JPH0673189U - Glass paper seams - Google Patents

Abstract

(57) [Abstract] [Objective] To provide a seam of glass paper with sol compound impregnation characteristics. [Structure] A seam of glass paper bonded with a mesh-type tape made of heat-bonded yarn. [Effect] The sol compound can also be impregnated in the seam, and the final product can be obtained, improving the yield.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a seam in a rolled product of a glass paper used as an intermediate base fabric of a tile carpet, and in the process of manufacturing the tile carpet, a production loss is caused when the glass paper is impregnated with a sol compound. It concerns seams that do not occur.

[0002]

[Prior art]

 Conventional seams in rolled glass paper products that are used as intermediate base fabrics for tile carpets are made by abutting the edges of the glass paper and adhering them from both the front and back sides with adhesive tape, or from edge to edge. Were overlapped with each other and the overlapped portion was joined with a double-sided tape or an adhesive to form a seam.

However, since the adhesive tape, the double-sided tape, and the adhesive block the air permeability at this joint, when the glass paper is impregnated with the sol compound in the manufacturing process of the tile carpet, the joint part is impregnated with the sol compound. For this reason, the seam portion cannot be commercialized as a tile carpet, which causes a problem of reduced yield.

[0004]

[Problems to be solved by the device]

 The present invention eliminates the inconvenience that the sol compound does not penetrate into the seam part during the tile carpet manufacturing process because the air permeability is low at the seam in the conventional glass paper roll product, making it impossible to commercialize. The challenge is to improve the yield.

[0005]

[Means for Solving the Problems]

 The present invention is a seam of a glass paper, characterized in that a mesh-type tape containing a heat-fusible filament is used, and the tape is heat-fused at an adhesive surface with a glass paper. The details will be described below.

[0006] A mesh-type tape containing a heat fusion filament is, for example, a filament of an ethylene vinyl acetate copolymer having a melting point of 80 ° C. in a weft or a warp, and even if the tape is 100% of the filament, It may also be a mixture with other yarn. By using this mesh type tape, the air permeability of the seam part of the glass paper is not deteriorated and the sol compound impregnation property in the tile carpet manufacturing process is not impaired.

The sol compound impregnation process is performed by dropping glass paper on a sol coated on a temporary support, for example, a stainless belt, depositing the sheet in a sol layer, and then heat-gelling at 160 to 200 ° C. To do. After gelation, the coating solution provides strength. Therefore, the adhesive strength of the seam is sufficient if it is stronger than glass paper at room temperature.

The width of the mesh tape is determined by increasing or decreasing the adhesive area so that the normal adhesive strength of the joint portion is equal to or higher than the breaking strength of the glass paper.

As a seam bonding means, it is convenient that the melting point of the tape heat-sealing yarn is 160 ° C. or less so that the tape can be easily bonded by a heat press such as a household iron.

[0010]

[Action]

 The seam of the glass paper obtained by the present invention is line-bonded by using a mesh-type tape made of heat-sealing yarn, and the adhesive tape of the conventional method It is possible to obtain a seam which does not impair the sol impregnation property like the seam and maintains the adhesive strength.

[0011]

【Example】

 The present invention will be specifically described below with reference to Examples and Comparative Examples. The measurement items of the seam part are Frazier air permeability (according to JIS-L-1096), tensile strength (according to JIS-L-1085), and sol permeability. To evaluate the sol permeability, the sol for tile carpet was adjusted to a viscosity of 15000 mPa · sec, coated on a release paper to a thickness of 1 mm, and a glass paper was placed from above to make a visual determination. Was evaluated as ◯ if it was equivalent to the normal part, Δ if slightly inferior, and x if not permeated. The results are shown in Table 1.

Comparative Example 1 Chopped strand glass fiber (manufactured by Nippon Electric Glass Co., Ltd., fiber diameter 13 μm, fiber length 13 mm) 80 wt%, PVA (manufactured by Kuraray Co., Ltd.) 20 wt% as basis material 40 g / m ² , basis weight Paper was used. A double-sided tape (manufactured by Nitto Denko Corporation) was used, the double-sided tape was inserted between two glass papers, and a household iron at 150 ° C was lightly applied onto the glass papers. Four types of double-sided tape having widths of 10, 30, 50, and 100 mm were used.

Example 1 The same procedure as in Comparative Example 1 was carried out except that the double-sided tape was changed to a mesh tape made of filament of ethylene vinyl acetate copolymer having a melting point of 80 ° C. .

[0014]

[Table 1]

As is clear from Table 1, Comparative Example 1 has a Frazier air permeability of 0 cc / cm ² / sec and does not pass air. That is, the sol compound does not penetrate. In Example 1, the Frazier air permeability is 180 cc / cm ² / sec, which is a sufficient value for permeating the sol compound.

The adhesive portion tensile strength of Example 1 is inferior to that of Comparative Example 1. However, by increasing the tape width, it is possible to obtain the strength of breaking the paper.

[0017]

[Effect of device]

 When the glass paper roll product containing the glass paper seam of the present invention was used by a tile carpet manufacturer, there was no cutting at the seam part and the final product could be obtained without any problem in the impregnation property of the sol compound. It was

The seam of the glass paper of the present invention can obtain the final product in the tile carpet manufacturing process as in the normal part, and the yield is improved.

[Brief description of drawings]

FIG. 1 is a plan view of a mesh type tape including a heat-fusible filament.

FIG. 2 is a sectional view of a seam using a mesh type tape.

[Explanation of symbols]

 1 heat-fusible filament 2 filament 3 glass paper

Claims (1)

[Scope of utility model registration request] 1. A seam of sol-compound-impregnable glass paper, characterized in that a mesh-type tape containing a heat-fusible filament is joined by being heat-sealed on the surface of the tape that adheres to the glass paper. .