JP3644346B2 - Degreased paper and method for producing the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a degreased paper suitable for use in absorbing and removing facial oil mainly when a woman makes up, and a method for producing the same.
[0002]
[Prior art]
Conventionally, foil punching paper is known as a degreasing paper for makeup. The foil punching paper sandwiches the gold foil when the gold foil is stretched. Then, the gold foil can be spread by repeatedly and uniformly hitting these desired numbers from the bundle surface with a foil punching machine. By repeating such a foiling process, the ability to spread the gold foil is reduced. The foil-coated paper in this state has a smooth surface and is soft to the touch, and also has a high density and rapidly absorbs facial fat, which becomes transparent due to the absorbed fat. It is used as a degreasing paper for makeup.
[0003]
However, such a degreased paper for cosmetics is merely an effective use of the foil paper used for foil stamping, and its supply amount has its own limit. In recent years, it has been used not only for cosmetics but also for removing facial oils to obtain a clean feeling, and has a tendency to expand the user base regardless of gender and age, There is a demand for paper.
[0004]
By the way, since the above-mentioned foil punched paper is provided with a concavo-convex layer on one side at the time of paper making, when used for foil making, the convex part with a large number of fibers becomes high density and the concave part with a small number of fibers becomes low density. The unevenness layer at the time of papermaking remains as a pattern due to this density difference. In general, a lattice pattern is known.
[0005]
Therefore, in recent years, when mass production of degreased paper is attempted, it is impossible to obtain the same state as the above-mentioned foil punched paper in the touch, so the pattern, that is, the state similar to the above foil-padded paper in design Trying to get things. As an example of the prior art, as described in JP-A-8-56867, a degreased paper is proposed in which a base paper is super calendered and then embossed to form a predetermined pattern. Has been. As another example of the prior art, as described in JP-A-9-121939, a three-layer structure of a highly water-absorbing intermediate layer and protective layers on both sides thereof is formed, and recesses and holes are formed in the intermediate layer. A degreased paper in which a watermark pattern is formed is proposed. As still another conventional example, as described in JP-A-10-1900, a degreased paper in which an uneven layer is formed on one side or both sides has been proposed.
[0006]
[Problems to be solved by the invention]
Among the above conventional examples, the degreased paper described in JP-A-8-56867 is designed to expose a pattern by embossing the base paper after super calendering. While being able to satisfy designability, transparency at the time of fat absorption can be obtained by being densified. However, the uneven layer accompanying the pattern remains on the surface and not only is inferior in touch, but also the fiber is crushed flat and the surface area becomes small in a smooth state, so that the absorbability of fat is inferior. Further, the degreased paper described in JP-A-9-121939 can express a predetermined pattern and can satisfy the design. However, if the surface is not super calendered, the touch is inferior, and transparency at the time of fat absorption cannot be obtained. Since it is necessary to weaken the applied pressure so as not to lose high water absorption, there is a limit to the improvement in transparency during fat absorption. Moreover, since the degreasing paper described in JP-A-10-1900 can improve the effect of removing fat, it has a concavo-convex layer on the surface, so that a predetermined pattern can be exposed. The design property can be satisfied. However, it is inferior in touch by having an uneven layer on the surface.
[0007]
An object of the present invention is to solve the conventional problems as described above, and is designed by displaying a desired pattern, and also has good touch, further absorbability of fat and fat. It is an object of the present invention to provide a degreased paper and a method for producing the same that can satisfy the transparency at the time of absorption at the same time, and thus can increase the commercial value.
[0008]
In order to solve the above-mentioned problems, the degreased paper of the present invention is composed of a base paper laminated in two layers with a raw material mainly composed of natural fibers, and the high-density part of the raw material accompanying unevenness at the time of making the base paper And a coating layer having a low density portion, and a coating layer that is provided so as to cover the concave and convex side of the papermaking layer and embed it in the concave portion , so that the base paper has a substantially uniform density as a whole. The base paper is subjected to a pressing process from the laminating direction and a hitting process in which an auxiliary sheet material stiffer than the base paper is overlapped with each other and beaten uniformly from the bundle surface .
[0009]
And by selecting the basic weight of the base paper in the range of 15 to 40 g / m ² , it is possible to obtain the necessary strength as a degreased paper and not to lose flexibility, optimally Is used in the range of ^{20 to} 30 g / m ² . Moreover, by selecting the density by the load application treatment in the range of 0.7 to 1.1 g / cm ³ , transparency after sebum absorption and flexibility at the time of sebum absorption can be satisfied, and optimally 0 Select at 75-0.9 g / cm ³ .
