TWI338571B - - Google Patents

Description

IX. INSTRUCTIONS OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The present invention relates to a sheet substrate for impregnating a liquid full sheet. [Prior Art] Rightly, a plurality of wet sheets formed by immersing liquid in a sheet substrate are stacked and stored in a container, and the liquid has a tendency to move downward under the influence of gravity, and sometimes liquid is applied to each sheet. The content varies. Therefore, when a wet sheet is used, liquid properties sometimes cannot be sufficiently exerted. Further, since the content of the liquid Zhao is small, the feeling of use is likely to be lowered. Further, depending on the situation, the liquid stays at the bottom of the container, and the liquid becomes useless. For example, when the wet film system is a sheet of the removed matter, the above-mentioned sheet above the overlapped sheet has poor detergency, and the lower sheet has poor touch. It is disclosed that, in order to superimpose and store a plurality of wet sheets, the melt-blown nonwoven fabric of a polyolefin resin having a basis weight of 〜5 to 2〇〇g/m2 is used. The feature is that the pore having a size of 2 〇 6 6 μm is at least 65% of the pore. A substrate for a wet sheet is disclosed, wherein at least one layer of the sheet is combined with a hydrophilic fiber and contains - The heterogeneous or the same type is formed by superimposing two or more embossed sheets of the embossed shape by a pressing process, so as to have a region between the adjacent embossed sheets, and the embossed sheet A multi-layer structure formed by laminating or fusing, and performing the concavo-convex shaping by the above-described press processing. Among them, in the melt-blown nonwoven fabric using a polyolefin resin, the polyene 103173.doc 1338571 hydrocarbon resin It is hydrophobic, so • liquid ^ ^ w This is (four) line t-weaving water immersion water. . . 仃 仃 hydrophilic treatment, so that manufacturing is more troublesome. Also, according to the manufacturing conditions, melt blown not wax right, . #好, Especially if it will be 笪...! Cloth - in general Sense and eight; the skin is dry, sometimes screwed out <# Applicability is not good. ^才h Zhizhi Shu according to the above-mentioned wet film substrate will be the technology for your household's even if it will be plural In the case of the wet film, it is difficult to produce the movement of the liquid. However, the manufacturer is seeking a substrate sheet for a wet sheet which is more difficult to produce due to the movement of the liquid. [Invention] A system is provided with a pair of outer layers. The fiber sheet body between the outer layers == structure, and the liquid is used for wiping the substrate for the sheet. The average fiber spacing of each outer layer is 3 to 35 ''(4) The average fiber spacing is 25_ Further, the average fiber spacing of each outer layer is larger than that of the inner layer. - [Embodiment] The present invention will be described based on its preferred embodiment. The sheet substrate of the present invention is impregnated with liquid to form a (four) μ The body is 'dry before the liquid is impregnated. The lunar substrate contains a fiber sheet having a three-layer structure of fibrous material. As each layer, various woven fabrics, non-woven fabrics, and the like can be used. Weaving confusing day, considering right It is preferable to use various non-woven fabrics for the retention property or manufacturing expense of the liquid. In the sheet substrate of the present invention, the average fiber (four) (four) of each outer layer is larger than the inner layer. This is the difference in capillary force between the inner layer and the outer layer. The result of the pot is that in the storage of the wet sheet, it is difficult to generate a liquid movement, thereby maintaining a good hand feeling. Considering that it is difficult to generate liquid movement in the storage of the wet sheet, The average fiber spacing of each outer layer is 3 to 35 μm, preferably 3 to 5 to 33 μm, more preferably 4 to 31 μm. If the average fiber pitch is less than 3, the difference from the average fiber spacing of the inner layer cannot be sufficiently imparted. Above 35 pm, it is difficult to cause liquid movement. The average fiber spacing in each outer layer may be the same or may be different. The average fiber spacing was calculated according to the following formula. Average fiber spacing Dpbm) = A_Fd = 1 () _ [TX_J__Fd f In the formula, w represents the basis weight (g/m2), and L represents the thickness (cm). Ct indicates the composition (wt%) of the first fiber, Dti indicates the fiber diameter (dtex) of the second fiber, and Δ indicates the average center pitch (μπι) to indicate the average fiber diameter (μπι). In order to make it difficult to cause the movement of the liquid, in the present invention, the average fiber spacing of the inner layer other than the average fiber spacing of the above layers is 丨 25 25 μm, preferably 2 to 23 μη. Considering that it is difficult to cause liquid movement in the storage of the wet sheet, it is preferable that the average fiber spacing of the outer layer is also larger than the average fiber spacing of the inner layer, specifically, the average fiber spacing of the inner layer is 101 to 1000%'. 120~750%. In addition to the average fiber spacing of the inner and outer layers, the absolute value of the apparent density difference between the outer and inner layers is preferably 0 to 0.32 g/cm3, more preferably 〇~〇.12 g/cm3, and if so, wet. The movement of the liquid in the accumulation of the sheets becomes more difficult to produce. In this case, the apparent density of each outer layer may be greater than the apparent density of the inner layer or, conversely, the apparent density of the inner layer may be greater than the apparent density of the outer layer. The apparent density was measured in the following manner. The layers before the lamination-body formation were cut out by the size of 〇 〇 mm 10 G mm, and the weight was measured, and the basis weight was calculated by converting it to a weight of 1 m. Further, the thickness of each layer cut out was measured under a load of 2 〇 g cm. The apparent density was determined by dividing the obtained basis weight by the thickness.

