JP2518765Y2 - Base paper for cosmetics - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a base paper for a cosmetic material, and more specifically, a base paper for a cosmetic material on the surface of which an unfoamed water-based resin can be easily applied and which causes no problems in the foaming process. Regarding paper.

Various decorative materials are attached to the ceiling or wall surface of buildings, various home appliances, cosmetic boxes, interiors of automobiles, etc. in order to enhance the design. In the present invention, wallpaper will be described below as a typical example of the decorative material. recent years,
With the expansion of housing demand, the use of wallpaper as interior material for interior decoration is increasing rapidly. Along with this, the demands of customers have diversified, and various functional wallpapers have been supplied.
The decorative layer formed on the surface of the wallpaper is provided mainly for the purpose of imparting durability and design to the wallpaper, and a foamable or non-foaming vinyl chloride resin coating is applied to the base paper surface in an amount of 100 to 100%.
The most examples are coating around 200 g / m ² . Conventionally, a calendar method, a reverse roll coater method, a gravure printing method, a rotary screen printing method, or the like has been used for coating the decorative layer.

On the other hand, a base paper for wallpaper (backing paper) is indispensable for producing wallpaper, and a large amount of flame-retardant base paper is used. In order to impart flame retardancy to the base paper, the base paper may contain a large amount of inorganic filler (backing paper for inorganic wallpaper), or the base paper may be impregnated with a flame retardant (backing paper for vinyl wallpaper, etc.).
Most of the examples are. For example, as for a wallpaper base paper containing an inorganic filler in an amount of 80% by weight or more based on the base paper and further imparting peelability, Japanese Patent Application Laid-Open No.
The technology described in No. 161598 is applied.

On the other hand, recently, the number of concrete buildings has increased and the airtightness of the room has been improved, so that it is a problem that dew condensation easily occurs on the wall surface. In addition, wallpaper with a large amount of vinyl chloride resin coated on the surface as described above generates a large amount of chlorine gas and smoke when discarded and burned, and plasticizers such as DOP are buried underground during landfill disposal. It has been pointed out that there are problems such as elution to water and pollution of the environment. The amount of heat generated when the wallpaper burns, the amount of smoke emitted, and the amount and type of gas generated are the content of cellulose fibers and flame retardants that make up the base paper,
It greatly changes depending on the amount of resin in the decorative layer and its type.
For this reason, so-called "human and earth-friendly" wallpaper is being developed in which the thickness of the decorative layer is made as small as possible and a resin other than vinyl chloride resin is used. For example, a technique for forming a decorative layer mainly composed of an aqueous synthetic resin emulsion on a base paper has been studied, and Japanese Patent Laid-Open Nos. 4-126239 and 4-1 have been studied.
No. 26240 is disclosed.

[0005] There are unique difficulties in producing a wallpaper that forms a decorative layer mainly composed of a water-based synthetic resin. This is because the cellulose fibers (pulp fibers), which are one component of the base paper, are hydrophilic, and the cellulose fibers swell under the influence of water when the aqueous resin is applied. For example, when a base paper for wallpaper containing a large amount of the inorganic filler described in JP-A-3-161598 described above is coated with a coating liquid in which an aqueous synthetic resin emulsion, a foaming agent, an inorganic filler and the like are mixed, the base paper is coated. Non-uniform expansion and contraction causes a phenomenon that the sheet is wavy (hereinafter referred to as "waviness phenomenon"). This is a fatal defect in the wallpaper manufacturing process.

In order to solve the deficiency of swelling of cellulose fibers, in JP-A-4-126240, polyvinyl chloride, polyethylene, polypropylene, polyurethane, polyamide, polyester is provided at least on the surface of the backing paper (base paper) on which the decorative layer is formed. , 5 to 30 g / m ² of “water impermeable synthetic resin coating layer” such as synthetic rubber, acrylic resin, etc. is formed, and this layer prevents the permeation of water into the base paper when the water based resin is applied. , A proposal has been made to solve the "waviness phenomenon" of the base paper.

