JP2001276201A - Deodorant - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a deodorant which exhibits the same degree of deodorizing effect as marketed deodorants containing cyclodextrins as active ingredients and scarcely stiffens objective cloth. SOLUTION: This deodorant is composed of an aqueous solution containing trehalose as an essential ingredient at a concentration of 0.1-5.0 wt%.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deodorant suitable for deodorizing cloth products which cannot be washed frequently and for preliminarily deodorizing underwear such as underwear. Recent houses have improved airtightness, and odors generated in the home, such as tobacco odor, sweat odor, body odor, grilled meat odor, grilled fish odor, etc., are indoors, and fibers of fabric products such as curtains, carpets, sofas, beddings, etc. The odor easily adheres to the space and remains forever. In addition, sweat odor and body odor tend to accumulate in clothes worn when metabolism is active, such as student clothes and sportswear. Also, in summer, the underwear you are wearing also has a sweaty smell and you will feel uncomfortable.

[0002]

2. Description of the Related Art As a method of removing or suppressing odor of a conventionally used fabric product, a method of masking an odor with a fragrance, a method of reducing adsorption of a malodorous substance by an adsorbent, and a method of reacting with a malodorous substance are used. To remove the odor. Recently, deodorants that spray an aqueous solution of cyclodextrins on an object, for example, a curtain surface, and include odor components in the cyclodextrins are commercially available.
It is consumed in large quantities.

[0003]

The deodorant containing cyclodextrin as an active ingredient has a deodorizing effect,
As the cyclodextrin is sprayed in large quantities and frequently onto the fabric, the fabric becomes increasingly stiff and uncomfortable. The present invention has the same deodorizing effect as a commercially available deodorant containing cyclodextrins as an active ingredient,
Moreover, it is an object of the present invention to provide a deodorant in which the sprayed fabric has a small firmness.

[0004]

The deodorant according to the present invention comprises:
It is an aqueous solution containing trehalose as an essential component.

[0005] Trehalose is composed of two molecules of α, α.
These are non-reducing disaccharides having -1,1 bonds. Suitably, the concentration of trehalose in the aqueous solution is 0.1 to 5.0% by weight, preferably 0.5 to 2.0% by weight.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In addition to trehalose as an essential component, as a commercial product, a water-soluble antimicrobial preservative is 0.0001 to 0.5% by weight, preferably 0.001 to 0.5% by weight.
In addition to 0.2% by weight (as an active ingredient), a low-foaming surfactant is used in an amount of 0 to 3% by weight, preferably 0.05 to 0.5% by weight, and / or a low-grade surfactant in order to accelerate the penetration into the fabric. 0 to 5% by weight of a polyhydric alcohol, propylene glycol or polyethylene glycol, and 0.0001 to 0.0
The content is preferably about 09% by weight. Table 1 shows an example of a specific prescription.

[0007]

[Table 1]

[0008] Such an aqueous solution containing trehalose as an essential component has a deodorizing effect comparable to that of a commercially available deodorant containing cyclodextrins as an active ingredient, and has a low tenacity of the target fabric.

Hereinafter, the results of the deodorizing test and the test of the degree of firmness of the product of the present invention will be described. First, the deodorizing test method will be described.

[0010] As shown in FIG. 1, 10 cm of cloth is first placed on the cloth 1 on which the odor that all panelists can perceive is stained.
Attach two packing gum tapes (width 5 cm) 2 at intervals and then attach the same packing gum tape at 10 cm intervals in the vertical direction to form two or more blocks with 10 cm square fabric exposed, The block was designated as a deodorizing test area 3, and the adjacent block was designated as a deodorizing test control area 4. A plurality of deodorizing test areas 3 and a plurality of deodorizing test control areas 4 were alternately provided according to the size of the test cloth 1. Before spraying the deodorant on the deodorization test area 3, a plastic plate 8 is placed and fixed on the deodorization test control area 4 as shown in FIG. 2 so that the sprayed deodorant does not cover the adjacent area 3. I made it.

[0011]

EXAMPLES AND COMPARATIVE EXAMPLE The deodorant of the example or the comparative example was sprayed on the deodorizing test area 3 of the fabric thus treated.
Using the same spray container as a commercially available deodorant, spray the nozzle 3 times for thin fabrics and 5 times for thick fabrics with the nozzle tip of the spray container about 20-30 cm away from the fabric ground. did. The sprayed fabric was air-dried for 12 hours or more away from direct sunlight, and then the plastic plate fixed on the deodorization test control area 4 was removed. The deodorization test area 3 and the deodorization test control area 4 were sniffed and compared. Paneler 2
The deodorizing effect was determined by 0 persons. Table 2 shows the determination results.