Preferably, the difference between the apparent density of the outer layer and the inner layer is as described above, and the apparent density of each layer is as follows. Regarding the outer layer, the apparent density is preferably from 0.04 to 0.50 g/c, and particularly preferably from 〇〇5 to 〇21. In this case, the apparent density of the two outer layers may be the same or may not be $. On the other hand, regarding the inner layer, the apparent density is g/em3, and particularly preferably 0.08 to 0.18 gW. In particular, the apparent density of each outer layer is smaller than the apparent appearance of the inner layer, thereby suppressing the movement of the liquid in the inner layer, and at the same time, it can be made into a soft substrate which is softened by a large volume, so that it is good.

Since the liquid diffusing property of the sheet substrate of the present invention is enhanced, the orientation is preferably from 2.5 to 4.0. By making it 2.5 or more, the diffusibility of the liquid becomes good, and by making it 4 or less, it becomes easy to manufacture. The term "orientation" as used herein refers to the orientation of a molecule, which can be measured, for example, by Oji Scientific Instruments Co., Ltd. Α-2001. The sheet substrate of the present invention is impregnated with 400% of liquid, and has a liquid sustained release rate of 28% or more in a state of applying 5 g/cm 2 of weight for 1 , second, but can be used from a sheet substrate. Slow release of a sufficient amount of liquid is preferred in terms of improved stain removal performance. The liquid slowly released from the sheet is absorbed into the sheet base material after it is dissolved in the skin or cosmetic dirt, and is removed from the skin, thereby removing dirt from the skin. I03173.doc 1338571 The measurement condition of the sustained release rate is set to a state in which a load of 5 g/cm 2 is applied for 1 〇 second. The reason is that the load and time are substantially the same as when the person wipes the skin dry. The sustained release rate was determined by the following method: The weight a of the sheet substrate adjusted to a size of 50 mm x 200 mm was measured, and the liquid β which was impregnated to 4 times the weight of the weight A was set to B after the impregnation. Wrap all the liquid-impregnated sheet substrate with knntowel (trade name; manufactured by Crecia Co., Ltd.). Then, on the sheet substrate wrapped with kimt〇wel • Place a pressure of 1〇〇mmX100 mm The force plate 'loaded the weight in such a manner that a total of 5 gram of weight was loaded thereon. After 1 sec., the weight and the acrylic sheet were removed, and then the weight c of the sheet substrate was measured, and the sustained release rate was calculated according to the following formula. Sustained release rate (%) = (BC) / Ax 1 As described above, it is preferred that both the outer layer and the inner layer are composed of non-woven fabric.

