JPH01209041A - Shoes wiping mat - Google Patents

Abstract

PURPOSE:To cause a mat to be excellent in respective kinds of fastnesses and, simultaneously, to be excellent in a feeling, a decorative effect and a dust collectability by composing a pile yarn of a solution dyed nylon crimped multifilament with modified cross-section in which a dispersion colorant particle size is a specific size or below. CONSTITUTION:A shoes wiping mat is composed of a foundation 1, a mat pile yarn 2 tufted into it, and a packing 3 of an elastomer executed on a surface opposite to the pile surface of the foundation 1. The pile yarn 2 is made of the modified cross-section crimped multifilament of the solution dyed nylon, and each single yarn 4 has a three-leaf type section for one example, and an internal part is composed of a successive phase 5 of the nylon and a colorant dispersion phase 6 dispersed in the successive phase. The dispersion particle size is made into 5mum or below. Thus, while the excellent coloring fastness of the solution dyed nylon is held as it is, the feeling, the decorative effect such as a color feeling, and the dust collectability can be remarkably improved.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a shoe-wiping mat, and more particularly, it has a combination of excellent dye fastness, texture, decorative effect, and dust-trapping property. Regarding shoe cleaning mats.

(Conventional technology) Recently, rental shoe cleaning mats, so-called rental mats, have become very popular mainly at the entrances of stores and offices. In a rental system where mats are collected, washed, recycled, and reused, maintaining stable quality of the mats used is a very important issue. Rental mats are very often used near the entrances and exits of shops and offices due to their dust control function and entrance accent, and while they are being used, they not only receive direct sunlight, but also The pile is exposed to sand and rainwater, and after collection, it is washed with a strong alkali to thoroughly remove stubborn stains, so careful consideration is given to the pile's abrasion resistance and dye fastness. need to be done. Natural fibers and various synthetic fibers, such as wood thread, vinylon, nylon, polyester, and acrylic, have been used as the pile material for traditional mats, but in recent years, materials such as abrasion resistance, elastic recovery, and color development have been used. Nylon fibers with excellent properties have been used relatively often, and this trend is expected to continue in the future.

(Problem to be solved by the invention) Nylon pile rental mats currently in practical use are exposed to direct sunlight, earth and sand, and rainwater in the same way as mentioned above, and after collection, they must be thoroughly cleaned of stubborn dirt. In order to remove the nylon pile, it is washed with a very strong alkali, but in order to maintain the above-mentioned stable quality, nylon pile is washed with relatively strong acid dyes and metal-containing dyes. Currently, dyes are selected and treated with natural tannins and various synthetic fixing agents. However, the combination of these acidic dyes and metal-containing dyes with various natural and synthetic fixing agents is such a treatment that it would be considered excessive quality for general use, or the combination of these acid dyes and metal-containing dyes with various natural and synthetic fixing agents may be considered to be of excessive quality for general use, or may be used in rental mats used for the above-mentioned purposes. It is by no means excessive, and on the contrary, the color often fades before the pile wears out, resulting in substandard products.

Therefore, an object of the present invention is to provide a nylon material which overcomes the above-mentioned drawbacks and is excellent in various fastness properties such as light fastness and washing fastness, as well as excellent texture, decorative effect, and dust-trapping properties. To provide a rental shoe-wiping mat using pile.

(Means for Solving the Problems) According to the present invention, a shoe includes a base fabric, a pile yarn tufted to the base fabric, and an elastomer backing layer applied to the pile yarn stitching surface of the base fabric. Provided is a shoe-wiping mat characterized in that the pile threads are comprised of irregular cross-section crimped multifilaments of solution-colored nylon having a dispersed colorant particle size of 5 μm or less.

In the present invention, the crimped multifilament is.

It is preferable to have a single fiber diameter of 10 to 200 μm, and this crimped multifilament has a diameter of 10 to 60 μm.
%, where the irregular cross-sectional area ratio (RS) is expressed by the following formula: Sl is the cross-sectional area of the filament, and So is the area of the circumcircle with respect to the cross-section of the filament. is a characteristic value defined by .

