JP2001145517A - Oil absorbing tissue - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an oil absorbing tissue for makeup with excellent flexibility and good feeling to the skin. SOLUTION: When a crepe-treated sheet is treated to provide high density and a highly smooth surface by means of a super calender and the like, by treating it so as to leave the crepes partly and latently, a sheet with no apparent trace of the crepe treatment, with high smoothness, flexibility and good touch of the skin, with suitability for wiping and with fat absorbing properties and water absorbing properties being the same as or higher than conventional oil absorbing tissues, is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cosmetic fat-absorbing paper having a sweat-absorbing function used for wiping sweat as well as sebum secreted on the skin surface. The present invention relates to a cosmetic grease-absorbing paper which is more flexible, easily conforms to the skin, and can be wiped off like a tissue.

[0002]

2. Description of the Related Art There are many sebaceous glands secreted by sebum in the skin of a human face. In general, a woman of about 20 years old has a forehead of 0.6 to 1.0 g / m ² per 2 hours. It is said that a certain amount of sebum is secreted. Due to this sebum, the makeup face becomes partially greasy and the makeup paste becomes poor. It is said that the secretion of sebum is particularly active between the nose, cheeks, forehead, and eyebrows, so that it can be used to remove sebum in greasy areas and to improve the makeup effect, especially when redressing without washing the face. In addition, the sebum that has emerged is pressed lightly with thin oil-absorbing paper to absorb it.

Conventionally, papers made from vegetable fibers have been used for such applications, and many of the commercially available fat-removing papers are colored or white tissue paper having a basis weight of 15 to 30 g / m ² , As a raw material, in addition to wood pulp, non-wood pulp such as Manila hemp, synthetic fiber such as polyethylene, and the like are used. In addition, for the purpose of increasing the oil-absorbing property of paper, increasing the feeling of removing sebum, and imparting flexibility, high-density treatment such as talc or calcium carbonate blended with inorganic fillers, supercalendering, etc. There are things that are given.

However, commercially available high-density, high-smooth cosmetic fat-absorbing paper has a good appearance of removing sebum, but the paper is firm and hard, and the paper is tightened due to the high density. Due to the crisp feel, the paper breaks or tears at the curved part or the depressed part such as the side of the nostril, and the so-called fit is poor, and the amount of sebum absorbed is small because there are few pores that absorb sebum. Has been pointed out.

[0005] Degreasing films made of polyolefin or the like are commercially available as having good flexibility. However, they have good fit and sebum removal, but they are made of hydrophobic raw materials and have less water-absorbing voids than paper, so their water absorption is less than half that of paper, and there is also a problem in disposal. There is.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to provide a grease-removing paper having excellent flexibility and good fit to the skin.

In general, paper is fed in the running direction of the paper machine (vertical direction = M
The fibers are oriented in D) and the flexibility of the paper is M
In the case of D, the paper is bent at a right angle to the fiber, and the flexibility is deteriorated as compared with the width direction (lateral direction = CD) of the paper machine which is bent along the fiber. The conventional fat-removed papers also have inferior flexibility in the MD direction, giving the sheet a hard feeling as a whole. Therefore, the present inventors have focused on a crepe paper having excellent flexibility in the MD direction while studying a method of obtaining flexibility in the MD direction.

[0008] The crepe paper is finely folded perpendicular to the MD direction of the paper by a creping drum or the like and forms creasing wrinkles, so that it has excellent flexibility in the MD direction. Examples of the creped paper include tissue paper, wiping paper, paper towel, and the like (hereinafter, also referred to as “crepe paper”).

[0009] However, crepe paper cannot be used as a grease removing paper because the unevenness of the crepe is large and the crepe is uncomfortable, and the contact area with the skin is small. Therefore, a method for making use of the flexibility and liquid absorbing properties of these crepe papers, and further improving the fat removal suitability such as the feel of the skin and the appearance of sebum so as to be able to be used as a fat removal paper was intensively studied.

