JP2001240124A - Bathing agent division pack - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bathing agent division pack for dissolving the bathing agent of a given volume divisionally packed by a hydrolyzing sheet in a bathing hot water without using a measuring spoon. SOLUTION: The bathing agent division pack is characterized by that the bathing agent is packed as a unit by the hydrolyzing sheet formed of a carboxymethylcellulose or a carboxyethylcellulose as a base with a water- insoluble or water-hard-to-dissolve inorganic powder added therein.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathing agent unit packaged with a water-disintegrable sheet.

[0002]

2. Description of the Related Art Generally, a conventional bathing agent is a powdery or granular bathing agent composed of an inorganic salt base composition, or a relatively coarse water-insoluble bathing bath made of herbs, herbs, trees and the like. There are agents. The former is contained in a container made of plastic or the like, or is aluminum-packed for a single use and commercialized as a bath additive. The latter is filled in a packaging bag or the like (so-called tea pack specification) such as a moisture-permeable nonwoven fabric, cloth, or porous paper, and a packaging material laminated with aluminum (so as not to impair the aroma effect or the like). (Aluminum pack).

[0003] Usually, a powdered or granular bath preparation is measured by a measuring spoon or the like before bathing, and a predetermined amount is poured into bath water.
The bath salt is directly shaken out of the mouth of the container and put into bath water for use. However, there is a problem that it is necessary to measure the amount of use each time bathing is performed, which is troublesome.
In order to solve the above problem, there has been a problem that the packaging material which has been used in a single-use aluminum package must be broken at the time of use, so that it takes more time to dispose of the packaging material. In addition, it is difficult to add a predetermined amount of the bathing agent when the bathing agent is directly spouted from the container. Or not.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and it is possible to dissolve a certain amount of a bathing agent individually wrapped in a water-disintegrable sheet in bath water without using a measuring spoon. It is an object to provide a possible bath additive body.

[0005]

The bathing agent package of the present invention comprises a carboxymethylcellulose (hereinafter referred to as "CMC") base material and a water-decomposable sheet into which a water-insoluble or hardly water-soluble inorganic powder is internally added. Characterized by being packed in a unit. Hereinafter, the present invention will be described in more detail.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, a water-disintegratable sheet based on CMC or CEC is used as a bathing agent package, and in particular, water-insoluble or hardly water-soluble inorganic powder is mixed with CMC or CEC base. Water-disintegrable sheets are preferred. The bathing agent packaged with this sheet has good solubility in both the sheet and the bathing agent without deterioration of the sheet and caking of the bathing agent even after long-term storage. In the present invention, the expression “water-disintegrable” is used only because the sheet contains a water-insoluble or poorly water-soluble inorganic powder, and this inorganic powder does not dissolve in water.
The MC or CEC dissolves in the water and the contained bathing agent is released.

CMC or C used in the present invention
EC has a structure in which a part of the hydroxyl group of cellulose is substituted with a carboxymethyl group or a carboxyethyl group, and the degree of substitution (DS) per glucose unit is as follows:
Those having a range of 0.1 to 1.0 are preferred. DS is 0.
If it is less than 1, papermaking is easy, but solubility is poor. On the other hand, when DS exceeds 1.0, the swelling of the fiber is remarkable, making it difficult to make a paper, and is disadvantageous in terms of cost. Preferably, DS is in the range of 0.2 to 0.8, and more preferably, in the range of 0.4 to 0.7.

As the water-insoluble or hardly water-soluble inorganic powder in the present invention, non-metallic inorganic substances, metals, and water-insoluble (poor) -soluble salts are used. Specific examples of these include metal oxides such as aluminum oxide and titanium oxide; silicon carbide,
Carbides such as boron carbide; nitrides such as trisilicon tetranitride and boron nitride; metal hydroxides such as aluminum hydroxide and magnesium hydroxide; mica, feldspar group, silica group, clay mineral, synthetic zeolite, natural zeolite, etc. Silicate minerals; titanate compounds such as potassium titanate and barium titanate; carbonate compounds such as calcium carbonate, barium carbonate, magnesium carbonate and zinc carbonate; sulfate compounds such as barium sulfate, calcium sulfate and strontium sulfate;
Examples thereof include silicate compounds such as zinc silicate, magnesium silicate, calcium silicate, and barium silicate; phosphate compounds such as zinc phosphate; and these may be used alone or in combination of two or more.

