JPH0653104B2 - Shoe cleaning mat - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a shoe-wiping mat and more particularly to a combination of excellent dye fastness, texture, decorative effect and dust-collecting property. Regarding shoe cleaning mats.

(Prior Art) Recently, rental shoe wipe mats, so-called rental mats, have become very popular mainly at the entrances of stores and offices, but such mats are repeatedly used in stores and collected for washing. In the rental system of recycling and reuse, it is a very important issue to maintain stable quality of the mat used. Rental mats are often used in the vicinity of the entrances and exits of stores and offices due to the purpose of use such as dust control function and accent at the entrance, and not only receive direct sunlight while being used, When it is exposed to earth and sand, rainwater, etc. and washed after collection, it is washed with a strong alkali to sufficiently remove strong stains, so the abrasion resistance of the pile and the fastness of dyeing are carefully considered. Needs to be done. As the pile material of rental mats, natural fibers and various synthetic fibers such as cotton, vinylon, nylon, polyester, and acrylic have been used, but recently, especially abrasion resistance, elastic recovery, and color development are excellent. A relatively large amount of nylon fiber is used, and this trend is expected to continue in the future.

(Problems to be solved by the invention) Even in the nylon pile rental mats currently in practical use, they are exposed to direct sunlight, earth and sand, and rainwater in the same manner as described above, and after being collected, they are sufficiently stained with strong dirt. In order to remove it, it is washed with a very strong alkali, but in order to maintain the above stable quality, the nylon pile is mainly composed of acid dyes and metal-containing dyes, which are relatively durable. At present, dyes are selected, and natural tannins and various synthetic fixing agents are treated to deal with them. However, the combination of these acid dyes and metal-containing dyes with various natural and synthetic fixing agents is a treatment that is considered to be excessive quality in general use, but rental mats used for the above-mentioned uses In the above, it is not excessive, and on the contrary, it often becomes a nonstandard product due to fading before the pile is consumed.

Therefore, the object of the present invention is to solve the above-mentioned drawbacks, and to provide various types of hard waxes such as light fastness and wash fastness, and also excellent in texture, decorative effect and dust collecting property. It is to provide a rental shoe wipe mat using pile.

(Means for Solving Problems) According to the present invention, a shoe including a base cloth, tufted pile threads on the base cloth, and an elastomer backing layer applied to the pile thread stitch surface of the base cloth. In the wiping mat, the pile yarn is made of undiluted colored nylon having a dispersed colorant particle size of 5 μm or less, and each filament of a single yarn has the following formula. S ₁ is the cross-sectional area of the filament, S ₀ is the area of the circumscribing circle with respect to the cross-section of the filament, and the irregular cross-section ratio (R _s ) defined by is in the range of 10 to 60%. A rental shoe comprising a crimped multifilament single yarn, which is formed by tufting and crimping a base fabric using a twisted yarn having a lower twist of 100 to 300 times / m and an upper twist of 80 to 250 times / m. A wiping mat is provided.

The crimpable multifilament used in the present invention preferably has a single fiber diameter of 10 to 200 μm.

(Function) Nylon produced by the undiluted coloring method has the characteristics of its production method. As a coloring matter to be added, in addition to the dye used in the dyeing method, a pigment having excellent light resistance can also be used. From this point of view, it is possible to select from a wider range of dyes than the dyeing methods that have been conventionally supported. In addition, since the dye is dispersed throughout the fiber structure in a stable state like the colored plastic products, compared to the conventional dyeing method from the viewpoint of washing resistance and light resistance required for the rental mat. There is a marked difference, and it can be said that nylon by the undiluted solution coloring method is very effective and suitable for such applications.

In general, the undiluted solution coloring method is well known as a kind of dyeing method for synthetic fibers, and there have been examples in the past where it was put into practical use in school clothes, training wear, etc. Rental mats made of thread have been developed.

However, the undiluted colored nylon fiber is not suitable for use in a shoe-wiping mat, which requires a decorative effect, an audible effect (accent), fashionability, etc., because its color tone is monotonous and gives a cheesy color.

