JP3124672U - Heavy goods exhibition carpet - Google Patents

Abstract

【Task】
We provide heavy-duty exhibition carpets that have little wear and sag when placing heavy objects such as automobiles, or when laying in international exhibitions where there is a large number of people, and maintain a hair-like cushion feeling for a long time. To do.
[Solution]
The card wrap is mainly composed of short fibers having a fineness of 35 to 110 dtex, and the base fabric is arranged at a height of 1/3 to 1/2 from the surface in the thickness direction of the felt material. Furthermore, latex is impregnated at least up to the position of the base fabric
[Selection] Figure 3

Description

  The present invention relates to a heavy-duty exhibition carpet that has little wear and sag when a heavy object such as an automobile is placed and maintains a hair-like cushion feeling for a long time.

  Needle punch felt, which is a kind of non-woven fabric, is widely used as a flooring material, that is, carpet, and its manufacturing method and application are variously disclosed on pages 347 to 354 of Non-Patent Document 1, for example. As the short fibers constituting the felt, polyester fibers having relatively good heat resistance and wear resistance are often used.

When polyester fiber or wool felt is used as a carpet or fur, as shown in Japanese Utility Model Laid-Open Nos. 55-125184, 60-125984, and Japanese Translation of PCT International Publication No. 2001-501682, a foamed resin back layer is provided on the back side of the felt. Are bonded or heat-sealed to enhance the cushioning property of the carpet. The foamed resin of the back layer is polyurethane, polystyrene, polyolefin, or the like, and is generally set to a thickness comparable to or greater than that of the felt surface layer.
Second edition, Textile Handbook (Edited by Textile Society, March 25, 1994) Japanese Utility Model Publication No. 55-125184 Japanese Utility Model Publication No. 60-125984 Special table 2001-501682

  The carpet having a relatively thick back layer on the back side of the felt has a problem that even if the feel and cushioning properties are improved, the back layer is liable to sag when used continuously. Especially at motor shows, when heavy objects such as automobiles are placed on a carpet and displayed, a thick back layer made of foamed resin will dent immediately, and carpet fibers will also be worn and damaged, causing pilling. It becomes unsightly and stands out in a bad sense in a brilliant place like a motor show.

  In order to avoid the occurrence of sag and pilling at the time of use in a needle punch carpet, it has been common knowledge to use a thick and hard short fiber as a felt material and to make the back layer thin by only preventing slippage. However, simply thickening the short fibers used makes the carpet itself heavier and more troublesome to transport and store, and pilling can hardly be avoided, and the carpet is bent and twisted, resulting in reduced construction efficiency. However, the whole was easy to loose and lacked durability.

  The present invention has been proposed in order to improve the above-mentioned problems associated with conventional needle punch carpets, and is a heavy article that has little wear and sag when a heavy article such as an automobile is placed at a motor show or the like. Its purpose is to provide exhibition carpets. Another object of the present plan is to provide a heavy-duty exhibition carpet that uses biodegradable materials at least in part to reduce disposal problems after use.

  The heavy goods exhibition carpet according to the present invention is a needle punch carpet in which a base fabric is combined with a card wrap mainly composed of short fibers and integrated by needle punching, and a latex layer is formed on the back surface of the obtained felt material. . The carpet of the present invention mainly uses short fibers having a fineness of 35 to 110 dtex in the card wrap, and the base fabric is located at a height of 1/3 to 1/2 from the surface in the thickness direction of the felt material. Furthermore, the latex is impregnated at least up to the position of the base fabric.

  In the heavy goods exhibition carpet according to the present invention, the short fibers used in the card wrap are preferably polyester or polyolefin fibers. Further, preferably, a part or all of the short fiber, the base fabric and / or the impregnated latex which are the constituent materials of the carpet are made of a biodegradable material.

  The present invention will be described with reference to the drawings. FIG. 3 shows a heavy goods exhibition carpet 1 according to the present invention, and FIGS. 4 and 5 are modified examples thereof. In FIG. 1, the card wrap 3 is mainly composed of short fibers 2. As illustrated in FIG. 2, a base cloth 5 is interposed between the card wraps 3 and 3, and the whole is integrated by needle punching, and a latex layer 7 (FIG. 3) is formed on the back surface of the obtained felt material 6.

  The short fiber 2 constituting the card wrap 3 is mainly composed of one or two or more very thick thermoplastic fibers, and a long fiber may be included in a part of the card wrap. The short fiber 2 is preferably a polyester or polyolefin fiber having a fineness of 35 to 110 dtex. Polyester or polyolefin fibers can minimize the occurrence of pilling due to fiber breakage, which is the biggest difficulty of carpets, and are advantageous from the viewpoint of cost. Moreover, you may mix the short fiber of less than 35 dtex within the range which does not impair performance, such as pilling resistance (usually 30% or less).