In view of the downward movement of the liquid, it is preferable that the inner layer contains 30% 〇/0 or more of hydrophobicity. Especially good county - „ gossip, the inner layer 1 〇〇% is composed of hydrophobic fibers. It is better that the inner layer contains dazzle spray non-woven fabric, spunbond non-woven fabric, warp and latitude straight, non-woven fabric, spunlace non-woven fabric, etc. As a warp and weft straight non-woven fabric, It is better to use MILIFE (trade name: Nippon Platinum P1 last〇 Co., Ltd. (Nisseki plast〇

Co., Ltd.)) has only vertical or vertical and horizontal <non-woven. If the inner layer contains a melt blown nonwoven fabric, the inner layer hinders the liquid from moving downward and the effect as a barrier layer becomes large, which is particularly preferable. This is because the 亘松 a, '" smelting non-woven fabric is composed of very fine fibers. The average fiber spacing is shorter, so that the _ Λ Λ gt 而 而 而 毛细管 毛细管 毛细管 毛细管 毛细管 毛细管 毛细管 毛细管 毛细管 毛细管 毛细管 毛细管 毛细管 毛细管 毛细管 毛细管 毛细管 毛细管 毛细管 毛细管 毛细管 毛细管 毛细管 毛细管 毛细管 毛细管 毛细管 毛细管★t fruit is also related to the basis weight of the melt-blown non-woven fabric. If the basis weight is too small, it will not be able to fully dry the liquid, so the liquid has a tendency to move downwards 103173.doc 1338571. On the other hand, if the basis weight is too high In addition, the liquid retaining ability is sufficient, but the feeling of use of the wet sheet is lowered. The sheet substrate of the present invention is used for a wet sheet for body dryness, and thus is used in the required characteristics of the product. It is an important item. If you consider this, the basis weight of the melt-blown non-woven fabric used as the inner layer is preferably 6〇g/m2, especially preferably 2~40 g/m2. Value, and the value of the apparent density previously described

The relationship, as the thickness of the melt-blown non-woven fabric used for the inner layer, is preferably 〇·〇2~0.30 _, especially preferably 〇.〇3~〇.25 _. As the fiber constituting the melt-blown nonwoven fabric used as the inner layer, fibers of various thermoplastic resins can be used. In the case where the fiber is originally hydrophobic, it is preferred to carry out various hydrophilization treatments to make it hydrophilic. It is non-woven and has the characteristics of extremely fine fibers. The residual cloth used in the present invention, the fineness thereof

It is preferable that d._〜〇"dtex, especially the 〇 side~ please tdex, so that it is easy to control the average fiber pitch of the inner layer within the range described above. On the other hand, as the non-woven fabric constituting the outer layer, for example, a wet type: a punctured non-woven fabric, a dry spunlace non-woven fabric, an air-laid non-woven fabric, a hot air non-woven fabric, a non-woven fabric, a spunbonded nonwoven fabric, or the like can be used. The wet spunlace nonwoven fabric or the dry spunlace nonwoven fabric is used in terms of the liquid immersion performance 1 retention property, hand feeling, and the like. Distance:, 1 Bu! It is composed of spunlace non-woven fabric (4), and it is appropriate to control the fiber spacing. The AUU,, - ', ' type, or the water pressure when the fabric is ordered to be interlaced. In the case of a rod machine, for example, if the water pressure is increased, the pitch is reduced. On the contrary, if the water pressure is reduced by 103173.doc 8 1338571, the fiber pitch tends to become larger. In the outer layer of the average fiber spacing, the water pressure of the water flow interlacing also depends on the basis weight of the fabric, and generally, it is preferably 3 to 35 MPa, particularly preferably 10 to 30 MPa. It may be divided into several times depending on the purpose. Water flow interweaving. Water pressure can be applied from the surface or inside of the fabric, or water pressure can be applied from both sides... The water pressure can be adjusted to several stages in several stages. At this time, if the maximum water pressure is changed to the above water pressure, the water pressure is adjusted. Alternatively, if necessary, it may be pressurized by a pressure roller after being interlaced with water, or dried after being interlaced with water, and then pressurized. As a pressing condition, it is preferably a line pressure. (9) kg/cm, It is preferably from 1 to 5 〇 kg/cm. In the spunlace nonwoven fabric constituting each outer layer, it is preferred to contain 55 wt% or more of hydrophilic fibers, more preferably 65 wt% or more of hydrophilic fibers, and thus better. It is composed of more than 75% by weight of hydrophilic fibers. Of course, the outer layer may also be composed of 100% hydrophilic fibers. The orientation of the fibers in each outer layer may be the same or different. • As a hydrophilic fiber, it may be used as it is. The hydrophilic fiber and the fiber which is hydrophilic without being hydrophilic, and which is hydrophilic by the hydrophilization treatment. Examples of the fiber which is inherently hydrophilic may be cotton, natural fiber, or pulp or rayon. Acrylic resin, copper alloy, TENCEL, LYOCEL, etc. As a fiber which is not hydrophilic but is hydrophilic by hydrophilic treatment, for example, a polyolefin resin or a polyester resin is used. The fiber of the hydrophobic resin such as a resin is subjected to a hydrophilization treatment fiber. Among these fibers, the texture is good, and it is preferable to use cotton or rayon. Dilute acid resin, Tencel 103173.doc • 12- 1338571 Hydrophilic fiber (TENCEL), LYOCEL, especially preferably, one type of cotton may be used, or two or more types may be used in combination. As the hydrophilic fiber, in addition to the above-mentioned cotton fiber In addition, in order to increase the bulkability, a potential crimped fiber may be blended. As the potential crimped fiber, a core-sheath structure or a eccentric structure or a parallel structure of fibers containing polyethylene, polypropylene, or polyester may be used. It can improve various characteristics of the outer layer.

