JPH024151Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The invention relates to pile fabrics used for carpets, simple rugs, upholstery, etc. More specifically, pile yarns are tufted onto a base fabric and looped. This invention relates to a tufted pile fabric in which a pile is formed.

[Conventional technology]

Pile fabrics are made using looms, knitting machines, tufted machines, etc. The yarn that forms the pile is
It is required to have quality characteristics such as being bulky, strong and elastic, having a smooth surface that allows it to easily pass through heddles and needles, and having a tensile strength that does not cause thread breakage during the pile formation process.

To meet these requirements, spun yarns or filament yarns of crimpable fibers are used as pile yarns.

On the other hand, threads obtained by cutting cushioning foams such as rubber foam and urethane foam are
Although it foams in bulk and has excellent elasticity, it has an extremely high coefficient of friction and extremely low tensile strength, making it difficult to pass through heddles or needles, causing thread breakage and wear. Not used.

[Problem that the invention attempts to solve]

Crimpable fibers that compose spun yarns and filament yarns conventionally used as pile yarns include wool, rayon, acrylic fibers, polyester fibers, and nylon, but these are not completely elastic materials like rubber or polyurethane. Since it is a non-foamed material, the resulting pile gradually becomes flattened and loses its elastic recovery power after long-term use. Intervention measures are taken.

However, when pressing a pile fabric, the pile on the outside of the periphery of the pressing surface does not undergo any compressive strain; on the other hand, when pressing a sponge sheet, which is a cushioning foam, compressive strain also occurs on the outside of the periphery of the pressing surface. Therefore, the tactile texture due to the cushioning properties of the pile fabric and the sponge sheet are different, and therefore,
Even if a sponge sheet is laminated or interposed on the back surface, the cushioning properties inherent to the pile fabric cannot be improved.

In addition, when a sponge sheet is attached to the back side of the pile fabric, the pile fabric becomes thick and difficult to fold, making it impossible to use it as a simple rug. This is because simple rugs are most characterized by their ability to be folded, and rugs that cannot be folded extremely easily are no longer called simple rugs.

[Purpose of invention]

The main object of the present invention is to obtain a pile fabric having a pile excellent in elastic recovery force similar to a completely elastic sponge sheet.

Another object of the present invention is to obtain a simple rug with excellent cushioning properties.

Another object of the present invention is to achieve the above objects without sacrificing the quality or productivity of conventional pile fabrics.

[Structure of the idea]

The pile fabric 17 according to the present invention meets the above-mentioned purpose, and has a core made of cushioning yarn 11 made of foamed polymer material, a sheath made of short fiber sliver 12, and a front side of the sheath. The long fiber filament 13 is twisted and the cushioning yarn 11 and the short fiber sliver 12 are bundled to form a core-sheath structure, which is used as the pile yarn 14. It is characterized in that loop piles 16 are formed by tufting the base fabric 15 in similar colors.

The cushioning yarn 11 is made of a polymeric material such as polyvinyl chloride, polypropylene, polyethylene, polyurethane, natural or synthetic rubber, which is foamed by mechanical means such as a mixer or chemical means using decomposed gas of a foaming agent. It can be made by extrusion molding into a shape, by supporting it on thin threads and pulling it out into a string, or by forming it into a sheet and then cutting it through a slitter.

When cutting a polymer foam sheet into strings,
The cushioning yarn 11 may be reinforced by pasting a nonwoven fabric or the like on the sheet.

The short fiber sliver 12 has a fiber length of 20 to 40 cm and a thickness of 5 denier, a fiber length of 30 to 50 cm and a thickness of 10 denier, and a fiber length of 40 to 60 cm and a thickness of 15 denier. As mentioned, the fiber length is 20-100cm
The total denier is made by blending several different kinds of raw cotton in the range of 1000~ through the spinning card and drafting process
Adjust to 15,000 denier.

To form a core-sheath structure in which the cushioning yarn 11 is the core and the short fiber sliver 12 is the sheath,
The short fiber slivers 12 are drawn out in parallel so as to surround the periphery of the cushioning yarn 11, and the long fiber filaments 13 are wrapped around them and passed through a hole in the rotating bobbin shaft.
3 may be pulled out so as to wrap around the surface of the short fiber sliver 12 surrounding the cushioning yarn 11.

