KR101852779B1 - Method for preparing mask pack sheet comprising algae fiber and mask pack sheet prepared thereby - Google Patents

Abstract

The present invention relates to a method for producing a mask pack sheet containing marine algae fibers, and a mask pack sheet produced therefrom. More specifically, the present invention relates to a method for producing a mask pack sheet, and a mask pack sheet produced therefrom. To this end, the method includes a step of improving wet strength through base treatment using caustic soda after production of the mask pack sheet. In addition, wet strength and moisturizing effects can be further improved by adding a marine algae extract. A method for manufacturing a sheet for a mask pack, and a sheet for a mask pack manufactured therefrom.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a method for producing a sheet for mask packs containing algae fibers and a sheet for mask packs prepared therefrom,

The present invention relates to a method for producing a sheet for a mask pack containing seaweed fibers and a sheet for a mask pack produced therefrom.

Non-woven fabric, which is a main component of synthetic fibers and mineral fibers, has been used as an excellent means of delivering various functional materials that are used for carrying cosmetics or medicines because they can maintain their strength even when they are inexpensive and immersed in water or a solvent. However, the conventional nonwoven fabric has a disadvantage in that it is not good in absorbability and moisture retaining ability of the fiber itself as a fiber structure bonded using a resin-based adhesive of synthetic fibers, and lacks absorption ability for various harmful substances accumulated in the skin . There are also cases where substances used as softeners of synthetic fibers contain environmental hormone-depleting substances.

Cellulosic materials such as cotton, hemp, flax, jute, jama, manila hemp, mulberry mulberry, mulberry, straw, esparto, bamboo, and bagasse have been studied as raw materials for natural fibers. However, And it was not an alternative because it required dissociation and bleaching process by a large amount of chemicals in the manufacturing process.

In recent years, interest in marine resources has increased as a result of the shortage of land resources, and the research and development of pulp using algae including red algae has begun in earnest. Seaweeds have a faster growth rate than the land-planted trees and do not require separate soil for cultivation. The extraction of the fibers for the mask pack is easy, and the production facilities are simple and inexpensive. come. In particular, algae for mask packs are excellent in water retention ability and can be made to contain water more than twice its own weight even under a centrifugal force of 3000 atm. However, since the sheet for mask packs produced from seaweeds can not maintain the necessary strength in the state of water as in the case of ordinary wood cellulose sheets, the wet strength increasing agent must be used for the sheet for mask packs. The wet strength enhancers are synthetic polymers containing elements such as chlorine, and thus are not desirable as materials that directly contact the skin.

Korean Patent No. 1230057 discloses a mask pack sheet containing a seaweed fiber and a method for producing the same, and Korean Patent No. 1013365 discloses a nonwoven fabric containing seaweed fibers and a method for producing the same. Discloses pulp and paper made from red algae and Korean Patent Laid-Open Publication No. 2005-0046601, and a method for producing the pulp and paper, and a method for producing a sheet for a mask pack comprising the seaweed fiber of the present invention and a method for producing the same There is no mention of sheets for mask packs.

The present invention provides a method for producing a sheet for a mask pack containing seaweed fibers and a sheet for a mask pack produced from the method, and a sheet for a mask pack manufactured by the method of the present invention is produced by a conventional method The wet strength is higher than that of the sheet for a mask pack produced by the method of the present invention.

In order to accomplish the above object, the present invention provides a method for producing algae fibers comprising the steps of: (1) preparing algae fiber comprising 5 to 40% by weight of a seaweed extracting component; (2) preparing a seaweed fiber sheet by uniformly dispersing the algae fibers alone or in combination with water in water; (3) treating the seaweed fiber sheet with 5-40% (w / v) basic solution at 30-80 ° C for 1-8 hours; And (4) neutralizing and drying the seaweed fiber sheet treated with the basic solution in the step (3) with acid, followed by drying.

The present invention also provides a sheet for a mask pack produced by the method for producing a sheet for a mask pack.

The present invention relates to a method for producing a sheet for a mask pack comprising seaweed fibers and a sheet for a mask pack produced therefrom, and more particularly to a method for producing a sheet for a mask pack comprising the steps of: (1) preparing algae fibers containing 5 to 40% ;

(2) preparing a seaweed fiber sheet by uniformly dispersing the algae fibers alone or in combination with water in water;

(3) treating the seaweed fiber sheet with 5-40% (w / v) basic solution at 30-80 ° C for 1-8 hours; And

(4) neutralizing the seaweed fiber sheet treated with the basic solution in the step (3) and neutralizing the dried seaweed fiber sheet, and drying the dried seaweed fiber sheet.

