JP2017099617A - carpet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a carpet capable of suppressing stirring-up of grit and dust without limiting weaving specifications of the carpet and without limiting flexibility of design.SOLUTION: The carpet according to the present invention includes an upholstery layer composed of pile yarns and a base fabric, and a backing layer. The carpet is characterized in that a tacky adhesive agent is fixed to the pile yarns above the base fabric. The tacky adhesive agent is preferably selected from a group composed of an acrylic silicone resin, a polyurethane resin, an acrylic resin, a vinyl acetate resin, and a polyester resin.SELECTED DRAWING: None

Description

  The present invention relates to a carpet capable of suppressing a soaring by walking or the like after dust or dust floating in a room drops due to gravity and adheres to a carpet laid on a floor surface.

  Carpets are popular because they are highly valued for their design and aesthetics, as well as their safety in terms of heat retention, soundproofing, and slip resistance. In addition, with the recent increase in interest in PM2.5, there is an increasing interest in reducing dust floating in the room and the amount of dust.

  By the way, it has been conventionally known that tufted carpets take in indoor dust and dirt between pile yarns and pile yarns. The dust and dust once taken in are required to be removed by daily cleaning, for example, wiping with a rag or suction with a vacuum cleaner. For this reason, there is also a concern that the carpet may be raising dust and dirt that are taken in by walking.

  In Patent Document 1, a pile of tufted carpet, a single yarn fineness of 5-30 dTex and a range of 100-500 dTex, at least two kinds of crimped yarns having different thicknesses, a total fineness of 1800-3600 dTex, It is described that by forming a twisted yarn having a twist number of 40 to 250 T / m, not only dust but also fine particles (floating matter) of 10 μm or less that cannot be seen with the naked eye can be taken in, and the holding ability is high.

JP 2012-251417 A

  However, although the technique of patent document 1 suppresses re-floating of microparticles | fine-particles by limiting a carpet to the specification of a certain specific range, a woven specification will be limited.

  The present invention has been made in view of such a technical background, and does not limit carpet weaving standards, and does not limit the degree of freedom of the original excellent design of carpets, so that dust and dust can be lifted up. It aims at providing the carpet which can be suppressed.

  In order to achieve the above object, the present invention provides the following means.

  [1] A carpet including a skin layer made of a pile yarn and a base fabric, and a backing layer, wherein the adhesive is fixed to the pile yarn on the base fabric.

  [2] The carpet according to item 1, wherein the pressure-sensitive adhesive is selected from the group consisting of an acrylic silicone resin, a polyurethane resin, an acrylic resin, a vinyl acetate resin, and a polyester resin.

[3] The carpet according to item 1 or 2, wherein the pressure-sensitive adhesive is fixed to a carpet of 0.5 to 8 g / m ² (dry weight).

  In the invention of [1], in a carpet including a skin layer composed of a pile yarn and a base fabric, and a backing layer, the adhesive is fixed to the pile yarn above the base fabric. Since the dust and dust adhered to the adhesive fixed to the pile yarn, the rise of dust and dust can be suppressed. Also, with conventional carpets, dust and dirt tend to gradually collect near the pile yarn roots, but thanks to the adhesive that sticks to the pile yarns, dust and dust can be prevented from collecting at the pile yarn roots. .

  In the invention of [2], the adhesive is selected from the group consisting of an acrylic silicone resin, a polyurethane resin, an acrylic resin, a vinyl acetate resin, and a polyester resin and exhibits an excellent adhesive force. Suppression can be suppressed.

In the invention [3], since the pressure-sensitive adhesive is fixed to the 0.5 to 8 g / m ² (dry weight) carpet, it is possible to sufficiently suppress the rise of dust and dust. Moreover, dust and dirt can be sufficiently removed by daily cleaning, for example, wiping with a rag or suction with a vacuum cleaner.