Among the above inorganic powders, zeolite, kaolin, talc, activated clay, acid clay, calcium carbonate and titanium oxide are particularly preferred. As the zeolite, A type, X type, Y type and the like are used. The particle size of the water-insoluble or poorly water-soluble inorganic powder is preferably 30 μm or less, more preferably 0.01 to 10 μm. If the particle size is too large, dispersibility with CMC or CEC is not sufficient, and if the particle size is too small, the yield of inorganic powder is not sufficient, and the drainage of papermaking and the like deteriorates. Paper cannot be made.

The inorganic powder includes (a) inorganic powder and (b) CM
The weight ratio with C or CEC is preferably (a) /
(B) = 90/10 to 5/95, more preferably 60 /
40 to 10/90, more preferably 40/60 to 15
/ 85. This ratio is 90/10
When the amount of the inorganic powder exceeds the above range, papermaking becomes difficult, and the strength becomes weak, so that it becomes difficult to use it as a sheet. On the other hand, when the above weight ratio is less than 5/95, the effect of adding the inorganic powder is not sufficiently exhibited, and it becomes slightly difficult to peel off the wire during papermaking, and the obtained sheet-like body becomes slightly hard.

[0011] The water-disintegrable sheet of the present invention is produced by an appropriate method. For example, a water-disintegratable sheet is prepared by dispersing an inorganic powder together with fibrous CMC or CEC in a water-insoluble or poorly water-soluble state in water to form a papermaking raw material, making the paper into a sheet-like wet paper, and then, if necessary. After dewatering the wet paper,
It is manufactured by subjecting a wet paper to a water-solubilizing treatment. At this time, it is preferable to add a coagulant together with the inorganic powder. It is also manufactured by drying the wet paper and then subjecting the wet paper to a water-soluble treatment.

The fibrous CMC or CEC in a water-insoluble (poorly soluble) state includes CMC-H and CEC- in a free acid state.
H, various other salts, for example, CMC or CEC salts in a water-insoluble (poorly soluble) state such as calcium salts, aluminum salts, barium salts, zinc salts, tin salts, and manganese salts, which can be used alone, Alternatively, two or more kinds are used in combination. Among these, acid type, calcium salt type,
Alternatively, a mixed salt type containing a calcium salt is preferable.

Water-insoluble fibrous CM such as CMC-H
C or CEC or, further, inorganic powder is dispersed in water together with other additives such as a flocculant, if necessary, to prepare a papermaking raw material. This papermaking raw material (paper material) is supplied to a wire part (long net portion, circular net portion) of a paper machine such as a fourdrinier paper machine or a round net paper machine to form a wet paper. This wet paper is then pressed (pressing part), dry part (drying part)
, Are sequentially dehydrated and dried to form a sheet.

However, if the wet paper is directly formed into a sheet, the obtained sheet does not show sufficient water solubility or water dissolvability. Therefore, at an appropriate stage, the wet paper is made water-soluble or water-dissolvable by adding an alkali agent by spraying, coating or the like. Examples of the alkali agent include hydroxides such as sodium hydroxide and potassium hydroxide,
Carbonates such as sodium carbonate and potassium carbonate, borates such as borax, phosphates such as dibasic sodium phosphate, silicates such as sodium silicate, and mixtures thereof are used. These alkaline agents are used to prevent the breakage of wet paper,
It is preferably added in the form of an aqueous solution containing an organic solvent such as methanol or acetone. However, depending on the method of addition and the type of the alkaline agent, it may be simply added in the form of an aqueous solution.

