JP5099736B2 - Film soap - Google Patents

Description

  The present invention is a sheet-like or film-like soap (soap) which contains a lot of soap (soap) base or a soap (soap) component and is excellent in water solubility, drying resistance and blocking resistance without causing lumps. )

  Conventionally, a sheet-shaped soap called a paper soap (soap) has been manufactured and sold. The early ones were thin slices of solid soap that pursued a so-called “play” sensation as well as a feature that was excellent in portability. However, since it was a slice of solid soap, it was easily broken in terms of physical properties, and there was a limit to reducing the thickness of the sheet, and it did not become a boom. Recently, a film-shaped soap has been launched and a new field has been established. This is a water-soluble film based on hydroxypropylmethylcellulose or the like containing a soap component, has a thickness of several tens of microns, is more elastic, and has a characteristic of being difficult to break.

  On the other hand, in recent years, water-soluble films have been used as packaging materials or carriers for foods, vitamins, pharmaceuticals, etc., and as cosmetics. For example, it is used as a flavor film or the like holding a fragrance or the like for the purpose of mood change, prevention of bad breath and the like. In addition, a cosmetic film in which a moisturizing agent or the like is held is used as a pack, or dissolved in water and used as an emulsion. Furthermore, it has been studied to use an anti-inflammatory agent or the like as a poultice.

  In general, a water-soluble film is produced by dissolving a film-forming agent, a gelling agent, a plasticizer, etc. in water, spreading it into a film, drying it, cutting it into an appropriate size, and putting it into a container. A water-soluble film dissolves in water without causing so-called “dama”; does not easily cause cracking due to drying, that is, has excellent drying resistance; absorbs moisture in the air or melts by heat Thus, it is required that the blocking phenomenon that the films adhere to each other is difficult to occur, that is, the blocking resistance is excellent.

  Moreover, the film-form cosmetics which have a natural starch as a main component are disclosed (patent document 1). However, since this film easily absorbs moisture, it tends to cause blocking. In addition, a film excellent in drying resistance using pullulan and carrageenan is disclosed (Patent Document 2). However, this film has low moisture resistance, and blocking occurs under high humidity. Furthermore, a film containing sodium alginate and maltodextrin is disclosed (Patent Document 3). However, this film has low molecular weight maltodextrin added to improve the solubility in water. However, if the concentration is increased, moisture resistance decreases and blocking tends to occur. Is insufficient.

  Moreover, about the film-shaped or sheet-shaped soap, the film containing the soap base is disclosed (patent document 4). However, this film has reduced blocking resistance due to a large amount of plasticizer. As described above, the film-type soap that has been recently marketed is a water-soluble film based on hydroxypropylmethylcellulose or the like containing a soap component. When the molecule is used alone as a film substrate, the resulting film is elastic and strong, but there are problems with its solubility and it is not satisfactory for its use.

  On the other hand, as a water-soluble film, processing of starch modified with chemical modification such as crosslinking, acetylation or organic esterification, hydroxyethylation or hydroxypropylation, starch modified by oxidation, enzyme conversion, acid hydrolysis, etc. A film mainly composed of starch is disclosed (Patent Document 5). However, this film uses substantially any one of the modified starches, has insufficient blocking resistance, and is not satisfactory as a film-forming material for sheet-like or film-like soap.

Unexamined-Japanese-Patent No. 2002-212027. Japanese Patent Laid-Open No. 5-236885. US Pat. No. 6,656,493. JP-A-2-279800. JP2003-213038A.

  An object of the present invention is to provide a film-like soap (soap) that contains a large amount of soap (soap) base or soap components and is excellent in all of water solubility, drying resistance, and blocking resistance without causing lumps. There is to do.

  The present inventor has intensively studied to solve the above-mentioned problems. Hydroxypropylmethylcellulose (hereinafter abbreviated as HPMC), methylcellulose (hereinafter abbreviated as MC), hydroxypropylcellulose (hereinafter abbreviated as HPC), and hydroxyethylcellulose. (Hereinafter abbreviated as HEC) and at least one (a) selected from the group consisting of hydroxyethylmethylcellulose (hereinafter abbreviated as HEMC), etherified high amylose starch, esterified high amylose starch, and crosslinked starch At least one selected from the group (b) is mixed to form a film-forming material (A), which is then mixed with a plasticizer (B) and a soap base (C) to form a sheet or film. By containing a lot of soap (soap) base or soap component, In addition, the present inventors have found that a sheet-like or film-like soap (soap) that is excellent in all of water solubility, drying resistance, and blocking resistance that does not cause lumps can be produced, and the present invention has been completed. .

