The method of claim 3, wherein The elastic foam layer a) 0.01 to 80 parts by weight of calcium carbonate; b) 0.01 to 100 parts by weight of scrap; And c) 0.01 to 10 parts by weight of pigment Flooring material further comprising at least one additive selected from the group consisting of. In the manufacturing method of the polyvinyl chloride-based flooring material excellent in elasticity, a) polyvinyl chloride; And Ii) rubber Preparing an elastic foam layer containing; b) providing a surface treatment layer, a label layer, an interlayer, a reinforcement layer, a dimension reinforcement layer, and a middle layer; step; c) each of the layers from above, the surface treatment layer, the label layer, the interlayer, Stacking in the order of the dimension reinforcing layer, the stopping layer, and the elastic foaming layer; d) injecting the laminated layers into a foamer for aging and foaming; And e) thermolysing the foamed layers in an embossing roll Polyvinyl chloride-based flooring manufacturing method comprising a. The method of claim 5, The elastic foam layer V) a) 100 parts by weight of polyvinyl chloride having a degree of polymerization of 1000 to 1700; B) 10 to 50 parts by weight of nitrile butadiene rubber or styrene butadiene rubber; C) 50 to 100 parts by weight of plasticizer; D) 2 to 5 parts by weight of a foam stabilizer; And ㅁ) 2 to 5 parts by weight of blowing agent Mixing the elastic foam layer composition comprising a supermixer; Ii) kneading the mixture of step iii) in a half-barrier mixer; And Iii) calendering the kneaded product of step ii) in a calendar Method of producing a polyvinyl chloride-based flooring material prepared by a method comprising a.