The amount of the alkali agent added is such that the wet paper is CMC-H.
Or, when mainly composed of CEC-H, CMC-H or CEC-H contained in wet paper
H neutralization equivalent or more, preferably 1 to 2 neutralization equivalents in consideration of deterioration due to aging of the water-soluble or water-decomposable sheet.
Double the amount is appropriate. When the composition is mainly composed of a metal salt such as CMC-Ca, the pH of the paper after drying the wet paper is adjusted to be in the range of 8 to 12, preferably 8 to 10. desirable. When the wet paper is mainly composed of CMC-H or CEC-H by drying after alkali treatment, CMC-H or CE is used.
When CH is changed to an alkali salt and is mainly composed of a metal salt such as CMC-Ca, the alkali agent adheres to the surface and between the fibers to obtain a water-decomposable sheet.

A bag-like container or the like is made of the above water-disintegrable sheet, and a bath agent is filled therein, or a bath agent is filled between two sheets, and the opening is sealed with an adhesive or the like. Then, by packaging the sheet bath agent, the bath agent individual package of the present invention can be obtained. The thickness of the water-disintegrable sheet is 80-3
About 00 μm is appropriate, and preferably 100 to 150 μm.
μm.

Further, a water-soluble polymer layer having a heat-sealing property is formed on the water-disintegratable sheet to form a laminated water-disintegrable sheet. Can be obtained. Since these laminated sheets have heat-sealing properties themselves, an adhesive such as a heat-sealing agent may be separately used when preparing a container (package) and filling and enclosing a bath agent. It becomes unnecessary and workability is improved.

FIG. 1 shows a laminated water-disintegrable sheet 11 of the present invention.
FIG. 3 is a cross-sectional view showing an example of the structure, in which a heat-sealing water-soluble polymer layer 15 is formed on one surface of the above-mentioned water-disintegrable sheet 13 having CMC or CEC as a base material. The water-soluble polymer layer 15 is a water-soluble polymer having a heat sealing property,
For example, it is formed from polyvinyl alcohol, polyethylene oxide resin, polyvinyl ether, polyvinyl pyrrolidone, and the like.

The water-soluble polymer layer 15 is obtained by forming a heat-sealable water-soluble polymer on a film by a casting method, a melt molding method, or the like, and then forming this film on a CMC or CMC by a dry lamination method or an extrusion lamination method. The film may be laminated and integrated on the water-disintegrable sheet 13 having CEC as a base material, or may be formed into a film on the water-disintegrable sheet 13 by an aqueous solution casting method or the like and laminated and integrated. Further, the water-soluble polymer may be applied to or sprayed on the water-decomposable sheet 13 in a molten state or dissolved in an appropriate solvent. As described above, the water-soluble polymer layer 15 is not necessarily a film-like continuous layer, and the water-soluble polymer adheres to the laminated water-disintegrable sheet 11 in an amount sufficient to impart heat sealability. What is necessary is just to be formed. In addition, by making the water-soluble polymer layer 15 into a film-like continuous layer, the tensile strength of the laminated water-disintegrable sheet can be improved.

The water-soluble polymer layer 15 may have a multilayer structure. For example, the water-soluble polymer layer 15 may be formed from a water-soluble multilayer film in which a polyvinyl alcohol-based film and a polyethylene oxide resin film are laminated. Among water-soluble polymers, polyvinyl alcohol has an average degree of polymerization of 2
Those having a molar ratio of from 00 to 2000 and a degree of saponification of from 80 to 95 mol% are preferred. Polyvinyl alcohol has a property of becoming insoluble in cold water when the degree of saponification is too high. on the other hand,
When the degree of saponification decreases, the hydrophobicity increases and the cloud point decreases to become insoluble in warm water. When the degree of saponification further decreases, the water becomes insoluble. Further, various modifying groups can be introduced into polyvinyl alcohol for modification, for example, modification of anion-modified polyvinyl alcohol introduced with a carboxylic acid group or the like, nonion-modified polyvinyl alcohol modified with olefin, cation-modified polyvinyl alcohol, or the like. Polyvinyl alcohol is used.

