JPS62137019A - Tile carpet - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a tile carpet as a flooring material for stores, offices, residences, etc.

[Prior art]

Various structures have been proposed for carpet tiles used as floor covering materials, depending on the place where they are used, such as stores, offices, and residences, as well as the type of business, but in general, fiber materials are used. The basic structure is to include an upper surface layer made of aluminum and a backing layer laminated on the back side of the upper surface layer. Emphasis is placed on the functions of giving carpet tiles appropriate thickness and strength, anti-slip properties on floors, and heat resistance. Therefore, the upper surface layer is natural fiber 1
Consideration has been taken to use one or more types of synthetic fibers or semi-synthetic fibers, and to mix these with glass fibers, carbon fibers, or metal fibers, and to use a large amount of bitumen-based or polyvinyl chloride-based materials for the backing layer. There is.

[Problem that the invention seeks to solve]

However, the polyvinyl chloride-based hashing material used as the backing layer of tile carpets, and the glass fiber layer that is laminated to the backing layer for dimensional stability, have poor dimensional stability, heat resistance, and load resistance. However, due to the high density of polyvinyl chloride itself and the high content of fillers, the weight increases, resulting in a decrease in ease of transportation and construction, which is the main factor of tile carpeno. However, since the backing layer was hard, it had the disadvantage of lacking cushioning properties.

Therefore, attempts have been made to form a foam layer on the backing layer to eliminate the above drawbacks. However, if the backing layer is simply formed from a foam layer,
Even if it is possible to give the tile carpen 1-strength (load-bearing capacity) 1-dimensional stability, anti-slip properties, and durability, even if it is possible to give it lightness (transportability) and cushioning properties. . Therefore, the present invention provides a foamed backing layer with a glass fiber cloth that supports the foamed layer from below, and a non-foamed/! ! ! By stacking the layers on the backing layer, the above-mentioned contradictions can be resolved, and in particular, by setting the respective compounding ratios of the foam layer and the non-foam layer that supports it to the most appropriate values, it is possible to achieve practical use. The aim is to provide carpet tiles that are rich in sex.

[Means to solve the problem]

The present invention is roughly divided into an upper surface layer made of a fiber material and a backing layer laminated on the back side of the upper surface layer, and further, the backing layer is made of glass between a foamed layer as an upper layer and a non-foamed layer as a lower layer. The foamed layer is laminated with a fiber cloth interposed therebetween, and the foamed layer contains 40 to 120 parts by weight of a plasticizer, 0 to 100 parts by weight of an inorganic filler, and 2 to 4 parts by weight of a liquid stabilizer, based on 100 parts by weight of polyvinyl chloride.
Vehicle quantity department.

It is formed by flowing compressed air into a paste sol containing 1 to 8 parts by weight of a silicon foaming agent and mechanically foaming it to a size of 1.5 to 4 times.
The tile carpet is characterized by containing 300 to 500 parts by weight of an inorganic filler per 00 parts by weight.

[For production]

According to the above means, the foam layer in the backing layer is made of fiber material.
1- Guarantees the lightness and cushioning properties of the tile carpet itself in conjunction with the surface layer, improving the IM of the tile carpet,
Not only is it easy to install, it also provides a soft feel when stepping on it, and by interposing a glass fiber layer under the foam layer, the thickness of the foam layer is made uniform when forming the foam layer, which improves the carpet surface. Prevents the occurrence of unevenness,
Can be molded into a flat, walkable surface. Furthermore, the non-foamed layer at the bottom of the backing layer serves as the base layer for the entire carpet tile, giving the carpet appropriate strength and heat resistance, extending its lifespan, and maintaining good adhesion to the floor surface, making it easy to remove the carpet. to prevent

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a cross-sectional view of a tile carpet of the present invention obtained by the manufacturing method shown in FIG. 2, and is composed of an upper surface layer A and a backing layer B made of a fiber material.

In addition to the tufted carpet shown in the drawing, the upper surface layer A includes
Needle punch carpet, Wilton carpet, Niso carpet, etc. In this embodiment, the pile type 3 is sewn to the first base fabric 2, and is lined with a precoat layer 4 to prevent the pile type from being pulled out. This prevents the threads of the 1-piece base fabric from tangling.

Further, this precoat layer 4 is formed by, for example, polyvinyl chloride-EVA emulsion lining processing or the like in order to improve the adhesion with the polyvinyl chloride foam layer 5 described below.

As long as the upper surface layer A is made of a fiber material, there are no particular limitations on its structure or shape, and the types of fibers include natural fibers, 2 synthetic fibers, and semi-synthetic fibers.

In addition to being selected from other well-known fibers according to the purpose,
The mixed use of glass fiber, carbon fiber, and metal fiber is not prohibited.

The backing layer 2 includes a polyvinyl chloride foam layer 5 from the top to the bottom. Glass fiber cloth6. and non-foamed layer 7 are laminated.

