JP5579220B2 - Non-woven fabric for makeup removal and makeup removal sheet - Google Patents

Description

  The present invention relates to a makeup remover non-woven fabric and a make-up remover sheet, in particular, both of scraping off cosmetics reliably from the skin surface, low irritation that does not damage the skin, and good touch for enhancing the comfort of use. Is realized.

  As one of the means for removing makeup, a means for wiping after applying a cleansing agent to the makeup on the skin surface has become widespread. In this method, a cleansing agent such as a cleansing lotion or cold cream for dissolving and removing the cosmetic oil is blended with makeup on the skin surface, and then wiped off using a makeup remover sheet. Conventionally, sheet materials mainly composed of pulp or cotton have been widely used as makeup removers.

  In addition, instead of a sheet material mainly composed of pulp or cotton, it is 1 mm long for the purpose of efficiently removing dirt and aging skin adhering to the skin, and then applying lotion to moisturize the skin. There is also provided a facial cleanser in which a non-woven fabric including a polygonal cross-section ultrafine fiber forming ultrafine soft blades of approximately 100 to 3000 is impregnated with a lotion containing a moisturizing agent (Patent Document 1). . Furthermore, by arranging ultra-fine fiber layers containing 50% by weight or more of split-type composite fibers on both sides of the hydrophilic fiber layer, it is also easy to clean and wipe off humans that can be used by impregnating or absorbing wet components. An applicable non-woven fabric for wiping is also provided (Patent Document 2).

JP-A-7-2507779 JP 2001-190469 A

  A sheet material mainly composed of pulp or cotton has a poor scraping property of a makeup blended with a cleansing agent, and cannot be sufficiently scraped from the skin. Therefore, it is necessary to repeat wiping, and even if wiping is repeated, cleansing agents and makeup often remain on the skin as a result. If the cleansing agent or makeup remains on the skin, or if it is pressed harder than necessary to supplement the scraping property, the skin will be damaged.

  On the other hand, the face-cleaning cleaner shown in Patent Document 1 imparts a sweeping function by the blade-like portion of the protruding portion of the polygonal cross-section ultrafine fiber, but if the blade-like portion of the protruding portion is only soft, the scraping property is insufficient. When the sweeping function is increased, the skin is damaged by a large number of protrusions of approximately 100 to 3000 in 1 mm length.

  Further, the non-woven fabric for wiping shown in Patent Document 2 is glasses, OA equipment, furniture, glass products such as automobiles, ceramic products, plastic products, metal products, objectives such as sebum, cosmetics, and other contaminated skin. It is used for many purposes such as interpersonal cleaning and wiping, and is not specifically targeted at scraping off makeup that is familiar with cleansing agents. Further, the split type composite fiber contained in the ultrafine fiber layer is 50% or more, and at least one component of the constituent components in the fiber cross section is split into two or more. The makeup blended with the cleansing agent by the split fiber. It doesn't improve the scraping ability of the skin, and it doesn't mean that it feels good.

  The makeup remover sheet is required to have the ability to remove makeup that has been blended with a cleansing agent from the skin, as well as low irritation that does not damage the skin and good touch to enhance comfort. Impregnation and liquid retention properties are also required to impregnate and retain the cleansing agent and makeup that have been scraped off. In order to improve the scraping property, a raw material having high scraping property, for example, a raw material having high hardness, may be used. However, as a makeup removing sheet, damage to the skin is great and it cannot be used. On the other hand, thin and soft raw fibers may be used to achieve a good touch, but the makeup-removing sheet lacks scraping properties like conventional sheet materials mainly made of pulp or cotton.

  Therefore, the present invention solves the problems of the above-described conventional makeup remover nonwoven fabric and makeup remover sheet as a base material for the makeup remover sheet, has sufficient scraping properties as a makeup remover sheet, An object of the present invention is to provide a non-woven fabric for make-up removal and a make-up removal sheet that achieves both low irritation without causing damage to the skin and good touch for enhancing the comfort of use.