[0010] In other words, the present invention provides an easy-to-use grease-absorbing paper which has a good touch and a high flexibility of fitting to the skin, has a high sebum absorption and removal feeling, and has a suitable sweat wiping property. Aim. Further, there is provided a cosmetic fat removing paper which can be used as tissue paper when removing sweat and makeup, and as fat removing paper when removing sebum. In particular, the present invention provides a grease-absorbing paper for cosmetics that is adapted to the skin at a depressed portion such as a nostril or a region between eyebrows, and has a suitable wiping property.

[0011]

It has been known from experience that when a paper-made sheet is crushed and crushed, its flexibility is increased, and instantaneous oil absorption and water absorption are increased. However, when used as fat removing paper, the contact area with the skin becomes small as described above, and sebum cannot be sufficiently removed. It is excellent in oil absorption and water absorption due to uniform contact with the skin, and the better the feeling of fit, that is, the feeling of use as a fat removing paper, the better the surface smoothness. Therefore, the present inventors, when performing a high-density treatment and surface high smoothing treatment using a pre-creped sheet using a super calendar or the like, by processing to the extent that crepe potentially partially remains,
A sheet that does not appear to be creped in appearance, exhibits high smoothness and soft touch, and is suitable for wiping, and has the same or higher oil absorbency and water absorbency as conventional greased paper is obtained. And completed the present invention. Therefore, the sheet of the present invention potentially has a considerably high elongation in the MD direction since a crepe remains, and a sheet having an elongation of 7% or more is obtained.

In order to achieve the above object, according to the first aspect of the present invention, a creped sheet (hereinafter also referred to as “crepe paper”) is subjected to a high-density treatment and a surface smoothening treatment. A cosmetic fat release paper is provided.

The creped sheet is manufactured using a paper machine. The papermaking fibers include wood pulp fibers of softwood pulp and hardwood pulp, bast fibers such as manila hemp, flax, jute, sisal, kenaf, ganpi, kozo, banana fibers or mitsumata, cotton fibers such as cotton and cotton linter, and others. Plant fibers such as straw, bamboo, espart, and bagasse are used. Manila hemp in particular, absorbs sebum,
It has been used favorably for conventional fat-removing paper because of its availability and supply. In addition, a polyolefin synthetic pulp or a synthetic fiber may be blended if necessary. As an easily available polyolefin synthetic pulp, "SWP" (manufactured by Mitsui Petrochemical Co., Ltd.) can be mentioned.
Synthetic pulp has high lipophilicity and heat-bonding properties. Although synthetic pulp has enhanced flexibility and lipophilicity, it has a problem in hydrophilicity, so it is used in consideration of the type and blending ratio. In the case of crepe paper, waste paper pulp is preferably used in terms of flexibility and environmental issues. However, since there is a problem in strength, it is used in consideration of the mixing ratio.

Next, if necessary, an inorganic filler can be added to the pulp raw material. As the inorganic filler, it is possible to use an inorganic filler excellent in oil absorbency, which is effective for enhancing the oil absorbency of the cosmetic fat removing paper. For example, clay, talc, kaolin, and the like, which are inexpensive and effective for imparting chemical resistance and smoothness, can be used. In addition, high whiteness, calcium carbonate effective to impart opacity,
Titanium oxide, white carbon, or the like can be used. These inorganic fillers fill the interstices between the fibers, giving the paper opacity, increasing the density of the paper and smoothing the paper surface. As a result, the sebum absorbency is improved, and the paper has the effect of softening. As the addition amount of the inorganic filler,
With respect to 100 parts by mass of the pulp raw material of the components, the pulp is blended in an amount of 5 to 50 parts by mass, preferably 10 to 30 parts to prepare a crepe paper stock. Plastic pigments can likewise be used as organic fillers.

