JP3209414U - Adsorbent cushion floor - Google Patents

Abstract

The present invention provides an adsorptive cushion floor which can be manufactured in a long sheet shape even with an adsorptive cushion floor using vinyl chloride and which does not generate hydrogen chloride gas during the manufacturing process. A base material layer made of glass fiber mixed paper, a vinyl chloride foamed resin layer formed on the base material layer, a printing layer formed thereon, and a vinyl chloride formed thereon. This is solved by an adsorbent cushion floor 1 comprising a transparent resin layer and an acrylic resin layer 30 adhered under the base material layer 10 and formed in a long sheet shape. [Selection] Figure 1

Description

  The present invention relates to an absorptive cushion floor that can be manufactured in the form of a long sheet.

  The adsorptive cushion floor is also called an adsorptive flooring and refers to a sheet-like flooring made of vinyl and having cushioning properties. The backing material is a non-woven fabric or vinyl layer, with a foam layer in the middle and a transparent vinyl on the surface. The standard thickness is about 2mm, and the thicker is about 4mm. If you make irregularities by processing, you can express wood grain or stone grain, cheaper than plywood flooring, may be wet with water, easy to clean, easy to clean, even if you drop an object Since it has the advantage that it does not resonate with the lower floors, it is widely used as a flooring material for houses and stores.

  The adsorbent cushion floor includes, for example, a base material that is one of composition and homogeneous vinyl floor tiles, and a foam layer laminated on the base material, and the foam layer is an acrylic heavy layer. A cushion floor made of a coalescence and having an adsorptive property is known (Patent Document 1).

JP 2003-56167 A

  Conventionally, floor materials using vinyl chloride on the surface have been attached to the floor using an adhesive on the back surface of the base material layer. However, when sticking to the floor using an adhesive, it was necessary to leave the adherend coated on both sides for 5 to 10 minutes until stickiness was obtained, which caused work delays. When a solvent-based adhesive is used, the adherend must be allowed to stand for 5 to 10 minutes until the solvent is volatilized, and there is a concern that the organic solvent may affect the human body. Furthermore, when the floor material is replaced, it is necessary to perform a peeling operation or an operation for removing the adhesive remaining on the base, which is a heavy burden on the operator.

  Therefore, an adsorptive cushion floor in which an adhesive layer using an acrylic resin is previously formed on the back surface of the base material layer has been proposed. The adhesive layer made of acrylic resin can be applied to the floor as soon as the release paper is peeled off at the time of work, and the adhesive layer does not remain on the floor even when the cushion floor is peeled off from the floor during re-covering Due to its high convenience, it has been spreading rapidly in recent years.

  Here, the adsorbent cushion floor manufactured in the form of a long sheet requires a heating step in order to form a foam layer for imparting adsorbability and to impart curability to the acrylic resin. However, when trying to produce an absorbent cushion floor using vinyl chloride on the surface, the vinyl chloride is denatured at 60 ° C and the surface-treated vinyl chloride portion melts and loses its gloss. There was a problem that it was stuck to the surface, making it difficult to peel off and becoming a product. In addition, since hydrogen chloride gas is generated during heating, there are concerns about the effects on the human body and the environment.

  Accordingly, an object of the present invention is to provide an adsorptive cushion floor that can be produced in a long sheet shape even if it is an adsorbent cushion floor using vinyl chloride and that does not generate hydrogen chloride gas during the manufacturing process. It is in.

  As a result of examining the materials used for the adsorptive cushion floor and the heating conditions of the manufacturing process in order to solve the above-mentioned problems, the present inventors manufactured an adsorptive cushion floor using vinyl chloride, which has been difficult to manufacture. I got the knowledge that it is possible.

  The present invention has been made based on such knowledge, and includes a base material layer, a vinyl chloride resin layer formed on the base material layer, and an acrylic resin layer adhered under the base material layer. An adsorbent cushion floor is provided.

  According to the adsorbent cushion floor of the present invention, an adsorbent cushion floor that can be produced in a long sheet shape even using vinyl chloride and does not generate hydrogen chloride gas during the manufacturing process is provided. be able to.

It is sectional drawing of the adsorptive cushion floor 1 which concerns on this invention.

