JPH11256118A - Double-sides adhesive tape for flooring material application, flooring material and flooring material application - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a double-sided adhesive tape meeting a specific requirement so as to obviate such conventional problems that, after a flooring material is applied, or when it is to be applied, to a flooring substrate, tiles get harder to peel off each other with the lapse of time, or the back surface of a flooring material needs to be treated so as to afford adhesive region and peelable region. SOLUTION: This double-sided adhesive tape is composed of a flooring material side tack agent layer 1, a base material 2 and a substrate side tack agent layer 3, and satisfies the following requirement: flooring material side tack agent layer strength>substrate side tack agent layer strength; and this adhesive tape is used when a flooring material is to be applied to a flooring substrate. Wherein, the substrate side tack agent layer strength means such an approximate range of tack strength that, when a flooring material adhesively fixed onto a substrate via a double-sided adhesive tape is peeled off, a tack agent layer is not left on the substrate surface (150-5,000 g/2.5 cm or so), while the flooring material side tack agent layer strength means such an approximate range of tack strength that a flooring material adhesively fixed onto a substrate can be peeled off the substrate (250-800 g/2.5 cm or so). The tack agent layer is pref. an acrylic emulsion-based one.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a double-sided pressure-sensitive adhesive tape for flooring, a flooring using the tape, and a flooring method using the double-sided pressure-sensitive adhesive tape or flooring.

[0002]

2. Description of the Related Art Before the present application, a carpet tile in which a double-sided adhesive tape is adhered to the back surface of a floor material, for example, a carpet tile, is known (Japanese Patent Publication No. 6-68205). However, this flooring has problems such that the tiles are less likely to peel off with the passage of time, and the back surface of the flooring must be treated with an adhesive area and a peelable area.

[0003]

SUMMARY OF THE INVENTION The present invention provides a double-sided pressure-sensitive adhesive tape for flooring work, which solves the problems of the prior art, a flooring using the tape, and a flooring using the double-sided pressure-sensitive adhesive tape or flooring. The aim is to provide a method.

[0004]

According to a first aspect of the present invention, a double-sided pressure-sensitive adhesive tape used for applying a floor material to a floor substrate satisfies the following requirements. To provide a double-sided pressure-sensitive adhesive tape. Floor material-side pressure-sensitive adhesive layer strength> Underground-side pressure-sensitive adhesive layer strength The underlayer-side pressure-sensitive adhesive layer strength refers to a floor material, such as a carpet tile, in which a floor material is adhered and fixed to a base material with the double-sided pressure-sensitive adhesive tape of the present invention. Peeling can be performed from the base, and the viscosity strength in a range that does not leave the pressure-sensitive adhesive layer on the base surface at the time of this peeling means the floor material side pressure-sensitive adhesive layer strength,
When the floor material adhered and fixed to the base material is peeled from the floor material base, the adhesive strength means a range in which the base-side pressure-sensitive adhesive layer can be peeled from the base material. The floor material side adhesive layer strength is usually 15
The strength of the base-side pressure-sensitive adhesive layer is usually about 250 to 800 g / 2.5 cm, and the strength of the base-side pressure-sensitive adhesive layer is 20 to 80% of the floor material-side pressure-sensitive adhesive layer strength. Are preferred. The measurement of the floor material-side pressure-sensitive adhesive layer strength and the base material-side pressure-sensitive adhesive layer strength was performed with a width of 2.5 c.
m, 20cm long double-sided adhesive tape as test material J
20 ° C. using a tensile tester specified in ISA5536,
180 at a tensile speed of 20 cm / min at RH 60%
゜ A peel test was performed to determine the maximum peel load.

