WO2021225219A1 - Feuille de bloc de masque de cellulose régénérée présentant une excellente transparence et son procédé de fabrication - Google Patents

Feuille de bloc de masque de cellulose régénérée présentant une excellente transparence et son procédé de fabrication Download PDF

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WO2021225219A1
WO2021225219A1 PCT/KR2020/008771 KR2020008771W WO2021225219A1 WO 2021225219 A1 WO2021225219 A1 WO 2021225219A1 KR 2020008771 W KR2020008771 W KR 2020008771W WO 2021225219 A1 WO2021225219 A1 WO 2021225219A1
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Prior art keywords
mask pack
regenerated cellulose
nonwoven fabric
transparency
pack sheet
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PCT/KR2020/008771
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English (en)
Korean (ko)
Inventor
이권선
최부기
이승관
김경학
Original Assignee
주식회사 셀바이오휴먼텍
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Publication of WO2021225219A1 publication Critical patent/WO2021225219A1/fr

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    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D44/00—Other cosmetic or toiletry articles, e.g. for hairdressers' rooms
    • A45D44/002—Masks for cosmetic treatment of the face
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
    • D06M13/207—Substituted carboxylic acids, e.g. by hydroxy or keto groups; Anhydrides, halides or salts thereof
    • D06M13/21—Halogenated carboxylic acids; Anhydrides, halides or salts thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0212—Face masks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/425—Cellulose series
    • D04H1/4258—Regenerated cellulose series
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
    • D06B15/02—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours by squeezing rollers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
    • D06M13/188—Monocarboxylic acids; Anhydrides, halides or salts thereof
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D2200/00—Details not otherwise provided for in A45D
    • A45D2200/10—Details of applicators
    • A45D2200/1009—Applicators comprising a pad, tissue, sponge, or the like
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/04—Vegetal fibres
    • D06M2101/06—Vegetal fibres cellulosic