  FIG. 1 is a sectional view of an adsorptive cushion floor 1 according to the present invention. The adsorptive cushion floor 1 according to the present invention includes a base material layer 10, a vinyl chloride resin layer 20 formed on the base material layer 10, and an acrylic resin layer 30 adhered under the base material layer 10. I have.

  As long as the base material layer 10 is a material used for the base material layer of a well-known cushion floor, any material can be used. Examples thereof include glass fiber mixed paper, glass fiber nonwoven fabric, rock wool paper, pulp paper, woven fabric such as synthetic fiber, and nonwoven fabric. In particular, glass fiber mixed paper is preferable from the viewpoints of characteristics such as heat resistance, flexibility, workability, and cost. If a material with little elasticity due to temperature difference is used as the material of the base material layer 10, the flexibility of the resulting absorbent cushion floor will not be greatly influenced by the temperature, and there will be inconvenience of curling on the front and back surfaces Less.

  Although the thickness of the base material layer 10 can be set suitably, it is preferable that it is 100-400 micrometers, for example, it is more preferable that it is 200-300 micrometers, and it is more preferable that it is 240-320 micrometers.

  The vinyl chloride resin layer 20 includes a vinyl chloride foam resin layer 22, a printing layer 24, and a vinyl chloride transparent resin layer 26 from the base material layer 10 to the surface layer.

  The composition of the vinyl chloride foamed resin layer 22 contains a vinyl chloride resin, a plasticizer, a stabilizer, a foaming agent, a filler, a colorant, and commonly used additives. Polyvinyl chloride resins include vinyl chloride copolymers, such as copolymers of vinyl chloride and ethylene, vinyl acetate, acrylic, urethane, etc., as well as blends with other polymers. Therefore, a polymerization degree of 800 to 3000 is preferable. A void is formed by foaming 3 to 5 times by heat treatment, and absorbs an impact during walking by a pedestrian.

  As the plasticizer, commonly used plasticizers can be used. Typical examples include phthalate esters such as dioctyl phthalate and butylbenzyl phthalate, dioctyl adipate fatty acid ester, and tricresyl. Examples include phosphate esters such as phosphates, other trimellitic acid esters, epoxy soybean oils, benzoic acids, and polyester polymer plasticizers.

  The addition amount of the plasticizer can be in the range of 30 to 100 parts by weight with respect to 100 parts by weight of the vinyl chloride resin. However, if the amount of the plasticizer is large, the chemical embossing effect deteriorates, so preferably 40 to 60. Good weight range. Moreover, there is no problem even if a diluent, a secondary plasticizer, a viscosity lowering agent, or the like is appropriately used as the viscosity modifier.

  Any stabilizer can be used as long as it is usually used for vinyl chloride resins. As an example, metallic stabilizers such as zinc, barium, calcium and tin, organic phosphorus compounds, epoxy compounds and the like can be used alone or in combination of two or more. The addition amount of the stabilizer is preferably 0.5 to 5 parts by weight with respect to 100 parts by weight of the vinyl chloride resin.

  As the foaming agent, commonly used ones can be used, and among them, thermal decomposition type organic foaming agents such as azodicarbonamide, oxybisbenzenesulfonyl hydrazide, benzenesulfonyl hydrazide, p-toluenesulphonyl diazide are preferable. . The addition amount is preferably 0.5 to 5 parts by weight with respect to 100 parts by weight of the vinyl chloride resin. In order to accelerate the decomposition of the foaming agent, a zinc-based foaming aid such as zinc oxide or an organic zinc compound can also be added as a stabilizer.

  As the filler, not only spherical particles but also flaky and fibrous materials can be used, but those that do not undergo physical or chemical changes upon heating are desirable, such as calcium carbonate, magnesium carbonate, clay, aluminum hydroxide, Inorganic fillers such as glass particles and shirasu balloons, or organic fillers such as powdered fiber, wood powder and cork powder can be used. The amount of these fillers added is preferably 50 parts by weight or less with respect to 100 parts by weight of the vinyl chloride resin.

  As the foaming inhibitor, commonly used inhibitors such as trimellitic anhydride, maleic anhydride, fumaric acid, benzotriazole, and aminotriazole can be used. The amount of the foaming inhibitor added is 1 to 30 parts by weight, preferably 10 to 20 parts by weight, based on 100 parts by weight of the vinyl chloride resin. When the amount is less than 10 parts by weight, the unevenness is not remarkably exhibited, and when the amount is 20 parts by weight or more, the inhibitory effect may not increase in proportion to the amount added in comparison with the range of 10 to 20 parts by weight.