The hydrophilic fiber used in the outer layer preferably has a fineness of 〇 2 to 5.5 dtex, more preferably 0.8 to 4.4 dtex, and further preferably 丨 3 to 3 3 d (10). If fibers in this range are used, it is easy to appropriately control the previously described fiber spacing. In the case where two or more kinds of hydrophilic fibers are used, it is preferred that the fineness of at least one of the hydrophilic fibers is within the above range. It is especially preferred that the fineness of all hydrophilic fibers is within the above range.

In the case where cotton is used as the natural fiber, the cross-sectional shape thereof is not a perfect circle, and therefore, in the case where the aspect ratio of the face is calculated to be 3, it is preferably within the above-mentioned thickness. When the fiber of the fiber diameter of this range is used, it is easy to appropriately control the fiber bath of the above-mentioned fiber using two or more kinds of hydrophilic fibers, and it is preferable that the thickness of at least one hydrophilic fiber is in the above range. Inside. More preferably, the thickness of all hydrophilic fibers is within the above range. When the cotton is a hydrophilic fiber, the fiber of the Micronaire is preferably 2.5 to 6 〇, more preferably 3 to 4 4 , and the feeling is also good. The fiber length of the hydrophilic fiber is not particularly limited, but it is preferably 5 to 70 mm in terms of touch and productivity in use. In terms of touch or softness, the basis weight of each outer layer is preferably from 10 to 100 103 173.doc U38571 g/m 2 ' particularly preferably from 20 to 50 g/m 2 . The relationship between the apparent density values described above, each mm, particularly preferably 〇.] 〇~0, 50 mm may be the same 'or different.

The outer layers and inner layers can be made to be formed by various methods. Examples of the method of the crystallization include heat fusion using a heat flower, adhesion using a paste, and fiber interlacing using a water flow. In the case where the inner layer contains a solvent spray; the outer layer contains a spunlace non-woven fabric, a layer is deposited on one side of the smelting non-woven fabric, and a high-pressure water stream is sprayed from above, thereby causing the constituent fibers of the fabric and the constituent fibers and It is simple and economical to obtain the fiber substrate by the fiber interlacing between the constituent fibers of the non-woven fabric, and then to perform the same treatment on the other side of the non-woven fabric.