  In the present invention, as the component (a) in the film-forming material (A), HPMC and / or MC can be mentioned as particularly preferable components, and the component (a) is one or two of the components (a). The viscosity of a 2% by weight (in terms of dry matter) aqueous solution of the above mixture is preferably 2 to 30000 mPa · s when measured with a B-type rotational viscometer at 20 ° C., more preferably the component (a) The viscosity of a 2% by weight (in terms of dry matter) aqueous solution of one or a mixture of two or more is preferably 5 to 10,000 mPa · s when measured with a B-type rotational viscometer at 20 ° C. Hereinafter, “weight%” and “parts by weight” of the component (a) and the component (b) in the film-forming material (A) in the present invention, or other blending components, and the like are expressed as “dry matter conversion”. .

  In the present invention, as the component (b) in the film forming material (A), the etherified high amylose starch of the component (b) is hydroxypropylated high amylose corn starch, and the esterified high amylose starch of the component (b) is The case where the acetylated high amylose corn starch or the crosslinked starch of the component (b) is a phosphate crosslinked tapioca starch can be mentioned as a particularly preferred component. Moreover, the crosslinked starch of the component (b) in the film forming material (A) is a crosslinked starch using natural starch or modified starch as a raw material starch, and the crosslinked starch of the component (b) in the film forming material (A) is It can be mentioned as a preferable constitution of the present invention that the degree of heat swelling of the crosslinked starch is 15 or less.

  In this invention, it can mention as a preferable structure of this invention that the mixture ratio of a plasticizer (B) contains 1-25 weight part with respect to 100 weight part of films, Furthermore, a soap base (C) The preferable content of the present invention is that the content of is 30 to 80% by weight in terms of dry matter with respect to the film weight. In the present invention, the thickness of the sheet-like or film-like soap of the present invention is preferably 20 μm to 200 μm.

  In the present invention, in order to produce a sheet-like or film-like soap excellent in water solubility, drying resistance and blocking resistance, the component (a) and the component (b) in the film-forming material (A) of the present invention. And the step of preparing a film-forming stock solution by mixing and dissolving the plasticizer (B) and soap base (C) in this, and adjusting the solid content concentration of the film-forming stock solution Then, it can manufacture by the process of shape | molding in the shape of a film, and drying the film, and then aging and stabilizing the moisture content of the film.

Specifically, the present invention is [1] at least one component selected from the group consisting of hydroxypropylmethylcellulose, methylcellulose, hydroxypropylcellulose, hydroxyethylcellulose, and hydroxyethylmethylcellulose . A component (a) having a viscosity of 2 to 30000 mPa · s when measured with a B-type rotational viscometer at 20 ° C., in the form of a 2% by weight (dry matter equivalent) aqueous solution of one or two or more mixtures , and etherified high A film-forming material (A) mixed with at least one component (b) selected from the group consisting of amylose starch, esterified high amylose starch, and crosslinked starch having a heat swelling degree of 15 or less and 1 or more, and a plasticizer (B) and soap base (C) as constituent components, In the film forming material (A), the mixing ratio of the component (a) and the component (b) is 50 to 98% by weight (dry matter) of the component (a) with respect to the total of the component (a) and the component (b). Conversion), the component (b) is 50 to 2% by weight (in terms of dry matter), and the blending ratio of the plasticizer (B) is 1 to 25 parts by weight (in terms of dry matter) with respect to 100 parts by weight of the film (in terms of dry matter). The content of soap base (C) is mixed and dissolved so that it is 30 to 80% by weight in terms of dry matter relative to the film weight (in terms of dry matter), and formed into a sheet or film. The sheet-like or film-like soap excellent in water solubility, drying resistance and blocking resistance, and (2) the component (a) in the film-forming material (A) is hydroxypropyl methylcellulose and / or methylcellulose. The above described [1] And Jo or film-like soap, (3) a film-forming material in (A) is component (a) is 2 wt% viscosity (dry matter basis) aqueous solution alone or a mixture of two or more of component (a), 20 ° C. When measured with a B-type rotational viscometer, the sheet or film soap according to the above [1] or [2] , which is 5 to 10,000 mPa · s.

[ 4 ] In the above [1] or [2], the etherified high amylose starch of component (b) in [ 4 ] film forming material (A) is hydroxypropylated high amylose corn starch. The sheet-like or film-like soap described in [ 5 ], and the esterified high amylose starch as the component (b) in the film-forming material (A) is acetylated high amylose corn starch. The sheet-shaped or film-shaped soap according to [2], or the crosslinked starch of component (b) in [ 6 ] film-forming material (A) is a crosslinked starch using natural starch or modified starch as a raw material starch sheet or or film-like soaps according to [1] or [2] to, [7] Fi The mixing ratio of the component (a) and the component (b) in the rubber forming material (A) is 60 to 95% by weight (dry matter) with respect to the sum of the component (a) and the component (b). (B) Component (b) is 40 to 5% by weight (in terms of dry matter), and consists of a sheet-like or film-like soap as described in [1] or [2] above.