  In order to achieve the above object, the present invention is a non-woven fabric for makeup remover having a three-layer structure in which surface layers are arranged on both front and back surfaces of an inner layer, and has a fineness of 0.1 to 0.8 dtex as a raw material fiber for the surface layer. Ultrafine PET fiber and 5-20% by weight of acrylic / acetate split fibers were mixed, and the inner layer and surface layer were entangled by water jet to split the acrylic / acetate split fibers to generate fibrils. Provides non-woven fabric for make-up removal. And, as the raw material fiber of the inner layer, the composition mixed with pulp and rayon, as the raw material fiber of the surface layer, the composition of mixed rayon, the rayon mixed as the raw material fiber of the surface layer and the inner layer, entangled the raw material fiber by water jet A structure that is strong and has improved impregnation properties.

Moreover, the structure which gave the scraping property of cosmetics by the fibril which generate | occur | produced in the surface layer, the structure which gave smoothness to the surface layer by the ultrafine PET fiber mixed as a raw material fiber of the surface layer, and the basic weight of the surface layer per side 5 to 15 g / ^{m 2,} to provide an arrangement in which the basis weight of the inner layer and 20 to 40 g / ^{m 2.} Furthermore, a makeup remover sheet in which the above-described makeup remover nonwoven fabric is formed into a sheet shape, and a makeup remover sheet in which the above-described makeup remover nonwoven fabric is formed into a sheet shape and impregnated with a cleansing liquid are provided.

  According to the non-woven fabric for makeup remover and the makeup remover sheet obtained according to the present invention, the fibrils are separated from the acrylic / acetate split fibers by a water jet because the surface layer is mixed with the split fibers of acrylic acetate as raw material fibers. Occur. This fibril improves the scraping property from the skin surface of the makeup blended with the cleansing agent, and can be wiped off smoothly and reliably, so there is no wiping residue. In addition, since the blending ratio of the acrylic / acetate split fibers for generating fibrils is 5 to 20% by weight, the scraping property can be improved without damaging the skin. Furthermore, since the surface layer is mixed with ultrafine PET fibers with a fineness of 0.1 to 0.8 dtex as raw material fibers, this ultrafine PET fibers enhances low irritation and comfort without causing damage to the skin. You can achieve a good touch.

  On the other hand, adopting a three-layer structure in which surface layers are arranged on both the front and back surfaces of the inner layer, and mixing the pulp and rayon as the raw material fiber of the inner layer, permeate the inner layer with the make-up blended with the wiped cleansing agent, It can be impregnated and held in the gap between the fibers. Furthermore, by mixing the rayon into the raw material fibers of the surface layer, the surface layer and the inner layer are integrated by water jet, and the makeup blended with the cleansing agent wiped from the skin surface is smoothly penetrated from the surface layer to the inner layer. be able to.

Sectional drawing which shows the structure of the nonwoven fabric for makeup removal concerning this invention. The schematic diagram which shows the cross-section of the division | segmentation fiber of an acrylic acetate. Action | operation explanatory drawing of the makeup removal sheet concerning this invention.

  Embodiments of a non-woven fabric for makeup removal and a makeup removal sheet according to the present invention will be described below. FIG. 1 is a cross-sectional view showing the structure of a makeup removing nonwoven fabric 1 according to the present invention. This makeup remover nonwoven fabric 1 becomes a base material for manufacturing a makeup remover sheet for wiping the cleansing agent on the skin surface and then wiping it off. In the figure, the makeup removing nonwoven fabric 1 has a three-layer structure in which surface layers 3 a and 3 b are arranged on both the front and back surfaces of the inner layer 2.

The inner layer 2 is composed of 30 to 60% by weight of pulp 8 (coniferous wood kraft pulp) and 10 to 40% by weight of rayon 9 (fineness 0.4 to 1.1 dtex × fiber length 5 to 10 mm) as raw fibers. The wet papermaking is carried out in an amount of 20 to 40 g / m ² . The inner layer 2 is impregnated with a makeup blended with a cleansing agent after wiping off the skin surface using the non-woven fabric 1 for removing makeup, and impregnated into the gaps 11 between the fibers in the inner layer 2 (see FIG. 3). Has the function of holding.