(Function) Due to the characteristics of the manufacturing method, nylon produced by the dope dyeing method allows the use of pigments with very good light resistance in addition to the dyes used in the dyeing method. From this point of view, it is possible to select from a wider range of dyes compared to conventional dyeing methods. In addition, like colored plastic products, the pigment is dispersed throughout the fiber structure in a stable state, so it is better than conventional dyeing methods in terms of the wash resistance and light resistance required for the rental mats mentioned above. There is a significant difference in the quality of the dyes, and it can be said that nylon produced by the dope coloring method is very effective and suitable for such uses.

In general, the dope dyeing method is well known as a type of dyeing method for synthetic fibers, and it has been put to practical use in school uniforms, training wear, etc. in the past. A rental mat made of thread has been developed.

However, solution-colored nylon fibers have a monotonous and cheap color tone, and are therefore clearly not suitable for use in shoe cleaning mats that require decorative effects, advertising effects (accents), fashionability, and the like.

In the present invention, undiluted solution-colored nylon is tufted in the form of irregular cross-section crimpable multifilament yarn to form a pile yarn, and by crimping this, the excellent dyeing fastness of solution-colored nylon is maintained. However, it has succeeded in significantly improving the decorative effects such as texture and color, as well as the dust collection performance. In other words, by using solution-colored nylon as a filament with an irregular cross-section, by forming minute irregularities on the surface and forming a large number of minute bends by crimping, a wide variety of light scattering effects are imparted. A rich color tone can be obtained. In addition, by adding crimps to the irregular cross-section nylon filament yarn, the texture of the matte pile is significantly improved, and the ability to adsorb dust attached to the soles of shoes, etc. to the pile (dust adsorption), The dust collection ability, such as the ability to retain dust adsorbed to the surface (dust retention ability), is also significantly improved. Moreover, according to the present invention, by constructing the matte pile with a multifilament of spun-dyed nylon crimped in irregular cross-sections, the appearance characteristics such as excellent coloring effect can be achieved even when a considerable amount of dust is attached to the pile yarn. The unexpected effect is that the product value and performance are maintained from the beginning to the end of the rental period.

(Preferred Embodiment of the Invention) In FIG. 1 showing the cross-sectional structure of the shoe cleaning mat (hereinafter sometimes referred to as a car mat) of the present invention, this mat includes a base fabric 1 and a mat pile tufted on this base fabric. It consists of a yarn 2 and an elastomer backing 3 applied to the opposite side of the pile surface of the base fabric 1.
However, it is characterized by being made of a crimped multifilament with an irregular cross section made of solution-colored nylon, which will be described in detail below.

FIG. 2 shows an example of the cross section of a single yarn in this solution-colored nylon irregular cross-section crimped multifilament. Each single yarn 4 has a trilobal cross section, and the inside is It consists of a continuous phase 5 of nylon and a colorant dispersed phase 6 dispersed in the continuous phase.

The dispersed particle size of the colorant 6 should be 5 μm or less, preferably in the range of 0.2 to 3 μm. If the dispersed particle size is larger than the above range, the abrasion resistance and strength required for matte pile will be reduced. etc. tend to be damaged. The single fiber diameter of the filament is generally 10 to 200 μm, particularly 20 to 11 μm.
It is desirable that the pile be within the range of 00t1 from the viewpoint of pile fluff, dust collection performance, and texture; if it is thinner than the above range, the pile will tend to lie flat and the dust collection performance will tend to be worse than those within the above range. There is.

Further, if the thickness is greater than the above range, the texture tends to be poor, and the dust retention property tends to be lower than when it is within the above range.

The irregular cross-section crimped multifilament yarn used in the present invention is
The irregular cross-sectional area ratio (RS) defined by the above formula (1) is 10
A range of 60% to 60%, especially 20 to 50% is preferred for the purposes of the invention.