Definitions

  • the present invention relates to a regenerated cellulose mask pack sheet having excellent transparency and a manufacturing method thereof, and more particularly, a mask pack sheet product capable of further satisfying product excellence by greatly improving the transparency of a skin care mask pack, and manufacturing thereof it's about how
  • the mask pack sheet is attached to the skin surface and removed after a certain period of time, and is used to supply moisture, oil, and nutrition contained in the mask pack sheet to the skin.
  • Existing mask pack sheets are manufactured by using materials such as polypropylene, polyethylene terephthalate and cellulose alone or by mixing them.
  • the mask pack sheet made of synthetic materials such as polypropylene and polyethylene terephthalate has low adhesion and water retention to the skin, so it has a low ability to deliver functional active ingredients corresponding to moisturizing, soothing, and elasticity to the skin. .
  • the regenerated cellulose fiber is an eco-friendly polymer having a chemical structure like natural cotton fiber, and a large number of cellulose unit molecules are gathered to form a fiber.
  • the regenerated cellulose fiber consists of a crystalline region and an amorphous region, and when immersed in water, the liquid permeates the amorphous region and swells. Due to these properties, the mask pack sheet using the regenerated cellulose fiber is known to have excellent adhesion and water retention to the skin.
  • the regenerated cellulose fiber has a limit in exhibiting the high level of transparency required by consumers. Nevertheless, the demand for regenerated cellulose fibers, which are natural materials and have excellent price/performance ratio, continues to grow.
  • the present applicant has applied for Korean Patent Application No. 10-2019-0054472, 'Title of the invention: mask pack sheet product using low-substituted carboxymethyl cellulose nonwoven fabric and manufacturing method thereof'.
  • the invention relates to a mask pack sheet capable of increasing productivity at low cost while satisfying water retention.
  • An object of the present invention for solving the above problems is to provide a regenerated cellulose mask pack sheet capable of satisfying transparency and a manufacturing method thereof.
  • an object of the present invention is to provide a method for manufacturing a mask pack sheet product in which the concentration of a carboxymethylating agent is controlled to improve transparency and at the same time control tensile strength, which is a physical property that can maintain the product shape of the mask pack.
  • the non-woven fabric sheet for a low-substituted carboxymethyl cellulose mask pack according to an embodiment of the present invention for achieving the above object is a transparency measurement experiment using a difference in contrast in a state of being immersed in water, and it is characterized in that it satisfies Equation 1 below.
  • Equation 1 100 ⁇ d2 - d1
  • the cellulose mask pack sheet has a carboxymethyl group substitution degree of 0.05 to 0.3.
  • the present invention for achieving the above object is prepared by immersing a regenerated cellulose nonwoven fabric in an alkaline solution to pad it, and reacting it with a carboxymethylating agent.
  • the mask pack sheet according to the present invention constructed and operated as described above has the advantage of greatly enhancing the feeling of satisfaction when attached to the face as transparency is greatly improved.
  • the non-woven fabric for a low-substituted carboxymethyl cellulose mask pack having excellent transparency according to the present invention and a manufacturing method thereof have excellent transparency and can be used in various materials and weights, so that the use range of the mask pack essence can be broadened.
  • the non-woven fabric for a low-substituted carboxymethyl cellulose mask pack having excellent transparency according to the present invention and a method for manufacturing the same have the advantage that it is possible to manufacture various products because the cellulose-based non-woven fabric whose safety and efficacy have been verified.
  • FIG. 1 is a flowchart of a method for manufacturing a cellulose mask pack sheet having excellent transparency according to the present invention
  • FIG. 2 is a detailed flowchart of a method for manufacturing a cellulose mask pack sheet having excellent transparency according to the present invention
  • FIG. 3 is a view showing the transparency testing equipment of the cellulose mask pack sheet having excellent transparency according to the present invention.
  • the regenerated cellulose mask pack sheet having excellent transparency according to the present invention is prepared by immersing a regenerated cellulose nonwoven fabric in an alkaline solution to pad it, and reacting it with a carboxymethylating agent.
  • the regenerated cellulose mask pack sheet is a transparency measurement experiment using a difference in contrast in a state of being immersed in water. do.
  • Equation 1 100 ⁇ d2 - d1
  • a) pretreatment by immersing the cellulose nonwoven fabric in an alkali solution (b) squeezing the pretreated cellulose nonwoven fabric, (c) carboxymethyl in water Dissolving a reagent to prepare a reaction solution, (d) adding the squeezed cellulose nonwoven fabric to the reaction solution to replace the hydroxy group located at the end of the cellulose nonwoven fabric with a carboxymethyl group to obtain a carboxymethyl group substitution degree of 0.05 to 0.3
