Method for manufacturing cooling mask pack sheet

Abstract

A method for manufacturing a cooling mask pack sheet comprises the steps of: preparing a non-woven fabric comprising biodegradable mint fiber and regenerated cellulose; forming the temperature of the prepared non-woven fabric at 30-32°C; forming the non-woven fabric to have a tensile strength in a first direction of 30-35 N / 1.5 cm2, an elongation of 35-38%, a tensile strength in a second direction perpendicular to the first direction of 15-20 N / 1.5 cm2, and an elongation of 35-40% by varying hydraulic pressure applied thereto; and manufacturing a cooling mask pack sheet to have a liquid absorption capacity of 14-17 g / g, a liquid retention capacity of 10-13 g / g, a moisture retention rate of 55-65%, and an adhesion of 300-315 mg.

Description

Method for manufacturing cooling mask pack sheets

[0001] The present invention relates to a method for manufacturing a cooling mask pack sheet, and more specifically, to a method for manufacturing a cooling mask pack sheet having a temperature-reducing effect.

[0002] Mask sheets are used to supply nutrients to the surface of the face and come in various types, including liquid immersion, gel, and rinse-off forms. The skin is significantly affected by external weather conditions, and changes in skin temperature due to the seasons often lead to skin problems. While the efficacy of cosmetics varies by season, and mask packs also contribute to the skin's benefits, there are limitations to achieving these effects solely through cosmetic ingredients.

[0003] Especially during the hot summer, rising temperatures can cause skin problems such as dehydration, enlarged pores, and inflammation, meaning the nutrients in face masks may not only fail to help the skin but actually have a negative impact.

[0004] Conventional cooling mask sheets provide cooling in a soaked solution or in a gel state rather than as a non-woven sheet, so the cooling effect is insufficient for consumers to feel in commonly used non-woven sheet masks.

[0005] Therefore, the objective of the present invention is to provide a method for manufacturing a cooling mask pack sheet that is a nonwoven sheet made of natural raw materials, peppermint fiber and regenerated cellulose, rather than a cosmetic or gel sheet, and can exert a skin soothing effect by providing its own cooling effect.

[0006] A method for manufacturing a cooling mask pack sheet according to the present invention for achieving the above objective comprises the steps of: preparing a nonwoven fabric comprising biodegradable peppermint fibers and regenerated cellulose; forming the temperature of the prepared nonwoven fabric to 30 to 32°C; varying the water pressure of the nonwoven fabric to form a first-direction tensile strength of 30 to 35 N / 1.5 cm², an elongation of 35 to 38%, a second-direction tensile strength of 15 to 20 N / 1.5 cm² perpendicular to the first direction, and an elongation of 35 to 40%; and manufacturing the sheet with a liquid absorption of 14 to 17 g / g, a liquid retention of 10 to 13 g / g, a moisture retention rate of 55 to 65%, and an adhesion of 300 to 315 mg. Since the sheet is manufactured using regenerated cellulose fibers and biodegradable peppermint fibers, the skin temperature reduction effect can be improved.

[0007] Here, the peppermint fiber can be produced using a peppermint extract in any one of the manufacturing methods of rayon, Tencel, Modal, Lyocell, and Cupro.

[0008] And, the regenerated cellulose fiber may be any one of cotton, pulp, rayon, Tencel, bamboo, linen, and silk.

[0009] Here, the nonwoven fabric may be composed of a mixture of 60 to 80% general regenerated cellulose fibers and 20 to 40% biodegradable peppermint fibers.

[0010] And, the step of manufacturing with an adhesion force of 300 to 315 mg may include: a step of mixing 60 to 80% of regenerated cellulose fibers and 20 to 40% of peppermint fibers; a step of forming a first nonwoven fabric sheet by combing and unraveling the mixed first fibers in a first direction; a step of forming a cooling mask pack sheet by high-pressure water jet bonding the first nonwoven fabric sheet, which is formed with a water immersion diameter of 110 to 120 μm and a pressure of 50 to 60 bar in a front portion area and a water immersion diameter of 80 to 100 μm and a pressure of 100 to 130 bar in the remaining area; and a step of drying and winding the cooling mask pack sheet formed by high-pressure water jet bonding.