According to the above-mentioned basis weight value and the thickness of the first outer layer, it is preferably 〇 〇 5 〇 6 〇 . The basis weight of each outer layer and the thickness of the substrate are also dependent on the basis weight, and the thickness thereof is preferably 〇22~12〇_, more preferably G.24~l.GG mm, and the good one is 〇.26 ~G 8 licking legs. Further, the basis weight of the sheet substrate is preferably from 2 〇 to 5 〇 g/m 2 , particularly preferably from 50 to 100 g/W. If the thickness and basis weight are within this range, the liquid retention performance can be improved in a chargeable manner. The basis weight is cut by 10. The weight of the sheet substrate of mmxlOG mm size was measured and converted into a weight of 1 m2. The thickness was measured by cutting out a sheet substrate having a size of 1 mm x 100 mm in a weight of gf/cm 2 . The saturated liquid amount of the sheet substrate is preferably from 50 to 1 '000 / Torr per unit weight, particularly preferably from 1 〇〇 to 6 % by weight. This allows a sufficient amount of liquid to be retained. The amount of saturated liquid depends on the space formed by the fibers constituting the sheet substrate and the material of the fibers themselves. Therefore, it is not only necessary to increase the retention property of the liquid if the thickness of the sheet base 103173.doc 14 1338571 is thinned, and the amount of saturated liquid must be considered in order to improve the performance. The amount of saturated liquid can be determined by cutting out a sheet substrate of a size of mm x 100 mm. The sheet substrate was immersed in ion-exchanged water for 15 minutes or more, and after taking out, the liquid was dropped for one minute or more, the weight was measured, and the difference in weight before and after immersion was calculated. In the sheet substrate of the present invention, in order to retain various liquids for immersion, in addition to containing 55 parts by weight or more of hydrophilic fibers, it is preferred that the space φ gap ratio shown by the following formula is 70~ particularly preferably 85% to 99%. By setting the void ratio to 70% or more, the liquid can be sufficiently retained, and by making it 99% or less, productivity can be improved. Void ratio (%) = (ρ - ρ|) / ρ χ 1 〇〇 where Ρ represents the specific gravity of the sheet, and ρ' represents the apparent specific gravity of the sheet. A wet sheet is formed by impregnating various liquids in the sheet substrate of the present invention. The type of liquid to be impregnated can be selected according to the specific use of the wet sheet. For example, when the wet sheet is used as a remover sheet, it can be used as a liquid, and an aqueous solution containing a surfactant, a 〇/W emulsified emulsion, a W/0 emulsified emulsion, and an oil condensate can be used. Glue, cream, oil. Particularly preferred is an aqueous solution containing a nonionic surfactant and glycerin, and further preferably, the nonionic surfactant is a polyethylene glycol monolaurate. For the purpose of washing water-based and oil-based cosmetics having high skin adhesion such as mascara, it is preferred to contain 0.01 to 0.5% by mass of a water-based tackifier, and 5 to 3 % by weight of a boiling point of 160 to 300 ° C. The oil agent and the water/tear emulsion type emulsion are preferably the above oil agent having a boiling point of 160 to 3 Torr of its isoparaffin/w emulsion emulsion 6 as an isoalkane, and the product Marca s〇]e can be used. R (Maruzen Petrochemical Co. Ltd.) or ip SOLVENT 1620, 2028 (ldemitsu Petrochemical Co., Ltd.), etc. The amount of liquid impregnation in the medium depends on the specific use of the wet sheet. 'It is preferably 00~600% of the average unit weight of the sheet, especially 200~450%. And the liquid viscosity is better. Ok! ~] 〇〇〇〇〇〇mPa, s 'If considering the coating properties, it is better 1 to 70,000 mpa.s.

The wet sheet obtained in this manner can suppress the movement of the liquid even if the plurality of sheets are overlapped and stored. By impregnating the apparent density of the layers in the liquid wet sheet, although the apparent density of each layer in the sheet substrate before impregnation of the liquid is different, the two densities are not significantly different. Further, the fiber pitch of each layer of the wet sheet body is not as large as the fiber pitch of each layer in the sheet base material before the liquid is impregnated. Therefore, the movement of the liquid in the strict sheet is suppressed. 0 The wet sheet having the sheet substrate of the present invention is used for dry wiping of the body.