  • the present invention can manufacture a mask pack sheet product having a carboxymethyl group substitution degree of cellulose nonwoven fabric of 0.05 to 0.3 by controlling the concentration of the reaction solution and the reaction solution in which the carboxymethylating agent is dissolved in water.
  • FIG. 1 is a flowchart showing a method for manufacturing a mask pack sheet product using a regenerated cellulose nonwoven fabric having excellent transparency according to the present invention
  • FIG. 2 is a detailed flowchart.
  • the method for manufacturing a mask pack sheet having excellent transparency includes a step (S10) and a squeezing step (S20) of immersing in an aqueous alkali solution and reacting the cellulose nonwoven fabric with a carboxymethylating agent (S30). consists of including
  • S100 alkaline solution
  • S200 step of squeezing
  • S300 a reaction solution
  • S400 drying after compression
  • This step is a process of immersing and aging the cellulose nonwoven fabric in an alkaline solution so that the reaction process is smoothly performed. If the pretreatment process is not sufficiently performed, the pretreatment process is very important because the substitution reaction does not occur. Since fabric properties change according to the temperature and time of the pretreatment process, the pretreatment process is a process that requires careful control.
  • the nonwoven fabric for mask packs used in the present invention is a regenerated cellulose-based nonwoven fabric for mask packs, characterized in that it has bidirectionality and has a weight of 25 to 70 g/m 2 .
  • the alkali solution in which the cellulose nonwoven fabric is immersed has a concentration of 15 to 40%.
  • the alkali solution can be used by mixing one or more chemical substances with high alkalinity such as sodium hydroxide (NaOH), potassium hydroxide (KOH), aqueous ammonia (NHOH), or trimethyl ammonium hydroxide. .
  • sodium hydroxide sodium hydroxide
  • KOH potassium hydroxide
  • NHOH aqueous ammonia
  • trimethyl ammonium hydroxide trimethyl ammonium hydroxide.
  • the concentration of the alkali solution is less than 15%, it is difficult to obtain the required degree of substitution due to the low alkalinity. Conversely, when it exceeds 40%, the degree of substitution with the carboxymethyl solution increases and the degree of substitution is excessively high, or a lot of side reactions occur, which may lead to deterioration of the physical properties of the fabric.
  • the cellulose nonwoven fabric After the cellulose nonwoven fabric is immersed in an alkali solution, it should undergo an aging process. Aging is a process for dissociating hydrogen bonds of cellulose molecules, usually at a temperature of 20 to 70°C. If the temperature is lower than 20°C, it takes too much time for proper aging. If it exceeds 70 °C, a lot of overreaction may occur, leading to embrittlement of the fiber. Also, the ripening time should be controlled.
  • the aging time varies depending on the mixing ratio, immersion time, aging temperature and the characteristics of equipment, it is preferable to measure and optimize the degree of substitution of the final nonwoven fabric.
  • the aged cellulose nonwoven fabric must be appropriately squeezed while passing through two rollers whose pressure is controlled.
  • the squeezing step is a process of removing the remaining amount while leaving only a desired part of the alkali solution used for aging in the cellulose nonwoven fabric, and is a very important factor in determining the amount of the alkali solution remaining in the nonwoven fabric.
  • the squeezing determines the fabric pick-up rate by controlling the pressure between the rolls, and 200 to 500% is preferable based on the pick-up rate.
  • the pick-up rate (%) represents the amount of the alkali solution remaining in the cellulose nonwoven fabric after immersion as a ratio of the dry weight of the cellulose nonwoven fabric.
  • the pickup rate (%) is (wet weight - dry weight)/dry weight x 100.
  • the pick-up rate is less than 200%, hydrogen bond dissociation of the cellulose molecule may be insufficient to control the degree of substitution. Conversely, when the pick-up rate exceeds 500%, hydrogen bond dissociation of cellulose molecules is excessively made, and the degree of substitution may be excessively high.
  • reaction solution is prepared by dissolving a carboxymethylating agent in water.
  • the carboxymethylating agent is a chemical in which carboxymethyl can be substituted in the cellulose nonwoven fabric, and halogenated acetic acid such as monochloroacetic acid, monobromoacetic acid, monoiodoacetic acid, or a neutralized product thereof may be used.
  • the carboxymethylating agent is the most important factor determining the degree of substitution, and it is preferable to prepare a reaction solution by dissolving 20 to 60% by weight of the carboxymethylating agent in 40 to 80% by weight of water.
  • the addition amount of the reaction solution is less than 20% by weight, there is a problem in that the degree of substitution is lowered, and when it exceeds 60% by weight, oversubstitution may be made.