[0010]
Oil-absorbing paper production method of the present invention in order to solve the above problems, second and Extract insertion layer having an uneven surface by material mainly composed of natural fibers, and you across substantially uniform density coating layer Make a base paper that is embedded in the recess by covering the layered state and covering the high density part and low density part generated by the unevenness during the paper making of the paper making layer by the coating layer. The base paper is subjected to a pressing process from the stacking direction and a striking process in which the auxiliary sheet material harder than the base paper is overlapped with each other and beats uniformly from the bundle surface .
[0012]
According to the present invention as described above, a pattern can be expressed by the high-density part and the low-density part of the raw material accompanying unevenness at the time of paper making, and the design can be satisfied. The surface and the low-density part are embedded in the surface so that no irregularities are exposed on the surface, and the base paper is pressed from the lamination direction and the auxiliary sheet material stiffer than the base paper is overlapped with each other to form a bundle surface Since the striking process is applied uniformly , the touch can be improved, and the oil absorbability and the transparency at the time of oil absorption can be improved.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described.
FIG. 1 is a partial schematic explanatory view of a circular net paper machine used for making degreased paper according to an embodiment of the present invention, and FIGS. 2 (a) to 2 (c) are diagrams of degreased paper by the circular net paper machine. It is manufacturing process explanatory drawing.
[0014]
As shown in FIG. 1, a first bat 1a and a second bat 1b are arranged in series, and each bat 1a, 1b is provided with a cylinder 2a, 2b. Slurry papermaking raw material 3 is placed in each vat 1a, 1b. The wet blanket 4 is hung on a plurality of rolls 5 in an endless manner, and the wet blanket 3 is sandwiched between the cylinders 2a and 2b by the couch rolls 6a and 6b.
[0015]
The natural fiber that is the main component of the base paper is not particularly limited, and one or two of bast fibers such as manila hemp, kenaf, mitsumata, ganpi, kouzo, wood fiber, cotton fiber, silk, wool, etc. More than seeds can be used. In addition, if necessary, inorganic fillers such as talc, calcium carbonate and clay and fixing agents thereof, and paper strength enhancers such as polyamide epichlorohydrin, polyacrylamide, starch and carboxymethyl cellulose can be used. The above-mentioned natural fibers are adjusted to a desired beating degree with a beater, an inorganic filler is added to the slurry, stirred until uniform, and a wet paper strength agent, a fixing agent, etc. are further added to make a slurry paper. The raw material 3 can be obtained, and this papermaking raw material 3 is put into each vat 1a, 1b.
[0016]
Then, as shown in FIG. 1, the wet blanket 4 is caused to travel in the direction of the arrow, and the first and second cylinders 2a and 2b are rotated in the direction of the arrow. Thereby, first, as shown in FIG. 2A, the paper making layer 7 made of wet paper is made by the paper making wire in the first cylinder 2a and transferred to the wet blanket 4. Next, as shown in FIG. 2 (b) by the paper making wire in the second cylinder 2b, the paper making surface in the paper making layer 7 that is running with the wet blanket 4 by making the coating layer 8 made of wet paper, that is, Combine with the uneven surface side.
[0017]
Here, the paper making wire in the first cylinder 2a can be 5 to 40 mesh, or 40 to 100 mesh, which is crushed at every desired interval. By using such a papermaking wire, the amount of the papermaking raw material 3 is small because moisture does not permeate in the wire portion or the clogged portion, and the amount of the papermaking raw material 3 is large because moisture penetrates in the through hole portion. Therefore, the paper making layer 7 has an uneven surface on the side opposite to the wet blanket 4, that is, on the paper making wire side. On the other hand, the paper making wire in the second cylinder 2b is 40 mesh or more. By using such a papermaking wire, the coating layer 8 can be made into a flat shape having a substantially uniform density as a whole. In this way, when the paper is flat and less than 40 mesh, it cannot be used because the uneven surface is generated as described above, and preferably 80 mesh or more is used. At this time, the strength of the paper can be obtained by making the paper making layer 7 and the covering layer 8 as a whole with a basis weight of 15 to 40 g / m ² , and optimally 20 to 30 g / m ^2. The flexibility of not to lose.