Furthermore, the present invention provides the sheet-like or film-like soap according to any one of the above [1] to [ 7 ], wherein the [ 8 ] film has a thickness of 20 to 200 [mu] m, or [ 9 ] hydroxypropyl It is at least one component selected from the group consisting of methylcellulose, methylcellulose, hydroxypropylcellulose, hydroxyethylcellulose, and hydroxyethylmethylcellulose, and the component is 2% by weight (in terms of dry matter) of the component alone or a mixture of two or more types ) When the viscosity of the aqueous solution is 20 ° C. and measured with a B-type rotational viscometer, the component (a) is 2 to 30000 mPa · s , etherified high amylose starch, esterified high amylose starch, and the degree of heat swelling at least 15 selected from the group consisting of a is crosslinked starch 1 or less The seed (b) is mixed in the mixing ratio described in [1] above, dispersed and dissolved in water, and the plasticizer (B) and soap base (C) are mixed in the mixing ratio described in [1] above. The step of preparing the stock solution for film formation by mixing and dissolving, the step of adjusting the solid content concentration of the stock solution for film formation, the step of forming into a film, and the drying of the film, followed by aging It consists of the manufacturing method of the sheet-like or film-like soap excellent in water solubility, drying resistance, and blocking resistance characterized by comprising the process of stabilizing a water content.

According to the present invention, a sheet-like or film-like soap (soap) containing a lot of soap (soap) base or soap components and excellent in all of water solubility, drying resistance and blocking resistance without causing lumps. Can be provided.
That is, the following remarkable effects can be obtained by the present invention:
(1) The sheet-like or film-like soap of the present invention has water solubility that does not cause so-called “dama”. In the present invention, based on the mixing ratio of the component (a) and the component (b) in the film forming material (A), the water dissolution rate can be variously adjusted according to the purpose of use of the film. In the end, it can be dissolved in water without causing “dama”, and the soap function can be exhibited quickly.

  (2) The sheet-like or film-like soap of the present invention is unlikely to crack due to drying. Therefore, it is excellent in drying resistance. (3) The sheet-shaped or film-shaped soap of the present invention hardly absorbs moisture in the air or melts by heat to cause a blocking phenomenon in which films adhere to each other. That is, it is excellent in moisture resistance and heat resistance, and it is difficult to cause a blocking phenomenon even under high humidity and high temperature in summer. Therefore, it is remarkably excellent in blocking resistance. (4) The sheet-shaped or film-shaped soap of the present invention is easy to cope with the external environment by being excellent in drying resistance and blocking resistance. Therefore, for example, a high degree of hermeticity is not required as a container for storing a film or carrying it.

  (5) Since the sheet-shaped or film-shaped soap of the present invention can be used as easily as necessary, it can be used without waste. Moreover, since the sheet-like or film-like soap of the present invention can be individually packaged, it is excellent in hygiene. (6) The sheet-shaped or film-shaped soap of the present invention can be easily carried in a compact plastic container or the like. (7) The sheet-like or film-like soap of the present invention can be embossed to give a pattern or a multilayer film, and can contain different components.

  The sheet-like or film-like soap (soap) of the present invention includes at least one (a) selected from the group consisting of HPMC, MC, HPC, HEC, and HEMC, etherified high amylose starch, esterified high amylose starch, And a film forming material (A) mixed with at least one (b) selected from the group consisting of cross-linked starch, a plasticizer (B), and a soap base (C) as constituent components, It consists of a sheet-like or film-like soap (soap) excellent in water solubility, drying resistance and blocking resistance.

[Film-forming material (A)]
The film forming material (A) in the present invention comprises at least one (a) selected from the group consisting of HPMC, MC, HPC, HEC, HEMC, etherified high amylose starch, esterified high amylose starch, and crosslinked starch. It consists of the film forming material which mixed at least 1 type (b) selected from the group which consists of. Here, HPMC, MC, HPC, HEC, HEMC in the present invention is a polymer prepared by ether-bonding a hydroxyl group of cellulose to a hydroxypropyl group, a hydroxyethyl group, or a methyl group, and has a molecular weight of about 1. It is about 10,000 to 2,000,000. In addition, the viscosity of a 2% by weight aqueous solution of the component (a) alone or a mixture of two or more types is preferably 5 to 10,000 mPa · s when measured at 20 ° C. with a B-type rotational viscometer. If it is 5 mPa · s or less, film formation is poor, and if it is 10,000 mPa · s or more, solubility in water tends to be poor.