The surface layers 3a and 3b are 15 to 45% by weight of ultrafine PET fiber 7, 5 to 20% by weight of acrylic acetate split fiber 4, and 10 to 40% by weight of rayon as required. as 9 (fineness 0.4～1.1Dtex × fiber length 5 to 10 mm) of the raw material is wet papermaking basis weight 10 to 30 g / ^{m 2} (per side 5~15g / ^{m 2).} Therefore, the blending ratio of the raw material fibers per one side of the surface layers 3a and 3b is 1/2 of the numerical value. The surface layers 3a and 3b preferably have the same composition in order to improve usability, but the raw material fibers and the basis weight may be changed in the surface layers 3a and 3b.

  As the ultrafine PET fiber 7, a fiber having a fineness of 0.1 to 0.8 dtex × fiber length of 5 to 10 mm is used. By blending the ultrafine PET fibers 7, the surface layers 3a and 3b can be given a touch and smoothness.

  Acrylic-acetate split fibers 4 are beaten split fiber manufactured by a spinning method in which main components polyacrylonitrile and diacetate (cellulose acetate) are blended. FIG. 2 is a schematic diagram showing a cross-sectional structure of the split fiber 4 of acrylic / acetate. In the figure, 5 indicates acetate fiber, 6 indicates acrylic fiber, and it is discontinuous in the acrylic fiber 6 similar to the sea. It has a sea-island structure in which acetate fibers 5 similar to islands are mixed, and the acrylic fibers 6 and the acetate fibers 5 can be divided. Therefore, it is excellent in beating property, and a micro phase separation phenomenon is generated by a beating machine such as a beater or a refiner, and it is easily subdivided at an interface to generate fibrils (stripe-like thin fibers). The thin part of the fibril becomes about 1/1000 denier (fiber diameter 0.3 μm). The acrylic-acetate split fibers 4 are fibers having a fineness of 1.2 to 3.3 dtex × fiber length of 3.6 to 10 mm.

  The mixing ratio of the acrylic / acetate split fibers 4 is 5 to 20% by weight in total of the two layers of the surface layers 3a and 3b. If it is less than 5% by weight, the scraping ability of the acrylic / acetate split fibers 4 cannot be exerted, and if it exceeds 20% by weight, the scraping property is improved but the damage to the skin increases, and the makeup remover. It is because it is not suitable for.

  The rayon 9 to be mixed with the raw material fibers of the surface layers 3a and 3b may use the same fineness as the rayon 9 as the raw material fiber of the inner layer 2 of 0.4 to 1.1 dtex × fiber length of 5 to 10 mm. In addition, what is necessary is just to select fiber length arbitrarily, and there is no limitation in particular. The composition of the raw material fibers of these inner layer 2 and surface layers 3a and 3b is summarized as shown in Table 1.

  Surface layers 3a and 3b, which are similarly wet-made, are overlapped on both the front and back surfaces of inner layer 2 subjected to wet paper making on a paper machine, then fibers in inner layer 2 and surface layers 3a and 3b and inner layer 2 and surface layer are formed by a water jet. The fibers between 3a and 3b are entangled with each other to be integrated. By this water jet, as shown in FIG. 2, the acrylic / acetate split fibers 4 having a sea-island structure are split into acrylic fibers 6 and acetate fibers 5 to generate minute fibrils. These fibrils enhance the scraping ability of makeup that has been blended with cleansing agents on the skin surface.

  The water pressure, nozzle diameter, nozzle pitch, time, and the like in the water jet may be appropriately set according to the degree of entanglement of the raw material fibers to be obtained and the fibril generation.

  In the present invention, rayon 9 is mixed as a raw material fiber for both the inner layer 2 and the surface layers 3a and 3b, so that the rayon is a fiber in the inner layer 2 and the surface layers 3a and 3b, and the inner layer 2 and the surface layers 3a and 3b. In addition to the effect of effectively entanglement of the raw material fibers between them, the impregnation and liquid retention properties of chemicals such as cleansing agents, and makeup blended with the wiped cleansing agent into the gaps 11 between the fibers of the inner layer 2 Can be held effectively.