[0018]
In the above assembling state, a large amount of water is contained, and while it is transported by the wet blanket 4, the water is sucked by a suction box (not shown), followed by pressure dehydration by a press roll, and a Yankee dryer. (Not shown) is pressed and adhered by a touch roll (not shown) and dried. And, in the combined state of the paper making layer 7 and the covering layer 8, since a large amount of water is contained as described above, the convex portion in the paper forming layer 7 is compressed with the covering layer 8 at the time of making the paper, and then pressed. Pressing with a roll, and then pressing and adhering to a Yankee dryer with a touch roll to dry, the convex part in the paper making layer 7 is strongly compressed to a high density state indicated by the oblique line on the upper right, and the concave part is weakly compressed. The low density state indicated by the oblique line with the lower right slope is embedded, and the high density portion and the low density portion are embedded in the interior. As shown in FIG. 2C, the flat base paper 9 having a substantially uniform thickness as a whole is formed. Can be obtained.
[0019]
Next, the base paper 9 is pressurized with a high pressure by a calendering machine or the like. By this pressure treatment, the base paper 9 has its fibers crushed from a columnar shape or the like to an elliptical shape or a flat shape in cross section to be densified, and both surfaces are smoothed. Thus, by increasing the density, the transparency during fat absorption is excellent, but the fat absorption rate is inferior. Therefore, in order to prevent this, the base paper 9 after the pressure treatment is cut into a square shape or a rectangular shape, and the base paper 9 and a desired number of auxiliary sheets made of glassine or the like that are harder than the base paper 9 are obtained. They are stacked one after the other and punched evenly from the bundle surface using a foil punch. Since heat is generated by striking, the striking operation is repeated while cooling. In this way, by repeatedly overlapping and striking the base paper 9 and the auxiliary sheet material, each fiber can be effectively loosened while maintaining its high density state, and flexibility can be improved. The surface area can be increased, and gloss can be obtained by polishing with friction with the auxiliary sheet. And the density after sebum absorption is improved by selecting the density after the striking treatment to be 0.7-1.1 g / cm ³ , optimally 0.75-0.9 g / cm ^3. The flexibility at the time of sebum absorption can be prevented from being lost.
[0020]
According to the said embodiment, a pattern can be exposed by the high-density part and low-density part of the raw material accompanying the unevenness | corrugation at the time of paper-making of the paper-making layer 7, and designability can be satisfied. Further, the high density portion and the low density portion are embedded inside the coating layer 8, that is, inside the coating layer 8 so as not to expose the unevenness at the time of paper making, and the base paper 9 is made into a bundle surface, that is, double layer paper making. After increasing the density by pressure treatment from the laminating direction in the lamination, the surface area is increased by striking and loosening each fiber into a plurality of fibers, so that the touch can be improved. Can improve the absorbability of fat and the transparency during absorption of fat. Therefore, the product price can be increased. Further, if the gloss is obtained by friction with the auxiliary sheet material, the product price can be further increased.
[0022]
【Example】
Examples of the present invention will be described below, but the present invention is not limited to these examples.
[0023]
(Example 1)
The blending ratio was 100 parts of Manila hemp, 10 parts of talc as an inorganic filler, 2.0 parts of polyamide epichlorohydrin resin as a wet paper strength agent, and 1.0 part of cationic styrene resin as a fixing agent. Then, Manila hemp was beaten with a beater, and the beating degree was adjusted to 18 ° SR. Talc was added to the slurry and stirred until uniform. Furthermore, polyamide epichlorohydrin and a cationic styrene resin were added to obtain a papermaking raw material 3. Using this papermaking raw material 3, paper was made by a circular net paper machine shown in FIG.
[0024]
The first cylinder 2a is made of paper, that is, a 16-mesh paper-making wire is used so that an uneven surface can be obtained, and the second cylinder 2b is made of a 100-mesh paper-making wire so that a flat layer can be obtained. Using. Sheet paper raw material 3 is adjusted so as to be 12 g / m ^{2 in} the first cylinder 2a and 12 g / m ² in the second cylinder 2b, and the two layers are combined so that the total basis weight is 24 g / m ^2. A base paper 9 was prepared. The base paper 9 was pressure at a linear pressure of 100 kg / cm by calender.
[0025]
Further, the above-mentioned calendered base paper 9 is cut into a 21 cm × 21 cm square, and these are alternately overlapped with 100% hard pulp glassine paper. Using different hammers with different weights, they were patted repeatedly from the bundle surface to create a degreased paper.
[0026]
(Comparative Examples 1-4)
As Comparative Example 1, the base paper 9 was used. Further, as Comparative Example 2, a base paper prepared in the same manner as in Example 1 above was used except that a 100-mesh papermaking wire similar to that of the second cylinder 2b was used for the first cylinder 2a. Further, as Comparative Example 3, a degreased paper was prepared by pressing with a calendering machine in the same manner as in Example 1 except that the same 100 mesh papermaking wire as that of the second cylinder 2b was used for the first cylinder 2a. did. Further, as Comparative Example 4, a foil punching paper that is currently marketed as the highest grade degreasing paper was used.