  In the carpet of one embodiment of the carpet according to the present invention, in a carpet including a skin layer composed of a pile yarn and a base fabric, and a backing layer, an adhesive is fixed to the pile yarn on the base fabric. The carpet which applied the solution containing an adhesive from the carpet surface side of the pile yarn of a carpet, and heat-dried can be illustrated. Dust or dust that has fallen on the carpet is not only the wind pressure generated by the movement of the feet while walking, but also the impact of the landing of the heel and the toes kick the pile surface of the carpet. Dust soars. That is, dust and dust are further swollen by pushing out dust and dust together with air contained in the pile yarn while the impact due to landing of the kite deforms the pile yarn, and then restoring the pile yarn when the kite is separated. According to the present invention, the dust or dust that has fallen on the carpet sticks to the adhesive that is fixed to the pile yarn, so that the wind pressure generated by the movement of the feet, the impact due to landing of the heel, and the heel are separated. It is possible to suppress dust and dust rising due to the restoring force of the pile yarn.

The material of the pile yarn used in the present invention is not particularly limited, and materials made of polyester fiber, polyamide fiber, polypropylene fiber, acrylic fiber, rayon fiber, etc. can be suitably used, and other hemp Those made of natural fibers such as cotton and wool can also be used. The pile may be a cut pile or a loop pile. The basis weight of the pile yarn is preferably set to ²⁰⁰ to 2000 g / m ² . If it is less than 200 g / m ² , the function as a carpet is inferior, which is not preferable.

  The base fabric used in the present invention is not particularly limited, such as a woven base fabric and a non-woven fabric, but a polypropylene woven base fabric is preferably used as a base fabric generally used for carpets used at home and the like. .

  As an adhesive of this invention, an acrylic silicone resin, a polyurethane resin, an acrylic resin, a vinyl acetate resin, a polyester resin etc. can be mentioned, for example. More preferably, at least one of these forms an emulsion state with water. You may mix | blend various additives, such as a dispersing agent and a thickener, with this aqueous dispersion. Of these, acrylic silicone resins, polyurethane resins, and acrylic resins are preferable.

  A method for applying an adhesive to the pile yarn may be applied by a conventional method such as a spray method, a coating method, or a printing method, and dried by heating. About the place to fix, it is good to fix from the pile surface to the root of a pile yarn.

The adhesion amount of the pressure-sensitive adhesive to the carpet is preferably in the range of 0.5 to 8 g / m ² (dry weight). By setting it within this range, it is possible to sufficiently suppress the rising of dust and dust. Moreover, dust and dirt can be sufficiently removed by daily cleaning, for example, wiping with a rag or suction with a vacuum cleaner. More preferably, it is the range of 1-5 g / m < ² > (dry weight).

  Next, the backing layer is not particularly limited as long as it is a resin composition or rubber composition that can fix the pile yarn and the base fabric. For example, the resin component of the resin composition may be acrylic, urethane, or polyvinyl chloride. , Polyethylene, polypropylene, ethylene-vinyl acetate copolymer (EVA), and other resins. Examples of the rubber component of the rubber composition include SBR (styrene-butadiene), NBR (acrylonitrile-butadiene rubber) MBR (methyl methacrylate-butadiene rubber), and natural rubber.

  Next, specific examples of the present invention will be described, but the present invention is not particularly limited to these examples. Table 1 shows the results of the dust rising test.

<Materials used>
Base fabric: Woven base fabric composed of polypropylene fibers for both warp and weft (warp density 18 / inch, weft density 13 / inch, basis weight 80 g / m ² )
Pile yarn: Pile yarn made of polypropylene fiber (1400 dtex) is planted on a base fabric with a tufting machine (pile length 7.0 mm (cut pile), pile basis weight 350 g / m ² )
Backing layer: SBR latex (calcium carbonate as filler)

<Example 1>
An aqueous adhesive solution in which 3 parts by weight of acrylic silicone resin is dispersed in 100 parts by weight of water is thinly applied to the surface of the pile by spraying, and dried at a temperature of 150 ° C. for 8 minutes. .2 g / m ² (dry weight) A carpet which was fixed was obtained.

  Table 1 shows the number of particles having a height of 30 cm from the floor in the dust rising test of Example 1. Table 2 shows the number of particles having a height of 30 cm from the floor in the dust rising test of Comparative Example 1. Table 3 shows the number of particles having a height of 100 cm from the floor in the dust rising test of Example 1. Table 4 shows the number of particles having a height of 100 cm from the floor in the dust rising test of Comparative Example 1. As a reference, Table 5 and Table 6 show the number of particles having a height of 30 cm from the floor and a height of 100 cm from the floor, respectively, in the dust rising test on the flooring floor. Here, the particle size (μm) described in each table, for example, “1 or more” means all particle sizes having a particle size of 1 μm or more, and time (seconds) “0” represents the time point of starting measurement, For example, “30 to 60” means from 30 seconds to 60 seconds.