[0011] Here, the above liquid absorption rate, the above liquid retention rate, and the above moisture retention rate can be calculated using the following formula.

[0012] Absorption = (w2-w1) / w1

[0013] w1: Weigh a 3cm x 3cm specimen before water absorption, immerse for 20 minutes, lift the specimen for 30 seconds to remove moisture, and then weigh (w2)

[0014] Replenishment = (w3-w1) / w1

[0015] Measure weight (w3) after pressing a weight onto a wet specimen measuring 3 cm by 3 cm for about 1 minute

[0016] Moisture retention rate = 100-{(w2-w3)*100 / (w2-w1)}

[0017] Measure the weight (w1) of a specimen with width and length 10 cm before absorbing water, add water equal to 40 times the weight of the specimen to the specimen and absorb water for 30 minutes (water temperature 37.5℃), lift the specimen for 30 seconds and measure the weight (w2), then dry in a 37.5℃ oven for 20 minutes, and measure the weight after 30 seconds (w3).

[0018] In addition, the above nonwoven fabric may be composed of 40 to 100 g / m².

[0019] According to the present invention, a mask pack sheet containing biodegradable peppermint fibers has the effect of lowering elevated skin temperature and providing a skin soothing effect by mixing the temperature-reducing effect of the peppermint fibers with general cellulose-based fibers, thereby maintaining the performance of existing sheets regarding important adhesion, moisturizing power, and moisture retention of the mask pack.

[0020] Figure 1 is thermal image data of the nonwoven sheet of the present invention when attached to the skin after immersion in distilled water.

[0021] Figure 2 shows thermal image data when nonwoven sheets are attached to the skin according to the ratio of yarn-mixed fibers.

[0022] Figure 3 is thermal image data of the developed nonwoven sheet in a dry state when attached to the skin.

[0023] Figure 4 is an example diagram illustrating the manufacturing process of a nonwoven sheet.

[0024] Hereinafter, a method for manufacturing a cooling mask pack sheet according to a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0025] Figure 1 is thermal image data when the nonwoven sheet of the present invention is attached to the skin after immersion in distilled water. Figure 2 is thermal image data when the nonwoven sheet is attached to the skin according to the ratio of fibers mixed with yarn. Figure 3 is thermal image data when the nonwoven sheet in the dry state of the developed nonwoven fabric is attached to the skin. Figure 4 is an example diagram illustrating the manufacturing process of the nonwoven sheet.

[0026] A method for manufacturing a cooling mask pack sheet is described with reference to FIGS. 1 to 4.

[0027] The method for manufacturing a cooling mask pack sheet according to the present invention is as follows.

[0028] First, prepare a nonwoven fabric containing biodegradable peppermint fibers and regenerated cellulose.

[0029] Secondly, the temperature of the prepared nonwoven fabric is formed to 30 to 32°C.

[0030] Thirdly, by varying the water pressure of the above nonwoven fabric, a first-direction tensile strength of 30 to 35 N / 1.5 cm² and an elongation of 35 to 38%, a second-direction tensile strength of 15 to 20 N / 1.5 cm² perpendicular to the first direction and an elongation of 35 to 40% are formed.

[0031] Fourth, it is manufactured with a liquid absorption rate of 14 to 17 g / g, a liquid retention rate of 10 to 13 g / g, a moisture retention rate of 55 to 65%, and an adhesion rate of 300 to 315 mg.

[0032] Here, the peppermint fiber can be produced using a peppermint extract in any one of the manufacturing methods of rayon, Tencel, Modal, Lyocell, and Cupro.

[0033] And, the regenerated cellulose fiber may be any one of cotton, pulp, rayon, Tencel, bamboo, linen, and silk.

[0034] The above nonwoven fabric may be composed of a mixture of 60 to 80% general regenerated cellulose fibers and 20 to 40% biodegradable peppermint fibers.

[0035] The method for manufacturing a deformable cooling mask pack sheet is as follows.