[0027]
Regarding the degreased papers of Examples and Comparative Examples 1 to 3, the density, smoothness, oil absorbency, touch, and satisfaction were evaluated. The density was measured according to JIS P 8118. The smoothness was measured according to JIS P 8119. In addition , the surface which contacted the Yankee dryer at the time of paper making was made into the table | surface, and the opposite surface was made into the back. For oil absorption, castor oil and benzyl alcohol are mixed at a ratio of 50:50, and a test piece (7 cm × 7 cm) whose weight has been measured in advance is immersed in this mixed solution, and then the corner of the test piece is sandwiched, After hanging for 1 minute and dropping an excess liquid mixture, the weight was measured. About this oil absorbency, it computed by following Formula.
Absorbency (%) = (weight after immersion−weight before immersion) / weight before immersion × 100
The touch was a sensory test, and the evaluation when the sample was actually degreased with a sample was good, but it was indicated with ◯, normal with Δ, and bad with ×. About satisfaction, the sample after removing the facial fat was observed, and the transparency was compared. The evaluation was good, ◯, normal, △, and bad, x. The evaluation results are shown in Table 1 below.
[0028]
[Table 1]
[0029]
As is clear from the above test results, Comparative Examples 1 and 2 are base papers that have only been paper-made, and although they have high oil absorbency due to their low density, they are inferior in smoothness, texture, and satisfaction. Is inferior in design because there is no papermaking. Since Comparative Example 3 increased density by calendering, it improved smoothness and was excellent in touch and satisfaction, but was slightly inferior in oil absorbency, and Comparative Example 4 was high in both density and smoothness to obtain touch and satisfaction. However, it is inferior in oil absorption. On the other hand, an Example raises a density, improves smoothness, is excellent in the touch and satisfaction, and is excellent also in design nature because there is papermaking. In other words, it was found that the examples were excellent in balance in all aspects of design properties, good touch, fat absorbability, and transparency during fat absorption.
[0030]
【The invention's effect】
In short, according to the present invention, a pattern can be expressed by the high density portion and the low density portion of the raw material accompanying the unevenness at the time of paper making, and the design can be satisfied. And the low density part is embedded inside so that the unevenness at the time of paper making is not exposed on the surface, and the load is applied to the base paper from the lamination direction, so the touch can be improved, Furthermore, the absorbability of fat and the transparency at the time of absorption of fat can be improved. Therefore, the commercial value can be increased.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a schematic explanatory view showing a part of a circular net paper machine used for manufacturing degreased paper according to an embodiment of the present invention.
FIGS. 2A to 2C are explanatory diagrams of manufacturing steps of the same degreased paper.
[Explanation of symbols]
1a, 1b Bat 2a, 2b Cylinder 3 Papermaking base paper 4 Wet blanket 6a, 6b Couch roll 7 Paper making layer 8 Covering layer 9 Base paper

Claims (4)

A papermaking layer having a high-density part and a low-density part of the raw material, which is formed on a base paper laminated in two layers with a raw material mainly composed of natural fibers, and has unevenness at the time of paper making of the base paper, and the paper making layer It is provided so as to cover the concave and convex side at the time of paper making and embed in the inside of the concave portion, and comprises a coating layer that makes the base paper substantially uniform in density, and this base paper is subjected to pressure treatment from the laminating direction , A degreased paper that has been subjected to a striking process in which auxiliary sheets that are stiffer than the base paper are stacked on top of each other and beaten evenly from the bundle surface . Oil-absorbing paper according to claim 1, wherein the basis weight of the base paper is 15 to 40 g / m ^2. And pressure treatment, the density of the paper by Tsuchida processing stiff auxiliary sheet and allowed the overlapped each other hit a bundle surface evenly than the base paper is 0.7~1.1g / cm ³ according Claim | item 1 or the degreasing paper of Claim 2. Extract of natural fibers and Sho insertion layer having an uneven surface by material mainly comprising, Extract alignment in the stacked state of two layers with you across substantially uniform density coating layer, the Extract insertion layer by the coating layer A base paper in a state where the high density portion and the low density portion generated along with the unevenness at the time of insertion are covered and embedded in the inside of the concave portion is formed, and this base paper is pressed from the lamination direction and is harder than this base paper A method for producing a degreased paper in which an auxiliary sheet-like material is superposed on each other and subjected to a hitting process that hits uniformly from a bundle surface .