  Then, a makeup remover sheet is produced in which the makeup remover nonwoven fabric 1 is cut into a predetermined sheet shape and formed into a predetermined size sheet shape. Further, after the makeup removing nonwoven fabric 1 having the above-described configuration is cut into a predetermined sheet shape and formed into a sheet shape, a makeup cleansing sheet is manufactured by impregnating with a predetermined cleansing liquid. Therefore, the non-woven fabric 1 for make-up removal of the present invention can be used as a base paper for both a dry-type make-up sheet not previously impregnated with a cleansing liquid and a wet-type make-up sheet pre-impregnated with a cleansing liquid.

  The makeup removing nonwoven fabric 1 and the makeup removing sheet 1 made from the makeup removing nonwoven fabric 1 have the following characteristics. First, the first feature is that the inner layer 2 has the functions and characteristics required for the makeup removing nonwoven fabric 1 by having a three-layer structure comprising the inner layer 2 and the surface layers 3a and 3b disposed on the front and back surfaces of the inner layer 2. This is because they are shared by the surface layers 3a and 3b. That is, the inner layer 2 has a function of impregnating / holding the gaps 11 between the fibers by infiltrating the makeup blended with the cleansing agent. On the other hand, the surface layers 3a and 3b have a function of improving the scraping property from the skin surface of the makeup blended with the cleansing agent and at the same time realizing good touch and not damaging the skin.

  The second feature is that the inner layer 2 and the surface layers 3a and 3b are entangled with each other by a water jet to improve the scraping property of the surface layers 3a and 3b.・ By generating fibrils from the split fibers of acetate and scraping off the makeup that has become familiar with the cleansing agent from the surface of the skin by using the fibrils, the scraping property is improved, and there is no wiping residue and smooth and reliable wiping can be achieved. This is what I did.

  The third feature is to improve the scraping properties of the surface layers 3a and 3b, and at the same time, to realize the good touch by the ultra-fine PET fiber and the gentleness to the skin that does not damage the skin. It is the realization of both good points. For that purpose, the fiber (acrylic / acetate split fiber) for realizing scraping property and the fiber (extra fine PET fiber, rayon) for realizing good touch are mixed as raw material fibers with the purpose. is there.

  Next, the operation when makeup is removed using a makeup remover sheet 12 of a predetermined size manufactured from the makeup remover nonwoven fabric 1 will be described with reference to FIG. In FIG. 3, the cleansing agent is blended with makeup on the skin surface 13. The cleansing agent is impregnated in the makeup remover sheet 12 in advance or used by impregnating the makeup remover sheet 12 at the time of use. Then, the makeup remover sheet 12 is held with the finger 14 and the makeup 15 that has become familiar with the cleansing agent is wiped off from the skin surface 13. At this time, the makeup 15 blended with the cleansing agent is scraped off by the fibrils of the split fibers 4 of acrylic acetate, penetrates into the inner layer 2 from the surface layers 3a and 3b of the makeup removing sheet 12, and the gap 11 between the inner layers 2 Impregnated and retained. As described above, the fibrils of the split fibers 4 of acrylic / acetate improve the scraping property of the makeup 15 blended with the cleansing agent, and can be surely scraped off.

  Further, the blending ratio of the acrylic / acetate split fibers 4 as the raw fibers in the surface layers 3a and 3b is adjusted to 5 to 20% by weight, and the ultrafine PET fibers 7 having a fineness of 0.1 to 0.8 dtex are mixed. Yes. At the time of wiping, since the ultrafine PET fiber 7 is also in contact with the skin surface, the touch is good and there is little irritation to the skin. Therefore, it has both a sufficient scraping property as the makeup remover sheet 12, and it is possible to realize both low irritation that does not damage the skin and good touch for enhancing the feeling of use.