In that case, the long fiber filament 13 must not completely cover the surface of the short fiber sliver 12 with the mizuhiki or lame yarn, and in order to do so, the thickness of the long fiber filament 13 should be
The total denier of long fiber filament 1 should be approximately 20 denier, which is about 1/20 to 2/20 of the total denier of 2.
3 twist number is 3 times/cm or less, preferably 1 time/cm
Do the following.

As the long fiber filament 13, a heat-fusible synthetic fiber that also serves as a hot-melt adhesive (for example, Toray Industries' fiber "Elder" with a melting point of 110 to 120 degrees Celsius) is used, and the sliver 1 is heat-treated before tufting.
It is best to fuse it to 2.

[Effect of idea]

The first feature of the present invention is that the pile yarn 14 has the cushioning yarn 11 as the core and the short fiber sliver 12 as the core.
It has a core-sheath structure with a sheath part.

The second feature of the present invention is that the short fiber sliver 12
The fibers are not twisted and bundled around the core cushioning thread 11, but are bundled around the long fiber filament 13.

A third feature of the present invention is that the pile yarn 14 forms a loop pile 16 rather than a cut pile.

A fourth feature of the present invention is that the loop pile 16 is formed by tufting the pile yarn 14 onto the base fabric 15, rather than using a Wilton or Moquette loom or knitting machine.

The fifth feature of the present invention is that the cushioning yarn 11
The short fiber sliver 12 has similar colors.

Thus, the present invention has the following effects.

That is, the cushioning yarn 11 has far superior elastic recovery power compared to the crimped fibers, which are non-foamed polymeric substances, that have been conventionally used in pile yarns, and the pile yarn 14 has this as its axis, so that the cushioning yarn 11 A pile fabric 10 with excellent properties is obtained.

This cushioning property is not due to the cushion layer on the back side of the pile fabric 17;
Because it is a unique product, a simple rug that is easy to fold and has excellent cushioning properties can also be obtained.

Since the cushioning thread 11 is covered with the short fiber sliver 12 and the pile 16 is not a cut pile but a loop pile, it does not appear directly on the surface and the appearance of the pile fabric 17 is not much different from the conventional one. In particular, since the cushioning yarn 11 and the short fiber sliver 12 have similar colors, even if the cushioning yarn 11 protrudes from between the short fibers of the sliver 12, the aesthetic appearance of the pile surface is not impaired, and the cushioning yarn 11 protrudes from between the short fibers of the sliver 12 without damaging the appearance of the pile surface. In particular, it does not receive any frictional resistance, so thread breakage does not occur frequently, and the pile fabric 1
7 should not be easily worn out.

In addition, the sheath portion of the short fiber sliver 12 is not twisted and tied to the core cushioning yarn 11 and is not tightly bound to the long fiber filament 13, so the yarn is 14 is expanded in the thickness direction to obtain a bulky pile fabric 17 with a good texture.

Furthermore, pile yarn 1 in tufted machine
Unlike pile yarns in looms and knitting machines, yarn 4 is not constantly subjected to strong tension, but is instantaneously subjected to tension when the needle comes out of the base fabric 15. Even when the fiber sliver 12 is lightly bundled with the thin long fiber filament 13, the fibers do not break during the tufting process, and in particular, the short fibers stick together under the expansion force of the cushioning yarn. When the cushioning yarn 11 is made of a material with a high coefficient of friction, such as rubber or polyurethane, the binding between short fibers is strengthened through it, and tufting can be performed as efficiently as conventional pile yarns. be done.

However, since the sliver 12 on the surface of the pile yarn is not twisted, there is no appearance defect on the pile surface due to uneven twisting.

As described above, according to the present invention, a pile fabric that is flexible, easy to fold, has excellent cushioning properties, and has a beautiful pile surface can be efficiently obtained, and thus the present invention is practical and extremely convenient.

[Brief explanation of the drawing]

FIG. 1 is an enlarged partial sectional view of the pile fabric according to the present invention. 11... Cushionable yarn, 12... Short fiber sliver, 13... Long fiber filament, 14...
...Pile yarn, 15...Base fabric, 16...Loop pile, 17...Pile fabric.

Claims (1)

[Scope of utility model registration request] Cushioning yarn 11 made of polymer foam
is the core, the short fiber sliver 12 is the sheath,
The long fiber filament 13 is twisted on the front side of the sheath part to bundle the cushioning yarn 11 and the short fiber sliver 12 to form a core-sheath structure.The yarn is used as the pile yarn 14, and is tufted onto the base fabric 15 to form a loop pile. 16
A pile fabric characterized in that the cushioning yarn 11 and the short fiber sliver 12 have similar colors.