JPH075403U - Insole - Google Patents

Abstract

(57) [Summary] [Purpose] To provide an insole having a practical deodorant function, which has both fast-acting and long-term sustainability. [Structure] An intermediate layer is a deodorant sheet layer mainly composed of copper carboxymethyl cellulose fiber, metal phthalocyanine-carrying fiber and pulp fiber, in which 10 to 30% by weight of synthetic fiber made of polyethylene or polypropylene is mixed,
A composite sheet in which a nonwoven fabric made of polyethylene or polypropylene is laminated on both sides of the deodorant sheet layer by a hot-melt method.
And a hole diameter of 0.5 to 3 mm on the entire surface of the composite sheet.
Establish a hole.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an insole having an antibacterial / deodorant function.

[0002]

[Prior art]

 There are many reports on insoles with deodorant function. For example, in Japanese Utility Model Laid-Open No. 63-88103, a web of heat-adhesive fibers is formed on both sides of a deodorant layer in which a deodorant fiber carrying a metal phthalocyanine and a heat-adhesive fiber are mixed at a ratio of 50:50. Are stacked and heat-formed to obtain. Further, Japanese Utility Model Application Laid-Open No. 63-175407 describes that a copper-supporting fiber is used as a deodorant fiber in the same production method as the above-mentioned publication.

[0003]

[Problems to be solved by the device]

 However, when the metal phthalocyanine-supported fiber of Japanese Utility Model Laid-Open No. 63-88103 is used, the deodorizing function has a long-term sustainability, but the deodorizing function has a short-term effect. Further, when the copper-supported fiber of Japanese Utility Model Laid-Open No. 63-175407 is used, the deodorizing function has a rapid effect and long-term sustainability, but it cannot be said to be suitable for practical use. The present invention provides a shoe insole having a practical deodorant function that is both fast-acting and long-lasting.

[0004]

[Means for Solving the Problems]

 In the deodorant material for insoles, the present inventors have proposed a combination of a low-substituted carboxymethylcellulose copper complex and a metal phthalocyanine octacarboxylic acid-carrying cellulose derivative to provide a fast-acting and long-lasting effect. It has a practical deodorant function that also combines the properties of a deodorant sheet. It also gives a deodorant sheet a practical level of strength, and is a three-layer laminated composite sheet made of a non-woven fabric made of polyethylene or polypropylene and a deodorant sheet. -In order to secure the strength of the deodorant sheet and to maintain the deodorant performance and comfort of the composite sheet, the material composition of the deodorant sheet is a synthetic pulp having a heat melting property such as polypropylene or polyethylene. It is necessary to mix in the range of up to 30% by weight, and in order to impart hygroscopicity to a shoe insole in which a non-woven fabric made of polyethylene or the like is formed in the outer layer, a deodorant sheet corresponding to the intermediate layer is used. Has led to the present invention found that a pulp consisting of large cellulose superior and surface area hygroscopicity may be provided a hole diameter 0.5~3mm together is mainly. That is, the present invention uses the deodorant sheet layer containing copper carboxymethyl cellulose, metal phthalocyanine-bearing fiber and pulp fiber as the intermediate layer, in which 10 to 30% by weight of synthetic fiber made of polyethylene or polypropylene is mixed. A shoe having a composite sheet in which a nonwoven fabric made of polyethylene or polypropylene is laminated on both sides of the deodorant sheet layer by a hot-melt method, and a hole having a hole diameter of 0.5 to 3 mm is provided on the entire surface of the composite sheet. It provides an insole.