The present invention can enhance the wetting force of the mask pack by treating a strong base after the production of a seaweed fiber sheet, and further treat the seaweed extract component such as wool to provide a mask pack with improved wet grip strength.

Therefore, the sheet for a mask pack manufactured by the production method of the present invention is not torn when it is used in the form of a mask pack, a sheet, a patch, etc., and has excellent water retention ability, high shape retention ability, biodegradability, , The strength and the excellent harmful component adsorption effect increases the absorption amount and the absorption depth of the useful ingredient of the skin and greatly improves the feeling of use of the product and can be very usefully used.

1 is a flowchart schematically showing a manufacturing process of a sheet for a mask pack according to the present invention.

(1) preparing a seaweed fiber comprising 5 to 40% by weight of a seaweed extract component;

(2) preparing a seaweed fiber sheet by uniformly dispersing the algae fibers alone or in combination with water in water;

(3) treating the seaweed fiber sheet with 5-40% (w / v) basic solution at 30-80 ° C for 1-8 hours; And

(4) neutralizing the seaweed fiber sheet treated with the basic solution in the step (3) and neutralizing the dried seaweed fiber sheet, and drying the dried seaweed fiber sheet.

After the step (4), the dried seaweed fiber sheet may further be coated with the seaweed extract component, or the dried seaweed fiber sheet may be impregnated with the seaweed extract component.

The basic solution is preferably a caustic soda solution, but is not limited thereto.

The algae fiber of the step (1) is preferably at least one selected from red algae, green algae and brown algae, and the red algae may be selected from the group consisting of Leptospira, Cormorant, Spinos, Spinos, It is preferable that the green algae are those of green algae, chlorella, long-tailed gull, half-moon, hearing or gull, and the brown algae are preferably selected from the group consisting of seaweed, kelp, mackerel, But it is not limited thereto, and it can be produced from most seaweeds retaining underwater shape, and the main component of the seaweed fiber is galactose, fructose or cellulose.

The seaweed extract component to be further treated after step (1) or step (4) is preferably at least one selected from the group consisting of horseradish, alginic acid and carrageenan, more preferably, but not exclusively.

In the seaweed extraction component added after step (4), the whiteness of the low-gel strength or high gel strength may be a concentration of 1.5 wt%, and when the temperature condition is 20 ° C, the gel strength (gel strength) is 5g / cm ² Not more than, 100g / cm ² , And the gel strength is in the range of 1.5% by weight and the gel strength is 100 g / cm < ² > ~ 1000 g / cm ² It means inmu.

As a seaweed extract component, it is possible to make 99% or more of water in the form of jelly or jelly in solid form in an aqueous solution of 1% or less at room temperature. That is, it exists in a solid form containing water at least 100 times its own weight. If the sheet is present in the sheet in an amount of 5% or more, the sheet will contain a large amount of water, and when used as a mask pack, the sheet will be moistened for a long time and can maintain its shape. In addition, because of its excellent ability to remove heavy metals such as lead, copper, chromium, and cadmium, it also has the function of removing heavy metals from the skin contacted with heavy metals.

 The amount of the seaweed extract component added to the dried seaweed fiber sheet after the step (4) is not particularly limited, and the content of the seaweed extract component added to the dried seaweed fiber sheet may be 5 ~ By weight to 40% by weight, although not limited thereto.

The natural fiber in the step (2) may be wood pulp or non-wood pulp, and preferably at least one selected from wood pulp, cotton, hemp, wool and silk fiber. However, The use of natural fibers other than seaweed fibers can be used at 80% or less with respect to the dry weight of the finished sheet for a mask pack to facilitate the sheet forming process and maintain the strength.

The seaweed fiber produced in step (1) of the present invention can be specifically produced by the following method. For example, algae pretreated with alkali can be exposed to sunlight to dry to a clear and clear color, bleached with ozone, and subjected to fiberization by physical force, followed by washing and dehydration to produce seaweed fiber. Seaweed fibers do not require a separate pulping process and do not require toxic chemicals and can maintain a bright color without bleach.