However, as a result of the study by the present inventors, this method can prevent the "waviness phenomenon" that occurs when the water-based synthetic resin is applied, but the water vapor generated during the drying and foaming process. , Air, foaming gas, etc. have no escape in the thickness (Z) direction of the base paper, causing “blister phenomenon” in the decorative layer, or foaming gas causes the foamed resin layer to rise from the coating layer “floating phenomenon” Was found to occur. When this phenomenon occurs, adhesion between the base paper and the decorative layer becomes poor, and durability and commercial value of the wallpaper are significantly reduced, which is a fatal problem.

[0008]

SUMMARY OF THE INVENTION The present invention aims to solve these drawbacks. That is, even if an unfoamed water-based resin is applied as a decorative layer, the "wavy phenomenon" does not occur on the base paper during coating, and the "blister phenomenon" or "floating phenomenon" of the decorative layer occurs during the drying or foaming process. A subject is to obtain a base paper for a cosmetic material that does not wake up.

[0009]

[Means for Solving the Problems] As a result of earnest research, the present inventors have developed a new base paper for cosmetics that solves these problems. The gist of the present invention will be described with reference to the drawings. 1, 2, and 3 are partially enlarged sectional views of the base paper for decorative material of the present invention. According to the present invention, a filler coating layer 2 having a coating amount of 7 to 20 g / m ² is prepared by mixing 10 to 25 parts by weight of a binder with 100 parts by weight of the filler on the back surface of the base paper 1, and 100 parts by weight of the filler on the surface. breathable filler coating layer 3 of the coated amount 10 to 30 g / m ² of binder was blended 25 to 60 parts by weight is provided, the moisture permeability of this state 1500-70
It is a base paper for a decorative material (Fig. 1) characterized in that it is 00 g / m ² · 24 hours, and further, 10 to 25 parts by weight of a binder is blended with 100 parts by weight of a filler on the back surface of the base paper 1. coated amount 7~20g / m ² of filler coating layer 2, vapor-permeable filler coating layer of coated amount 10 to 30 g / m ² of binder was blended 25 to 60 parts by weight with respect to filler 100 parts by weight of the surface 3 and a moisture permeable resin coating layer 4 are sequentially provided, and the moisture permeability in this state is 1500 to 7000 g / m ² · 24 hours, which is a base paper for a decorative material (FIG. 2). Is 10 to 25 parts by weight of a binder based on 100 parts by weight of a filler on the back surface of the base paper 1 and a coating amount of 7 to 20 g /
filler coating layer 2 of the m ^2, moisture-permeable resin coating layer 4, and moisture permeability filler coating of coated amount 10 to 30 g / m ² of binder was blended 25 to 60 parts by weight with respect to filler 100 parts by weight of the surface Layers 3 are sequentially provided, and the water vapor permeability in this state is 1500 to 7
It is a base paper for a decorative material (FIG. 3), which is characterized in that it is 000 g / m ² · 24 hours.

The base paper 1 used in the present invention is composed mainly of cellulose fibers, and if necessary, synthetic fibers, inorganic fibers, synthetic pulp, etc. are appropriately blended, and a self-extinguishing filler, other fillers,
Dry strength agent, wet strength agent, coloring agent, sizing agent,
It can be obtained by appropriately adding a fixing agent and the like and making a paper.

Cellulose fibers used in the present invention are bleached softwood kraft pulp (NBKP), bleached hardwood kraft pulp (LBKP) and bleached softwood sulphite pulp (NBK).
BSP), thermo-mechanical pulp (TMP) and other wood pulp as the main component, hemp, kozo, goose leather and other gin skin fibers,
It means a mixture of cotton linter, non-wood pulp such as bamboo and straw, etc. as appropriate. In the present invention, if necessary, synthetic materials such as vinylon, nylon, polyester, etc., glass fibers, inorganic fibers such as rock wool, and fibrous substances such as synthetic pulp may be appropriately added to these cellulose fibers alone or in a mixture. it can.

The base paper is made by a conventionally known method. That is, the normal freeness is 350 to 630 ml C.I. S. F. so,
Using a cylinder paper machine or Fourdrinier paper machine
200 g / m ² of base paper is made into paper.