As Example 1, pulp 40% by weight, using a rayon 15% by weight of the raw fibers of fineness 1.1 dtex × fiber length 7 mm, and wet paper making the inner layer 2 a basis weight of 25 g / ^{m 2.} Also, 20% by weight of ultrafine PET fiber having a fineness of 0.6 dtex × 10 mm fiber length, 5% by weight of an acrylic acetate split fiber having a fineness of 1.2 dtex × 6 mm fiber length, and 20% by weight of rayon having a fineness of 1.1 dtex × 7 mm fiber length. The surface layers 3a and 3b having a basis weight of 10 g / m ² were wet-paper-made using ½ each of the raw material fibers. And surface layer 3a, 3b is arrange | positioned on the front and back both surfaces of the inner layer 2, and a raw material fiber is entangled mutually in the inner layer 2, surface layer 3a, 3b and between the inner layer 2, and surface layer 3a, 3b with a water jet. A makeup removing nonwoven fabric 1 was produced.

  As Example 2, except that the blending ratio of ultrafine PET fibers in the surface layers 3a and 3b was changed to 15% by weight, the blending ratio of split fibers of acrylic acetate was changed to 15% by weight, and the blending ratio of rayon was changed to 15% by weight, Using the same raw material as in Example 1, makeup removing nonwoven fabric 1 was produced by the same method.

Example 3, pulp 30% by weight, using a rayon 15% by weight of the raw fibers of fineness 1.1 dtex × fiber length 7 mm, and wet paper making the inner layer 2 a basis weight of 21g / ^{m 2.} Also, 20% by weight of ultrafine PET fiber having a fineness of 0.6 dtex × 10 mm fiber length, 20% by weight of an acrylic acetate split fiber having a fineness of 1.2 dtex × 6 mm fiber length, and 15% by weight of a rayon having a fineness of 1.1 dtex × 7 mm fiber length. The surface layers 3a and 3b each having a basis weight of 12 g / m ² were wet-made using 1/2 of each of the raw material fibers. And surface layer 3a, 3b is arrange | positioned on the front and back both surfaces of the inner layer 2, and a raw material fiber is entangled mutually in the inner layer 2, surface layer 3a, 3b and between the inner layer 2, and surface layer 3a, 3b with a water jet. A makeup removing nonwoven fabric 1 was produced.

As Comparative Example 1, pulp 25% by weight, using a rayon 15% by weight of the raw fibers of fineness 1.1 dtex × fiber length 7 mm, and wet paper making the inner layer 2 a basis weight of 20 g / ^{m 2.} Also, 20% by weight of ultrafine PET fiber with a fineness of 0.6 dtex × 10 mm of fiber length, 25% by weight of acrylic acetate acetate fiber with a fineness of 1.2 dtex × 6 mm of fiber length, and 15% by weight of rayon with a fineness of 1.1 dtex × 7 mm fiber length. The surface layers 3a and 3b each having a basis weight of 15 g / m ² were wet-paper-made using ½ each of the raw material fibers. And surface layer 3a, 3b is arrange | positioned on the front and back both surfaces of the inner layer 2, and a raw material fiber is entangled mutually in the inner layer 2, surface layer 3a, 3b and between the inner layer 2, and surface layer 3a, 3b with a water jet. A makeup removing nonwoven fabric 1 was produced.

  The non-woven fabric for makeup removal 1 of Examples 1 to 3 and Comparative Example 1 was cut into a size of 80 mm × 200 mm to produce a makeup removal sheet. 50 women aged 20 to 50 years using the same foundation to make up the skin to approximately the same thickness, impregnating 5 cc of the same cleansing agent on the makeup remover sheet, Each item of gentleness (hypoallergenicity) and scratching property was evaluated in three stages of ○, Δ, and ×. The results are shown in Table 3.

  According to Example 1, “scratchability” for removing makeup from the skin with a cleansing agent required for a makeup-removing sheet and “skin gentleness (low irritation)” that does not damage the skin. Property) ”and“ feel good ”to enhance the comfort of the user. In Example 3 in which the blending ratio of the acrylic / acetate split fibers was 20% by weight, “kindness to the skin” was lower than Examples 1 and 2, but no tingling feeling was pointed out. On the other hand, in Comparative Example 1 in which the blending ratio of the acrylic / acetate split fibers was increased to 25% by weight, the “scratchability” was good, but the skin was irritated, and the “feel” was also in Example 1. Inferior to ~ 3. Therefore, it is appropriate that the blending ratio of the acrylic / acetate split fibers to improve scraping is up to 20% by weight. Further, a conventional makeup remover sheet made of 100% cotton has little irritation to the skin, but is not sufficiently scratchable and unfavorable to the touch.