In order to increase the water resistance of the sheet,
Polyamide polyamine epichlorohydrin resin, urea
Internal addition or coating of a wet paper strength improver such as melamine resin, a dry paper strength improver such as cationic starch or sodium polyacrylate, or a softener such as glycerin or polyethylene glycol, or a moisturizer to enhance paper strength It is also possible to apply by a method, or to color with a dye, a pigment or the like. Usually, a polyamide polyamine epichlorohydrin resin is added to creped tissue paper or wiping paper to increase the water resistance. It is also preferable to color brown, blue, purple, flesh color, pink, and the like from the viewpoint of design, but colored cosmetic grease removing paper is preferable because the feeling of removing sebum is increased. Further, a sheet having a brown surface can be produced by blending unbleached pulp of wood fiber.

[0016] Crepe paper is wet paper on a roll or after drying, a doctor is used to apply wrinkles in the direction perpendicular to the flow direction of the paper to form a wrinkle. It is rich in cushioning, easy to use and feels good, and has been used for industrial materials as well as household paper and decorative articles. This creping process involves creping on a paper machine (on-machine crepe)
And creping the paper as secondary processing (off-machine crepe). On-machine crepe is processed using a doctor on a press roll (wet crepe) and the surface of a dryer (dry crepe).
Relatively fine wrinkles are formed. To further increase flexibility, wet crepe and dry crepe are used in combination. The off-machine crepe is a method in which paper made is once moistened with water and then processed through a roll with a doctor.
Generally, thick paper has rough wrinkles, and thin paper has fine wrinkles.

The basis weight of the crepe paper is preferably 15 to 30 g / m ^2, similarly to commercially available fat-removing paper. If it is lower than 15 g / m ² , workability and useability are deteriorated in terms of strength.
If it is higher than 30 g / m ^{2, the} paper is too thick and too hard for a grease-removing paper, and feels poor. A high basis weight is also not preferable in terms of the appearance of sebum.

A calender, a super calender, or the like can be used in order to make the crepe paper a high-density treatment and a surface smoothing treatment to obtain a cosmetic fat-removing paper. When performing the above processing, the crepe paper is calendered so as not to reduce the elongation in the machine direction (MD), that is, to leave as much crepe of the crepe paper as the base paper. Even if the crepe is potentially left as described above, even if it is calendered, wrinkles are hardly seen in appearance and smoothness is increased. If the crepe is stretched by increasing the web tension during calendering, the greased paper of the present invention cannot be obtained.

When producing the cosmetic fat-removing paper of the present invention, when calendering the crepe paper, the so-called web tension is set as low as possible so that the sheet is inserted between the calender rolls so as not to be pulled as much as possible. Pass. This, as described above, leads to high flexibility in potentially leaving crepes. If the web tension becomes too high and the crepe elongates when the cosmetic fat removing paper of the present invention is made, MD
The elongation in the direction is reduced, the flexibility is deteriorated, and the fit to the skin, that is, the suitability for wiping is reduced. For this purpose, the web tension is controlled so that the elongation of the grease-absorbing paper for cosmetic remains at 7% or more.

According to a second aspect of the present invention, the grease-absorbing paper of the first aspect has a longitudinal elongation of 7% or more.

Since the cosmetic fat-removing paper of the present invention retains a potential crepe, the sheet elongation is very large like the crepe paper. Therefore, when used as a grease-removing paper, the sheet can be stretched and deformed to fit into a depressed portion such as the side of a nostril, and can be fitted. Such a portion can also uniformly remove sebum. However, other commercially available grease-removing papers have a small stretch of the sheet and are inferior in flexibility, so if you try to apply the sheet to such a dent, the sheet will not stretch, bend, and will not fit well enough. I can't take sebum. The present inventors have found that such a fit cannot be obtained unless the elongation of the sheet is 7% or more. The elongation of the sheet is more preferably at least 10%, even more preferably at least 20%.

According to a third aspect of the present invention, there is provided the cosmetic fat removing paper according to the first or second aspect, wherein the surface smoothness is 250 sec. /
The gist is to be at least 10 ml.

[0023] The smoothness of the cosmetic fat removing paper affects the feel and the amount of fat absorbed. If the wrinkles are too large as in the case of crepe paper, the contact area with the skin is small, sebum cannot be sufficiently removed, and there is a feeling of roughness and the feel is poor.
In the cosmetic grease-absorbing paper of the present invention, the unevenness of the crepe paper as the base paper is crushed, so that a smooth feel and a sufficient contact surface can be secured.
/ 10 ml or more is preferable.