  The etherified high amylose starch and / or esterified high amylose starch and / or cross-linked starch which are the component (b) constituting the film forming material (A) are insufficient in water solubility and anti-blocking property only with the component (a). This improves the feeling of use of the film soap of the present invention. Moreover, in this invention, high amylose starch means the starch containing 30 weight% or more amylose, Preferably the starch containing 40 to 80 weight% amylose is meant. Examples of the high amylose starch include high amylose corn starch, mung bean starch, and yellow pea starch.

  In the present invention, the etherified high amylose starch or the esterified high amylose starch, which is the component (b) constituting the film forming material (A), has a linear structure similar to that of cellulose, but is excellent in film formability even when used alone. The high amylose starch, which has a fast aging, is etherified or esterified to suppress the aging and form a stable paste liquid while maintaining the film-forming property. As the etherified high amylose starch, for example, hydroxypropylated high amylose corn starch is preferable. Further, as the esterified high amylose starch, for example, acetylated high amylose corn starch is preferable.

  Hydroxypropylated high amylose corn starch can be produced, for example, by reacting high amylose starch with propylene oxide. The acetylated high amylose corn starch can be produced, for example, by reacting high amylose corn starch with acetic anhydride under dilute alkaline conditions. The DS (Degree of Substitution) of hydroxypropylated high amylose starch and acetylated high amylose starch is usually preferably about 0.02 to 0.4. The degree of substitution represents the molar equivalent of the substituted hydroxyl group per glucose unit (per mole) in starch or its degradation product. The hydroxypropyl substitution degree can be measured according to the method of Johnson (Analytical Chemistry Vol. 41, No. 6, 859-860, 1969). The degree of acetyl substitution can be measured according to the Smith method (Starch: Chemistry and Technology Vol. 2, 610-612, 1967, Academic Press).

  In the present invention, the viscosity (50 ° C., B-type viscometer 10 rpm) of a 20 wt% aqueous solution of hydroxypropylated high amylose starch and acetylated high amylose starch as component (b) is 30,000 to 400,000 mPa · s. It is preferable to be within a range. When the viscosity is lower than this range, the drying resistance tends to be lowered. On the other hand, when the viscosity is higher than this range, the viscosity at the time of film preparation becomes too high and the workability tends to be lowered. The viscosity of the component (b) is more preferably in the range of about 50,000 to 300,000 mPa · s.

  In the present invention, as the crosslinked starch as component (b), for example, phosphate crosslinked starch, adipic acid crosslinked starch, epichlorohydrin-treated crosslinked starch and the like are preferable. As the raw material starch, for example, tapioca starch, potato starch, corn starch, wheat starch, waxy corn starch, waxy potato starch and other natural starches; preferable. The cross-linked starch can be prepared by reacting a polyfunctional compound between two or more hydroxyl groups of a raw starch molecule to cross-link it. Examples of the polyfunctional compound include phosphorus compounds such as phosphorus oxychloride and trimetaphosphoric acid; polyfunctional compounds such as acrolein, epichlorohydrin, and adipic acid. When preparing a cross-linked modified starch, the cross-linking treatment and the processing treatment may be performed simultaneously, the post-crosslinking processing may be performed, or the post-processing cross-linking treatment may be performed.

  In the present invention, the degree of crosslinking of the crosslinked starch as component (b) is measured by the degree of heat swelling. The degree of heat swelling is measured under the following conditions. That is, 1.0 g of a sample is dispersed in 100 ml of water in terms of dry matter, heated at 90 ° C. for 30 minutes, and then cooled to 30 ° C. Then, it is centrifuged (1,680 G for 10 minutes) to separate into a gel layer and a supernatant layer. Subsequently, the weight of a gel layer is measured and this is set to C. Next, the weight-measured gel layer was dried (105 ° C., constant weight), the weight was measured, and this was designated as D, and the degree of heat swelling was represented by C / D. The higher the degree of crosslinking, the lower the degree of heat swelling. The degree of heat swelling is preferably about 15 or less, more preferably about 13 or less, and more preferably 1 or more. On the other hand, when it exceeds 15, when the obtained film is dissolved with water, there is a tendency that lumps are easily formed.

  The mixing ratio of the component (a) and the component (b) in the film-forming material (A) is usually about 50 to 98% by weight of the component (a) and 50% of the component (b) based on the total of both. It is preferably about ˜2% by weight. If the component (a) is less than this range, the film formation tends to be inferior. On the other hand, if the component (a) is more than this range, the anti-blocking property tends to be poor, and the water solubility tends to be reduced, which tends to cause lumps. Therefore, it is not preferable. The mixing ratio of the component (a) and the component (b) is more preferably about 60 to 95% by weight for the component (a) and about 40 to 5% by weight for the component (b). Is most preferably about 65 to 90% by weight and component (b) is about 35 to 10% by weight.