Sheet. For example, it is suitable for use as a remover sheet, an antiperspirant sheet, a baby wipe, and the like. EXAMPLES Hereinafter, the present invention will be described in more detail based on examples. However, the scope of the present invention is not limited to the related examples. As long as it is not specifically limited, Bellow " refers to "weight❶/. |,. ° [Example 1] 100 was used, respectively. /. Cotton fiber, 100% artificial 八k, 糸 fiber, 100% cotton} fiber is used as a raw material, and a card structure of three layers is made by three cards. 103173.doc. From the top of the mouth, Gua 'smart water' is used to interlace the fibers between the constituent fibers of the card-shaped fabric. Thereby, a sheet substrate having a three-layer structure was obtained. The average fiber spacing in each of the outer layers was 19" (four)' apparent density of 0.177 g/cm3. The denier of cotton fiber is equivalent to ...ln, and the field is 1.7 dtex. The basis weight is 19 7 g/m2 and the thickness is 0 · 11 mm. The sheet substrate obtained in this manner was impregnated with the washing liquid shown in the following Formula 1, to obtain a wet sheet. The washing rate of the washing liquid was 38%. [Example 2] A sheet substrate was obtained in the same manner as in Example 1 except that the inner layer containing the polypropylene (four) spray nonwoven fabric was used instead of the inner layer containing the rayon fibers. The sheet substrate obtained in this manner was immersed in the washing liquid shown in the following formula to obtain a wet sheet. The washing rate of the washing liquid was 38%. [Example 3] A sheet substrate was obtained in the same manner as in Example 2 except that the inner layer was a warp and weft orthogonal nonwoven fabric of 100% PET. The sheet substrate obtained in this manner was impregnated with the washing liquid shown in the following Formula 2 to obtain a wet sheet. The washing rate of the washing liquid was 380%. [Table 1] Prescription 1 Ingredient 1 PEMULEN TR-2-^l 0.05% by weight Component 2 SPS^2 0.1% by weight Component 3 IP SOLVENT162 (^3 15% by weight Component 4 48% KOH 0.023% by weight Component 5 Refined water 84.827 weight % 103173 doc 1338571 Acrylic acid alkyl methacrylate copolymer BF manufactured by Goodrich Co., Ltd. *2 Ethyl cellulose-propyl stearyl ether hydroxypropyl sodium citrate (Japanese Patent Laid-Open No. 9-23 5301) ※3 Low-boiling isoparaffin (boiling point! 66~2〇2〇c) Manufactured by Idemitsu Petrochemical Co., Ltd. [Table 2] Prescription 2 Ingredient 1 Polyglycol monolaurate (n=12) HLB14 1 0% by weight Component 2 Glycerol 10% by weight Component 3 Refined water 80% by weight [Comparative Example 1]

A sheet substrate was obtained in the same manner as in Example 1 except that the inner layer was 100% PET fiber (denier of 1.6 dtex). The sheet substrate obtained in this manner was immersed in the cleaning liquid shown in Formula 2 to obtain a wet sheet. The immersion rate of the cleaning solution was 380%. [Comparative Example 2] A sheet substrate was obtained in the same manner as in Example 1 except that the inner layer was 100% rayon fiber (denier of 3 · 3 d t e X ). The sheet substrate obtained in the manner described above was impregnated with the washing liquid shown in Formula 1, to obtain a wet sheet. The washing rate of the washing liquid was 380%. [Performance Evaluation] With respect to the obtained five kinds of sheet base materials, the difference in the impregnation rate before and after the storage, the touch, and the detergency were evaluated by the following methods. These results are shown in the following list 103173.doc -18- 8 1338571 3. [Difference between impregnation rates before and after storage] The main substrate is 75 _x wide and the size of the substrate is taken out, and the old prescription 1 or the prescription 2 is washed (4). Make the impregnation rate a complete weight. Will be 5 〇. The wet sheet obtained in this way is sealed into a pillow bag and stored underneath! Months. After storage, put it until it returns to room temperature. The wet sheet was taken out from the bag, and the second sheet and the immersion rate of the 49 sheets from φ were measured. Calculate the difference between the two and use the value as the difference between the upper and lower immersion rates. Further, the difference between the second and the 49th sheets before and after the storage was calculated separately. Furthermore, the bottom sheet and the top sheet =, I am afraid that it is affected by the pillow bag, so it is not used as the measurement object. The dip/shell rate was measured by measuring the weight of each wet sheet after measuring the weight of the sheet which was washed with a lotion and washed with steaming water and dried. Immersion rate (%) = (wet sheet weight - dry sheet weight) χ 1 〇〇 / dry sheet _ body weight evaluation standard • About the second and 49th sheets ◎: relative to the preparation immediately after preparation The impregnation rate's difference in the rate of impregnation after storage is within 25% of the soil. 差: The difference as described above is within 40% of the soil. △: The difference as described above is within 60% of the X. X: The difference is greater than ±60 as described above. 〇/〇•About the difference between the immersion rate of the 2nd and 49th sheets after storage ◎: Within 25% of the soil 103173.doc 8 1338571 〇: Within 40〇/〇 △: Within 60% X: More than ±60% [Tactile sensation] The face was wiped with a wet sheet in a commentator of 10 people, and the skin feel was evaluated for this. evaluation standard