It may be preferable that the base paper is flame-retardant in view of its use. As a method of making the base paper flame-retardant, any conventionally known method can be adopted. That is, a method of incorporating a large amount of self-extinguishing filler such as aluminum hydroxide during papermaking of the base paper, a method of impregnating the base paper with a flame retardant such as guanidine sulfamate, a method of coating the base paper with a self-extinguishing filler, and These are combinations and the like.

In the present invention, the base paper 1 produced in this way
The filler coating layer 2 is provided on the back surface of the. This layer is a layer for permeating only the water content of the paste solution into the base paper layer during the gluing operation during the construction of the decorative material.When the water is absorbed, the decorative material becomes soft and can be rolled, stretched, or cornered. Easy to install. When the paste penetrates into the base paper layer, the strength of the base paper layer between the base papers increases and the peelability is impaired. Therefore, when the paste is used for wallpaper, this layer plays a particularly important role. Further, by providing this layer, opacity and flame retardancy are also improved.

The filler coating layer 2 is required to have appropriate water resistance, and is mainly composed of a filler and a binder, and is coated on the base paper 1 using a coating machine such as an air knife coater or a blade coater. Be engineered. The blending ratio of the filler and the binder is 100 parts by weight of the filler in terms of solid content (in the present invention,
Means all parts by weight means the value in terms of solid content ) and 10 to 25 parts by weight of the binder are blended . Less than 10 parts by weight sidelines required strength of the coating layer, because an adverse effect on permeability exceeds 25 parts by weight. At this time, a dispersant, a water-proofing agent, a coloring agent, an antifungal agent and the like can be appropriately used in combination.
Coated amount of filler coating layer 2 is a 7~20g / m ^2. It can not prevent small and the penetration of the glue than this, even if too much is because does not change the penetration prevention effect.

A moisture permeable filler coating layer 3 is provided on the surface of the base paper 1, but this layer may be provided alone as shown in FIG.
Alternatively, as shown in FIG. 3, the moisture permeable resin coating layer 4 may be provided in advance. Further, as shown in FIG. 2, a moisture-permeable resin coating layer 4 may be further provided on the moisture-permeable filler coating layer 3. The water vapor transmission rate of the base paper after providing these layers needs to be within a specific range (1500 to 7000 g / m ² · 24 hours), and this is the greatest feature of the present invention.
In the present invention, the water vapor permeability means a value measured for 24 hours under the condition B (90% RH at 40 ° C.) according to the cup method specified in JIS-Z0208. By setting the moisture vapor transmission rate within this range, the above-mentioned "waviness phenomenon" and "blister phenomenon"
"Floating phenomenon" can be completely prevented.

The filler coating layer 2 and the moisture-permeable filler coating layer 3 are obtained by coating a coating liquid mainly containing a filler and a binder. At this time, the flame retardancy can be enhanced by using a coating liquid mainly composed of a self-extinguishing filler and a binder. As the self-extinguishing filler, any of aluminum hydroxide, magnesium hydroxide, calcium aluminate, calcium hydroxide, dawsonite, calcium aluminate and the like can be used, but the use of aluminum hydroxide has a large effect. preferable. As a binder,
A synthetic rubber latex such as SBR or MBR, an acrylic emulsion, a vinyl chloride emulsion, a vinylidene chloride emulsion, and a copolymer emulsion of these, casein, starch, PVA and the like are used in appropriate combination.
A self-extinguishing filler alone or by adding a dispersant to two or more kinds of fillers and then dispersing it to prepare a coating liquid, in which case a flame retardant, a filler such as titanium dioxide, a water retention agent, a fluidity It is also possible to add an improving agent, an antifungal agent, an antiseptic agent, a coloring agent and the like, if necessary.