A second aspect of the present invention provides a flooring characterized in that the first double-sided adhesive tape is adhered to one side of the flooring via an adhesive layer on the flooring side of the double-sided adhesive tape. Is to do. At this time, release paper is stuck to the pressure-sensitive adhesive layer on the base side, which is peeled off at the time of construction and adheres the floor material to the floor base. Therefore, the problem that the tiles are unlikely to peel off with time as in the above-described prior art is solved, and there is no possibility that the construction efficiency is reduced. According to a third aspect of the present invention, there is provided a flooring construction method for constructing a flooring on a floor base with a double-sided adhesive tape, wherein the first double-sided adhesive tape is used as the double-sided adhesive tape. Is to do. According to a fourth aspect of the present invention, there is provided a flooring construction method for constructing a flooring on a floor substrate with a double-sided adhesive tape, wherein the flooring according to the second aspect is used as the flooring. It is in.

The double-sided pressure-sensitive adhesive tape used in the present invention is based on a wide sheet of kraft paper, cloth (including nonwoven fabric), cellophane, vinyl, polyester, glass cloth, etc. The adhesive is applied and dried so as to satisfy the above-mentioned characteristics, and then the sheet is cut into an appropriate width, for example, about 2 to 5 cm, and is wound up in a roll shape with release paper therebetween. . Usually, the roll-shaped material can be used after being processed into an appropriate shape or size when a floor material is applied to a floor substrate. Also, by using a pressure-sensitive adhesive-permeable substrate, impregnating the pressure-sensitive adhesive from one side of the substrate on which the floor material-side pressure-sensitive adhesive layer is formed and adhering a larger amount of the pressure-sensitive adhesive to the side, the difference in adhesive strength is obtained. Can be provided.

The pressure-sensitive adhesive layer used in the present invention may be a rubber-based pressure-sensitive adhesive layer containing natural rubber, SBR, butyl rubber or the like as a main component, an acrylic pressure-sensitive adhesive (solvent type, emulsion type) layer or a hot-melt type pressure-sensitive adhesive. Layers, etc.,
Above all, an acrylic emulsion-based pressure-sensitive adhesive layer is preferable from the viewpoint of preventing contamination of an adherend on the environment.

[0008] The double-sided pressure-sensitive adhesive tape of the present invention can be used when a floor material is applied to a floor base instead of being provided in advance on the back surface of a floor material. When the floor material is stored or transported, the back surfaces of the floor materials are adhered to each other and adhere to each other, such as a floor material having a pressure-sensitive adhesive layer provided on the back surface in advance as in the known example. Since such a phenomenon does not occur, a plurality of flooring materials can be stored or transported in a single container with their back surfaces facing each other, and can be packed with their front and back surfaces facing each other. There are no restrictions. As a result, the flooring material is placed on the front side or the front side and the back side facing each other.
When stored or transported in one container, there is no need to use release paper or protective paper between the front surfaces or between the front and back surfaces. Further, since the double-sided pressure-sensitive adhesive tape of the present invention and the second flooring material using the double-sided pressure-sensitive adhesive tape have the property of flooring-side adhesive strength> base-side adhesive strength as described above, The adhesive layer of the double-sided pressure-sensitive adhesive tape does not remain on the floor substrate when peeled from the floor substrate.

As a method of constructing a floor material using the double-sided pressure-sensitive adhesive tape for floor material construction of the present invention, for example, in a construction site,
The roll-shaped material was cut into, for example, a linear shape, and the cut double-sided pressure-sensitive adhesive tape was used. However, the double-sided pressure-sensitive adhesive tape to be adhered to the floor substrate is not limited to the stripe shape, but may be a dotted line shape, a lattice shape, or the like. Examples of the floor material that can be constructed on the floor substrate according to the present invention include floor materials such as a floor-type plastic floor tile, in addition to carpet tiles. The thickness of the floor material-side pressure-sensitive adhesive layer and the underlayer-side pressure-sensitive adhesive layer of the double-sided pressure-sensitive adhesive tape may be the same or different, but the cost can be reduced by making the thicknesses of the two different. .

An embodiment of the present invention will be described below.