[Plasticizer (B)]
The plasticizer (B) that is a constituent of the sheet-like or film-like soap of the present invention has a function of softening the film. For example, one or more of glycerin, sugar alcohol, monosaccharide, oligosaccharide and the like are used. Can be used. The blending ratio of the plasticizer (B) is usually preferably 1 to 25 parts by weight with respect to 100 parts by weight of the film. If the plasticizer is less than this range, the drying resistance tends to decrease, while if it exceeds this range, the blocking resistance tends to decrease, such being undesirable. The blending ratio of the plasticizer is more preferably about 2 to 25 parts by weight.

[Soken substrate]
The soap base in the film of the present invention is a vegetable or animal fat such as coconut oil, beef tallow saponified with sodium hydroxide, potassium hydroxide, ethanolamine or the like. In some cases, EDTA, glycerin or alkyl It may contain raw materials generally used for face-washing soaps such as betaine and body soaps. The soap base to be used is generally water-containing, but moisture is basically not a problem. The content of soap base in the film is preferably 30 to 80% by weight in terms of dry matter. In the case of 30% by weight or less, the physical properties of the film are not particularly impaired, but there is a tendency that the cleaning ability and the water solubility due to the soap component are slightly lowered. On the other hand, if it is 80% by weight or more, the film tends to be weak.

[Optional ingredients]
The component of the sheet-like or film-like soap of the present invention is a gelling agent, for example, in addition to the film forming material (A) and the plasticizer (B), which are essential components, depending on the use of the film. , Polyvinyl alcohol, casein, carrageenan, gelatin, gellan gum, pullulan, agar, alginate and the like can be added and used. Examples of the alginate include an alkali metal alginate such as sodium alginate; an alkaline earth metal alginate such as calcium alginate. In addition, various plant extracts, various animal extracts, herbal ingredients, vitamins, minerals, deep water, deep water ingredients, moisturizers, antibacterial agents, anti-inflammatory agents, antiallergic agents, ultraviolet absorbers, fragrances, dyes, pigments, Arbitrary components such as emulsifiers, fragrances, deodorants, colorants, fats and oils can be appropriately blended. Further, by adding a protein hydrolyzate, polyglutamic acid, hyaluronic acid, or a salt thereof, the bubble property when using a film-like soap is improved.

[Preparation of sheet or film soap]
The sheet-shaped or film-shaped soap of the present invention contains other optional components, if necessary, in the film forming material (A), the plasticizer (B) and the soap base (C). It can be prepared by forming into a film shape. The sheet-like or film-like soap can be easily prepared by, for example, the steps of (1) preparation of stock solution, (2) coating, (3) drying, (4) aging, and (5) cutting. Hereinafter, these steps will be described.

(1) Preparation of stock solution: If necessary, the components (a) and (b) of the film-forming material (A) are heated to about 1.5 to 5 times the amount of water, and dispersed and dissolved. Add plasticizer (B) and dissolve and mix. Furthermore, the soap base (C) is added and dissolved, and if necessary, the above optional components are dissolved or dispersed to obtain a stock solution. At this time, if necessary, heat treatment is also performed.
(2) Coating: After adjusting the solid content concentration so that the viscosity is about 2,000 to 5,000 mPa · s while maintaining the temperature of the stock solution at 50 to 65 ° C. (usually 20 to 30% by weight) About), use an applicator to adjust the film thickness on the synthetic resin sheet. As the synthetic resin sheet, for example, a polyester resin sheet or the like can be used.
(3) Drying: Dry with hot air of about 80 to 110 ° C. to obtain a dry film. The thickness of the dried film is usually about 20 μm to 200 μm in view of drying resistance, touch feeling, water solubility and the like. In addition, the water content of the film is usually about 5 to 20% by weight from the viewpoints of touch and storage.
(4) Aging: The obtained film is allowed to stand in a humidity-controlled room at a temperature of 25 ° C. and a relative humidity of 45% for 24 hours to stabilize the moisture content and the like of the film.
(5) Cut: The aged film is peeled off from the synthetic resin sheet, cut appropriately, and commercialized.

  EXAMPLES Hereinafter, although an Example demonstrates this invention more concretely, the technical scope of this invention is not limited to these illustrations.

[Test method and evaluation]
Hereinafter, the present invention will be described more specifically by way of examples. The film in each example prepared the film of length 3.3cm, width 2.3cm, and thickness 45-60 micrometers according to the said preparation method. Moreover, each performance test of the film formation property of the obtained film, water solubility, drying resistance, and blocking resistance was done with the following method.

  (Film forming property): Unevenness such as irregularities on the surface of the film before cutting formed in the coating process, and uniformity of the surface state and thickness of the film after cutting were observed and evaluated according to the following criteria. Criteria-○: There is no unevenness on the film surface before cutting, and the surface after cutting is smooth and uniform in thickness. Δ: There is unevenness on part of the film surface before cutting, and part of the surface after cutting. Unevenness is seen and the thickness is slightly non-uniform, x: unevenness is found on the entire surface of the film before cutting, unevenness is seen on the entire surface after cutting, and the thickness is also non-uniform.