According to a fourth aspect of the present invention, the grease-absorbing paper for cosmetics of the first to third aspects is characterized in that the water absorption is 60 g / m ² or more.

The amount of water absorption is measured by the following method and is shown in units of g / m ² . (Water absorption test evaluation method) A cosmetic leasing paper of the present invention cut into a size of 10 cm x 10 cm was used as a sample, immersed in distilled water for 1 minute, taken out and hung for 1 minute to remove excess water on the surface, Samples before and after water absorption were weighed and determined by the following equation. Water absorption (g / m ² ) = basis weight of sample (g / m ² ) × ｛(mass of sample after water absorption (g) −mass of sample before water absorption (g))
質量 Mass (g) of sample before water absorption｝

The purpose of the cosmetic fat removing paper of the present invention is to also have a sweat absorbing function. The film-type fat-removing paper that has begun to appear in recent years has an extremely low water absorption due to its properties. At least 60 for the ability to wipe away sweat
g / m ² of water absorption is required.

According to a fifth aspect of the present invention, in the cosmetic fat removing paper according to the first to fourth aspects, the flexibility of the paper is 4 gf or less in both the vertical and horizontal directions, and the flexibility in the vertical and horizontal directions is added. The gist is that the total flexibility is 6 gf or less.

Here, the flexibility of paper means JAPAN.
TAPPI “Paper Pulp Test Method” No. The sample size was measured in the vertical direction 5
0 mm x 50 mm in the horizontal direction, the clearance was set to 5 mm, and the flexibility measured by one sheet was used. The longitudinal direction and the lateral direction were measured, and they were defined as the longitudinal flexibility and the lateral flexibility, respectively, and the sum of the longitudinal and lateral flexibility was defined as the total flexibility.

The cosmetic fat removing paper of the present invention has been completed because it has been found that calendering as described above results in a highly flexible fat removing paper when subjected to calendering so that crepe is potentially left. Things. When calendering is performed so that crepe is potentially left, flexibility in the MD direction can be obtained which is comparable to crepe paper. In the CD direction, the crepe was crushed by calendering, so that the flexibility was improved as compared with the crepe paper before processing. In other words, the cosmetic fat removing paper of the present invention is far superior to commercially available fat removing paper in overall flexibility, and exhibits superior flexibility to crepe paper which is generally said to be soft. Incidentally, all of the commercially available cellulose-type degreasing papers have a vertical flexibility of 6.3 to 18.8 gf and a horizontal flexibility of 2.3 to 6.9 gf, and the total flexibility of the sum thereof. Sex values ranged from 9.2 to 24.1 gf.

[0030]

EXAMPLES Examples and comparative examples of the present invention will be described below. The physical properties of the sheets of the examples and comparative examples were evaluated as follows. In addition, all the experiments of the following evaluation confirmation were performed in an environment of 20 ° C. and 65% RH. When the physical properties in the machine direction (MD) along the papermaking direction of the paper were measured,
It was set to D, and when the physical property in the transverse direction (CD) of the papermaking direction was measured, it was set to CD.

(1) Basis Weight Measured according to JIS P-8124.

(2) Thickness The thickness was measured according to JIS P-8118.

(3) Density Measured according to JIS P-8118.

(4) Smoothness (Oken type) JAPAN TAPPI No. 5 was measured.

(5) Tensile strength Measured according to JIS P-8113.

(6) Elongation Measured according to JIS P-8132.

(7) Softness, Touch, and Fit The softness, touch, and fit are the results of a sensory test in actual use. The evaluation was particularly good ◎, good ○, not so good △, and poor in texture, for example, rough, etc., was evaluated as bad x.