In the present invention, undiluted colored nylon is used as the pile yarn to tuft into a base fabric using a crimped multifilament monofilament yarn in which each filament of the monofilament has a modified cross section, and then crimp the undiluted solution. While maintaining the excellent dyeing fastness of nylon as it is, it has succeeded in remarkably improving the decorative effect such as texture, color and the like, dust collecting property, and further the durability of tuft yarn. That is, undiluted colored nylon as a modified cross-section filament,
By forming minute irregularities on the surface and forming numerous fine random bends by twisting and crimping the plied yarn, a wide variety of light scattering effects are imparted, which gives a deep and solid color tone. Is obtained. Also, by providing crimping to the multi-filament yarn of multi-filament yarn of modified cross-section nylon filament, burning setting and crimping occur at the same time, the durability of the pile yarn is remarkably improved, and the texture of the mat pile is further improved. Is significantly improved, and the dust collection properties such as the adsorption of dust to the dust adhering to the shoe sole (dust adsorption) and the retention of dust adsorbed on the pile (dust retention) are also remarkable. improves. Moreover, according to the present invention, since the mat pile is composed of the crimped multifilaments of the modified cross section filament of the undiluted colored nylon (hereinafter simply referred to as the deformed cross section crimped multifilament), a considerable amount of dust is attached to the pile yarn. Even when the rental condition is maintained, the appearance characteristics such as excellent coloring effect are maintained, and the unexpected effect that the commercial value and performance are not impaired from the beginning to the end of the rental period can be obtained.

In the undiluted colored nylon, it is important that the particle size of the dispersed colorant is 5 μm or less so that the pile strength and the abrasion resistance are not deteriorated even when the number of rental cycles of the shoe wiping mat is increased.

Further, the modified cross-section ratio (R _s ) of the filament is 10 to 6
The range of 0% is also important for the purpose of the present invention. That is, if the modified cross-section ratio (R _s ) is smaller than the above range, the strength and wear resistance of the pile tend to be remarkably reduced, while if it is larger than the above range, the texture and color feeling are preferable, and the dust trapping is achieved. Collectivity also becomes lower than that in the above range.

In the present invention, the single yarn of the multi-filament having a modified cross-section is used as a twisted yarn for tufting. The lower twist of the twisted yarn is 100 to 300 times / m and the upper twist is 80 to 2
It is also important to set the range to 50 times / m in order to obtain a deep and solid color tone and to impart the durability of the pile yarn. That is, when the twist is less than the above range, the strength and the durability of the pile yarn are not suitable for the rental shoe wiping mat, and the color feeling is deteriorated. On the other hand, if the twist is more than the above range, the texture is deteriorated, and the dust collecting property of the shoe wiping mat is also deteriorated.

(Preferred Embodiment of the Invention) In FIG. 1 showing a cross-sectional structure of a shoe-wiping mat of the present invention (hereinafter sometimes simply referred to as a mat), the mat is a base cloth 1 and a mat pile yarn tufted into the base cloth. 2 and the backing 3 made of elastomer provided on the side opposite to the pile surface of the base cloth 1.
However, it is characterized in that it is composed of a crimped multi-filament having a modified cross section of undiluted colored nylon described below.

FIG. 2 shows an example of the cross section of a single yarn in the undiluted colored nylon irregular cross section crimped multifilament. Each single yarn 4 has a trilobal type cross section, and the inside is It consists of a continuous nylon phase 5 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. When the dispersed particle size is larger than the above range, the abrasion resistance and strength required for the mat pile are required. Etc. tend to be damaged. The monofilament diameter of the filament is generally 10 to 200 μm, and particularly 20 to 10 μm.
Within the range of 0 μm, it is desirable from the viewpoint of pile fluffing, dust collecting property and texture, and if it is smaller than the above range, the pile tends to sleep and the dust collecting property tends to be worse than that in the above range. There is. On the other hand, if the thickness is larger than the above range, the texture tends to be poor, and the dust retention tends to be lower than that in the range.

The modified cross-section crimped multifilament yarn used in the present invention is
For the purpose of the present invention, it is preferable that each filament has a modified cross-sectional area ratio (R _s ) defined by the above formula (1) in the range of 10 to 60%, particularly 20 to 50%. That is, when the R _s value is larger than the above range, the deep color feeling tends to be lost, and the texture, the dust collecting property, and the appearance characteristics after dust adhesion tend to be deteriorated. On the other hand, R _s
If the value is smaller than the above range, abrasion resistance and fiber strength tend to be lower than those within the above range.