According to experiments, the polyvinyl chloride foam layer 5 contains 40 to 40 parts by weight of plasticizer per 100 parts by weight of polyvinyl chloride paste resin.
Quantitatively inject compressed air into a paste sol containing 120 parts by weight of inorganic filler, 0 to 100 parts of inorganic filler, 1 to 8 parts by weight of silicon foaming agent, and 1 to 4 parts of heat stabilizer according to the expansion ratio. It is preferable that the material is injected into the foam and mechanically expanded to 1.5 to 4 times the size, and has a density of 0.3 to 0.8 g/c+1.
Coated to a thickness of 511 mm. According to the above-mentioned compounding ratio, the foam layer 5 exhibits good functions for the tile carpet, especially in terms of cushioning properties and heat insulation properties, and also appropriately reduces the weight of the tile carpet.

The glass fiber layer 6 is formed during molding of the polyvinyl chloride foam layer 5.
It functions to keep the dimensions, that is, the thickness, uniform throughout, and both woven and non-woven fabrics can be used, but 30 = 100 g is particularly inexpensive and has excellent dimensional stability effects.
The use of non-woven fabrics with a weight of /rd is preferred.

Furthermore, according to experiments, the polyvinyl chloride non-foamed layer 7 is formed by blending 300 to 500 parts by weight of an inorganic filler to 100 parts by weight of polyvinyl chloride to a thickness of 0.5 to 1.5 mm. It is preferable to do so. According to the above-mentioned compounding ratio, the non-foamed layer 7 particularly enhances the strength of the tile carpet and exhibits a remarkable effect in eliminating plastic deformation of the polyvinyl chloride foam layer 5 due to impact loads.

Next, a second example of the method for manufacturing the tile carpet of the present invention will be described.
To explain with a diagram, the foaming sol for the polyvinyl chloride foam layer 5 is created by feeding the paste sol 5a adjusted to the above-mentioned mixing ratio into the oak mixer 8 using a metering pump (not shown). Compressed air 9 is injected and sheared and stirred by the fixed blades and rotating blades of the oak mixer 8.
This is done by dispersing air into the sol. Note that when the pace mill sol 5a is foamed, heat is generated in the oak mixer 8, and if the heat is excessive, there is a risk of gelation. It is necessary to sufficiently cool the mixing head of the oak mixer 8 with cold water, preferably with cooling water of 10° C. or lower.

On the other hand, when lining the carpet, there is an oven 10 in the middle.
An endless heald 11 coated with Teflon and having mold releasability is prepared, and the surface of this endless bell 1-11 is first coated with non-foamed paste silua a to a predetermined thickness using a doctor knife 12, and glass is coated on the -F. The fiber cloth 6 is fed out and laminated, and the foamed sol described above is supplied from the oak mixer 8 onto the glass fiber cloth 6 and coated with a doctor knife 13 to a predetermined thickness.

Then, after supplying and placing the carpet material (the above surface HA) on top of it, it is pressed with a press roller 14, and then passed through an oven 10 and heated to gel the non-foamed silua a and the foamed sol 5a, respectively. After melting, it is cooled and solidified. As a result, the tile carpet shown in FIG. 1 was obtained.

When coating with a foaming sol, it is easy to insert secondary air, and this air expands when heated, creating cavities, resulting in convex portions on the product surface. Therefore, the viscosity of the foaming sol was set to 20
,000 cps (BM type 4, 5 rpm) or less and select the foaming ratio, use a doctor knife 13 with a shape that can obtain a large shearing force on the sol, and insert secondary air. Prevention is essential.

〔effect〕

As detailed above, the tile carpet according to the present invention has the characteristics of light weight without sacrificing the advantages of the non-foamed polyvinyl chloride backing material such as dimensional stability, heat resistance, and anti-slip properties. In addition to reducing construction labor, it has also been possible to improve cushioning properties and provide comfortable walking. In addition, the presence of air within the foam layer improves the insulation properties and prevents the feet and lower back of occupants from getting cold when indoors during winter or when the air conditioner is in use.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an embodiment of a tile carpet according to the present invention, and FIG. 2 is a drawing showing an example of a manufacturing method thereof. A... Upper surface layer, B... Backing layer, 5... Polyvinyl chloride foam layer, 6... Glass fiber cloth, 7... Polyvinyl chloride non-foamed layer. Procedural amendment January 1986/Otsuji 1985 Patent Application No. 278825 2, Name of invention Tile Carpet 3, Relationship with the person making the amendment Case Applicant: 3-11-20 Minamisenba, Minami-ku, Osaka City Name: Suminoe Orimono Co., Ltd. Representative: 1 Gi 4, Agent: 3-41 Kitahama, Higashi-ku, Osaka Japan Bunka Kaikan Statement 6
Correct "Pile type" in the 3rd line and 4th to 5th lines of the page to "Pile thread" respectively.

Claims (1)

[Claims] (1) It is roughly divided into an upper surface layer using a fiber material and a backing layer laminated on the back side of this, and the backing layer is further divided into a glass fiber layer between a foam layer as an upper layer and a non-foam layer as a lower layer. The foam layer is laminated with cloth interposed therebetween, and the foamed layer contains 40 to 120 parts by weight of a plasticizer based on 100 parts by weight of polyvinyl chloride,
Compressed air is flowed into a paste sol containing 0 to 100 parts by weight of an inorganic filler, 2 to 4 parts by weight of a liquid stabilizer, and 1 to 8 parts by weight of a silicone foaming agent, and the mechanical strength is increased by 1.5 to 4 times. A tile carpet characterized in that the non-foamed layer contains 300 to 500 parts by weight of an inorganic filler per 100 parts by weight of polyvinyl chloride.