[0011]

EXAMPLES Example 1 A natural rubber-based pressure-sensitive adhesive containing natural rubber as a main component was applied to the floor material-side pressure-sensitive adhesive surface of a nonwoven fabric substrate. The adhesive strength of the coating layer based on the measurement test was 2000 g / 25 mm. A natural rubber-based adhesive having an adhesive strength of 400 g / 25 mm lower than the adhesive strength of the coating layer was applied to the coated surface of the substrate opposite to the coated surface to produce a double-sided adhesive tape.

Example 2 An acrylic polymer emulsion-type pressure-sensitive adhesive containing 2-ethylhexyl acrylate as a main copolymer component was applied to the floor-side pressure-sensitive adhesive surface of a polyester nonwoven fabric. This coating material penetrated the nonwoven fabric base material, and an adhesive layer was also formed on the floor-side adhesive surface opposite to the coating surface. The adhesive strengths of the floor material-side adhesive layer and the floor base material-side adhesive layer according to the above-described measuring methods were different from each other.

Example 3 A square carpet tile having a size of 50 × 50 cm and a base material of PVC was cut from a roll of double-sided adhesive tape of Example 1 into a linear shape having a size of 2 × 48 cm. It was stuck to the floor base using a thing. The above-mentioned cut double-sided pressure-sensitive adhesive tape was stuck on the floor material in a stripe shape at the center and both ends. When the carpet tile adhered to the floor substrate was peeled from the floor substrate, no pressure-sensitive adhesive layer remained on the floor substrate surface.

[0014]

[Effect] 1. Claims 1 and 3 Unlike a flooring material in which a double-sided adhesive tape is provided on the back surface in advance, by using a double-sided adhesive tape when applying the flooring material to the floor substrate, the back surfaces of the flooring material are bonded during transportation or storage. Since there is no possibility of sticking and peeling, there is no need to use release paper or protective paper, and construction costs can be reduced. In addition, since there is no need to apply adhesive to the floor, there is no need to apply and cure the adhesive.Furthermore, the floor material can be easily applied in a short time because the floor material is easily attached. it can. Further, since the adhesive layer of the double-sided adhesive tape material has the property of adhesive strength on the floor side> adhesive strength on the ground side, the adhesive layer remains on the ground surface when the floor material is peeled from the ground floor. do not do. 2. Claims 2 and 4 Since the operation of coating the adhesive on the floor is not required, the time for application and curing of the adhesive is not required, and the floor material can be easily adhered because the floor material is easily attached. Can be done. Further, since the adhesive layer of the double-sided adhesive tape material has the property of adhesive strength on the floor side> adhesive strength on the ground side, the adhesive layer remains on the ground surface when the floor material is peeled from the ground floor. do not do.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of a double-sided pressure-sensitive adhesive tape for flooring construction of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Floor material side adhesive layer 2 Base material 3 Base side adhesive layer

Claims (4)

[Claims] 1. A double-sided pressure-sensitive adhesive tape for flooring construction, wherein the double-sided pressure-sensitive adhesive tape used when the flooring is applied to a floor substrate satisfies the following requirements. Floor material-side pressure-sensitive adhesive layer strength> Base-side pressure-sensitive adhesive layer strength 2. The double-sided pressure-sensitive adhesive tape according to claim 1 is adhered to one side of a floor material via a pressure-sensitive adhesive layer on the floor material side of the double-sided pressure-sensitive adhesive tape, and a release paper is adhered to the base-side pressure-sensitive adhesive layer. Floor material characterized by being thing. 3. A method for constructing a floor material in which a floor material is constructed on a floor substrate with a double-sided pressure-sensitive adhesive tape, wherein the double-sided pressure-sensitive adhesive tape according to claim 1 is used as the double-sided pressure-sensitive adhesive tape. 4. A floor material construction method for constructing a floor material on a floor substrate with a double-sided adhesive tape, wherein the floor material according to claim 2 is used as the floor material.