The moisture-permeable filler coating layer 3 is a subbing layer of the unfoamed water-based resin layer, which is a decorative layer, and is not only a layer to be adhered to the unfoamed water-based resin but also a binder. It functions as an adhesion-enhancing layer because it has an affinity due to the type and an anchoring effect peculiar to the filler coating layer. It also works to prevent "waviness". The coating liquid material used is the same as the material of the filler coating layer 2 described above, but the blending ratio of the binder and the coating amount have a great influence on the moisture permeability, water resistance and size property. The blending ratio of the filler and the binder is 25 to 60 parts by weight with respect to 100 parts by weight of the filler.
25 because the size of the water strength less the coating layer than the weight part is poor, "waving" is generated commercialization difficult next time of applying the unfoamed aqueous resin, also it exceeds 60 parts by weight Although the sizing degree and water resistance are improved, the water vapor transmission rate of the base paper is 1500 g / m ² · 24 hours or less, and after the water-based synthetic resin is applied, steam and air generated in the drying and foaming process, and further foaming gas It will be no longer of escape, such become a product caused a "swelling phenomenon" and "floating phenomenon"
This is because The coating amount of the moisture permeable filler coating layer is 1
It is set to 0 to 30 g / m ² . If it is less than 10 g / m ^{2, the} water vapor transmission rate will be 7,000 g / m ² · 24 hours or more, and the “waviness phenomenon” will occur for the same reason as described above.
exceeds g / m ² moisture permeability because results hindered becomes less 1500g / m ² · 24 hours.

In the present invention, in order to further improve the anchoring effect, fillers having different particle diameters are mixed and silica gel, synthetic silica, activated clay, porous fillers such as calcium silicate having a large specific surface area due to their structure are used. It can also be used together.

In the present invention, in order to further stabilize the sizing degree and water resistance, a moisture permeable resin coating layer 4 may be provided on the moisture permeable filler coating layer 3 as shown in FIG. Although this varies depending on the type of binder used, the coating amount is preferably 1 to 5 g / m ² . With such a coating amount, there is no risk of completely covering the surface of the moisture-permeable resin coating layer 4, and when it is 5 g / m ² or more, the moisture permeability is lower than 1500 g / m ² · 24 hours, 1 g
If it is less than / m ² , similarly, it will exceed 7,000 g / m ² · 24 hours and the above-mentioned problems will occur.

The base paper for decorative material of the present invention can also be constructed as shown in FIG. In this case, the above-mentioned filler coating layer 2 is provided on the back surface of the above-mentioned base paper, and the moisture-permeable resin coating layer 4 and the moisture-permeable filler coating layer 3 are sequentially provided on the front surface thereof to obtain the moisture permeability of the coated paper obtained. Is 1500-7000 g / m ² · 24 hours.

The base paper for decorative material of the present invention is manufactured as described above. Next, a method for manufacturing a decorative material using this base paper will be described. An unfoamed water-based resin coating layer is provided on the surface of the base paper, and the water-based resin is one or two kinds of various synthetic resin emulsions such as acrylic emulsion, ethylene vinyl acetate emulsion, acrylic vinyl chloride emulsion, and urethane emulsion. Using the above, it contains thermal foamable microspheres, inorganic or organic foaming agents, coloring agents, defoaming agents, fluidity improvers, etc., to improve opacity and flame retardancy, titanium dioxide Then, a coating solution containing calcium carbonate, self-extinguishing filler, etc. is coated in a solid content of 20 to 250 g / m ² and dried.

The heat-expandable microspheres are disclosed in US Pat. No. 2,977,201, JP-B-42-25524, JP-B-44-7344, etc., and a copolymer of methacrylic acid and styrene, acrylonitrile, is used. A foaming agent such as butane gas is contained in resin fine particles such as a styrene copolymer and vinylidene chloride. The foaming temperature is usually 100 to 200 ° C, preferably 120 to 170 ° C. When the foaming temperature is lower than 100 ° C., the drying efficiency of the unfoamed aqueous resin coating layer and the printing layer to be described below deteriorates, and when it exceeds 200 ° C., problems such as discoloration easily occur.