That is, when the R8 value is larger than the above range, the deep color impression is lost, and the texture, dust-trapping properties, and appearance characteristics after dust adhesion tend to deteriorate. On the other hand, when the R8 value is smaller than the above range, abrasion resistance, fiber strength, etc. tend to be lower than those within the above range.

The content of the coloring agent per nylon is the one that gives the multifilament the desired color, and although it varies depending on the type of colorant, it is generally within the range of 0.05 to 10% by weight, particularly 01 to 5% by weight. It is better to have it in As the colorant, any organic pigment or inorganic pigment that can be dispersed to the above-mentioned particle size can be used, and suitable examples thereof are as follows.

Black pigments carbon black, acetylene black, lamp black, aniline black.

Yellow pigments Zinc Yellow, Cadmium Yellow, Yellow Iron Oxide, Mineral Fast Yellow, Nickel Titanium Yellow, Navel Yellow, Naphthol Yellow S1 Hansa Yellow G1 Hansa Yellow 1001 Benzidine Yellow 61 Penzidine Yellow GR, Quinoline Yellow Lake, Permanent Yellow NCG, Tart Radin rake.

Orange pigments Molybdenum Orange, Permanent Orange GTR, Pyrazolone Orange, Palkan Orange, Indanthrene Brilliant Orange RK1 Benzidine Orange G1 Indanthrene Brilliant Orange GK.

Red pigments Hengara, cadmium red, red lead, mercury sulfide, permanent red 4R, resol red, pyrazolone red, watching red calcium salt, lakelet D1 brilliant carmine 6B, eosin lake, rhodamine lake B, alisarin lake, brilliant carmine 3B0 Purple pigment Manganese Purple, Fast Violet B, Methyl Violet Lake.

Blue pigments navy blue, cobalt blue, alkali blue lake, Victoria blue lake, phthalocyanine blue, metal-free phthalocyanine blue, phthalocyanine blue partially chlorinated product, fast sky blue, intanthrene blue BC
0 Green pigment chrome green, chromium oxide, pigment green B1
Malachite Green Lake, Final Yellow Green G0 White pigment zinc white, titanium oxide, antimony white, zinc sulfide.

Nylon 6 (polycaprolactam)
A general-purpose polyamide such as nylon 66 (polyhexamethylene adipamide) is used, and the pigment can be incorporated into the nylon by any method known per se, such as adding a colorant before polycondensation. , a method of adding the colorant during polycondensation, a method of mixing the colorant into the nylon after polymerization using a masterbatch method, etc. are adopted as appropriate.

The shape of the irregular cross-section thread is not limited to the three-lobed type, but may also be double-shaped, four-lobed, triangular, quadrangular, etc.
By extruding through a correspondingly shaped spinneret, irregular cross-section yarns are obtained. Means for imparting latent crimpability to nylon filaments are also known per se; for example,
A filament made by concentrically extruding two types of polymers with different hot water shrinkage properties.
The filament is laminated side by side, the side surface of the filament is subjected to external strain, and the filament is first curled and then heat set under tension at a temperature lower than the processing temperature.

The above crimpable multifilament generally has a
000 denier, especially in the form of multifilament yarns of 1000 to 4000 denier, for tufting onto base fabrics. The multifilament yarn may be a single yarn or a plied yarn, or preferably a plied yarn made by twisting two to four single yarns together. That is, when such a twisted yarn is used, the cut surface of the mat pile can be seen and the side surface of the pile yarn can be seen, resulting in a marbled appearance.

There is no particular limit to the number of twists of the plied yarn, but generally it is 1 twist from the bottom.
00 to 300Z (S), 80 to 250S from above
(Z) is preferred.

As the base material for tufting the multifilament yarn, any material such as nonwoven fabric, woven fabric, cotton fabric, etc. can be used. Non-woven fabrics used include stable or filament fabrics such as polyester fibers and polyamide fibers, which are integrated into a thin sheet using adhesives, embossing, etc.; A small-sized fabric, such as a gauze, a silk fabric, or a net-like fabric with a small knitting density is preferably used. The number of shots into the base material is gauge 1/
4 to 1/10 is good, and 5 stitches/1 nch to 15 stitches/1 nch is good.