[0036] First, prepare a nonwoven fabric containing biodegradable peppermint fibers and regenerated cellulose.

[0037] Secondly, the temperature of the prepared nonwoven fabric is formed to 30 to 32°C.

[0038] Thirdly, by varying the water pressure of the above nonwoven fabric, a first-direction tensile strength of 30 to 35 N / 1.5 cm² and an elongation of 35 to 38% are formed, and a second-direction tensile strength of 15 to 20 N / 1.5 cm² and an elongation of 35 to 40% are formed perpendicular to the first direction.

[0039] Fourth, it is manufactured with a liquid absorption rate of 14 to 17 g / g, a liquid retention rate of 10 to 13 g / g, a moisture retention rate of 55 to 65%, and an adhesion rate of 300 to 315 mg.

[0040] Fifth, 60 to 80% of regenerated cellulose fibers and 20 to 40% of peppermint fibers are mixed.

[0041] Sixth, the mixed first fibers are combed in the first direction to unravel them and form a first nonwoven sheet.

[0042] Seventh, a cooling mask pack sheet is formed by high-pressure water flow bonding of the first nonwoven fabric sheet, in which a portion of the front area has a water immersion diameter of 110 to 120 μm and a pressure of 50 to 60 bar, and the remaining area has a water immersion diameter of 80 to 100 μm and a pressure of 100 to 130 bar.

[0043] Eighth, the cooling mask pack sheet formed by combining with a high-pressure water stream is dried and rolled.

[0044] Here, the above liquid absorption rate, the above liquid retention rate, and the above moisture retention rate can be calculated using the following formula.

[0045] Absorption = (w2-w1) / w1

[0046] w1: Weigh a 3cm x 3cm specimen before water absorption, immerse for 20 minutes, lift the specimen for 30 seconds to remove moisture, and then weigh (w2)

[0047] Replenishment = (w3-w1) / w1

[0048] Measure weight (w3) after pressing a weight onto a wet specimen measuring 3 cm by 3 cm for about 1 minute

[0049] Moisture retention rate = 100-{(w2-w3)*100 / (w2-w1)}

[0050] Measure the weight (w1) of a specimen with width and length 10 cm before absorbing water, add water equal to 40 times the weight of the specimen to the specimen and absorb water for 30 minutes (water temperature 37.5℃), lift the specimen for 30 seconds and measure the weight (w2), then dry in a 37.5℃ oven for 20 minutes, and measure the weight after 30 seconds (w3).

[0051] In addition, the above nonwoven fabric may be composed of 40 to 100 g / m².

[0052] Figure 1 is thermal image data of the nonwoven sheet of the present invention when attached to the skin after immersion in distilled water.

[0053] Fig. 1 (a) Thermal image data taken immediately after attaching to the skin after immersing a cooling mask pack sheet containing 30% peppermint fiber (20) in water.

[0054] Fig. 1 (b) is thermal image data after 10 minutes have passed since attaching a cooling mask pack sheet containing 30% peppermint fiber (20) to the skin after immersing it in water.

[0055] It can be confirmed that the temperature reduction performance is superior 10 minutes after application to the skin compared to immediately after application. It can be observed that the temperature reduction performance of the cooling mask pack sheet improves over time.

[0056] Figure 2 shows thermal image data when nonwoven sheets are attached to the skin according to the ratio of yarn-mixed fibers.

[0057] Figure 2 (a) shows thermal image data taken immediately after attaching to the skin following immersion in water of a cooling mask pack sheet containing 10% peppermint fiber.

[0058] Figure 2 (b) shows thermal image data taken immediately after attaching to the skin after immersing a cooling mask pack sheet containing 30% peppermint fiber in water.

[0059] It can be confirmed that a cooling mask pack sheet containing 30% peppermint fiber has superior temperature reduction performance compared to 10% peppermint fiber immediately upon application to the skin. It can be confirmed that the temperature reduction performance of the cooling mask pack sheet improves as the peppermint fiber content increases.