The content of the coloring agent per nylon gives a desired coloring to the multifilament and varies depending on the kind of the coloring agent, but it is generally 0.05 to 10% by weight, particularly 0.1% by weight.
It is preferable to be in the range of 5 to 5% by weight. As the colorant, all of organic pigments and inorganic pigments that can be dispersed in the above-mentioned dispersed particle size can be used, and suitable examples thereof are as follows.

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

Yellow Pigment Zinc Yellow, Cadmium Yellow, Yellow Iron Oxide, Mineral Fast Yellow, Nickel Titanium Yellow, Navels Yellow, Naphthol Yellow S, Hansa Yellow G, Hansa Yellow 10G, Benzidine Yellow G, Benzidine Yellow GR, Quinoline Yellow Lake, Permanent Yellow NCG, Tartrazine Rake.

Orange pigments molybdenum orange, permanent orange GTR, pyrazolone orange, vulcan orange, indanthrene brilliant orange RK, benzidine orange G, indanthrene brilliant orange GK.

Red pigment Bengal, cadmium red, red lead, mercury cadmium sulfide, permanent red 4R, resole red, pyrazolone red, watching red calcium salt, lake red D, brilliant carmine 6B, eosin lake, rhodamine lake B, alizarin lake, brilliant carmine 3B.

Purple pigment Manganese purple, Fast violet B, Methyl violet lake.

Blue pigment Navy blue, cobalt blue, alkali blue lake, Victoria blue lake, phthalocyanine blue, metal-free phthalocyanine blue, phthalocyanine blue partially chlorinated compound, farst sky blue, indanthrene blue B
C.

Green pigment chrome green, chrome oxide, pigment green B,
Malachite Green Rake, Juanal Yellow Green G.

White pigment Zinc white, titanium oxide, antimony white, zinc sulfide.

As nylon, nylon 6 (polycaprolactam), nylon 66 (polyhexamethylene adipamide)
A general-purpose polyamide such as is used, and the compounding of the pigment into the nylon is any method known per se, for example, a method of adding a colorant before polycondensation, a method of addition during polycondensation,
A method of mixing a colorant into nylon after polymerization by a masterbatch method is appropriately adopted.

The shape of the modified cross-section yarn is not limited to the trilobal type, and may be, for example, a cocoon type, a four-leaf type, a triangular type, a quadrangular type, or the like.
A profiled yarn is obtained by extrusion through a correspondingly shaped spinneret. Means for imparting latent crimpability to the nylon filament is also known per se, for example,
Filament extruded concentrically with two types of polymers with different hot water shrinkability, side by side with these two types of polymers
Used are those which are bonded in a side relationship, those which are externally strained on the side surface of the filament, and those that have been subjected to crimping processing and then heat set under tension at a temperature lower than this processing temperature.

In the present invention, as the crimpable multifilament, the number of burns of the plied yarn (times / m) is 100 to 300 Z in the lower twist.
(S), upper twist 80 to 250 S (Z) is used. When such a twisted yarn is used, the cut surface of the mat pile and the side surface of the pile yarn can be seen to give a droopy appearance, which not only improves the appearance characteristics but also has a good texture and shoes. Excellent durability, dust absorption and dust retention as a wiping mat. Generally 2 to 4 single yarns
It is preferably a twisted yarn obtained by twisting together a book. The crimpable multifilament should have a fineness of generally 500 to 5000 denier, especially 1000 to 4000 denier.

As the base material for tufting the multifilament yarn, any material such as non-woven fabric, woven fabric, knitted fabric or the like is used. As the non-woven fabric, staple fibers or filaments such as polyester fiber and polyamide fiber are formed into a paper, and an adhesive,
A thin sheet integrated by embossing or the like is used, and as the woven or knitted fabric, a woven fabric having a relatively low woven density, such as gauze, gauze, or a net-shaped one having a small knitting density is preferably used. It The gauge is 1 gauge
/ 4 to 1/10 is preferable, and 5 stitches / inch to 15 stitches / inch is preferable.

