JP2849898B2 - Phosphorescent paper and its manufacturing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel phosphorescent paper and a method for producing the same.

[0002]

2. Description of the Related Art Luminescent paper is one that stores light energy such as sunlight or electric light and emits light in the absence of light by the paper itself or a special material applied to the surface of the paper. The so-called luminescent agent as a luminescent material for this purpose is conventionally known, but the luminescent agent is a special substance, the particles of which are very coarse and are not dissolved at all in water, a common solvent, etc. Conventionally, it has not been possible to form a sheet-like phosphorescent material by uniformly coating the surface. Silk printing has been attempted using a suitable solvent, but only a thick and brittle layer of luminous agent can be formed, and the luminous agent layer peels off due to bending of paper, etc., and is suitable for use as a raw material. Nothing was obtained. Therefore, the phosphorescent pigment is only used as an actual product, not as a raw material, but is partially adhered. It has also been practiced to knead the luminous agent into, for example, vinyl chloride, and some luminous sheets have been obtained, but since it is practically a vinyl chloride sheet, it can only be adapted for use as a vinyl chloride sheet. .

[0003]

The conventional phosphorescent paper has no durability as a raw material, and the use of a vinyl chloride sheet containing a phosphorescent agent is extremely limited due to its printability and adhesiveness. The present invention provides a phosphorescent paper that can be applied to any use as a phosphorescent paper, just like ordinary paper, without relying on a vinyl chloride sheet, and further provides a method for manufacturing such a phosphorescent paper. The purpose is to provide.

[0004]

The luminous paper of the present invention comprises a high-quality paper as a base, which is provided with an AC coat layer, two luminous agent layers and an AC coat layer in that order on one surface, and is curled on the opposite surface. It has a coat layer. The AC coat layer is preferably made of a nitrifying cotton-based coating agent and thinner, the luminous agent layer is preferably made of luminous pigment, urethane tan and thinner, and the anti-curl coat layer is preferably made of rastergen FO and hot water. 3) parts by weight of a nitrified cotton-based coating agent, 3 parts by weight of a transparent (clear) nitrified cotton-based coating agent, thinner 2
It is preferable that the phosphorescent agent comprises 5 parts by weight of a luminous pigment, 5 parts by weight of urethane tank, and 2 parts by weight of a thinner, and the anti-curl coating agent comprises 1 part by weight of a rastergen FO and 50 parts by weight of warm water. The AC coating agent has an adhesion amount of 12 gwet / m ² , and the luminous agent has an adhesion amount of 80 wet / m2.
m ² (34 g / m ² after drying), and the amount of the anti-curl coating agent is preferably about ²⁰ g wet / m ² . The luminous paper is coated with an AC coating agent on one side of high quality paper, coated twice on the luminous agent with sufficient stirring, further coated with an AC coating agent on the luminous agent layer, and coated on the back of the high quality paper. Made by coating a de-curl coat layer. On the other hand, if the luminous agent layer is too thick, that is, if the amount of adhesion is too large, it tends to peel off, which is not preferable. In order to obtain a certain luminous effect, it is necessary that the luminous agent layer has a certain thickness or more. However, in the present invention, the luminous agent layer is divided into two portions and the luminous agent is sufficiently coated. This makes it possible to obtain a luminous paper having a luminous agent layer having a required thickness and not easily peeling by coating while stirring.

[0005]

EXAMPLE Using a gravure coater with a 150 mesh (line) mesh roll, an AC coating agent having the following composition was coated on one side of a 127.9 g / m ² high-quality paper roll having a width of 1,120 mm. Composition of AC coating agent White for CPN Tomoe (white / opaque) 3 parts by weight Medium for CPN Tomoe (transparent) 3 parts by weight Thinner (Sakueti: toluol = 5: 5) 2 parts by weight AC coating agent becomes 12 gwet / m ² Coated as follows.

[0006] The coated fine paper was dried by conventional means. The dried high-quality paper was coated on the AC coat layer with a luminous agent having the following composition using a gravure coater with a 40-mesh (line) mesh roll. Phosphorescent pigment composition Phosphorescent pigment 5 parts by weight Urethane clear 5 parts by weight Thinner (Sakueti: toluol = 5: 5) 2 parts by weight Gravure coater is made to stir the phosphorescent agent sufficiently and coat the phosphorescent agent as uniformly as possible. For this purpose, a roller was used which was in contact with the surface of the mesh roll and rotated together with the mesh roll.