  (Water solubility): Evaluated according to the following criteria. Criteria-○: Take a film on the palm, add water to it and dissolve without foaming when foamed with the palm. Δ: Take a film on the palm, add water to it and foam with the palm. First, it produces lumps, but eventually dissolves. X: When a film is taken on a palm, water is added to the palm and foamed with the palm, lumps are produced, and the film does not completely dissolve.

  (Drying resistance): It was stored for 1 week in a desiccator adjusted to “relative humidity (RH) 20%, 25 ° C.”, and “cracking” was evaluated according to the following criteria. Criteria-O: Even if the film is bent, it does not break even if it is twisted. Δ: It does not break even if the film is bent, but it cracks when twisted. X: It breaks only by applying a load to the film.

  (Blocking resistance): 24 hours in a desiccator adjusted to “RH 45%, temperature 50 ° C.” (high temperature condition), or 1 in a desiccator adjusted to “RH 81%, 25 ° C.” (high humidity condition). Stored weekly and evaluated according to the following criteria: Criteria-o: no blocking, no change in state, Δ: slightly blocking, but can be peeled off one by one, x: blocking occurs, and cannot be peeled off one by one.

[Example 1]
HPMC (2 wt% aqueous solution viscosity (20 ° C., B-type rotational viscometer 30 rpm) 20 mPa · s; moisture 3%) and hydroxypropylated high amylose corn starch (DS 0.12, amylose content 65 wt%, 20 wt%) Viscosity of aqueous solution (50 ° C., B-type viscometer 10 rpm) 248,000 mPa · s; water 10%), glycerin and soap base (mixed saponified product of coconut oil K and saponified product of coconut oil 2: 1): moisture 10%) were used in the composition shown in Table 1 below to prepare eight types of film soap having a final moisture content of 11 to 13% by weight and a thickness of 50 μm, and were subjected to a performance test. The composition and performance test results are shown in Table 1. The numerical value in a table | surface shows a weight part.

As shown in Table 1, no. The test results of the present invention films of 2 to 7 were generally good. Furthermore, no. The test results of the present invention films of 3 to 6 were good. No. When HPMC is used alone as in No. 8, blocking tends to occur, and lumps tend to occur and tend not to dissolve.

[Example 2]
MC (viscosity of 2 wt% aqueous solution (20 ° C., B-type rotational viscometer 30 rpm) 40 mPa · s; moisture 3%) and acetylated high amylose corn starch (DS 0.12, amylose content 65 wt%, 20 wt% aqueous solution) Viscosity (50 ° C., B-type viscometer 10 rpm) 248,000 mPa · s; moisture 10%), glycerin and soap base (mixed saponified product of coconut oil K and saponified coconut oil 2 to 1; moisture: 10%) was used in the composition shown in Table 2 below to prepare eight types of film soap having a final moisture content of 11 to 13% by weight and a thickness of 50 μm, and were subjected to a performance test. The composition and performance test results are shown in Table 2. The numerical value in a table | surface shows a weight part.

As shown in Table 2, no. The test results of the present invention films of 2 to 7 were generally good. Furthermore, no. The test results of the present invention films of 3 to 6 were good. No. When MC is used singly as in No. 8, blocking tends to occur, and lumps tend to occur and tend not to melt.

[Example 3]
HPMC (viscosity of 2% by weight aqueous solution (20 ° C., B-type rotary viscometer 30 rpm) 20 mPa · s; moisture 3%), phosphate-crosslinked tapioca starch (heat swelling degree 8.0; moisture 10%), glycerin and soap substrate (A mixture of saponified product of coconut oil K and saponified product of coconut oil 2: 1; moisture: 10%) was used in the composition shown in Table 3 below, with a final moisture content of 11 to 13% by weight and a thickness of 50 μm. 8 types of film soaps were prepared and subjected to performance tests. The composition and performance test results are shown in Table 3. The numerical value in a table | surface shows a weight part.

As shown in Table 3, no. The test results of the present invention films of 2 to 7 were generally good. Furthermore, no. The test results of the present invention films of 3 to 6 were good. No. When HPMC is used alone as in No. 8, blocking tends to occur, and lumps tend to occur and tend not to dissolve.

[Example 4]
45 parts HPMC (2 wt% aqueous solution viscosity (20 ° C., B-type rotational viscometer 30 rpm) 20 mPa · s), 25 parts phosphoric acid cross-linked tapioca starch 25 parts glycerin with heat swelling degree shown in Table 4 below and soap base (A mixture of saponified coconut oil K and saponified coconut oil 2 to 1; moisture: 10%) Using 100 parts, five types of films having a final moisture content of 11 to 13% by weight and a thickness of 50 μm A soap was prepared and subjected to a performance test. The performance test results are shown in Table 4. The numerical value in a table | surface shows a weight part.