When the fineness of the short fiber 2 is 35 to 110 dtex, a gap, that is, a minute space is generated between the fibers, thereby improving the flexibility of the carpet itself and preventing the carpet 1 from being bent or flare to a minimum. Therefore, the carpet construction efficiency is remarkably improved. Moreover, when the basis weight of the card wrap 3 is 400 to 1000 g / m ^2, it is preferable in terms of imparting appropriate cushioning and feel to the carpet 1.

The base fabric 5 is desirably a woven base fabric with relatively little stretchability, and the material thereof is composed of one or two or more very thick thermoplastic fibers, preferably polyester or polyolefin fibers. The fineness of the woven base fabric is preferably 35 to 110 dtex. When the fineness is 35 to 110 dtex, it is possible to prevent fiber breakage and to avoid difficulty in handling. The woven base fabric has, for example, 10 to 30 warps / cm ² and 5 to 15 wefts / cm ² , and if it is within this range, the elongation of the base fabric can be sufficiently suppressed. The basis weight of the base fabric 5 is preferably 50 to 150 g / m ² .

As shown in FIG. 2, in order to manufacture the felt material 6, the card wrap 3 is divided into upper and lower parts, and the base cloth 5 is sandwiched and punched with the needle 8 so that the thickness of the felt material 6 is increased. The base fabric 5 is arranged so that the height is 1/3 (FIG. 3) to 1/2 (FIG. 5) from the surface in the direction. At this time, the needle punching process is performed by punching from the lower side or the upper side in the needle depth of 9 to 20 mm using the needle 8 of No. 25 to 42, and driving the fiber deeply into the back of the base fabric. 10 can be deeply impregnated. The number of needles 8 to be driven is usually preferably 100 to 300 / cm ² , since the fiber density increases and the fiber entanglement is enhanced and the latex 10 is easily impregnated.

The felt material 6 including the base fabric 5 is desirably ² to 6 mm in thickness and 450 to 1150 g / m ² in basis weight. The base fabric 5 needs to be disposed at a height position of 1/3 to 1/2 from the surface in the thickness direction of the felt material 6. If the height position of the base fabric 5 is less than ½ of the overall thickness of the felt material 6, dents and sag are likely to occur due to the placement of heavy objects, while if it exceeds 2/3, The surface touch is reduced and the short fibers 2 are often removed during use.

  The latex layer 7 is formed by applying and drying the back surface of the felt material 6, and most of the latex 10 is impregnated in the felt material 6. The latex used is preferably a flame retardant latex such as styrene / butadiene rubber (SBR), methyl methacrylate / butadiene rubber (MBR), ethylene / vinyl acetate copolymer (EVA), acrylic resin, and acrylonitrile / butadiene rubber. Rubber-based latexes such as (NBR), polybutadiene rubber (BR), and chloroprene rubber (CR) may be used. In particular, SBR or MBR is preferable because it has high film strength, good chemical stability such as heat resistance, and good processability.

The impregnated latex 10 is deeply impregnated into the interior by applying the back surface of the felt material 6 by using the very thick short fibers 2 for the felt material 6 and the short fibers 2 being deeply driven into the back surface of the base fabric by the needle punching process. It is possible to strengthen the locking of the short fibers 2 to the maximum. The impregnated latex 10 reaches at least the position of the base fabric 5 and reaches the surface of the felt material 6 as desired, thereby preventing the carpet 1 from being set. The dry coating amount of this latex is 200 to 500 g / m ² , and if it is within this range, it is possible to sufficiently strengthen the locking of the short fibers 2.

The obtained carpet 1 has a total thickness of 3 to 7 mm and a total weight of 650 to 1650 g / m ^2. Desirable physical properties can be obtained within this range. Since the carpet 1 is laid in a relatively wide range such as a motor show or an international exhibition, the plain colored short fibers 2 are used to form a plain solid color such as gray, black, red, blue, yellow, or a marbling pattern. It is common.

  Furthermore, in the carpet 1, a biodegradable material can be used for a part or all of the short fibers 2, the base fabric 5 and / or the impregnation latex 10. When this biodegradable material is left in the ground, it is naturally decomposed and assimilated with the soil. Therefore, when the carpet 1 is discarded, the portion made of the biodegradable material need only be buried and left, and its disposal is easy. .

  As the biodegradable material, biodegradable fibers such as polylactic acid may be used for the short fibers 2 and / or the base fabric 5. For the impregnated latex 10, biodegradable plastics such as natural rubber (NR) and polylactic acid or complex polysaccharides such as gum arabic, guar gum and alginic acid are used, soluble starch, ie acid-modified starch, dextrin and oxidized starch. , Starches such as starch derivatives, glue, gelatin, albumin, casein, proteins such as soy protein, polyamino acids, celluloses such as methylcellulose, carboxycellulose, cellulose nitrate, cellulose acetate, viscose, etc. A part of the biodegradable binding material may be added.