  Although the thickness of the vinyl chloride foamed resin layer 22 can be set as appropriate, it is preferably 0.5 to 3 mm, more preferably 1 to 2 mm, from the viewpoint of imparting cushioning properties to the flooring. More preferably, it is 1.2 to 1.6 mm.

  The printed layer 24 imparts design properties to the floor material, and a solid pattern or a pattern such as a pattern that conceals the ground color of the vinyl chloride foamed resin layer 22 is printed thereon. Examples of patterns to be printed include, for example, a stone pattern simulating the surface of a rock such as a wood grain pattern or a marble pattern, a fabric pattern simulating a texture or cloth-like pattern, a tiled pattern, a brickwork pattern, etc. It is also possible to print patterns such as parquets, patchwork, etc. that combine these. As a method for forming the printing layer 24, for example, any printing method such as an offset printing method, a gravure printing method, a relief printing method, an intaglio printing method, a flexographic printing method, a screen printing method, or an arbitrary method may be used. Of these, the gravure printing method, which has a wide range of ink printing suitability and easy, is most preferable. The ink used is a printing ink such as oil-based ink, water-based ink, alcohol-based ink.

Since the vinyl chloride transparent resin layer 26 constitutes the uppermost layer (surface layer) of the adsorptive cushion floor 1 and is a place that can be directly stepped on by pedestrians, the degree of polymerization is increased so as to increase wear resistance. It is formed of 1000 to 3000 vinyl chloride resin. As the material, a polyvinyl chloride resin obtained by adding a stabilizer to polyvinyl chloride plastisol is used. As the stabilizer for transparency, commonly used composite stabilizers such as calcium-based, zinc-based and barium-based are used, and the amount added is 0.5 to 5.0 weight with respect to 100 parts by weight of the vinyl chloride resin. Part.
Although the thickness of the vinyl chloride transparent resin layer 26 can be appropriately set, it is preferably 50 to 250 μm, more preferably 70 to 200 μm, and further preferably 100 to 150 μm.

  The vinyl chloride transparent resin layer 26 preferably contains a flame retardant. By substituting a part with a flame retardant plasticizer, flame retardant properties can be obtained without losing transparency, and a transparent vinyl chloride resin layer satisfying weather resistance at the same time can be obtained.

  As a plasticizer contained in the vinyl chloride transparent resin layer 26, a normal plasticizer applied to a vinyl chloride resin can be used. For example, phosphoric acid triphenyl ester (TPP), phosphoric acid cresyl phenyl ester (CDP) ), Phosphoric acid diphenyl isopropylphenyl ester, phosphoric acid tri-2-ethylhexyl ester (TOP), phosphoric acid octyl diphenyl ester, phosphoric acid isodecyl diphenyl ester, etc., phosphoric acid esters, phosphoric acid trisdichloropropyl ester, phosphorous Examples include halogen-containing phosphate esters such as acid trisbromochloropropyl ester and those substituted with halogen-containing plasticizers such as chlorinated paraffin.

  The acrylic resin layer 30 is prepared by injecting air or an inert gas into an emulsion containing an acrylic polymer to prepare a gas-liquid mixture, and then applying the gas-liquid mixture to the back surface of the base material layer. It can be manufactured by thickening and then heating and curing. The acrylic resin layer 30 formed in this way gives an adsorbing effect to the floor surface of the adsorbent cushion floor, so that it can be immediately applied to the floor surface without separately applying an adhesive during work, Even when the adsorptive cushion floor is peeled off from the floor surface, the adhesive layer hardly remains on the floor surface.

  The acrylic resin layer 30 can be formed on the entire back surface of the base material layer 10, but in consideration of peelability at the time of re-stretching, as shown in FIG. It is preferable to form. The thickness of the acrylic resin layer 30 is preferably 100 to 1000 μm, and more preferably 500 to 1000 μm.

  A release sheet 40 is preferably attached below the acrylic resin layer 30 in order to maintain adhesiveness. As the release sheet 40, for example, a polyethylene film having a thickness of 10 to 30 μm can be used. By removing the release sheet 40 during operation, the adsorbent cushion floor 1 can be easily attached to the floor surface. In addition, a commercial item can also be utilized for the peeling sheet 40, for example, Raditex EX-7629 (made by Higashi Chemical Co., Ltd.) etc. can be mentioned.