The elastomer backing can be any of those conventionally used for this type of mat, such as SBR, NBR,
Rubbers such as chloroprene rubber, soft vinyl chloride resin,
Thermoplastic elastomers such as urethane elastomers and styrene-butadiene block polymer elastomers are used. These backings can be produced by coating the latex of the above-mentioned elastomer and drying or curing them, or by superimposing the unvulcanized sheet of the rubber and the stitch surface of the mat, heat bonding and vulcanization or crosslinking. It is also manufactured by performing. The thickness of the elastomeric backing is generally in the range 0.01 to 3 mm, especially 0.1 to 2.5 mm. That is, if the thickness is 0.5 mm or less and it is relatively thin, it can be used in combination with the mat base.
The above thick one is used alone as an integrated mat.

The mat pile formed by tufting is subjected to crimping by aligning its ends. This crimping treatment can be carried out simultaneously with the above-mentioned curing or vulcanization of the elastomer, or can be carried out in a separate step. Generally, the crimping treatment is carried out at 70 to 200 ° C., especially 80 to 17 ° C.
It can be carried out at a temperature of 0 ° C.

In the present invention, it is desirable that the pile length after crimping treatment 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 non-uniformly colored crimped multifilament yarn of undiluted colored nylon as the pile yarn of the shoe-wiping mat, the undiluted colored yarn has excellent washing fastness and light fastness. While maintaining the degree, etc., it is possible to remarkably improve the decorative effect such as texture, deep color tone, etc. and the dust collecting property, and especially when dusts adhere to the pile yarn,
Unexpected effects such as excellent appearance characteristics and performance are maintained.

(Examples and Comparative Examples) Example 1 Pile: tri-lobal type BCF nylon (nylon 66) undiluted colored yarn Deformed cross-section area ratio 30% Undiluted colored filaments Multifilament 1300 denier consisting of 68 pieces of 19 denier is twisted 2 times, undertwisted (twisted multifilament) 170 times / m, Top twisted (twisted multifilaments are twisted in opposite directions) 170 times / m,
Heat set Base fabric: Polyester plain woven fabric Weight 200g / m ² Tuft standard: Gauge 5 / 32inch Stitch 10 pieces / inch Pile height 9mm Cut pile Matte fabric NBR latex (solid content 46%) 1000g / m ²
Backing was performed to prepare mats of four colors of red, green, gray and black.

These 4 mats have a fade meta of 83
A light resistance performance test was conducted at ° C. The results are shown in Table 1.

Comparative Example 1 Pile: BCF Nylon (nylon 66) Uncolored yarn Deformation area ratio 30% Multifilament 1300 denier consisting of 68 filaments of 19 denier 2 strands twisted 170 times / m Top twist 170 times / m Heated Set In the same manner as in Example 1, the pile fabric was tufted and cut piled on the same base fabric as in Example 1 to prepare a mat original fabric.

After matte fabric was dyed with an acid dye using a Winth dyeing machine, it was treated with 5% of the synthetic fix agent based on the weight of the pile, and red, green, gray and black were treated in the same manner as in Example 1 below. Four color mats were prepared.

With respect to these four mats, a light resistance performance test was conducted at 83 ° C. with a fade meter in the same manner as in Example 1. The results are shown in Table 1.

Example 2 and Comparative Example 2 For each mat obtained in Example 1 and Comparative Example 1, an undyed mat prepared in the same manner as in Example 1 using the undyed mat raw sheet before dyeing in Comparative Example 1 was used. The washing test was done as follows. The results of discoloration of each mat and staining of the undyed mat are shown in Table 2.

Testing machine: Round odometer Detergent: Monogen 170T (0.5g /) Bath ratio: 1:30 Repeat 60 times x 30 minutes 5 times From Table 2, it was found that no colorant flowed out in the cleaning liquid of the stock solution colored product, and good results were obtained in all of discoloration and contamination.

Example 3 and Comparative Example 3 Composition of mat of Example 3 Pile: Tri-Roval type BCF nylon (nylon 66) undiluted colored yarn 35% modified cross-sectional area ratio disperse colorant red particle size 1 μm content 1.3 wt% filament 21 denier 2 pieces of multifilament 1450 denier combined with 68 pieces, lower twist 150 times / m,
Top twist 220 times / m, heat set Base fabric: Polyester plain woven fabric (Basis weight 200g / m ² ) Tuft: Basis weight 680g / m ² Pile height 10mm Cut pile backing: NBR latex Coating amount 900g / m ² (solid 46% min) Mat composition of Comparative Example 3 Pile: 100% vinylon (7th count, 4 twists) Base fabric: Polyester plain woven fabric (Basis weight 200g / m ² ) Tufts: Basis weight 700g / m ² Pile height 10mm cut Pile backing: NBR latex Coating amount 900 g / m ² (solid content 46%) The mats of Example 3 and Comparative Example 3 were each 70 cm ×
The mat was cut to 85 cm, and 60 g of liquid paraffin oil was spray-coated on the mat of Comparative Example 3 for dust control.