  The carpet according to the present invention is much stronger than conventional needle punch carpets, and lays at international exhibitions where heavy objects such as automobiles are placed at motor shows, etc., and large-scale personnel gather. In this case, there is little wear and damage of the felt material and overall sag, and there is almost no pilling, and the hair-like cushion feeling and thickness can be maintained for a long time. The carpet according to the present invention complements the original exhibits in brilliant places such as motor shows and international exhibitions, and the carpets are not always noticeable.

  In addition, the carpet of the present invention has at least a part of its constituent short fibers, base fabric, and latex made of biodegradable material, and the biodegradable material is naturally decomposed and assimilated with soil when left in the ground. To do. For this reason, when the carpet of the present invention is discarded, the portion made of the biodegradable material only needs to be buried and left, and it is not necessary to incinerate the entire carpet. .

Next, this invention is demonstrated based on an Example. In FIG. 2, a card wrap 3 using polypropylene short fibers 2 having a fineness of 44 dtex is combined with a polypropylene cloth having a number of warp × weft = 24 × 9 as a base fabric 5 and needle punching to give a basis weight of 650 g. A felt material 6 of / m ² was obtained. Regarding the felt material 6, the position of the base fabric 5 was 1/3 of the felt material surface in the thickness direction of the felt material 6 as shown in FIG.

In the rear surface of the felt material 6, 350 g / ^{m 2} applied by coating the SBR latex, and coated under the condition of impregnating to the position of the base cloth 5 of the felt material, basis weight 1000 g / ^{m 2} exhibition carpet 1 ( Fig. 3) was obtained. The obtained carpet 1 is extremely less worn, damaged and deteriorated under severe use conditions, and hardly bends or flare during construction.

A felt material 6 having a basis weight of 750 g / m ² was obtained in the same manner as in Example 1 except that a polylactic acid fiber having a fineness of 66 dtex was used as the short fiber 2 and a polylactic acid long fiber fabric was used as the base fabric 5. . Subsequently, biodegradable natural rubber latex was applied in the same manner as in Example 1 to obtain an exhibition carpet 1 having a basis weight of 1100 g / m ² . The obtained carpet 1 has very little wear, damage and deterioration under severe conditions of use. Further, there is almost no curving or flare during construction, and the entire carpet is made of biodegradable material. Is easy to dispose of.

  The same treatment as in Example 1 was carried out except that a card wrap in which 80% polypropylene fiber having a fineness of 44 dtex and 20% polypropylene fiber having a fineness of 17 dtex was used.

  Like the carpet 1 obtained in Example 1, the obtained carpet is less worn, damaged, and deteriorated under severe use conditions.

Comparative Example 1
A felt material was obtained in the same manner as in Example 1 except that polypropylene short fibers having a fineness of 16.5 dtex were used. The position of the base fabric in the obtained felt material was a half position from the surface of the felt material in the thickness direction of the felt material. Further, SBR latex was applied to the back surface of the felt material in the same manner as in Example 1 to obtain a carpet having a basis weight of 1000 g / m ² .

  At this time, the SBR latex was impregnated only up to 1/4 position from the back surface of the felt material, and the obtained carpet was inferior in wear resistance, and further, flare and curvature occurred during construction.

It is a schematic sectional drawing which shows an example of the card wrap used by this invention. It is a disassembled sectional view which shows the manufacturing process of a felt material. It is a schematic sectional drawing of the heavy goods exhibition carpet which concerns on this invention. It is an expanded sectional view which shows the modification of the carpet for heavy goods exhibition. It is an expanded sectional view which shows another modification of the carpet for heavy goods exhibition.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Carpet for heavy goods exhibition 2 Short fiber 3 Card wrap 5 Base cloth 6 Felt material 7 Latex layer 10 Impregnation latex

Claims (3)

  It is a needle punch carpet in which a base fabric is combined with a card wrap mainly composed of short fibers and integrated by needle punching, and a latex layer is formed on the back surface of the obtained felt material. The card wrap has a fineness of 35 to 110 dtex. A short fiber is mainly used, and the base fabric is arranged at a height of 1/3 to 1/2 from the surface in the thickness direction of the felt material, and latex is impregnated at least to the position of the base fabric. Carpet for heavy goods exhibition.   The exhibition carpet according to claim 1, wherein the short fibers used in the card wrap are polyester or polyolefin fibers.   The exhibition carpet according to claim 1, wherein a part or all of the short fiber, the base fabric and / or the impregnated latex which are constituent materials of the carpet are made of a biodegradable material.

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