Next, typical formulation examples of the coating liquid for the unfoamed aqueous resin coating layer will be described. 100 parts by weight of ethylene acetate vinyl emulsion (trade name "Sumikaflex-401" manufactured by Sumitomo Chemical Co., Ltd.) and 100 parts of aluminum hydroxide (trade name "Hijilite H-42" manufactured by Showa Denko KK) 2 parts by weight of a dispersant (trade name "Smilet's Resin DS-10", manufactured by Sumitomo Chemical Co., Ltd.) is added, and further a foaming agent (trade name "F-85", Matsumoto Yushi Kagaku Kogyo Co., Ltd.). (Manufactured by Co., Ltd.) 15 parts by weight, water retention agent, antifungal agent, flame retardant, coloring agent, etc., added in total of 3 parts by weight, concentration 60
A water-based synthetic resin coating liquid having a viscosity of 7,000 to 10,000 cps is prepared. Next, the coating liquid is applied to the surface of the base paper using a roll bar coater, a comma coater or the like, and dried at a foaming temperature or lower.

Next, a typical example of manufacturing a decorative material using this material will be described. When the unfoamed water-based resin coating layer has a high coating amount, after printing a pattern, a pattern or the like on the surface of the unfoamed water-based resin coating layer layer with an offset or gravure printing machine, 120 to 170 ° C. After heat treatment for 20 to 30 seconds to foam, embossing is performed to obtain a decorative material. When the unfoamed water-based resin coating layer has a low coating amount, the same pattern,
After performing printing such as a pattern, using a gravure or a rotary screen printing machine, further add a coloring agent to the unfoamed aqueous resin coating layer coating liquid as described above to perform partial printing, Foaming and embossing are applied to obtain a decorative material. This method is suitable for obtaining a decorative material with a rich gradation. If you want to further improve the surface strength of the decorative material,
Various resins may be further surface-coated before or after the foaming step.

[0026]

EXAMPLES Examples will be described below with reference to parts by weight and g
/ M ² means an absolutely dried product. Example 1 Production of base paper As a wood pulp, 50 parts by weight of a mixture of NBKP: LBKP = 7: 3 was beaten to give 550 ml C.I. S. F. And
To this pulp slurry, 30 parts by weight of aluminum hydroxide (trade name "Hijilite H-42", manufactured by Showa Denko KK) and 20 parts by weight of clay (manufactured by Kanaya Industry Co., Ltd.) were mixed and dispersed to give a slurry concentration of 5 Adjusted to wt%. Wet strength enhancer (trade name "Kaimen 557H" manufactured by Dick Hercules Co., Ltd.) 1.5 relative to the weight of the solid content of the slurry
% By weight to add a polymeric anionic flocculant (trade name “High Wheeler 351” manufactured by Kurita Water Industries Ltd.) to 0.00
After adding 6% by weight, the grammage is 84 with a Fourdrinier paper machine by a conventional method.
An unsized paper of g / m ² was obtained. Furthermore, a flame retardant (guanidine sulfamate) was used in a size press machine during the papermaking process.
Treated with a mixed impregnating solution of 12% by weight, 1% by weight of a sizing agent (trade name "Harcon 751" manufactured by Harima Kasei Co., Ltd.), and 1% by weight of starch to obtain a base paper having a basis weight of 90 g / m ² after the treatment. It was

Production of coating liquid for filler coating layer 100 parts by weight of aluminum hydroxide (same as above), 7 parts by weight of starch (trade name "MS-4600", manufactured by Nippon Shokubai Co., Ltd.), acrylic resin emulsion ( Product name "PRIMAL TR-934HS", sold by Sanyo Trading Co., Ltd.) 17 parts by weight as a main component, and a suitable amount of a dispersant, a defoaming agent, a stabilizer, and an antifungal agent is added to the mixture to prepare a coating liquid. Working fluid concentration 45% by weight
It was trained to.

Production of coating liquid for moisture-permeable filler coating layer 100 parts by weight of aluminum hydroxide (same as above), 7 parts by weight of starch (same as above), acrylic resin emulsion (same as above) 50
By mixing parts by weight, the above-mentioned auxiliary agents such as a dispersant were added to prepare a coating liquid having a coating liquid concentration of 48% by weight.

[0029] Using an air knife coater, coating liquid 20 g / m ² for the filler coating layer on the back surface of the base paper, coating liquid 20 g / m ² coating for the moisture-permeable filler coating layer on the surface Then, a base paper having a basis weight of 130 g / m ² was obtained.