All elastomer backings conventionally used for this type of mat can be used, such as SBR, NBR,
Rubbers such as chloroprene rubber, soft vinyl chloride resin,
Thermoplastic elastomers such as urethane elastomers and styrene-butashene block polymer elastomers are used. These backings can be manufactured by applying the above-mentioned elastomer latex and drying or curing it, or by overlapping the unvulcanized sheet of the rubber and the stitched surface of the mat, thermally adhering it, and curing it or cross-linking it. It is also manufactured by performing the following steps. The thickness of the elastomer backing is generally between 0.01 and 3 mm, especially between 0.01 and 2.5 mm.
It is preferable that it be in the range of mm. That is, the thickness is 0.5 m.
Relatively thin mats of 0.5 mm or less can be used in combination with mat hairs, and thick ones of 0.5 mm or more can be used alone as integrated mats.

The matte pile formed by tufting has its tips trimmed and crimped. This crimp treatment can be performed simultaneously with the curing or vulcanization of the elastomer described above, or can be performed in a separate process. Generally, the crimping process is carried out at temperatures ranging from 70 to 200°C, particularly from 8°C to 17°C.
In the present invention, which can be carried out at 0t(7) temperature, it is desirable that the pile length after crimping is generally in the range of 3 to 30 mm, particularly 5 to 20 mm.

(Effects of the Invention) According to the present invention, by using the irregular cross-section crimped multifilament yarn of spun-dyed nylon as the pile yarn for shoe cleaning mats, the spun-dyed yarn has excellent washing fastness and light resistance wax. It is possible to significantly improve decorative effects such as texture and deep color tone, and dust collection performance while maintaining the degree of stability.
In particular, even when dust adheres to the pile yarn, unexpected effects such as excellent appearance characteristics and performance are maintained.

(Example) Irregular cross-sectional area ratio: 30% Black 08 06 1300 denier 2 strands, lower twist 170 times/m, ply twist 170 times/m.

Heat set base Fabric: Polyester plain woven fabric Weight: 200 g/m2 Tufting standard Gauge: 5/32 Stitch: 10 wood/1n
ch Pile height 9mm cut pile ■ Pile + BCF nylon (nylon 66) 1300
Denier 2 strands, lower twist 170 times/m, upper twist 170 times/m.

Heat-set base Fabric 2 Composition ■ The mat original fabric with the same composition ■ above as NBR latex (solid content 4
6%) Backing was performed at 1000 g/m2 to produce mats in four colors: red, green, gray, and black.

After dyeing the matte fabric with the above composition (■) with an acid dye using a Wince dyeing machine, it was treated with a synthetic fixing agent of 5% based on the pile weight, and then red, green, and gray were dyed in the same manner as composition (■). , black mats were produced.

A light resistance test was conducted on these eight mats at 83° C. using a fade meter. The results are shown in Table 1.

Table 1/Evaluation Evaluated using gray scale (JIS 0804) From Table 1, it can be seen that black dyed products had almost the same light resistance as undiluted solution colored products, but other colors had a similar light resistance compared to dyed products. The quality was much better.

Example 2 A washing test was conducted on each mat obtained in Example 1 in the following manner. The results are shown in Table 2.

Testing machine: Round-o-meter detergent/Monogen 170 T (0.58/f) bath ratio/
1:30' Repeat 60℃ x 30 minutes 5 times Table 2 - Evaluation Evaluated by gray scale (JIS 0804) - Contamination is undyed mat (undyed product of Example 1) From Table 2, undiluted solution coloring The product showed no leakage of colorant into the cleaning solution, and good results were obtained in terms of discoloration and staining.