As another example, algae fibers can be prepared for cleaning the seaweeds, then ozone-treated, extracted into extraction solvents, and then physically pulverized to produce sheets for mask packs. The seaweed fiber produced by the present invention may be characterized by containing water at least 2.0 times its own weight even under a centrifugal force of 3000 atm at room temperature.

 The present invention also relates to a sheet for a mask pack produced by the method for producing a sheet for a mask pack. The mask pack sheet does not contain a wet strength increasing agent and is characterized by having a wet strength of 15% or more based on the dry strength. There is no particular limitation on the shape of the sheet on which the oil-soluble component usable in the present invention is contained, and examples thereof include an organic solution or an aqueous solution in which an oil component is dissolved, a polymer particle carrying the active ingredient, , Nutritional lotion, massage cream, nutritional cream, lotion, ointment, gel and the like.

Hereinafter, the present invention will be described in more detail with reference to Examples. It is to be understood by those skilled in the art that these embodiments are merely illustrative of the present invention and that the scope of the present invention is not limited thereto.

[sample]

The seaweed fibers used in the examples and comparative examples of the present invention were mugwort collected from Morocco.

Comparative Example  1. Production of red algae fiber sheet containing 20% or more red algae fiber

The residue of 1 kg (dry weight) of the residue was placed in a high-pressure-resistant pulping machine, and 20 liters of a solution containing 1 wt% of caustic soda (sodium hydroxide) An aqueous alkaline solution was added to the pulper. Thereafter, it was pulped at 100 DEG C for 2 hours. After the pulping step, the residue was separated from the extract and subjected to fibration (beating) at 80 ° C for 10 minutes to form a residue, which was then squeezed with a fine cloth and concentrated to remove the dissolved extract . After the beating process and the concentration process were carried out three times in total, the bleached red algae fibers were obtained by performing bleaching twice using hydrogen peroxide.

The bleaching method was carried out at 5% concentration of the fibrous residue and 20% by weight of hydrogen peroxide (35% concentration) relative to the dry weight of the residue; 3% by weight of caustic soda; And 1% by weight of sodium silicate (sodium metasilicate) were added, and primary bleaching was carried out at 90 占 폚 for 1 hour. To the reaction mixture was added 10% by weight of hydrogen peroxide (35% concentration); 1.5 wt% caustic soda; And 0.5% by weight sodium silicate were added, and the secondary bleaching was carried out at 90 占 폚 for 1 hour. The bleached fibers were dehydrated by using a screen and a cleaner to remove impurities, and bleached red algae fibers were prepared.

Thereafter, the cellulose component was measured using the alpha-cellulose method. As a result, the cellulose component of the red algae fiber was 92% of the whole, and the red algae extract component was the bleached red algae fiber with the maximum amount of 8%.

The red algae fiber and the softwood chemical pulp were mixed in a weight ratio of 2: 8 to prepare a sheet having a basis weight of 20 g / m ² .

Comparative Example  2. Sheet production of red algae fiber containing 10% or more of low gel strength

The red algae fiber and the softwood chemical pulp were mixed in a weight ratio of 2: 8 to prepare a sheet having a basis weight of 20 g / m ^2. Thereafter, a sheet having a low gel strength of 1% at 80 ° C The procedure of impregnating the red algae sheet with the above red algae sheet, followed by cooling to 20 ° C was added.

The gel strength of the low gel strength was 1.5 wt% and the gel strength was 58 g / cm ² at 20 캜.

Comparative Example  3. Sheet production of red algae fiber containing 10% or more of high gel strength

The red algae fiber and the softwood chemical pulp were mixed in a weight ratio of 2: 8 to prepare a sheet having a basis weight of 20 g / m ^2. Thereafter, a sheet having a high gel strength of 1% at 80 ° C The procedure of impregnating the red algae sheet with the above red algae sheet, followed by cooling to 20 ° C was added.

The gel strength of the high gel strength was 1.5% by weight and the gel strength was 558 g / cm ² at 20 캜.

Example  1. Preparation of red algae fiber sheet improved wet strength by treating caustic soda

The red algae fiber and the softwood chemical pulp were mixed in a weight ratio of 2: 8 to prepare a sheet having a basis weight of 20 g / m < ² >, followed by treatment with a caustic soda solution Step was added. The caustic soda treatment was carried out by immersing the red algae sheet in a 25% (w / v) caustic soda solution at 40 ° C for 6 hours. Thereafter, the red algae fiber sheet was sufficiently neutralized with dilute acid again.