Example 2 Example 1 was applied to the back surface of the 90 g / m ² base paper obtained in Example 1.
20 g / m ² of the same coating solution for the filler coating layer, 30 g / m ^{2 of the} coating liquid for the moisture permeable filler coating layer on the surface, and a base paper having a basis weight of 140 g / m ² . Got

Example 3 Example 1 was applied to the back side of the 90 g / m ² base paper obtained in Example 1.
7 g / m ² of the coating liquid for the filler coating layer having the same formulation as the above and 15 g / m ^{2 of the} coating liquid for the moisture permeable filler coating layer on the surface, and a basis weight of 112 g / m ² Got the paper.

Example 4 On the back side of the 90 g / m ² base paper obtained in Example 1, Example 1 was applied.
15 g / m ² of the same coating liquid for the filler coating layer and 15 g / m ^{2 of the} coating liquid for the moisture permeable filler coating layer on the surface, and the acrylic resin emulsion ( trade name, "Primal TR-934HS" 40 2 g / m ² coated with a coating solution for weight percent solution permeable resin coating layer consisting of), to obtain a base paper having a basis weight of 122g / m ^2.

Example 5 Example 1 was applied to the back side of the 90 g / m ² base paper obtained in Example 1.
15g of coating solution for filler coating layer of the same formulation as / m ^2, coating liquid 2 g / m ² for the moisture-permeable resin coating layer made of 40 wt% solution of an acrylic resin emulsion (Id.) On the surface 15g of coating liquid for the coating layer for moisture permeable filler coating layer
/ M ^{2 was} applied to obtain a base paper having a basis weight of 122 g / m ² .

[0034] Comparative Example 1 base paper of 90 g / m ² obtained in Example 1, Example 1 and the coating liquid 25 g / m ² on the rear surface of a filler coating layer of the same formulation, the surface 40 g / m ² Coating was performed to obtain a base paper having a basis weight of 155 g / m ² .

[0035] Comparative example 2 Example 1 obtained in 90 g / m ² base paper, used in Example 1, the formulation of the filler coating layer coating liquid 5 g / m ² on the rear surface of a, 10 g on the surface / m ² Coating was performed to obtain a base paper having a basis weight of 105 g / m ² .

Comparative Example 3 ^On the base paper of 90 g / m ² obtained in Example 1, a coating solution for the filler coating layer having the same formulation as in Example 1 was coated on the back surface with 15 g / m ² and with a moisture-permeable resin coating on the surface. 15g / m ² coating solution for coating layer,
A base paper having a basis weight of 120 g / m ² was obtained.

Comparative Example 4 ^On the base paper of 90 g / m ² obtained in Example 1, a coating solution for the filler coating layer having the same formulation as in Example 1 was coated at 15 g / m ² on each of the front and back sides, and the basis weight was adjusted. A base paper of 120 g / m ² was obtained.

Next, an unfoamed aqueous resin coating layer was provided on the surface of the base paper obtained in each of the examples and comparative examples. Formulation of coating liquid for unfoamed water-based resin coating layer Aluminum hydroxide (trade name "Hijilite H-4
2 ", manufactured by Showa Denko KK, and 100 parts by weight of acrylic resin emulsion (trade name" Primal TR-9 "
34HS ", sold by Sanyo Trading Co., Ltd.) 100 parts by weight, 15 parts by weight of a foaming agent (trade name" S-85 ", manufactured by Matsumoto Yushi Kagaku Kogyo Co., Ltd.) are added, and a dispersant, a defoaming agent, and an antifungal agent are added. Add an appropriate amount of auxiliary agents such as agents, coating liquid concentration 68 wt%, viscosity 60
A coating solution of 00 cps was prepared.

The coating solution was applied to the surface of the base paper at 170 g / m ² using a comma coater to produce a cosmetic material. The drying temperature was 120 ° C., which was lower than the foaming temperature of the unfoamed water-based resin, and the coating speed was 25 m / min. At this time, the "waviness phenomenon" was observed.

The cosmetic material thus obtained was used, the surface of the material was printed, and the foaming device was used (160 ° C.).
After heat treatment for 30 seconds), foaming was performed, and "blister phenomenon" and "floating phenomenon" were observed.