As shown in Table 4, no. The test results of the inventive films of 3 to 5 were good. No. 1, no. When the degree of heat swelling is increased as in 2, the solubility of the film is lowered and the blocking resistance tends to be lowered.

[Example 5]
HPMC (2 wt% aqueous solution viscosity (20 ° C., B-type rotational viscometer 30 pm) 20 mPa · s) and hydroxypropylated high amylose corn starch (DS 0.12, amylose content 65 wt%, 20 wt% aqueous solution) Viscosity (50 ° C., B-type viscometer 10 rpm) 258,000 mPa · s), glycerin amount and soap base (coconut oil K saponified product and coconut oil Na saponified product 2: 1 mixed) 6 types of soap having a final water content of 11 to 13% by weight and a thickness of 50 μm were prepared using 100 parts of water (water: 10%) and subjected to a performance test. The composition and performance test results are shown in Table 5. The numerical value in a table | surface shows a weight part.

As shown in Table 5, no. The test results of 2 to 5 of the present invention films were good. No. When there is little glycerol like 1 and it is weak with respect to drying, it will be easy to break, and when there is too much glycerol, it will become easy to raise | generate blocking on high temperature, high humidity conditions.

[Example 6]
MC of the composition shown in Table 6 below (viscosity of 2 wt% aqueous solution (20 ° C., B-type viscometer 30 rpm) 400 mPa · s) and hydroxypropylated high amylose corn starch (DS 0.12 of composition shown in Table 6 below) , Amylose content 65 wt%, 20 wt% aqueous solution viscosity (50 ° C., B-type viscometer 10 rpm) 248,000 mPa · s), glycerin 5 parts, soap base (coconut oil K saponified product and palm oil Na fight water) 6 types of soaps having a final water content of 11 to 13% by weight and a thickness of 50 μm were prepared using the mixture of the products 2 to 1; It used for the performance test. The composition and performance test results are shown in Table 6. The numerical value in a table | surface shows a weight part.

As shown in Table 6, when the soap base is increased, the film formability is lowered and the film is easily cracked. When used as soap, reducing the amount of soap base will reduce foaming and cleaning ability. No. 2 to 5 films feel good as soap.

[Example 7]
16 parts of MC (2 wt% aqueous solution viscosity (20 ° C., B-type viscometer 30 rpm) 40 mPa · s) and hydroxypropylated high amylose corn starch (DS 0.12, amylose content 65 wt%, 20 wt% aqueous solution viscosity) (50 ° C., B-type viscometer 10 rpm) 248,000 mPa · s) 9 parts glycerin and soap base (coconut oil K saponified product and saponified coconut oil 2: 1); moisture: 10%) 100 parts of γ-polyglutamate Na (Mitani Enterprises Co., Ltd .: molecular weight about 2 million) and collagen hydrolyzate (Nitta Gelatin) were used in the composition shown in Table 7 below. Four types of film soaps having a final moisture content of 11 to 13% by weight and a thickness of 50 μm were prepared and subjected to a performance test. Table 7 shows the composition and performance test results. The numerical value in a table | surface shows a weight part.

As shown in Table 7, when γ-polyglutamate Na or collagen hydrolyzate is added, it is possible to compensate for foaminess or moisture after using soap.

[Example 8]
45 parts of MC having the viscosity (20 ° C., B-type viscometer) of 2% by weight aqueous solution described in Table 8 below and hydroxypropylated high amylose corn starch (DS 0.12, amylose content 65% by weight, 20% by weight aqueous solution) Viscosity (50 ° C., B-type viscometer 10 rpm) 258,000 mPa · s) 20 parts glycerin 20 parts and soap base (mixed coconut saponified with coconut oil K and saponified coconut oil 2 to 1) Then, seven types of film soaps having a final moisture content of 11 to 13% by weight and a thickness of 50 μm were prepared and subjected to performance tests. The performance test results are shown in Table 8. The numerical value in a table | surface shows a weight part.

As shown in Table 8, when the viscosity is too low, the film formability is lowered and the film is easily cracked. Moreover, when a viscosity is too high, workability | operativity will worsen and water solubility will be inferior.

[Example 9]
HPMC (2 wt% aqueous solution viscosity (20 ° C., B-type rotational viscometer 30 pm) 20 mPa · s) and hydroxypropylated high amylose corn starch (DS 0.12, amylose content 65 wt%, 20 wt% aqueous solution) Viscosity (50 ° C., B-type viscometer 10 rpm) 248,000 mPa · s), 25 parts of glycerin and soap base (mixed coconut saponified with coconut oil K and saponified coconut oil 2 to 1; moisture: 10 %) A face-wash soap of Table 9 was made using 100 parts. The final moisture content was 11. The numerical value in a table | surface shows a weight part.