  • the water used may be distilled water, ion-exchanged water, or RO water (water filtered by reverse osmosis) from which metal components causing side reactions have been removed to prevent side reactions. If the metal content in the water exceeds 50 ppm, side reactions may occur.
  • the metal may be calcium, magnesium, iron, copper, or the like.
  • a cellulose nonwoven fabric squeezed into the prepared reaction solution is put in, re-dipping, and heat treatment is performed to perform a substitution reaction.
  • the reaction solution is 1: 2 to 1: 8, and more preferably 1: 4 to 1: 6.
  • the content of the reaction solution with respect to the squeezed cellulose nonwoven fabric is less than two times, the content of the reaction solution is not sufficient and the substitution reaction rate is low. Conversely, when the content of the reaction solution exceeds 8 times, there is a problem in that the side reaction rate is increased.
  • the substitution reaction may induce a reaction through heat treatment at 70 to 150°C, and when it is lower than 70°C, the degree of substitution is low, and when it is higher than 150°C, the fabric may be torn by causing embrittlement of the fibers.
  • the substitution reaction may proceed within 5 minutes, and if it exceeds 5 minutes, overreaction may occur.
  • the substitution reaction is to replace the hydroxyl group (-OH) located at the end of the dehydrated cellulose nonwoven fabric with an anionic group such as a carboxymethyl group.
  • the carboxymethyl group may be exemplified by -CH2COO-Na+.
  • the substituted cellulose nonwoven fabric exhibits anionic water solubility, high water retention (property to protect/retain moisture) and high transparency.
  • water or a mixed solution of water and an alcohol-based organic solvent may be used to remove unreacted substances of the cellulose nonwoven fabric derivative and washed with water 2 to 3 times.
  • an acidic agent such as sulfuric acid, phosphoric acid, hydrochloric acid or formic acid, acetic acid.
  • the substituted cellulose nonwoven fabric is compressed and dried to prepare a mask pack sheet product.
  • the manufactured mask pack sheet product is preferably in the form of a non-woven fabric.
  • the compression may be performed at 25 ⁇ 10° C., preferably by applying pressure at 25 ⁇ 5° C.
  • the dried mask pack sheet product is immersed in a solution containing at least one skin improvement function of moisturizing, soothing, elasticity, wrinkle improvement, and whitening, effect can be shown.
  • a reaction solution obtained by dissolving a carboxymethylating agent in water is used, and as the concentration of the reaction solution is adjusted, a low-substituted carboxymethyl that satisfies a transparency value of 100 or more using a difference in contrast in a state of being immersed in water.
  • Cellulose mask pack sheet products can be manufactured.
  • the mask pack sheet product using the low-substituted carboxymethyl cellulose nonwoven fabric of the present invention exhibits high transparency and can be utilized as a product with excellent performance compared to the price.
  • the mask pack sheet product manufactured according to the manufacturing method of the present invention is characterized in that it has a weight of 25 to 70 g/m 2 .
  • the mask pack sheet product manufactured according to the manufacturing method of the present invention is characterized in that the carboxymethyl group substitution degree is 0.05 to 0.3.
  • the mask pack sheet product As the mask pack sheet product is immersed in an essence or solution having a skin improvement function, it may contain a component exhibiting at least one skin improvement function among moisturizing, soothing, elasticity, wrinkle improvement and whitening.
  • the mask pack sheet product of the present invention can be in contact with the skin for cosmetic purposes, and provides a skin improvement effect.
  • the mask pack sheet product according to the present invention uses water and adjusts the concentration of the carboxymethylation solution, so that it satisfies the following formula 1 as a transparency measurement experiment using a difference in light and shade in a state immersed in water.
  • Equation 1 100 ⁇ d2 - d1
  • the mask pack sheet product exhibits high transparency and at the same time maintains the required shape as a mask pack sheet product.
  • reaction solution in which 20 wt% of monochloroacetic acid (MCA) was dissolved in 80 wt% of distilled water was prepared in a reactor.
  • MCA monochloroacetic acid
  • the squeezed cellulose nonwoven fabric was mixed so that the weight ratio of the reaction solution was 1: 5, and the substitution reaction was performed at 90° C. for 4 minutes.
  • CMC carboxymethyl cellulose
  • reaction solution in which 35 wt% of monochloroacetic acid (MCA) was dissolved in 65 wt% of distilled water was prepared in a reactor.
  • MCA monochloroacetic acid
  • the squeezed cellulose nonwoven fabric was mixed so that the weight ratio of the reaction solution was 1: 5, and the substitution reaction was performed at 90° C. for 5 minutes.
  • reaction solution obtained by dissolving 30% by weight of monochloroacetic acid (MCA) in 70% by weight of distilled water was prepared in a reactor.
  • MCA monochloroacetic acid