  According to the non-woven fabric for makeup remover and the makeup remover sheet obtained according to the present invention, the fibrils are separated from the acrylic / acetate split fibers by a water jet because the surface layer is mixed with the split fibers of acrylic acetate as raw material fibers. Occur. This fibril improves the scraping property from the skin surface of the makeup blended with the cleansing agent, and can be wiped off smoothly and reliably, so there is no wiping residue. In addition, since the blending ratio of the acrylic / acetate split fibers for generating fibrils is 5 to 20% by weight, the scraping property can be improved without damaging the skin. Furthermore, since the surface layer is mixed with ultrafine PET fibers with a fineness of 0.1 to 0.8 dtex as raw material fibers, this ultrafine PET fibers enhances low irritation and comfort without causing damage to the skin. You can achieve a good touch.

  On the other hand, adopting a three-layer structure in which surface layers are arranged on both the front and back surfaces of the inner layer, and mixing the pulp and rayon as the raw material fiber of the inner layer, permeate the inner layer with the make-up blended with the wiped cleansing agent, It can be impregnated and held in the gap between the fibers. Furthermore, by mixing the rayon into the raw material fibers of the surface layer, the surface layer and the inner layer are integrated by water jet, and the makeup blended with the cleansing agent wiped from the skin surface is smoothly penetrated from the surface layer to the inner layer. be able to.

DESCRIPTION OF SYMBOLS 1 ... Nonwoven fabric for makeup removal 2 ... Inner layer 3a, 3b ... Surface layer 4 ... Acrylic acetate acetate split fiber 5 ... Acetate fiber 6 ... Acrylic fiber 7 ... Extra fine PET fiber 8 ... Pulp 9 ... Rayon 11 ... Gap 12 ... Makeup removal sheet 13 ... Skin surface 14 ... Finger 15 ... Makeup blended with cleansing agent

Claims (9)

A non-woven fabric for makeup removal comprising a three-layer structure in which surface layers are arranged on both front and back surfaces of the inner layer,
By mixing ultrafine PET fibers with a fineness of 0.1 to 0.8 dtex and split fibers of acrylic acetate of 5 to 20% by weight as the raw material fibers for the surface layer, the inner layer and the surface layer are entangled by a water jet. A non-woven fabric for makeup remover, characterized in that fibrils are generated by dividing a split fiber of acrylic acetate.   The non-woven fabric for makeup remover according to claim 1, wherein pulp and rayon are mixed as raw material fibers for the inner layer.   The non-woven fabric for makeup remover according to claim 1 or 2, wherein rayon is mixed as a raw material fiber for the surface layer.   The non-woven fabric for makeup remover according to claim 2 or 3, wherein the entanglement of the raw material fibers by the water jet is strengthened and the impregnation property is enhanced by the rayon mixed as the raw material fibers of the surface layer and the inner layer.   The non-woven fabric for makeup remover according to claim 1, 2, 3 or 4, wherein the scraping property of the cosmetic is imparted by fibrils generated in the surface layer.   The non-woven fabric for makeup remover according to claim 1, 2, 3, 4 or 5, wherein the surface layer is smoothed by ultrafine PET fibers mixed as raw material fibers for the surface layer. Per side 5 to 15 g / ^{m 2} basis weight of the surface layer, the inner layer having a basis weight of 20 to 40 g / ^{m 2} and claims 3, 4, 5 or 6, wherein the makeup remover for nonwovens.   A makeup remover sheet comprising the nonwoven fabric for makeup remover according to any one of claims 1 to 7 formed into a sheet shape.   A makeup remover sheet in which the nonwoven fabric for makeup remover according to any one of claims 1 to 7 is formed into a sheet shape and impregnated with a cleansing liquid.

Images