Example 3 Irregular cross-sectional area ratio 35% Dispersed colorant Red Particle size 1 μm, Content 1.3 vrt% 1450 denier 2 strands First twist 150 times/m, Final twist 220 times/m Heat set base Fabric Polyester plain woven fabric basis weight Amount 68037m2, pile height 10mm cut pile backing NBR latex coated amount 90037m2 (solid content 46%) Pile 100% vinylon (7th 4 wood twist) base cloth, polyester plain woven fabric Weight 70037m2, pile height 10mm cut pile backing: NBR latex coating amount 90,037 m2 (solid content 46%) Above composition ■, ■
Create a mat, cut each into 70cm x 85cm, and spray 60g of liquid paraffin oil on ■.
With dust control.

These mats were placed at the entrance of a business office where about 1,000 people come and go each day for three days, and changes in the weight of the mats were measured.
The results of measuring the amount of collected dust were as follows.

Mat (■): 21g The trilobal-type solution-colored nylon mat (■) exhibits the same dust collection and retention properties as the dust control mat (■), and the appearance of the mat (■) is severely blackened due to the wetting action of the oil, making it unsightly. In contrast,
The appearance of the mat in (2) was not treated with oil, so there was almost no difference in appearance from before the test, and the coloring effect was maintained.

Example 4 Irregular cross-sectional area ratio 40% Dispersed colorant Red particle size 1 μm Content 1.3 wt% 1300 denier 2 strands twisted
First twist 240 times/m, final twist 170 times/m Heat set area weight 78037m2 Pile height 10mm Cut pile■ Pile BCF nylon (nylon 66) 1300
Denier 2 strands First twist 240 times/m, final twist 170 times/m Heat set base Fabric 6 Composition The original mat fabric with the above composition ■ is cut into 87 cm x 72 cm, and unvulcanized NBR with a thickness of 1.5 mm is cut. Using a sheet, press backing is performed and a 1.5 mm wide NB is placed around the periphery.
An integrated mat with R ears was prepared.

After dyeing the matte fabric of the above composition (1) with a metal-containing dye (red) using a Wince dyeing machine, it is treated with a synthetic fixing agent of 5% based on the pile weight, and then the surrounding area is dyed in the same manner as in the composition (2). An integrated mat with 1.5 mm wide NBR ears was prepared.

These mats were placed at the entrance of a supermarket with approximately 2,000 visitors per day for one week, washed, placed again for one week, and washed again 10 times to measure the degree of discoloration and fading. The results were as follows.

■ Mat Grade 4 ■ Mat Grade 2 to 3 Even after repeated use 10 times, the discoloration and fading properties of solution-colored nylon are very stable, making it a very advantageous material for rental.

[Brief explanation of the drawing]

FIG. 1 shows the cross-sectional structure of the shoe-wiping mat of the present invention, and FIG. 2 shows an example of the cross-section of a single yarn in the solution-colored nylon irregular cross-section crimped multifilament. DESCRIPTION OF SYMBOLS 1... Base fabric, 2... Pile yarn, 3... Backing, 4... Single yarn, 5... Nylon continuous phase, 6...
Colorant dispersed phase.

Claims (3)

[Claims] (1) In a shoe-wiping mat consisting of a base fabric, pile yarn tufted to the base fabric, and an elastomer backing layer applied to the pile yarn stitched surface of the base fabric, the pile yarn has a dispersed colorant particle size. A shoe-wiping mat characterized by being made of a crimped multifilament of undiluted solution-colored nylon with irregular cross-section and a diameter of 5 μm or less. (2) The shoe cleaning mat according to claim 1, wherein the crimped multifilament has a single fiber diameter of 10 to 200 μm. (3) The crimped multifilament is a irregular cross-section yarn having a irregular cross-sectional area ratio of 10 to 60%, where the irregular cross-sectional area ratio (R_S) is expressed by the following formula R_S=S_1/S_0×100 S_1 is the cross-sectional area of the filament. The shoe cleaning mat according to claim 1, defined as: S_0 is the area of a circumscribed circle with respect to the cross section of the filament.