  • the squeezed cellulose nonwoven fabric was mixed so that the weight ratio of the reaction solution was 1: 5, and the substitution reaction was performed at 90° C. for 3 minutes.
  • reaction solution obtained by dissolving 30% by weight of monochloroacetic acid (MCA) in 70% by weight of distilled water was prepared in a reactor.
  • MCA monochloroacetic acid
  • the squeezed cellulose nonwoven fabric was mixed so that the weight ratio of the reaction solution was 1: 5, and the substitution reaction was performed at 90° C. for 3 minutes.
  • a lyocell nonwoven fabric having a weight of 26 g/m2 and tensile strength and elongation shown in [Table 5] was prepared by DuPont in the United States.
  • a lyocell nonwoven fabric having a weight of 34 g/m2 and tensile strength and elongation shown in [Table 6] was prepared by DuPont in the United States.
  • the existing evaluation method using transmittance is mainly an evaluation method for film-type material or liquid material, and it is difficult to reflect the performance value that users of mask pack products agree with.
  • the evaluation method was devised by using it. As the transparency is excellent, the image of the back side of the fabric absorbed by the liquid is projected more clearly, and as a result of analysis using an image analysis program, a large difference in contrast is shown.
  • FIG 3 is a view showing the transparency test equipment of the cellulose mask pack sheet excellent in transparency according to the present invention
  • Figure 4 is an image showing the analysis result through the transparency test equipment of the cellulose mask pack sheet excellent transparency according to the present invention .
  • a sample is placed on a white plate on which a black dot image is printed, and the sample is measured with a camera for measuring transparency to obtain a value of the black dot and white background appearing on the sample.
  • the contrast value of the white background and the contrast value of the black point are obtained through the image analysis program, and the difference is evaluated as the transparency of the corresponding sample.
  • FIG. 5 is an image showing the transparency test of Examples 1 to 4 according to the present invention
  • FIG. 6 is an image showing the transparency test of Comparative Examples 1 to 4 according to the present invention. As shown, in Examples 1 to 4, the following Equation 1 is satisfied as a transparency measurement experiment according to the present invention.
  • Equation 1 100 ⁇ d2 - d1
  • the D1 (contrast floor) and D2 (contrast background) values are obtained using an image analysis program.
  • the transparency value is obtained using the following formula (Equation 1), and the higher the transparency value, the better the transparency is evaluated.
  • [Table 9] shows the transparency values using the difference in contrast in the state that the nonwoven fabric for the mask pack was immersed in water before and after the reaction according to Examples 1 to 4, respectively.
  • Example 1 30g/m2 150.8 55.4 95.5 197.9 59.2 138.7
  • Example 2 40g/m2 170.8 65.7 95.1 206.2 72.3 133.9
  • Example 3 50g/m2 179.5 85.1 94.4 185.1 60.7 124.4
  • Example 4 60g/m2 161.0 71.9 89.1 178.1 61.9 116.2
  • [Table 11] shows the measured tensile strength and elongation in the MD direction and CD direction for the mask pack nonwoven fabric before and after the reaction according to Examples 1 to 4, and [Table 12] shows the reaction according to Examples 1 to 4 It is shown by measuring the weight and thickness of the nonwoven fabric for mask pack before and after the reaction.
  • Example 1 30g/m2 8.12 33.54 9.24 37.14 8.04 32.25 7.45 34.49
  • Example 2 40g/m2 8.67 30.39 9.78 36.34 8.21 31.25 7.68 33.86
  • Example 3 50g/m2 9.61 34.32 10.96 37.73 8.12 29.25 7.59 30
  • Example 4 60g/m2 10.26 33.39 11.68 34.42 9.24 27.47 8.45 28.14
  • Example 1 35g/m2 0.255 34.5 0.262
  • Example 2 40g/m2 0.287 41.2 0.284
  • Example 3 50g/m2 0.312 47.5 0.309
  • Example 4 60g/m2 0.331 61.1 0.327
  • the present invention configured as described above has the advantage that the mask pack sheet according to the present invention greatly improves the transparency, and thus can greatly increase the wearing satisfaction when attached to the face.

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Abstract

La présente invention concerne une feuille de bloc de masque de cellulose régénérée présentant une excellente transparence et son procédé de fabrication, dans laquelle la feuille de bloc de masque de cellulose régénérée est préparée par trempage d'un tissu non tissé de cellulose régénérée dans une solution alcaline, le rembourrage et sa réaction avec un agent de carboxyméthylation, dans laquelle la transparence du tissu non-tissé de cellulose régénérée ayant réagi avec l'agent de carboxyméthylation, telle que mesurée par un test de mesure de transparence à l'aide d'une différence de luminosité, satisfait l'expression 1. (où d1 est la luminosité au fond (point noir) et d2 est la luminosité à l'arrière-plan (fond blanc).) Expression 1 : 100 ≤ d2 - d1
PCT/KR2020/008771 2020-05-07 2020-07-06 Feuille de bloc de masque de cellulose régénérée présentant une excellente transparence et son procédé de fabrication WO2021225219A1 (fr)

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CN114960179A (zh) * 2021-12-06 2022-08-30 细胞生物科技有限公司 一种阴离子纤维素无纺布的制造方法及使用阴离子纤维素无纺布的面膜

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