The polyethylene oxide resin is an addition polymer of ethylene oxide produced by a usual production method, and preferably has a weight average molecular weight of 10,000 or more. The water-soluble polymer used in the present invention may contain additives such as a plasticizer, a filler, a reinforcing material, and a coloring agent. For example, if flexibility is strongly desired in the water-disintegrable sheet depending on the application, it is appropriate to add glycerin, ethylene glycol or a polymer thereof, and the like.
When moisture resistance is required, a polyhydric alcohol such as pentaerythritol may be blended. In addition, pigments such as clay, talc, titanium oxide, calcium carbonate and the like, which are inorganic powders, pigments, surfactants, sleeve imparting agents, and the like can be blended.

The amount of the water-decomposable polymer adhered is (A) / (B) = 99.5 / 0.5 in weight ratio of (A) the water-decomposable sheet 13 and (B) the water-soluble polymer layer 15. 10/90 is preferred, more preferably 99/1 to 50/50, and even more preferably 90/10 to 60/40. The thickness of the laminated water-disintegrable sheet 11 of the present invention is not particularly limited, and can be freely changed depending on the purpose and application. Generally, about 80 to 300 μm is appropriate, and 90 to 200 μm is appropriate.
Is preferred. When a polymer film is laminated as the water-soluble polymer layer 15, the thickness is appropriately about 5 to 150 μm, preferably 10 to 60 μm. The polymer film may be subjected to surface treatment such as embossing, plasma treatment, and adhesion prevention treatment.

FIG. 2 is a partially omitted cross-sectional view showing an example of the configuration of the bath agent individual package of the present invention when the laminated type water-disintegrable sheet 11 is used. The laminated water-disintegrable sheet 11 is folded so that the water-soluble polymer layer 15 is on the inside, and the side end 11b is heat-sealed to form a tubular body. One end of this tubular body is heat-sealed to form a bag. The bath additive individual body 21 is formed. After the granular bath agent is stored and filled, the opening of the bag is heat-sealed and sealed. Since the water-soluble polymer layer 15 is located on the inner side and is not directly exposed to the atmosphere, even if a material such as polyvinyl alcohol that is hardened by long-term storage and has a low solubility in cold water is used, Reduction is prevented. In addition, since mechanical properties such as elongation are regulated by the water-disintegratable sheet 13 on the outside, even if a material having high elongation such as polyvinyl alcohol is used, packaging workability does not deteriorate.

Further, in the above configuration example, a case is shown in which one water-disintegrable sheet or a laminated water-disintegrable sheet is folded to form a bag-shaped package.
The sides may be heat-sealed to form a bag-like package, or the water-disintegrable sheet of the present invention may be overlapped with another sheet or the like. Also, the shape of the package is not limited to a bag shape,
Any type such as a box type may be used.

The bathing agent used in the present invention is not particularly limited as long as it has a bathing effect. Examples of the water-soluble bathing agent include anhydrous sodium sulfate, sodium hydrogencarbonate, and the like.
Inorganic salts such as sodium chloride, and water-insoluble ones include herbs, herbs, trees, and the like. Further, there are foaming and cloudy type bath agents and the like. An effervescent bathing agent refers to a composition which has effervescent properties when added to water by mixing inorganic salts and organic acids into a well-known bathing agent composition.
That is, as a bathing agent component to be filled, sodium chloride is used. Inorganic salts such as sodium hydrogen carbonate, sodium carbonate, sodium sulfate, sodium sesquicarbonate, sodium sulfide, and citric acid, succinic acid, malic acid, maleic acid,
Organic acids such as tartaric acid, plant components, vitamins, enzymes, and various surfactants may be added.
Further, a cloudy-type bath agent containing an inorganic pigment is known as a bath agent for enjoying the atmosphere of a hot spring in a home bathtub. Such inorganic pigments are not particularly limited, and include white pigments and colored pigments, such as titanium oxide, zinc oxide, calcium carbonate, magnesium oxide, talc, iron oxide, and the like, with titanium oxide being particularly preferred.

[0026]

According to the present invention, by using a specific water-disintegrable sheet and using the amount of one bathing as a guide, the unit amount of the bathing agent is individually packed to easily determine the exact amount of the bath. Can be thrown in. As a result, not only can the bath agent be used without waste, but also coughing by fine powder,
It is possible to realize a bath additive product that does not cause stains on hands. Furthermore, since the package body of the present invention dissolves the package immediately in the bathtub, the product of the present invention can be put into the bathtub as it is, and the packaging material such as aluminum is broken as in the prior art. This eliminates the need to remove the bath salt.