[0060] Figure 3 is thermal image data of the developed nonwoven sheet in a dry state when attached to the skin.

[0061] Fig. 3 (a) The experimenter is in a state where the cooling mask pack sheet is not attached.

[0062] Fig. 3 (b) is an example of a thermal image immediately after attaching a cooling mask pack sheet.

[0063] Fig. 3 (c) is an example of a thermal image taken 1 minute after attaching a cooling mask pack sheet.

[0064] Fig. 3 (d) is an example of a thermal image taken 3 minutes after attaching a cooling mask pack sheet.

[0065] Fig. 3 (e) is an example of a thermal image taken 5 minutes after attaching a cooling mask pack sheet.

[0066] It can be confirmed that the temperature reduction performance of the cooling mask pack sheet improves as the peppermint fiber content increases.

[0067] Figure 4 is an example diagram illustrating the manufacturing process of a nonwoven sheet.

[0068] In the first step, a carding process is performed in which a first fiber is combed in the first direction and unraveled, in a mixing ratio of 60 to 80 parts by weight and 20 to 40 parts by weight of a regenerated cellulose fiber, which is one of cotton, pulp, rayon, Tencel, bamboo, hemp, and silk, and a peppermint extract, which is produced by one of the manufacturing methods of rayon, Tencel, Modal, Lyocell, and Cupro.

[0069] A web forming process is performed to form a web of the first fibers unraveled in two stages.

[0070] In the third step, the web-formed sheet is combined with a high-pressure water stream to form the first nonwoven sheet.

[0071] In step 4, the first nonwoven sheet is dried with high-temperature hot air.

[0072] The first nonwoven sheet, dried in five steps, is wound into a roll shape.

[0073]

[0074] An example is described.

[0075] Comparative Example 1: Skin temperature measurement test according to the mixing ratio of peppermint fiber and Tencel

[0076] Skin temperature 33.9℃

[0077] Classification (Tencel : Peppermint) Comparison Example 1 Example 1 Example 2 Example 3 Example 4 Example 5 100 : 0 90 : 10 70 : 30 50 : 50 30 : 70 10 : 90 Before impregnation 33.1 32.8 30.5 30.329.428.1

[0078] Comparative Example 2: Table 2 verified the performance according to the injector water pressure based on the mixing ratio obtained in Comparative Example 1.

[0079] Tencel & Peppermint (7:3) Sprayer Position Water Pressure Thickness (mm) Air Permeability (ft) 3 / ft 2 / s)Tensile Strength (N / 1.5㎠) Elongation (%) Absorption Rate (sec) MDCDMDCDFront 50 330 236 32.8 41 7.36 36.28 38.55 > 60 Back 80Front 50 280 220 37.8 331.96 30.97 33.21 38 Back 100Front 50 210 157 61.0 43 4.29 28.7 125.39 > 60 Back 120

[0080] Tencel & Peppermint (7:3) Dispenser Position Water Pressure Liquid Retention (g / g) Liquid Absorption (g / g) Moisture Retention Rate (%) Adhesion (mg) Front 50 4.2 45.4 15 4.10 30 1.9 Back 80 Front 50 7.4 57.8 56 6.8 93 52.4 Back 100 Front 50 7.6 48.2 46 5.8 23 21.2 Back 120

[0081] Table 3 above is explained. As the number of the water pressure from the rear sprayer increases, the density of the nonwoven fabric increases. As the density increases, the drapeability (flexibility of the fabric) decreases, which may lead to a reduction in adhesion. Additionally, while higher density increases liquid absorption, liquid retention, and moisture retention rates, the rear sprayer is not set to a strong pressure because high density causes the yarn to absorb water at a slower rate, making it difficult to use in finished toner pad products.

[0082] Modifiable embodiments other than the above embodiments are described.

[0083] While increasing the peppermint fiber content provides superior temperature reduction, if the temperature drops significantly after moisture absorption, it imposes an excessively low temperature on the skin, making it difficult to use as a finished product. Furthermore, although both eco-friendly fibers and peppermint fibers are based on cellulose-based yarns, increasing the peppermint content leads to a decrease in softness, absorbency, and retention. Therefore, the mixing ratio of eco-friendly fibers and peppermint fibers was determined to achieve a content that demonstrates temperature reduction while keeping absorbency and retention within the margin of error compared to 100% conventional eco-friendly fibers.

