JPH01190443A - Deodorizing sheet - Google Patents

Abstract

PURPOSE:To increase continuity by using an oxygen group deodorizer or a deodorizer mainly composed of a vegetable extract containing phytoncide as a deodorizing component and also using chlorinated polyethylene as a binder. CONSTITUTION:As an oxygen group deodorizer, for example, a deodorizer containing papain or chymopapain or the like is used, and as a deodorizer mainly composed of a vegetable extract containing phytoncide, a natural high molecular substance of 15,000-2,300,000mol.wt. extruded from coniferous tree to which an anion activator, glycol group, a special activator host compound or the like is used. As for binder resin, polyethylene containing 30-50wt.% of chlorine high-temperature chlorinated by the regular aqueous suspension method is used. A deodorizing sheet is manufactured by kneading sufficiently such a deodorizing formation and applying on the surface of a base. As much of deodorizer can be contained in chlorinated polyethylene and the deodorizing content is of oxygen group or a biologically activated substance of vegetable extract, the same is quite harmless to human body and continuity of deodorizing effect is high.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a long-lasting deodorizing sheet, and an object of the present invention is to provide a deodorizing sheet that is particularly useful as an insole for shoes.

(Prior Art) Activated carbon and the like have been commonly used to deodorize shoes and automobile interiors, purify air in air conditioners, and deodorize medicines and medical instruments.

Carbonized 11ff, which carbonizes the surface of the fibers, is especially used in the insoles of shoes.
Alternatively, the current practice is to incorporate activated carbon or the like into the fibers to have a deodorizing effect.

(Problems to be Solved by the Invention) However, the current deodorizing method using such a carbon-based adsorbent has a short lifespan due to its small adsorption capacity, and the deodorizing effect disappears in about 2 to 3 days.

This effect is particularly noticeable in humid environments.

As a result of intensive research to solve the above-mentioned drawbacks of the prior art, the present inventors have discovered that when producing a deodorizing sheet, a specific deodorizing component is kneaded into a specific binder resin and applied to the base material. The present invention was completed based on the discovery that the sheet produced by the inventors has a long-lasting deodorizing effect and that the drawbacks of the prior art can be solved.

(Means for solving problems).

In other words, the present invention provides a deodorizing sheet formed by carefully applying a deodorizing composition to a base material, in which an enzyme-based deodorizing agent or a deodorizing agent whose main component is a plant extract containing phytoncitrate is used as a deodorizing component. This is a deodorizing sheet characterized by using chlorinated polyethylene as a binder.

The enzymatic deodorizing agent used in the present invention refers to a deodorizing agent that has the ability of chemical adsorption to cause an addition reaction of malodorous substances using an enzyme, and includes, for example, a deodorizing agent containing papain, chymopapain, and the like. Further, as a deodorizing agent whose main component is a plant extract containing phytonchitite, it is a natural polymeric substance extracted from coniferous trees with a molecular weight of 15,000 to 2,300,000 and an anionic activator.

It contains glycols, special activator host compounds, etc., and has the effect of completely chemically decomposing malodorous substances and converting them into other substances using the neutralization clathration method, and has the effect of adding enzymes to achieve this effect. There are many things that are also combined.

The chlorinated polyethylene used as the binder resin is a substantially amorphous, flexible rubber-like substance, and is usually obtained by chlorinating polyethylene at high temperature by an aqueous suspension method and having a chlorine content of 30 to 50% by weight. Pigments such as titanium oxide and white carbon are usually added to the resin composition, and toluene, methyl ethyl ketone and the like are used as solvents. Pigments, especially white carbon, are effective in increasing the water retention properties of resin compositions.

The amount of deodorant and pigment used is preferably in the range of 100 to 2,000 parts by weight of the deodorant component and 10 to 100 parts by weight of the pigment per 100 parts by weight of chlorinated polyethylene.

As the base material, nonwoven fabrics, paper fabrics, etc. are used, and breathable nonwoven fabrics are usually preferably used for shoe insoles.

The deodorizing sheet of the present invention can be produced by sufficiently kneading the deodorizing composition as described above and applying the mixture to the surface of a base material. 'tz ft' 1fli to the base material is usually approximately 100 to 500 (1# (in terms of dry matter)).

(Functions and Effects) In the sheet of the present invention, the chlorinated polyethylene used as the binder resin can contain large amounts of other components compared to general thermoplastic resins 1, such as polyethylene and polyvinyl chloride. Therefore, a large amount of deodorant can be contained, and the deodorizing effect can be enhanced. Furthermore, the deodorizing component used in the sheet of the present invention is based on enzymes or biologically active substances such as plant extracts, and is completely harmless to the human body and has a long-lasting deodorizing effect.

The resin composition mainly composed of chlorinated polyethylene used in the present invention usually includes white carbon, r! A pigment such as titanium Ii chloride is added, which produces the following effects.

That is, by adding these pigments, when kneaded into a sheet, the porosity of the resin composition increases and air permeability becomes good, making it very effective for use in shoe insoles.

Furthermore, as mentioned above, these pigments produce synergistic effects such as increasing the water retention of the resin composition and activating the biochemical action of deodorants containing enzymes to enhance the deodorizing effect.

The deodorizing sheet of the present invention is useful for various uses other than shoe insoles, such as deodorizing wall coverings, floor coverings, and deodorizing braids.

Next, the present invention will be specifically explained with reference to Examples.