<Comparative Example 1>
The carpet before spray-coating the adhesive aqueous solution in Example 1 was defined as Comparative Example 1. That is, the adhesive is not fixed to either the pile yarn of the carpet or the surface of the base fabric.

<Dust rising test evaluation method>
A person walked on the carpet laid in the clean booth, and measured and evaluated the number of dust that soared during and after walking. The number of dust per liter was calculated from the measured value.
(Measurement laboratory and measurement environment)
Clean booth size: 200cm x 300cm x 200cm
Indoor temperature: 22 ± 2 ℃
Indoor humidity: 55 ± 5% R.D. H.
Laying carpet area: 250cm x 50cm

(Measuring equipment and conditions)
Particle counter: MetOne A2400
Suction volume: 28.3 L / min Particle size: 1 μm or more At the center of the carpet laid in the clean booth, the particle counter suction port was set at 30 cm and 100 cm from the floor.

(Test carpet)
Pile yarn: Polypropylene fiber (total fineness 1400 dtex)
Pile length: 7.0mm (cut pile)
Pile weight: 350 g / m ²
Base fabric: Polypropylene fiber

(Test dust)
Test dust 1.5g (weight ratio of powder and cotton linter (cotton) is 1: 1, and 11 kinds of powder 1 for JIS Z 8901 test were used)

(Walking conditions)
Pedestrian: 1 adult male (height 165cm, weight 60kg)
Pedestrian clothing: Long-sleeved jacket and long pants Walking speed: 50 cm / sec Walking time: 1 min

(test)
1) Preparation before measurement (a) Lay a test carpet in the clean booth.
(B) Using a vacuum cleaner (MC-M6 manufactured by Panasonic Corporation), suction cleaning (two reciprocations) is performed on the test carpet.
2) Blank measurement (measured without using test dust)
(B) Adjust the clean booth to the conditions of the measurement environment.
(B) Walk in parallel on the carpet. (Stays after walking.)
3) Measurement of test dust rise (a) After the above 2) blank measurement, the test carpet is suction-cleaned (two reciprocations).
(B) The test dust is uniformly dispersed on the carpet, and the test dust is fixed on the carpet with a roller made of vinyl chloride.
(C) Adjust the clean booth to the conditions of the measurement environment.
(D) Walk in parallel on the carpet. (Stays after walking.)
(I) to (d) are set as one set, and three sets are repeated.
4) Measurement Under measurement equipment and conditions, measurement was performed at 30 second intervals until 5 minutes passed using a particle counter simultaneously with the start of parallel walking.

  As is clear from Tables 1 and 2, the result of the dust rising test measured at a height of 30 cm from the floor is that the particle size is 1 μm or more and the amount of dust rising for 5 minutes is the comparative example. It decreased to 75% compared to 1. Moreover, as can be seen from Tables 3 and 4, the result of the dust rising test measured at a height of 100 cm from the floor also decreased to about 75%. Thus, the carpet of this invention exhibits the effect excellent in reduction of the amount of dust in indoor space. By the way, as can be seen from Tables 5 and 6, the similar test results on the flooring floor where no carpet was laid showed that the amount of dust rising was significantly larger than that of Example 1.

  Carpets that can suppress dust and soaring of dust can be used not only for ordinary households but also for carpets laid in offices.

Claims (3)

  A carpet comprising a skin layer comprising a pile yarn and a base fabric, and a backing layer, wherein the adhesive is fixed to the pile yarn on the base fabric.   The carpet according to claim 1, wherein the pressure-sensitive adhesive is selected from the group consisting of an acrylic silicone resin, a polyurethane resin, an acrylic resin, a vinyl acetate resin, and a polyester resin. The adhesive 0.5 to 8 g / ^{m 2} (dry weight) Ca - mosquitoes according to claim 1 or 2 are fixed to the pet - pet.