◎ : 8 or more of 10 people answered that they felt good. 〇: 6 to 7 of 10 people answered that they felt good. △ : 4 to 5 out of 10 people answered that the touch was good. X ·· 3 out of 10 people answered that the touch is good [Detergency] In the evaluation of the detergency, it is used in general cosmetic soils, and the most stubborn dirt is oily mascara and lipstick stains. Kind. [/ Evaluation of dirt removal by sexual mascara]

〇.0045 g oily mascara (trade name: KOSE Sports Beauty _ Powerstay Mascara (curl l〇ng) BK001, manufactured by KOSE Co., Ltd.) was evenly applied to a glass slide with a diameter of 12 (10) and placed in a Η 丄Dry to obtain model soil. Each of the wet sheets was wiped with a model stain - 'L5 seconds and then with a constant pressure (10)_2), and the number of rubs required to completely remove the model soil was measured. Evaluation criteria: ◎ : 5 times or less 〇 ^ times or more, 10 times or less I03173.doc • 20 8 1338571 △ : Π times or more, 1 5 times or less X : 1 6 times or more [Evaluation of lipstick stain removal] 〇. 〇 2 g lipstick (trade name: AUBE lipstick RS 151 Kao Co., Ltd.) was applied to the inside of the lower wrist to make a circle, and the color difference measurement (E1) was performed. After allowing to stand for 30 minutes, the wet sheet of each of the examples and the comparative examples was used, and the wiping operation was performed five times. After the wiping, the color difference measurement (E2) was performed again. The washing rate is calculated according to the following formula. A Min-ha color difference meter CR-300 (manufactured by Minolta Camera Co., Ltd.) was used for the measurement of the color difference. Evaluation is based on the following criteria. Washing rate (%) = (1·Ε2/Ε1) χ1〇〇 Evaluation criteria ◎: Washing rate is 80% or more 洗: Washing rate is 70% or more, less than 80〇/〇 △: Washing rate is 50 °/. The above is less than 70%. X: The cleaning rate is less than 50%. [Comprehensive evaluation] According to the following criteria, the difference between the impregnation rate before and after the storage of the second sheet, and the difference between the impregnation rate before and after the storage of the 49th sheet, and the second The five items of the difference between the film and the 49th film, the touch, and the detergency were evaluated. Evaluation criteria ◎ : ◎ is 3 or more 〇 : ◎ is 2 Δ : ◎ is 1 103173.doc 8 1338571 χ : ◎ is ο [Table 3]

103173.doc -22. 8 1338571 As shown by the results in Table 3, it can be concluded that the wet sheet of each of the sheet substrates of the examples was used, and the comparative example was used! Compared with the wet sheet of the sheet substrate of 2, the difference between the impregnation amounts of the second sheet and the 49th sheet of the rut is small, so that the liquid movement is suppressed. Further, it can be judged that the wet sheet using the sheet substrate of each of the examples has a good touch and is excellent in detergency [Industrial Applicability] The sheet substrate of the present invention is used right, and the touch is felt. It is good, and even if the liquid φ is immersed and the plurality of sheets are stored in the laminated state, the movement of the liquid is reduced. Therefore, the performance of the impregnated liquid can be sufficiently exerted, and an appropriate amount of liquid can be released from the sheet, so that the body washability becomes good.

103I73.doc •23- 8

Claims (1)

Patent application: A wet-sheet suspension substrate comprising a fiber sheet having a 3-layer structure with an outer layer and an inner layer between the outer layers of 5 kel, and impregnating the liquid for body drying The wipe is characterized by an average of the outer layers 〜, the inner layer average fiber spacing is 〜, and each outer layer = fiber spacing is greater than the inner layer. - 2: The sheet substrate of the requester, wherein the average fiber spacing of the outer layers is 101 to 1000% of the average fiber spacing. 3, such as the request item! The sheet substrate, wherein the inner layer fiber sheet contains 3% by weight or more of hydrophobic fibers. For example, the sheet substrate of Yong-Yuan 1, wherein the inner layer contains dazzling non-woven fabric. The sheet substrate of claim 1, the aqueous fiber. Wherein the outer layer comprises more than 55% by weight of the prosthesis, wherein the outer layer comprises as the hydrophilic fibrous body, the cotton fiber of the sheet substrate of claim 1 of claim 1 is attached to the sheet substrate of claim 1. 7, a kind of body dryness made with impregnated liquid in wet sheets «03173.doc