(8) Oil Absorbency Evaluation Method (Amount of Oil Absorbed, Sensation of Sebum Removal and Decreased Opacity) Cast oil / benzyl alcohol = 80 as a pseudo sebum
Using a mixed oil solution of / 20, the transfer of pseudo sebum to a greased paper sample was performed using a printability tester "RI Tester" (manufactured by Ishikawajima Sangyo Kikai Co., Ltd.). That is, 0.5 ml of the pseudo sebum was taken on a print roll of an RI tester, kneaded for 2 minutes to form an oil film uniformly on the print roll, and then the pseudo sebum was transferred onto the sample.

Fat Absorption The mass difference between the sample before and after the pseudo sebum transfer was defined as the fat absorption. Fat absorption (g / m ² ) = Sample basis weight after pseudo sebum transfer (g / m ² )
m ² ) -Sample basis weight (g / m ² ) before pseudo sebum transfer

Decreased opacity Based on the difference in opacity of the sample before and after pseudo sebum transfer as described above, the opacity was indicated as a unit of%. The greater the reduced opacity, the higher the apparent sebum removal feeling.

The feeling of sebum removal was evaluated by measuring the color difference of the sample before and after pseudo sebum transfer with a colorimeter "SM Color Computer SM-4-CH".
(Manufactured by Suga Test Instruments). Sum ie the color difference Delta] E _W of the sample before and after the pseudo sebum transfer was measured after five ply with white plate backing, also measures the color difference Delta] E _B similarly by changing the backing to black plate, both color difference This gave a feeling of sebum removal. The greater the sense of sebum removal ΔE = ΔE _W + ΔE _B ΔE, the higher the “feeling of sebum removal”. This is a visual index of the feeling of sebum removal, ◎: 20 or more, ○: 10-20, ×: 10 or less.

Example 1 A commercially available crepe paper made of 100% softwood pulp (Crecia Co., Ltd., trade name "Kimwipe, Wiper S-200") was used as a base paper and a test super calender manufactured by Yuri Roll Machine Co., Ltd. (Name: Mini Super Calender) was used for calendering. Calendering conditions: linear pressure 100 kg / cm, roll temperature 8
Paper was passed at 0 ° C. at a speed of 5 m / min. At the time of calendering, after the sheet was inserted between the calender rolls, the sheet was passed without pulling the sheet to produce the cosmetic fat-removing paper according to the present invention. Table 1 shows the physical properties and suitability of the obtained grease removing paper for cosmetics.

[0043]

[Table 1]

Example 2 A commercially available crepe paper (made by Crecia Co., Ltd., trade name: softwood pulp and hardwood pulp, which is paper-made at a ratio of about 8: 2, shows light brown color and seems to use unbleached pulp) "Kim towel") and remove water in the sheet by 1
5% humidity, linear pressure 250kg / cm, roll temperature 80
The product was subjected to calendering at 5 ° C. and a speed of 5 m / min in the same manner as in Example 1 to produce a decorative fat-removing paper according to the present invention. Table 1 shows the physical properties and suitability of the obtained grease removing paper for cosmetics.

Example 3 Using another commercially available crepe paper (trade name "Scott Precision" manufactured by Crecia Co., Ltd.), the same procedure as in Example 1 was carried out except that the sheet was lightly pulled during calendering and passed through. A cosmetic fat-removing paper according to the invention was produced.
Table 1 shows the physical properties and suitability of the obtained grease removing paper for cosmetics.

Embodiments 4 and 5 In the case of using another commercially available crepe paper (trade name "Kleenex Hand Towel" manufactured by Crecia Co., Ltd.), the embodiment 4 does not pull the sheet during calendering. Was prepared in the same manner as in Example 3, except that the sheet was lightly pulled to pass the paper. Table 1 shows the physical properties and suitability of the obtained grease removing paper for cosmetics.

In Example 5, the crepe stretched slightly because the web was passed with a little web tension applied during calendering, and the elongation in the MD direction was slightly low at 9%. It was close to the lower limit as a greased paper.

Comparative Example 1 Comparative Example 1 was a commercial crepe paper (Crecia Co., Ltd., trade name "Kimwipe, Wiper S-200").
The base paper. The physical properties of the crepe paper and the suitability for degreasing were measured, and the results are shown in Table 2. Comparative Example 1 has a lower smoothness than that of Example 1, and therefore has a rough feeling and a poor touch even when applied to the skin. In addition, the fat absorbability and the feeling of removing sebum were low, and thus the fat removal suitability was poor.