[0084] Due to the above method for manufacturing a cooling mask pack sheet, the mask pack sheet containing biodegradable peppermint fibers can provide a skin soothing effect by lowering the elevated skin temperature while maintaining the performance of existing sheets, such as adhesion, moisturizing power, and moisture retention, by mixing the temperature reduction effect of the peppermint fibers with general cellulose-based fibers.

Claims

1. In a method for manufacturing a cooling mask pack sheet, A step of preparing a nonwoven fabric comprising biodegradable peppermint fibers and regenerated cellulose; A step of forming the temperature of the prepared nonwoven fabric to 30 to 32℃; A step of forming a first-direction tensile strength of 30 to 35 N / 1.5 cm² and an elongation of 35 to 38%, a second-direction tensile strength of 15 to 20 N / 1.5 cm² perpendicular to the first direction and an elongation of 35 to 40% by varying the water pressure of the nonwoven fabric; and A method for manufacturing a cooling mask pack sheet characterized by including the step of manufacturing with a liquid absorption of 14 to 17 g / g, a liquid retention of 10 to 13 g / g, a moisture retention rate of 55 to 65%, and an adhesion of 300 to 315 mg.

2. In Paragraph 1, A method for manufacturing a cooling mask pack sheet characterized in that the peppermint fiber is made using a peppermint extract manufactured by any one of the following methods: rayon, Tencel, Modal, Lyocell, or Cupro.

3. In Paragraph 1, A method for manufacturing a cooling mask pack sheet, characterized in that the regenerated cellulose fiber is one of cotton, pulp, rayon, Tencel, bamboo, hemp, and silk.

4. In Paragraph 1, A method for manufacturing a cooling mask pack sheet, characterized in that the above nonwoven fabric is composed of 60 to 80% general regenerated cellulose fibers and 20 to 40% biodegradable peppermint fibers.

5. In Paragraph 1, The step of manufacturing with the above adhesion strength of 300 to 315 mg is, A step of mixing 60 to 80% of regenerated cellulose fibers and 20 to 40% of peppermint fibers; A step of forming a first nonwoven sheet by combing and unraveling the mixed first fibers in a first direction; A step of forming a cooling mask pack sheet by high-pressure water flow bonding of the first nonwoven fabric sheet, wherein the front portion is formed with a water immersion diameter of 110 to 120 μm and a pressure of 50 to 60 bar, and the remaining portion is formed with a water immersion diameter of 80 to 100 μm and a pressure of 100 to 130 bar; and A method for manufacturing a cooling mask pack sheet characterized by including the steps of drying and winding the cooling mask pack sheet formed by combining a high-pressure water stream.

6. In Paragraph 1, A method for manufacturing a cooling mask pack sheet characterized in that the above liquid absorption rate, above liquid retention rate, and above moisture retention rate are calculated using the following formula. Absorption = (w2-w1) / w1 w1: Weigh a 3cm x 3cm specimen before water absorption, immerse for 20 minutes, lift the specimen for 30 seconds to remove moisture, and then weigh (w2) Replenishment = (w3-w1) / w1 Measure weight (w3) after pressing a weight onto a wet specimen measuring 3 cm by 3 cm for about 1 minute Moisture retention rate = 100-{(w2-w3)*100 / (w2-w1)} Measure the weight (w1) of a specimen with width and length 10 cm before absorbing water, add water equal to 40 times the weight of the specimen to the specimen and absorb water for 30 minutes (water temperature 37.5℃), lift the specimen for 30 seconds and measure the weight (w2), then dry in a 37.5℃ oven for 20 minutes, and measure the weight after 30 seconds (w3).

7. In Paragraph 1, A method for manufacturing a cooling mask pack sheet characterized by the above nonwoven fabric being composed of 40 to 100 g / ㎡.

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