Hereinafter, the present invention will be described more specifically with reference to examples. Prior to this, the evaluation method used in the examples will be described. (1) Method of evaluating solubility of water-disintegrable sheet Various sheet-like bodies shown in Table 1 below were cut into 2 × 2 cm, put into a water tank containing 1 L of a solution at each water temperature, and allowed to stand still for 1 minute. The mixture was dissolved and dispersed by light stirring, and the residue was observed with the naked eye, and evaluated according to the following criteria.

(2) Solubility evaluation method of the bathing agent package The solubility of the bathing agent package using the bathing agent of the general composition shown in Table 2 packaged with various sheets shown in Table 1 below was measured. After standing for 1 minute in a bath at 0 ° C., the mixture was dissolved and dispersed by gentle stirring, and the dissolution residue of the individual bathing agent was visually observed and evaluated according to the following criteria.

Example 1 60 parts by weight of fibrous CMC-H (degree of etherification DS = 0.65, manufactured by Nichirin Chemical Co.) and zeolite (type A, Na
_{2 O · 2SiO 2 · Al 2} O 3 · 4.5H 2 O, an average particle diameter of 5 [mu], manufactured by Mizusawa Industrial Chemicals) was mixed paper stock consisting of 40 parts by weight of the dispersed slurry solution in water, a square sheet machine (Kumagaya Handmade sheet (basis weight about 70) by Riki Kogyo
g / m ² ). Peeling from the papermaking wire was easy and the papermaking properties were good.

The obtained sheet was dried into a sheet by a roll drier at 120 ° C., impregnated with a 50% methyl alcohol solution containing 3% by weight of sodium hydroxide, and then dried at 110 ° C. The sample No. in Table 1 was used. 1 water-disintegrable sheet was prepared. Hereinafter, the inorganic powders used were changed as shown in Table 1, and the sample Nos. 3 to 6 water-disintegrable sheets were obtained.

The sample No. Sample No. 1 was prepared by laminating a polyvinyl alcohol film (thickness: 14 μm) on the water-disintegrable sheet of Sample No. 1. 2 was obtained. These were evaluated for solubility and are shown in Table 1. In addition,
Commercially available water-soluble sheet [Disorvo, Mishima Paper (CMC /
Pulp)] was also evaluated for performance.

The details of the inorganic powders shown in the table are as follows. Talc: MgO · SiO _2, Japan Mistron made of bentonite: Bentonite Tone, Kanto bentonite mining activity clay: Galeon earth, Mizusawa Chemical Co., kaolin: HI-VHITE, Il Sung common service made

[0033]

[Table 1]

Example 2 8 cm in length prepared using various sheets shown in Table 1.
After filling 20 g each of the bath preparation prepared using the general bath preparation composition shown in Table 2 into a 10 cm wide bag, polyvinyl alcohol (Hicelon S-400, manufactured by Nippon Synthetic Chemical Co., Ltd.) Was heat-sealed at the opening of the bag to obtain the bathing agent individual body of the present invention, and the solubility in bath water was evaluated. The sample No. No. 2 is a sheet No. 2 in which a polyvinyl alcohol film is laminated. 2 and heat-sealed as it was to obtain a bathing agent package of the present invention.

[0035]

[Table 2]

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a configuration example of a laminated water-disintegrable sheet of the present invention.

FIG. 2 is a partially omitted cross-sectional view showing a configuration example of an individual bath additive body of the present invention.

[Description of Signs] 11 Laminated water-disintegrable sheet 13 Water-disintegrable sheet 15 Water-soluble polymer layer 21 Individual bath agent 23 Granular bath agent

Claims (1)

[Claims] 1. An individual bath preparation body characterized in that the bath agent is unit-packaged with a water-decomposable sheet containing carboxymethylcellulose or carboxyethylcellulose as a base material and water-insoluble or hardly water-soluble inorganic powder internally added.