[0012]

[Table 2]

From the results shown in Table 2, it was determined that the compositions of the examples had the same deodorizing effect as the compositions of the comparative examples.

Since there is no standard method for the degree of firmness of the fabric, the method devised by the present inventors was used. The basic idea is to determine the hardness of the fabric by measuring how the fabric hangs with one side held in the horizontal direction. The larger the sag, the softer the fabric, and the smaller the sag, the harder the fabric. This method will be described with reference to FIGS.

A large number of fabrics of the same material cut to the same length and width, for example, 100 mm in length (A + B + C in FIG. 3) and 60 mm in width (D in FIG. 3) were prepared. In this case, care was taken so that the front and back of the fabric and the texture direction were the same. The four cloths were stacked as a set for each type of test solution, and one corner was pinched with tweezers and the whole was immersed in the test solution for one minute. One minute after soaking, pull up the fabric, hang it with a pinch at the corner while holding 4 sheets, leave it as it is for 3 minutes, drain it, then line it up on a bath towel laid on a hot carpet and leave it for 5 hours or more to complete Dry and test piece 5
And As shown in FIG. 3, two test pieces of the same set are arranged so that long side edges are parallel to each other.
Affix a label 6 for a tag of 0 mm and length of 58 mm to 2
The sheets were connected to form a measurement sample. The reason why the label is attached is to apply an appropriate load and to maintain the flatness of the attached portion due to the rigidity of the label paper and to easily measure the hanging angle. The reason why the two test pieces are set as one set is to correct the variation between the test pieces. Since there are four test pieces treated with the same test solution, two sets of two such measurement samples can be prepared for the same test solution, and the degree of firmness was measured for each of them by the following method.

As shown in FIG. 4, the portion of the measurement sample where the fabric is exposed (the side opposite to the label-attached portion A) is sandwiched between horizontal holders 7, 7, and the holders 7, 7
(C in FIG. 3 and FIG. 4) and a portion of only a band-shaped cloth of a fixed width between the portion (C in FIG. 3 and FIG. 4) and the label attaching portion (A in FIG. 3 and FIG. 4). Is fixed so that it remains. A portion of only the fabric in the measurement sample, ie, B in FIGS. 3 and 4
3 according to the hardness of the part, ie, FIG.
4 and the portion C in FIG. 4 hangs down while maintaining the flatness, and the inclination angle α of this portion is measured with a protractor. Assuming that the horizontal state is 0 degrees and the vertical state is 90 degrees, the larger α is, the more flexible and the smaller α, the harder. This B
The width of the portion is appropriately determined according to the type and thickness of the fabric. If the width of B is too wide or too narrow, it is difficult to make a difference. Therefore, it is better to perform a preliminary test to determine the width at which the difference tends to be made. In the following tests, polyester tropical cloth, which is widely used as curtain material, was used, and the width of the portion B was 4
mm. Table 4 shows the measurement results.

[0017]

[Table 3]

As shown in Table 3, the fabric sprayed with trehalose has a lower tenacity than the fabric sprayed with cyclodextrin.

[0019]

EFFECTS OF THE INVENTION A deodorant having the same deodorizing effect as a commercially available deodorant containing cyclodextrins as an active ingredient, and having a low hardness of the target fabric.

[Brief description of the drawings]

FIG. 1 is a diagram for explaining a configuration of a test cloth on which a deodorization test was performed in Examples and Comparative Examples of the present invention.

FIG. 2 is a view for explaining a configuration of a test cloth when a deodorant is sprayed.

FIG. 3 is a diagram showing the shape and configuration of a pair of test specimens for which the degree of firmness was measured.

FIG. 4 is a diagram for explaining a method of measuring the degree of firmness of a fabric performed in Examples and Comparative Examples of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Deodorization test cloth 2 Gum tape 3 Deodorization test area 4 Deodorization test control area 5 Hardness test piece 6 Label for tag 7 Test cloth holder 8 Plastic plate

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yasutaka Makimura 417 Sanno-Higashi, Kamigoka, Chiyoda-cho, Yuraku-gun, Gunma Pref. NN15

Claims (2)

[Claims] 1. A deodorant comprising an aqueous solution containing trehalose as an essential component. 2. The method according to claim 1, wherein the concentration of trehalose in the aqueous solution is 0.1.
The deodorant according to claim 1, wherein the amount is from 5.0 to 5.0% by weight.