JPS63112737A - Cross-cuttable raw paper for foil lamination - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a base paper for drawing foil, and more specifically, the present invention relates to a base paper for drawing foil, and more specifically, it has improved strength, does not cause uneven seams, and can easily form pictures, patterns, letters, etc., both continuously and discontinuously. This invention relates to base paper for drawing foil that enables cross-cutting.

[Prior Art] Conventionally, as a base paper for drawing foil, manufactured Japanese paper with high strength in the longitudinal direction, such as gambi paper (vertical tension 3. I K
gld, transverse tensile strength of about 1.7 Kg/u') was used. For this reason, the microslits were also vertical. Therefore, when weaving into a belt, for example, 4 to 5 strips of foil strips are usually required, resulting in seams, which necessitates devising designs and labor for splicing.

[Object of the Invention] In view of the above-mentioned conventional problems, the present invention improves the strength, has no seams, and therefore does not cause uneven seams, and has a special feature in the design, regardless of whether the characters are continuous or discontinuous. To provide an extremely excellent base paper for drawing foil that is completely different from conventional base paper for drawing foil and that does not require any ingenuity or effort for joining.

[Structure of the Invention] That is, the present invention relates to a base paper for drawing foil that can be cut across the paper, which is made of a composite material in which Japanese paper is bonded to at least both sides of a stretched film via an adhesive.

That is, in the cross-cuttable base paper for drawing foil of the present invention, the conventional base paper for drawing foil is used as the base paper, paper-made Japanese paper with high strength in the longitudinal direction,
For example, Ganpi paper (longitudinal tensile strength 3.1 Kg/d, transverse tensile strength 1
．． Since I used about 7 kg/d, (1) I had to make micro slits in the vertical direction of the base paper.

(2) For this reason, for example, when weaving into a belt, as many as 4 to 5 foil short plates are usually required.

(3) A seam portion occurred accordingly.

(4) For this reason, a set of 4 to 5 pictures was required for the - obi, and the design required some ingenuity.

(5) It required time and effort to join the joints.

These problems can be solved by using a composite made of stretched film with Japanese paper pasted on both sides with an adhesive, either by itself or as a part of the constituent material.1.Strength is improved and there is no seam. Therefore, it is possible to provide an extremely superior paper for drawing foil that can be cut across the board, which is completely different from conventional paper for drawing foil, which can be handled from short sheets to long sheets without causing uneven seams and without the hassle of joining patterns. .

The stretched film (11), which is an essential constituent material in the cross-cuttable foil base paper of the present invention, has a thickness of, for example, usually in the range of 4 to 25 μm, more preferably 9
A synthetic resin film with a thickness in the range of about 12 μm, for example, a stretched film of polyethylene terephthalate, polyvinyl chloride, polyimide amide, polyamide, polyethylene, polypropylene, cellulose acetate, polycaponate, etc. is used. A film with a thickness of 25#L1 or more is not preferable because it becomes stiff and the texture is particularly impaired when made into a thread.A film with a thickness of 4μ or less is difficult to manufacture;
Not only does it tend to cause wrinkles and cracks during various processes, but it also does not contribute much to improving the strength of the paper in the lateral direction, so it is not practical.

As the Japanese paper (12) which is an essential constituent material in the cross-cuttable base paper for drawing foil of the present invention, for example, from the point of view of elegance and texture of the resulting base paper for drawing foil, paper kozo, mitsufuta, ganpi, Manila hemp, etc. are mainly used. The raw material used is Japanese paper.

The preferred Japanese paper (12) is a paper made from mifta, Manila hemp, etc. as the main raw material, and has a basis weight of up to 20 gets. In addition, if a special effect is desired, paper such as Kouzou, Mifta, Gan, etc. is preferably used. In addition to manila-hemp, etc., paper made from a mixture of other pulps, synthetic fibers, etc. is also used.

Adhesive ff1 (13) is used for laminating the stretched film (11) and Japanese paper (12). ! There are no particular restrictions on the adhesive layer Ii, and it may be formed of an adhesive that does not impair flexibility or texture in addition to adhesiveness. As such an adhesive, a polyester-isocyanate adhesive is most preferable.The lamination method is preferably carried out continuously using a roll method from the viewpoint of economy and productivity.
The thickness of 3) is usually selected from the range of 0.2 to 10 μs, more preferably from the range of 0.3 to 5 μs. Thickness is 0.2-
If it is less than 5 μs, a sufficient adhesive effect cannot be obtained, while if it exceeds 5 μs, the adhesive layer (13) will be too thick and the texture will be impaired, and the drying speed will also be slow, resulting in inefficiency. Moreover, it is not preferable because the original adhesive force cannot be obtained and problems such as solvent residue occur.

Next, the present invention will be explained with reference to Examples.

[Example] Example 1 Washi paper (basis weight 10 g/m') was pasted on both sides of a biaxially stretched polyethylene terephthalate film with a thickness of 12μ with a polyester isocyanate adhesive, and the adhesive was applied on both sides of the stretched film. A cross-cuttable base paper for drawing foil of the present invention was obtained, which was made of a composite material in which Japanese paper was laminated via a .

The transverse tensile strength of the obtained foil base paper that can be transversely cut is approximately 20 K.
g/d or higher, which was an improvement in lateral strength not seen in conventional products.