In the examples, %2 parts are based on weight. The analytical values for ammonia and trimethylamine are based on nitrogen. Further, ppm is a unit of capacity.

Example 1 Binder> Chlorinated polyethylene solution 100 parts (chlorinated polyethylene (CI!=35%) 20 parts.

40 parts toluene, 0 parts methyl ethyl ketone) Deodorizer> Enzyme deodorizer 200 parts (product name [Biodash p-500J manufactured by Osaka Soda Co., Ltd.) Pigment> Titanium oxide 5 parts White carbon 10 parts Solvent> Toluene 100 parts Methyl ethyl ketone After sufficiently kneading 100 parts or more of the substance, 150 (1# (
(based on dry weight). Further, a laminated paper was pasted on the back side of this nonwoven fabric using an acrylic adhesive so that it could be bonded when the paper was peeled off. This deodorizing sheet was cut to a width of 20 mm and a length of 1 TrL, and further cut to a length of 100 mm to prepare a sample. This sample is 1
25.1! The solution was placed in a vial with a volume of 100 mL and sealed tightly, and then trimethylamine was injected and the concentration was measured 5 minutes, 10 minutes, and 1 hour later. For comparison, the same sample was made without the deodorizer and measured in the same manner. The initial trimethylamine concentration was 1
, 010 ppm, and was analyzed by gas chromatography. Table 1 shows the results.

Table 1 Example 2 Using the same deodorizing sheet and comparative amount of sample as in Example 1, ammonia was injected instead of trimethylamine and measurements were made in the same manner. The results are shown in Table 2.

The initial ammonia concentration was 200 ppm, and analysis was performed using a colorimetric method.

Table 2 Example 3 A shoe insole sheet was manufactured by the following procedure.

Binder> Chlorinated polyethylene solution 100 parts (chlorinated polyethylene 40 parts, toluene 30 parts).

Methyl ethyl ketone 30 parts) Deodorizing agent> Enzyme deodorizing agent 40 parts (product name [Biodash p-500J manufactured by Osaka Soda Co., Ltd.) Pigment> Titanium oxide 5 parts White carbon 10 parts Solvent> Toluene 100 parts Methyl ethyl ketone 100 parts or more After thoroughly kneading the materials, 75 (I
It was coated to give I/yd. After drying, cut into the shoe size shape (about 25.5cm long), 3.1
Ammonia and trimethylamine were tested in the same manner as in the previous example. Sample gas concentration is ammonia 3001)I)m, trimethylamine 10
It was 0 ppm. The results are shown in Table 3.

Next, for comparison, a commercially available shoe insole sheet (length approximately 25.5cm) using powdered activated carbon was tested for its effect in reducing ammonia and trimethylamine using the same method as above. Obtained the results in the table.

Example 4 A deodorizing sheet was produced in the same manner as in Example 1 except that the following substances were used.

Binder> Chlorinated polyethylene solution 100 parts (chlorinated polyethylene 20 parts, toluene 40 parts).

Methyl ethyl ketone 40 parts) Deodorizer> Phytonchit-containing agent 100 parts (product name [Biodash [)-200J] manufactured by Osaka Soda Co., Ltd.) Pigment> Titanium oxide 10 parts White carbon 20 parts Solvent> Toluene 75 parts Methyl ethyl ketone 75 parts This sheet Using the same method as in Example 1, a mixed gas of trimethylamine and methyl mercaptan was injected as a sample gas, and the concentration was measured at each time using a sample prepared using the same method. Table 5 shows the results.

Note that the initial trimethylamine concentration is iooppm, and the methyl mercaptan concentration is iooppm.

Example 5 The deodorizing sheet produced in Example 1 was used as an insole sheet with a length of 25.5 cm, placed in a scent bag and heat-sealed, followed by ammonia gas (concentration 2 ooppm) 3.1 l!
was enclosed. This was left to stand overnight at very high temperatures, and the residual ammonia concentration was measured using a gas detection tube. After the measurement, the bag was opened and the internal gas was removed. After heat sealing again, ammonia gas 3j was adjusted to the same concentration as before! The sample was sealed and left to stand at very low temperatures, and the residual gas concentration was measured. I repeated the same operations as Zara-Nimo-Meiteki-sama. After performing the above operations, the sheet was lightly scrubbed with a synthetic detergent, thoroughly rinsed with water, and then dried in the shade. After drying, it was placed in the odor bag again and left to stand at room temperature in the same manner as the previous operation, and the residual gas concentration was measured.

Also, acetic acid (100 pE) m) and trimethylamine (1
ooppm) were also subjected to similar operations.

These results are shown in Table 6.

Table 6 As mentioned above, good results were obtained.

Next, for comparison, Table 7 shows the results of measurements conducted in the same manner as above on a commercially available shoe insole sheet (length approximately 25.5 cm) using powdered activated carbon.

Table 7

Claims (3)

[Claims] (1) In a deodorizing sheet formed by coating a deodorizing composition on a base material, a deodorizing agent whose main component is an enzyme deodorizing agent or a plant extract containing phytoncitrate is used as the deodorizing component, and chlorinated polyethylene is used as the binder. A deodorizing sheet characterized by using. (2) The deodorizing sheet according to claim 1, wherein the deodorizing composition contains white carbon and/or titanium oxide. (3) The deodorizing sheet according to claim 1 or 2, wherein the deodorizing sheet is used as an insole for shoes.