These mats were laid for 3 days at the entrances of business establishments where about 1,000 people enter and leave each day, the weight change of the mats was measured, and the amount of collected dust was measured.

Mat of Example 3: 21 g Mat with liquid paraffin of Comparative Example 3 applied: 23 g The mat of the trilobal-type undiluted colored nylon of Example 3 showed the same dust collection and retention as the dust control mat of Comparative Example 3, Furthermore, while the matte of Comparative Example 3 has an unsightly state in which the matte of the matte is blackened due to the wetting action of oil, the matte of Example 3 has almost no difference from that before the test because no oil treatment is performed. Without coloring effect was maintained.

Example 4 and Comparative Example 4 Mat pile of Example 4: Trilobal type BCF nylon (nylon 66) undiluted colored yarn 40% modified cross-sectional area ratio disperse colorant 1.3 μm containing red particle size 1 μm 68 denier filaments Multi-filament 1300 denier 2 strands twisted 240 times / m, twisted 170 times / m, heat set Base fabric: Polyester non-woven fabric (Basis weight 120 g / m ² ) Tuft: Unit weight 780 g / m ² Pile height 10 mm cut Pile Cut the mat original fabric with the above composition into 87cm x 72cm, 1.5m
Using an unvulcanized NBR sheet having a thickness of m, press backing was performed to produce an integrated mat having NBR ears having a width of 1.5 mm in the periphery.

Mat Pile of Comparative Example 4: BCF nylon (nylon 66) Deformation cross-section area ratio 40% Multifilament 1300 denier with 68 filaments of 19 denier twisted 2 times lower twist 240 times / m, upper twist 170 times / m, heat Set Base fabric: Polyester non-woven fabric (Basis weight 120 g / m ² ) Tuft: Same as in Example 4 Pile height 10 mm Cut pile Mat original fabric of the above composition was dyed with a wince dyeing machine using a gold dye (red). Thereafter, a synthetic fixing agent of 5% based on the weight of the pile was treated and cut into 87 cm × 72 cm, and in the same manner as in Example 4, an integrated mat having NBR ears with a width of 1.5 mm was produced.

These mats were laid at the entrance of a supermarket for about 2000 people per day for 1 week, laid for 1 week after washing, and washed again 10 times, but the degree of discoloration is specified in JIS L 0804. It was measured on a discolored and faded gray scale. The result is as follows.

Mat of Example 4 Grade 4 Mat of Comparative Example 4 Grade 2 to 3 Even after 10 times of repeated use, the discoloration and fading of the undiluted colored nylon is very small and stable, which is a very advantageous material as a rental material. .

[Brief description of drawings]

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

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Michio Yokokoshi 1-6-24 Nakatsu, Oyodo-ku, Osaka City, Osaka Prefecture Duskin Co., Ltd. (72) Naoya Nakazawa 1-6-24 Nakatsu, Oyodo-ku, Osaka City, Osaka Prefecture No. 56 Duskin Co., Ltd. (56) Reference JP 57-188230 (JP, A) JP 62-62941 (JP, A) JP 29-4012 (JP, B1) JP 59-34815 ( JP, B2)

Claims (2)

[Claims] 1. A shoe wipe mat comprising a base cloth, tufted pile threads on the base cloth, and an elastomer backing layer applied to the pile thread stitching surface of the base cloth. Each filament made of undiluted colored nylon with a particle size of 5 μm or less S ₁ is the cross-sectional area of the filament, S ₀ is the area of the circumscribing circle with respect to the cross-section of the filament, and the irregular cross-section ratio (R _s ) defined by is in the range of 10 to 60%. Crimping multifilament single yarn having lower twist of 100 to 300 times / m and upper twist of 80 to 25
A rental shoe-wiping mat, which is formed by tufting and crimping a base fabric using a twisted yarn of 0 times / m. 2. A crimpable multifilament of 10 to 200.
The shoe-wiping mat according to claim 1, which has a monofilament diameter of μm.