Example  2. Treatment with caustic soda and low gel strength Impregnated  Production of red algae fiber sheet

After being impregnated with a caustic soda solution and neutralized with dilute acid, the red algae fiber sheet was impregnated with a low gel strength wax solution at a concentration of 1% at 80 ° C., Lt; / RTI >

Example  3. Treatment with caustic soda and high gel strength Impregnated  Production of red algae fiber sheet

After being impregnated with a caustic soda solution and neutralized with dilute acid, the red algae fiber sheet was impregnated with a high gel strength wax solution at a concentration of 1% at 80 ° C, Lt; / RTI >

The characteristics of Examples 1 to 3 and Comparative Examples 1 to 3 were then compared and shown in Table 1.

Comparison of characteristics of sheets for red algae fiber mask pack Basis weight (g / m ² ) Dry heat treatment ^* (km) Wet heat treatment (km) Wet Elongation Ratio (%) Comparative Example 1 20.2 4.72 0.32 3.2 Comparative Example 2 20.1 - 0.25 5.8 Comparative Example 3 20.1 - 0.76 6.2 Example 1 20.0 4.52 1.98 7.3 Example 2 20.2 - 1.54 9.8 Example 3 20.0 - 2.26 10.2

* The column length is the value obtained by dividing the tensile strength by the basis weight in order to compare the tensile strength with the sheets having different basis weights.

As shown in Table 1, Comparative Example 1, which is a sheet for a seaweed fiber mask pack not subjected to a base (caustic soda) treatment, has a wet tensile strength remarkably higher than that of the sheet for a mask pack of Example 1 subjected to base (caustic soda) The possibility that the sheet for a mask pack tears during use for a real mask pack is very high. Therefore, in order to increase the wet tensile strength of the sheet prepared in Comparative Example 1, it is necessary to use urea formaldehyde, epoxidized polyamide resins such as PAE (polyaminoamide epichlorohydrin), Glyoxal It is necessary to increase the wet strength by using polymers such as PAM (glyoxalated polyacrylamide) or dialdehyde starch. However, it is safe that such polymers are not used as much as possible because of the potential for side effects that may occur in contact with the skin.

On the other hand, when the low gel strength and high gel strength of the present invention were treated in Examples 2 and 3, the high gel strength of the gel strength was higher than the wet strength of the sheet for the mask pack . When the wet strength is high, not only the mask pack sheet is not easily torn, but it is effective because it does not remain on the skin when it is detached from the skin after use and does not stimulate.

In addition, there is no toxicity to human skin and it is a very safe substance that does not cause any irritation even if left on the skin for a long time (Korean Journal of Oral and Maxillofacial Pathology 32 (3): 143-160, 2008) It is known that the adsorption characteristics of heavy metals are very excellent (Environmental Sanitation Engineering 13 (1): 174-184, 1998).

In conclusion, seaweed fiber has superior water retention and maintenance ability than general natural / synthetic fiber and seems to have a high ability to adsorb harmful substances. Therefore, it has high human safety and excellent efficacy as a cosmetic material such as a mask pack .

Claims (12)

(1) 5 to 40% by weight of a seaweed extracting component;
(2) preparing a seaweed fiber sheet by uniformly dispersing the algae fibers alone or in combination with water in water;
(3) treating the seaweed fiber sheet with 5 to 40% (w / v) of caustic soda solution at 30 to 80 ° C for 1 to 8 hours; And
(4) neutralizing the seaweed fiber sheet treated with the caustic soda solution in the step (3) with acid and drying the recovered seaweed fiber sheet. The method of claim 1, further comprising, after the step (4), further coating the dried seaweed fiber sheet with a seaweed extract component or impregnating the dried seaweed fiber sheet into an algae extract component Wherein said mask pack has a thickness of 10 mm or less. delete [2] The method of claim 1, wherein the algae fibers of step (1) are at least one selected from red algae, green algae and brown algae. The method according to claim 1, wherein the seaweed extract component of step (1) is at least one selected from the group consisting of horseradish, alginic acid and carrageenan. The method according to claim 1, wherein the natural fibers in step (2) are wood pulp or non-wood pulp. delete delete delete delete A sheet for a mask pack produced by the method for manufacturing a sheet for a mask pack according to any one of claims 1, 2, and 4 to 6. 12. The sheet for a mask pack according to claim 11, wherein the mask pack sheet does not include a wet strength increasing agent and has a wet strength of 15% or more based on the dry strength.

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