The deodorant sheet used as the intermediate layer of the present invention is mainly composed of copper carboxymethyl cellulose-based fiber, metal phthalocyanine-carrying fiber and deodorant pulp and pulp fiber having deodorant performance, and further has sheet strength. For maintenance, 10 to 30% by weight of synthetic fiber made of polyethylene or polypropylene is required in the deodorant sheet. The above-mentioned copper carboxymethyl cellulose fiber may be, for example, one described in JP-A-63-270900, which is a complex in which copper is adsorbed on carboxymethyl cellulose fiber, and the degree of carboxymethyl group substitution is From the processing characteristics of the sheet, 0.35 or less is preferable, and even those having an extremely low degree of substitution of 0.1 or less are sufficient in deodorant and antibacterial functions. Compared to conventional activated carbon that is often used to prevent malodor, copper carboxymethyl cellulose fiber has a weaker malodor removing effect in a humid atmosphere, whereas low-substituted copper carboxymethyl cellulose is less effective. In the case of fiber, the deodorizing effect is strong in a humid environment, and the antibacterial effect of copper is exerted, so that the antibacterial function is also imparted. As the metal phthalocyanine-supported fiber, a metal phthalocyanine derivative or a metal phthalocyanine-substituted derivative having a central metal made of a heavy metal such as iron or cobalt is preferably used, for example, supported on a fiber such as a cellulosic fiber. A metal phthalocyanine (substituted) derivative has a function of repeatedly undergoing oxidation / reduction similar to an enzymatic reaction due to a reaction with oxygen in the air, and oxidation / removal of a malodorous substance continues repeatedly. Therefore, compared with, for example, activated carbon, The effective period for removing odor is permanent. Although the present invention uses the above-mentioned copper carboxymethylcellulose fiber and metal phthalocyanine-supporting fiber as the deodorant material, the deodorizing function for a short time is mainly due to the deodorizing function of the copper carboxymethylcellulose fiber having a fast-acting deodorizing function. Since it depends on the odor ability, the amount of the metal phthalocyanine (substitution) derivative, which is practically expensive, carried on the fiber is 1. 0% or less is sufficient. Further, it is possible to add a pulp-supporting pulp having a deodorant / antibacterial function such as a pulp fiber supporting a colloid such as copper hydroxide or a fiber comprising a complex of copper ion and cellulose. As the above pulp fibers, pulp for papermaking and pulp for diapers are preferable, and fibers such as rayon may be mixed if necessary. Further, short fibers such as cellulose fibers may be mixed if necessary to improve the sheet strength. The above-mentioned synthetic fibers are those which do not impair the deodorizing performance and are suitable for the heat melting method, and ordinary polyethylene, polypropylene and the like are used. Preferably, it is the same as the non-woven fabric laminated on the deodorant sheet of the present invention. The synthetic fiber is preferably 10 to 30% by weight in the deodorant sheet, and if it exceeds 30% by weight, the synthetic fiber melted at the time of adhesion by the heat melting method covers the deodorant component, and the deodorant performance is deteriorated. If it is less than 10% by weight, the strength of the insole is difficult. The deodorant sheet as the intermediate layer of the present invention can be formed by a known wet method or dry method, in which case the paper strength of the polyacrylamide or its derivative polymer / poval / polyclar polymer and synthetic pulp is used. It is preferred to use a potentiator. The insole of the present invention comprises a non-woven fabric made of polyethylene or polypropylene laminated on both sides of the deodorant sheet, and then bonded by a heat fusion method to form a composite sheet. It can be obtained by forming a hole having a diameter of 0.5 to 3.0 mm, preferably 1.5 to 2.5 mm on the entire surface within a range of 5 to 30% of the total area, and processing it into a predetermined design.

[0006]

[Example] A pulp mixture comprising 1 part of copper CMC, 0.5 part of 0.5% iron phthalocyanine-supporting pulp (hereinafter referred to as PC pulp), 2 parts of pulp, and 1 part of polypropylene (PP) synthetic pulp was formed into paper. Then, a deodorant sheet was obtained. Next, a polypropylene (PP) non-woven fabric was laminated on both sides of the obtained deodorant sheet and laminated by a hot melting method to obtain a composite sheet. After making a circular hole having a diameter of 2 mm on the entire surface of the obtained composite sheet, the sheet was cut out in a predetermined mold to produce a shoe insole. Further, the composition was changed as shown in Table 1, and the insole was produced by the same method as described above. Table 1 shows the composition and the evaluation results.

[0007]

[Table 1] Composition Deodorization evaluation (residual concentration) Example Copper CMC PC pearl pearl synthetic pearl non-woven fabric H ₂ S NH ₃ ─────────────────────── ────────────── (0.5% PC) 1 1 (part) 0.5 (part) 2 (part) PP 1 (part) PP <10ppm <10ppm 2 1 0.5 3 PE 1 PE < 10 <10 Comparative example 1 0 0 3.5 PP 1 PP 95 80

[0008]

[Effect of device]

 The shoe insole according to the present invention is formed from a compound-carrying pulp having an enzyme-like reaction such as copper CMC / copper pulp having a fast-acting deodorizing effect and an antibacterial effect, and a phthalocyanine derivative and the like, which is extremely effective in practical use. Has an odor function. In addition, the use of non-woven fabrics and synthetic fibers and perforation to improve breathability have made it possible to efficiently produce insoles with practical strength, durability and comfort. A pair of insoles made in exactly the same manner as the above insoles except that the insoles of the present invention and the deodorant are not used for the monitor are provided for one month, and one shoe is worn at the same time. Upon request and an questionnaire survey of the feeling of use one month later, it was reported that the feeling of use of the insole of the present invention was extremely effective in terms of deodorization. Regarding the deodorizing effect of the insole of the present invention, the removal rate of each of the typical malodorous substances such as hydrogen sulfide and ammonia gas was measured and the effect was confirmed. The deodorization was evaluated by placing the sample in a desiccator A having a capacity of 11 L shown in FIG. 3, and after depressurizing, inhaling 11 L of air containing malodorous component containing 100 ppm of hydrogen sulfide or ammonia gas from Tetrapack B 10 hours later. The residual concentration of malodorous components in the desiccator was measured with a gas detector tube.

[Brief description of drawings]

FIG. 1 is a schematic view showing a form of a shoe insole of the present invention.

FIG. 2 is a schematic view showing a cross section of the insole of the present invention.

FIG. 3 shows an apparatus used for deodorant evaluation in Examples.

[Explanation of symbols]

 1 Shoe insole 2 Hole 3,5 Nonwoven fabric 4 Deodorant sheet S sample

Claims (1)

[Scope of utility model registration request] 1. An intermediate layer is a deodorant sheet layer mainly composed of copper carboxymethyl cellulose fiber, metal phthalocyanine-carrying fiber and pulp fiber mixed with 10 to 30% by weight of synthetic fiber made of polyethylene or polypropylene. A non-woven fabric made of polyethylene or polypropylene is laminated on both sides of the deodorant sheet layer by a hot-melt method to form a composite sheet, and the entire surface of the composite sheet has a pore size of 0.5 to 3
Insole with mm holes.