The results obtained are shown in Table 1. In the table,
⊚ indicates extremely excellent, ∘ indicates excellent, Δ indicates inferior, and x indicates extremely inferior. For practical purposes, it is necessary to enter ○ to ◎.

[0042]

[Table 1]

As is clear from Table 1, Examples 1 to 5 are all excellent in the effect of preventing the "waviness phenomenon", "blister phenomenon" and "floating phenomenon". On the other hand, Comparative Example 1 (see FIG.
In the case of conforming to the constitution (1) and having a moisture permeability lower than the lower limit, the "waviness phenomenon" is excellently prevented, but the "blister phenomenon" and "floating phenomenon" are not effectively prevented. Further, in Comparative Example 2 (an example in which the moisture permeability exceeds the upper limit in conformity with the configuration of FIG. 1), there is an effect of preventing "blister phenomenon" and "floating phenomenon", but "waviness phenomenon"
Cannot be prevented. In addition, Comparative Example 3 (for example, in Japanese Patent Laid-Open No.
(Complying with the one disclosed in -126240), the effect of preventing the "waviness phenomenon" is excellent as in Comparative Example 1, but there is no effect of preventing the "blister phenomenon" and the "floating phenomenon". In Comparative Example 4 (conventional example disclosed in Japanese Patent Laid-Open No. 3-16598), the "blister phenomenon" and "floating phenomenon" are prevented as in Comparative Example 2, but the "waviness phenomenon" is prevented. Can not.

[0044]

The base paper for decorative material of the present invention is constructed as described above, and has the following remarkable effects. 1) When applying an unfoamed aqueous resin coating layer coating liquid,
It has become possible to manufacture without causing the "waviness phenomenon". 2) The "blister phenomenon" did not occur in the coating and drying step of the coating liquid for the unfoamed aqueous resin coating layer. 3) The "floating phenomenon" in the foaming process was no longer observed.

[Brief description of drawings]

FIG. 1 is a partially enlarged sectional view of a base paper for decorative material of the present invention.

FIG. 2 is a partially enlarged sectional view of a base paper for decorative material of the present invention.

FIG. 3 is a partially enlarged sectional view of a base paper for decorative material of the present invention.

[Explanation of symbols]

 1 Base paper 2 Filler coating layer 3 Moisture-permeable filler coating layer 4 Moisture-permeable resin coating layer

Claims (3)

(57) [Scope of utility model registration request] 1. A coating amount of 7 to 2 in which 10 to 25 parts by weight of a binder is mixed with 100 parts by weight of a filler on the back surface of the base paper 1.
Filler coating layer ² of 0 g / m ² , coating amount 1 in which 25 to 60 parts by weight of a binder is mixed with 100 parts by weight of the filler on the surface.
Breathable filler coating layer 3 is provided 0~30g / m ^2, the decorative material for a base paper, wherein the moisture permeability of this state is 1500~7000g / m ² · 24 hours. 2. A coating amount of 7 to 2 in which 10 to 25 parts by weight of a binder is mixed with 100 parts by weight of a filler on the back surface of the base paper 1.
Filler coating layer ² of 0 g / m ² , coating amount 1 in which 25 to 60 parts by weight of a binder is mixed with 100 parts by weight of the filler on the surface.
The moisture permeable filler coating layer 3 and the moisture permeable resin coating layer 4 of 0 to 30 g / m ² are sequentially provided, and the moisture permeability in this state is 150.
A base paper for a decorative material, which is characterized in that it is 0 to 7,000 g / m ² · 24 hours. 3. A coating amount of 7 to 2 in which 10 to 25 parts by weight of a binder is mixed with 100 parts by weight of a filler on the back surface of the base paper 1.
A filler coating layer ² of 0 g / m ^2, a moisture-permeable resin coating layer 4 on the surface, and 25 to 25 parts by weight of a binder with respect to 100 parts by weight of the filler.
60 breathable filler coating layer 3 of the coated amount 10 to 30 g / m ² was parts by compounding sequentially provided, the moisture permeability of this state 15
Base paper for cosmetics, characterized in that it has a capacity of from 00 to 7000 g / m ² · 24 hours.