The resulting soap for washing the face had good foaming, good water solubility, and good usability.

[Example 10]
HPMC (2 wt% aqueous solution viscosity (20 ° C., B-type rotational viscometer 30 pm) 20 mPa · s) and hydroxypropylated high amylose corn starch (DS 0.12, amylose content 65 wt%, 20 wt% aqueous solution) Viscosity (50 ° C., B-type viscometer 10 rpm) 248,000 mPa · s), 25 parts of glycerin and soap base (mixed coconut saponified with coconut oil K and saponified coconut oil 2 to 1; moisture: 10 %) The soap for hand washing shown in Table 10 was made using 100 parts. The final moisture content was 11%. The numerical value in a table | surface shows a weight part.

The resulting hand-washing soap had good foaming, water solubility and good usability.

Claims (9)

It is at least one component selected from the group consisting of hydroxypropylmethylcellulose, methylcellulose, hydroxypropylcellulose, hydroxyethylcellulose, and hydroxyethylmethylcellulose, and the component is 2% by weight of the component alone or a mixture of two or more types ( Ingredient (a) whose viscosity of the aqueous solution is 2 to 30000 mPa · s when measured with a B-type rotational viscometer , etherified high amylose starch, esterified high amylose starch, and heated swelling A film-forming material (A) mixed with at least one component (b) selected from the group consisting of crosslinked starch having a degree of 15 or less and 1 or more, a plasticizer (B), and a soap substrate (C) (A) in the film-forming material (A) The mixing ratio of the component and the component (b) is 50 to 98% by weight (in terms of dry matter) of the component (a) with respect to the sum of the component (a) and the component (b), and the component (b) is 50 ~ 2% by weight (in terms of dry matter), and the blending ratio of the plasticizer (B) is 1 to 25 parts by weight (in terms of dry matter) with respect to 100 parts by weight of the film (in terms of dry matter). Is dissolved in water so that it is 30 to 80% by weight in terms of dry matter, with respect to the film weight (in terms of dry matter), and is formed into a sheet or film form. Sheet-like or film-like soap with excellent blocking properties.   The sheet-like or film-like soap according to claim 1, wherein the component (a) in the film-forming material (A) is hydroxypropylmethylcellulose and / or methylcellulose. When the viscosity of a 2% by weight (in terms of dry matter) aqueous solution of the component (a) in the film-forming material (A) is a single component or a mixture of two or more components of the component (a) is measured with a B-type rotational viscometer The sheet-shaped or film-shaped soap according to claim 1 , wherein the sheet-shaped or film-shaped soap is 5 to 10,000 mPa · s.   The sheet-like or film-like soap according to claim 1 or 2, wherein the etherified high amylose starch of component (b) in the film-forming material (A) is hydroxypropylated high amylose corn starch.   The sheet-like or film-like soap according to claim 1 or 2, wherein the esterified high amylose starch of component (b) in the film-forming material (A) is acetylated high amylose corn starch.   The sheet-like or film-like soap according to claim 1 or 2, wherein the crosslinked starch of component (b) in the film-forming material (A) is a crosslinked starch using natural starch or modified starch as a raw material starch.   The mixing ratio of the component (a) and the component (b) in the film forming material (A) is 60 to 95% by weight (dry matter) of the component (a) with respect to the total of the component (a) and the component (b) The sheet-like or film-like soap according to claim 1 or 2, wherein the component (b) is 40 to 5% by weight (in terms of dry matter). The sheet-like or film-like soap according to any one of claims 1 to 7 , wherein the film has a thickness of 20 µm to 200 µm. It is at least one component selected from the group consisting of hydroxypropylmethylcellulose, methylcellulose, hydroxypropylcellulose, hydroxyethylcellulose, and hydroxyethylmethylcellulose, and the component is 2% by weight of the component alone or a mixture of two or more types ( Ingredient (a) whose viscosity of the aqueous solution is 2 to 30000 mPa · s when measured with a B-type rotational viscometer , etherified high amylose starch, esterified high amylose starch, and heated swelling At least one (b) selected from the group consisting of cross-linked starch having a degree of 15 or less and 1 or more is mixed at a mixing ratio according to claim 1, dispersed and dissolved in water, and a plasticizer (B ) And soap base (C) are mixed and dissolved at the mixing ratio according to claim 1, A step of preparing a stock solution for forming a film, a step of adjusting the solid content concentration of the stock solution for forming a film and then forming into a film, and a drying and aging of the film to stabilize the moisture content of the film The manufacturing method of the sheet-like or film-shaped soap excellent in water solubility, drying resistance, and blocking resistance characterized by consisting of a process.