Example 2 Japanese paper (basis weight 20 g/rn') was pasted on both sides of a biaxially stretched polyethylene terephthalate film with a thickness of 25 μs using a polyester isocyanate adhesive, and the Japanese paper was attached to both sides of the stretched film via the adhesive. A cross-cuttable base paper for drawing foil of the present invention was obtained, which was made of a composite material laminated with the following.

The transverse tensile strength of the obtained base paper for drawing foil that can be transversely cut is approximately 20 K.
The lateral strength was improved by more than g/u', which is not seen in conventional products.

Example 3 A urethane resin filler layer and an epoxy isocyanate resin undercoat layer were sequentially formed on one side of the cross-cuttable foil base paper obtained in Example 1, and silver was vacuum-deposited thereon to form a silver vapor-deposited layer. A one-component urethane overcoat layer was formed thereon, and a continuous pattern 225c+a was drawn thereon to obtain a gold and silver foil original fabric. It was cut into 90 pieces in the transverse direction to obtain a cross-cut gold and silver thread.

Example 4 A urethane resin filler layer and an epoxy isocyanate resin undercoat layer were sequentially formed on both sides of the cross-cuttable foil base paper obtained in Example 2, and silver was vacuum deposited thereon to form a silver vapor deposited layer. A one-component urethane topcoat layer is formed on it, and a continuous pattern is applied on top of it to a length of 225 cm without matching the front and back sides.
I obtained a gold-silver foil original fabric with both front and back sides. horizontally 9
It was cut into 0 pieces to obtain cross-cut gold and silver thread.

Example 5 A urethane resin filler layer, a thermosetting acrylic resin undercoat layer,
A colored layer made of an epoxy isocyanate resin mixed with a colored pigment was sequentially formed, a one-component urethane overcoat layer was formed thereon, and a continuous pattern of 225 cm was drawn thereon to obtain a colored thread-pulled foil material. It was cut into 90 pieces in the transverse direction to obtain a cross-cut foil colored thread.

Example 6 A urethane resin filler layer, a thermosetting acrylic resin undercoat layer, and a colored layer made of an epoxy isocyanate resin mixed with a colored pigment were sequentially applied on both sides of the cross-cuttable foil base paper obtained in Example 2. A one-component urethane topcoat layer is formed on it, and a continuous pattern is applied on top of it without the need for front and back matching.
A 25 cm colored thread-pulled foil original fabric with a front and back pattern was obtained. It was cut into 90 pieces in the transverse direction to obtain a cross-cut foil colored thread.

Example 7 A metal vapor deposited layer was formed on one side of the cross-cuttable base paper for drawing foil obtained in Example 1 by a transfer method using a metallic foil (Sunlight Foil HLD manufactured by Oike Kogyo Co., Ltd.), and a layer of metal was deposited on it. A liquid urethane topcoat layer was formed, and a continuous pattern of 225 cm was drawn thereon to obtain a gold and silver foil original fabric. It was cut into 90 pieces in the transverse direction to obtain a cross-cut gold and silver thread.

Example 8 A urethane resin filler layer and a metallic pigment foil (
A metal pigment layer is formed by a transfer method using Sunlight Foil MPX (manufactured by Oike Kogyo Co., Ltd.), a one-component urethane topcoat layer is formed on top of it, and a continuous pattern is applied on top and front and back. While doing so, a 225 cm long gold and silver foil original fabric with a front and back pattern was obtained. It was cut into 90 pieces in the transverse direction to obtain a cross-cut gold and silver thread.

Example 8 A pigment layer was formed on both sides of the cross-cuttable base paper for drawing foil obtained in Example 2 by a transfer method using a urethane resin filler layer and pigment foil (Sunlight Foil WPx manufactured by Oike Kogyo Co., Ltd.). Then, a one-component urethane topcoat layer is formed on top of that, and a continuous pattern is applied on top of it with 225 cm without matching the front and back sides.
A gold and silver foil original fabric with cm drawing and front and back sides was obtained. It was cut into 90 pieces in the transverse direction to obtain a cross-cut foil colored thread.

[Effects of the Invention] The cross-cuttable foil base papers obtained in Examples 1 and 2 had sufficiently improved cross-direction strength, so that they could be micro-slit in the cross direction.

Therefore, when weaving into a belt, for example, only one short sheet of foil is needed, so there are no seams like in the past, so there is no need to make any special efforts to design the pattern, and there is no need to worry about joining the seams. is no longer needed.

Using the Hikihaku gold and silver yarns and Hikihaku colored yarns obtained using the cross-cuttable Hikihaku base papers obtained in Examples 3 to -8, the wefts were woven into a belt. Unprecedented in the past, the pictures were completely beautiful and continuous, and it was possible to use the same pattern on the original Hikihaku paper as a belt. Unlike conventional methods, seams can be easily created without the hassle, and there is no loss, and textiles can be woven in a variety of ways. Of course, the foil never broke during weaving.

[Brief explanation of the drawing]

FIG. 1 is a partially enlarged sectional view showing the structure of the cross-cuttable foil base paper of the present invention. (1): Base paper for drawing foil that can be cut across (11): Stretched film (12): Japanese paper (1 piece): Adhesive layer

Claims (1)

[Scope of Claims] 1. A base paper for drawing foil that can be cross-cutted, characterized in that it is made of a composite material in which Japanese paper is pasted on at least both sides of a stretched film via an adhesive. 2. The base paper for cross-cutting foil according to claim 1, wherein the stretched film is a biaxially stretched film.