[0049]

[Table 2]

Comparative Example 2 A humidification was not performed before calendering, and the linear pressure was 100 kg /
A comparative example 2 was obtained by calendering in the same manner as in Example 2 except that the diameter was set to cm. Comparative Example 2 is a light brown sheet and has excellent appearance of removing sebum, but has a smoothness of about 200 sec. / 10 ml, which was low and had a rough feel to the touch, and had some difficulty in suitability as the cosmetic fat removing paper of the present invention. Table 2 shows the other physical property values and fat removal suitability.

Comparative Example 3 A commercial crepe paper (trade name “Scott Precision” manufactured by Crecia Co., Ltd.) used as a base paper of Example 3 was used as Comparative Example 3. Comparative Example 3 has a lower degree of smoothness than that of Example 3, and therefore has a rough feeling even on the skin and has a poor touch. In addition, the fat absorbability and the feeling of removing sebum were low, and thus the fat removal suitability was poor. Table 2 shows the other physical property values and fat removal suitability.

Comparative Examples 4 and 5 Comparative Example 4 was a commercially available high-density, high-smoothness grease-absorbing paper made of 100% wood pulp (manufactured by Athenia Cosmetics, trade name: "Athenia Face Paper"). Comparative Example 4 was not sufficiently stretched and soft as compared to the cosmetic fat-removing paper of the present invention, and therefore, when used in a curved portion or a depressed portion such as the side of a nostril, the paper was hard and crisp when used. And lacked a feeling of fit. Comparative Example 5 was a commercially available film-type fat-removing paper (trade name “Sweatable Oil Clear Film” manufactured by Shiramoto Co., Ltd.). Comparative Example 5 is a film made of a copolymer of polypropylene and polyethylene, which has high smoothness, high elongation and good flexibility, but has a low water absorption and is only 1/3 or less as compared with the cosmetic grease-absorbing paper of the present invention. Was something. The film-type fat-removing paper of Comparative Example 5 is one of the features of softness, and has a flexibility of 2.9 gf in the vertical direction and 2.6 gf in the horizontal direction. Although it shows a gf of 0.5 gf, the decorative fat removing paper of the present invention has obtained a flexibility sufficiently comparable to this film type fat removing paper, and shows how excellent the softness of the cosmetic fat removing paper of the present invention is. Was evident.

[0053]

The cosmetic fat-absorbing paper according to the present invention, which is adapted to the skin and has wiping aptitude, has a high-density treatment and a surface height so as not to impair the softness of the crepe paper with elongation and the high water absorption. By performing a smoothing treatment, a function and aptitude as fat removing paper are imparted. That is, the smoothness, the amount of oil absorption, and the feeling of removing sebum are increased to the level of a commercially available fat-removing paper by calendering. There is provided a cosmetic fat removing paper having a function as a conventional fat removing paper, and having a new function that is softer than the conventional fat removing paper and adapts to the skin and has a wiping suitability. The cosmetic fat removing paper of the present invention can be used as a tissue when removing makeup and as a fat removing paper when removing sebum.

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Claims (5)

[Claims] 1. A decorative fat-removing paper obtained by subjecting a previously creped sheet to a high-density treatment and a surface smoothing treatment. 2. The cosmetic fat removing paper according to claim 1, wherein the elongation in the longitudinal direction is 7% or more. 3. A surface smoothness of 250 sec. / 10ml
The cosmetic fat-absorbing paper according to claim 1, wherein: 4. The cosmetic fat-absorbing paper according to claim 1, wherein the water absorption is 60 g / m ² or more. 5. The paper according to claim 1, wherein the flexibility of the paper is 4 gf or less in both the vertical and horizontal directions, and the total flexibility including the flexibility in the vertical and horizontal directions is 6 gf or less.
A fat removing paper for cosmetic use according to 1.