The coated high-quality paper was dried in the same manner as described above, and further coated with a luminous agent and dried in the same manner. Luminescent agent is 80gwet / m in total
² (after drying, the amount of the phosphorescent pigment adhered was about 34 g / m ² ). Normally, it is preferable to make 40 gwet / m ² by one coating, but there may be some variation. Next, a curl-preventing coating agent having the following composition was applied to the back surface of the dried high-quality paper by using a gravure coater in the same manner as described above, with an adhesion amount of 20 gw.
et / m ² . Composition of anti-curl coating agent 1 part by weight of rastergen FO 50 parts by weight of warm water Fine wood coated with anti-curl coating agent is dried in the same manner as above.

After drying, the AC coating agent is coated on the luminous layer in exactly the same manner as the coating of the AC coating agent, and dried after coating. The luminous paper produced in this way is 127.9 g / m ² of high quality paper 1 with 12 g wet / m ² of the AC coat layer 2 and 80 g / m ^{2 of} the luminous agent layer 3.
m ² (34 g / m ² after drying), and the amount of the anti-curl coat layer 4 was 20 g / m ² . This phosphorescent paper, unlike phosphorescent papers that have been tried using a phosphorescent agent in the past, does not peel off the phosphorescent layer at all, and as a phosphorescent paper, does not hinder the same use as general paper materials. It was well tolerated.

[0009]

The phosphorescent paper of the present invention has never existed before, and has exactly the same printability, workability, and printability as ordinary paper materials.
It has elasticity and the like, can be used for various purposes, and can be manufactured at low cost. Further, the method for producing a phosphorescent paper according to the present invention enables the production of an excellent phosphorescent paper which could not be realized conventionally.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a phosphorescent paper of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fine paper 2 AC coating layer 3 Luminescent agent layer 4 Anti-curl coating agent layer 5 Luminescent paper

Claims (11)

(57) [Claims] 1. A luminous paper comprising a high-quality paper as a base, which is provided with an AC coat layer, two luminous agent layers, and an AC coat layer in that order on one surface and a curl-stop coating layer on the other surface. 2. The luminous paper according to claim 1, wherein the AC coat layer is composed of a nitrifying cotton-based coating agent and thinner, the luminous agent layer is composed of luminous pigment, urethane tan and thinner, and the anti-curl coat layer is composed of rastergen FO and hot water. 3. The phosphorescent paper according to claim 2, wherein the AC coating agent comprises 3 parts by weight of a white nitrified cotton-based coating agent, 3 parts by weight of a transparent nitrified cotton-based coating agent, and 2 parts by weight of a thinner. 4. The phosphorescent paper according to claim 2, wherein the phosphorescent agent comprises 5 parts by weight of a phosphorescent pigment, 5 parts by weight of urethane tank, and 2 parts by weight of a thinner. 5. The anti-curl coating agent is Rastagen FO.
3. The phosphorescent paper according to claim 2, comprising 1 part by weight and 50 parts by weight of hot water. 6. An adhesion amount of an AC coating agent of 12 gwet /
^2. The phosphorescent paper according to claim 1, wherein m ² , the adhesion amount of the phosphorescent agent is 80 gwet / m ² , and the adhesion amount of the anti-curl coating agent is 20 gwet / m ² . 7. One side of a high quality paper is coated with an AC coating agent, and a luminous agent is coated thereon twice with sufficient stirring of the luminous agent, and a back curl coating layer is coated on a back surface of the high quality paper, A method for manufacturing a phosphorescent paper, further comprising coating an AC coating agent on the phosphorescent agent layer. 8. The production of the phosphorescent paper according to claim 7, wherein the AC coat layer is composed of a nitrifying cotton-based coating agent and thinner, the phosphorescent agent layer is composed of a luminous pigment, urethane tank and thinner, and the anti-curl coat layer is composed of rastergen FO and hot water. Method. 9. The method for producing phosphorescent paper according to claim 8, wherein the AC coating agent comprises 3 parts by weight of a white nitrified cotton-based coating agent, 3 parts by weight of a transparent nitrified cotton-based coating agent, and 2 parts by weight of a thinner. 10. The method for producing a phosphorescent paper according to claim 8, wherein the phosphorescent agent comprises 5 parts by weight of a phosphorescent pigment, 5 parts by weight of urethane tank, and 2 parts by weight of a thinner. 11. The curling-preventing coating agent is Lustergen F.
9. The method for producing a phosphorescent paper according to claim 8, comprising 1 part by weight of O and 50 parts by weight of hot water.