  The adsorptive cushion floor 1 of this embodiment can be formed in a long sheet shape of 1 m × 20 m, for example. Conventionally, when an attempt is made to form a floor material having a vinyl chloride resin layer and an acrylic resin layer into a long sheet, the acrylic resin is thermosetting, so that it does not cure unless it is heated. The resin was thermally denatured, and it was difficult to peel off after the vinyl chloride resin layer was melted and wound up. On the other hand, the absorptive cushion floor 1 of the present embodiment can solve the above problems by the following manufacturing method.

  The manufacturing of the adsorptive cushion floor 1 of the present embodiment is large, and the adsorbing cushion floor manufacturing process for forming the base material layer 10 and the vinyl chloride resin layer 20 and the adsorption processing process for forming the acrylic resin layer 30 and the release sheet 40 are performed. Can be divided into Hereinafter, an example of the manufacturing method of the adsorptive cushion floor 1 of this embodiment is demonstrated.

  In the adsorbent cushion floor manufacturing process, first, a resin paste is prepared by mixing a composition (polymerization degree: 800 to 3000) such as a vinyl chloride resin used as a raw material of the vinyl chloride foam resin layer 22 and a plasticizer. The resin paste is applied to a glass fiber mixed paper or the like that is a raw material of the base material layer 10 using a coating machine such as a BC coater, thereby forming a sheet made of the base material layer 10 and the resin paste layer. Thereafter, the resin paste is gelled at 180 to 220 ° C. in a drying furnace.

  Next, the sheet | seat which consists of the base material layer 10 and the resin paste layer is conveyed to a printing unit, and the printing layer which gave the desired design is formed in the surface of the gelatinized resin paste layer.

  A vinyl chloride transparent resin is applied to the surface of the printed layer using a coating machine such as a TC coater. And the sheet | seat is transferred to a foaming furnace, and the vinyl chloride foaming resin layer 22 in which the resin paste layer foamed 3-5 times is formed by heat-processing here on the conditions of 200-240 degreeC and 100-140 second. Is done. As a result, an adsorptive cushion floor including the base material layer 10, the vinyl chloride foamed resin layer 22, the printing layer 24, and the vinyl chloride transparent resin layer 26 is manufactured.

  Thereafter, the adsorbent cushion floor is cooled, wound with a roller or the like, and subjected to the next adsorption processing step.

  In the adsorption processing step, first, an acrylic resin is applied to the base material layer 10 by a coating machine. The acrylic resin can be applied to the entire back surface of the base material layer 10, but in consideration of the peelability at the time of re-stretching, it is formed in a linear or dot shape on the back surface of the base material layer 10 as shown in FIG. It is preferable. Next, it is dried by a dryer under conditions of 130 to 140 ° C. and 3.0 to 4.0 m / min. Under such drying conditions, the acrylic resin layer 30 can be formed on the adsorptive cushion floor without heating and deteriorating the vinyl chloride resin layer 20. Then, a sheet | seat is cut | disconnected to a desired width | variety, a peeling film is stuck on the acrylic resin layer 30, and a desired absorptive cushion floor sheet is manufactured by winding up a sheet | seat with a roller.

DESCRIPTION OF SYMBOLS 1 ... Adsorbent cushion floor 10 ... Base material layer 20 ... Vinyl chloride resin layer 22 ... Vinyl chloride foamed resin layer 24 ... Print layer 26 ... Vinyl chloride transparent resin layer 30 ... Acrylic resin layer 40 ... Release layer

Claims (5)

A base material layer;
A vinyl chloride resin layer formed on the substrate layer;
An acrylic resin layer adhered under the base material layer;
Adsorbent cushion floor with.   The absorptive cushion floor according to claim 1, wherein the vinyl chloride resin layer is formed of a vinyl chloride foam resin layer, a printing layer, and a vinyl chloride transparent resin layer.   The absorptive cushion floor according to claim 1 or 2 in which said substrate layer consists of glass fiber mixed paper.   The adsorptive cushion floor of any one of Claims 1-3 provided with the peeling sheet under the said acrylic resin layer.   The absorptive cushion floor of any one of Claims 1-4 formed in the elongate sheet form.