JPS5832705B2 - Nenseibutsushitsuo Hitsuyounaatsusanihitsuyounahirosadake Hirogelhouhou - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for spreading a viscous substance to a required thickness and to a required area. This is an extremely effective method for creating printing plates or coatings.

Conventionally, in order to make a laminate of a certain thickness from a viscous material, the viscous material was placed in a mold and pressed, or the material was made to a thickness greater than the required thickness, and the unnecessary parts were later scraped off. Various other methods have been adopted, but in order to change the thickness or width of the layer, the depth and size of the mold itself must be changed. This method is not satisfactory because it requires a lot of work and requires molds and devices of various depths and sizes to obtain the laminate.

In order to solve the above problems, the inventors of the present invention have conducted various research and found that it is possible to precisely spread a viscous substance to a constant thickness using an extremely simple device, and the thickness and width can be changed as necessary. They were able to successfully complete the method of the present invention.

That is, in the present invention, the discharge part of the packet is in contact with the protective film at the upper part of the protective film feed roll, and even if the packet is tilted upward from the discharge part, the surface area of the viscous substance within the packet is always constant. A packet is rotated and tilted upward at a predetermined angular velocity around the discharge part, and a certain amount of the viscous substance in the packet continuously overflows from the discharge part. A protective film that moves parallel to the level in a direction opposite to the position of the packet at a predetermined moving speed, and a base that moves in the same direction parallel to the protective film while maintaining a predetermined distance from the protective film above the protective film. The viscous material is moved in a sandwich-like manner with a predetermined interval maintained between the bases, and the viscous material is layered on the base to a predetermined thickness and spread to a predetermined width. This is about how to expand the area by as much as possible.

The method of the present invention is to pour a viscous substance into a packet, and after the level has stabilized, the viscous substance is laminated on the discharge side of the packet, with a protective film on the bottom and a base such as a cloth film on the top. The protective film is placed next to the protective film so that it can move parallel to the level of the substance, and the base is moved at a constant speed in the opposite direction to the position of the packet, and the viscous substance is discharged from the discharge part of the packet to remove the protective film. The viscous material is laminated on top to a certain thickness, and the base is adhered to the top surface of the protective film, forming a sandwich of the viscous material between the protective film and the base.

In this case, in order to layer the viscous substance to a precise thickness, the packet is tilted upward at a predetermined rotational angular velocity around the discharge part of the packet that supplies the viscous substance onto the protective film, and a constant amount of the viscous substance is continuously deposited on the protective film. This causes the viscous material to overflow from the packet outlet.

The angular velocity of this tilting must be adjusted depending on the viscosity of the viscous substance and the shape of the packet, but the angular velocity is adjusted so that a certain amount of the viscous substance necessary for lamination always overflows, and the viscous substance is deposited on the protective film. By supplying the viscous substance and simultaneously moving the protective film in a direction parallel to the level of the viscous substance in the packet according to the supplied amount, a laminate having a predetermined thickness and width can be obtained on the protective film.

In addition, the protective film is fixed without being moved, and the packet is moved parallel to the protective film at a constant speed, and the packet is tilted upward at a predetermined angular velocity around the discharge part to constantly supply a constant amount of viscous substance. Even if it is made to do so, a laminate having a predetermined thickness and width can be obtained.

Hereinafter, the method of the present invention will be explained in detail with reference to the drawings.

The drawings are explanatory diagrams showing one embodiment of the method of the present invention.

In the drawing, 1 is a packet for supplying a viscous substance, 2 is a protective film feed roll for moving the protective film 5,
3 is a base film feed roll provided above the protective film feed roll 2, and the distance between the base film feed roll 3 and the protective film feed roll 2 is adjustable.

Reference numeral 6 denotes a base made of a material such as cloth or film that can be coated with the viscous substance 4. This base 6 is moved by the base film feed roll 3 and is fed into the packet together with the protective film 5 while maintaining a predetermined distance from the protective film 5. The protective film 5 is moved at a predetermined speed in the same direction as the protective film 5, which is parallel to the level of the viscous substance 4 and opposite to the position of the packet 1.

Further, the packet 1 has a discharge part a at one end where the viscous substance 4 in the packet 1 overflows, and this discharge part a
is in contact with the protective film 5 at the upper part of the protective film feed roll 2, and the packet 1 is tilted upward at a predetermined rotational angular velocity around the discharge part a, and the shape of the basket 1 is inclined. However, the surface area of the internal viscous substance 4 is always constant.

In other words, as shown in the drawing, the shape of the packet 1 is an arc with the end opposite to the discharge part a equidistant from the discharge part a, and the length of the L surface connecting the two ends of the arc and the bottom surface are the same. Both side surfaces are vertical, so that even if the packet 1 is tilted upward about the discharge part a, the surface area of the viscous substance 4 is always kept constant.

7 and 10 are mirrors in the exposure zone when photosensitive resin is used as the viscous substance 4; 8 and 9 are mercury lamps; and 11 is a newspaper facsimile negative.

A method of the present invention for spreading the viscous substance 4 to a necessary thickness and a necessary width using such a packet 1 will be explained.

After pouring the viscous substance 4 into the packet 1, the viscous substance 4 does not overflow from the discharge part a and the discharge part a is in contact with the protective film 5, and then the protective film feed roll 2 and the base film feed roll 2 are prepared. Rotate the roll 3 and attach the protective film 5 and base 6 to the packet 1.
If the packet 1 is moved parallel to the level of the viscous substance 4 in the packet 1 at a predetermined distance in the direction opposite to the position of , a certain amount of viscous substance 4 continuously overflows from the discharge part a, and the packet 1 becomes in the state 1'.

The viscous substance 4 discharged from the discharge part a is laminated on the protective film 5 to a certain thickness, moves together with the protective film 5 in parallel to the level of the viscous substance 4 in the packet 1, and the upper surface adheres to the base 6. It moves in parallel while being sandwiched between the protective film 5 and the base 6.

In this case, since the surface area of the viscous substance 4 in the packet 1 is constant, a constant amount of the viscous substance 4 is always discharged as the packet 1 is tilted, and the protective film 5 and the base 6 move in parallel while maintaining a constant interval. Therefore, it is possible to spread the viscous substance 4 to a required area while laminating the viscous substance 4 to a precise thickness.

Moreover, when a more precise thickness is required, the accuracy of the thickness can be further improved by adjusting the distance between the protective film feed roll 2 and the base film feed roll 3.

In the method of the present invention, for example, when a photosensitive resin is used as the viscous substance 4 and a printing original plate is created, the photosensitive resin is sandwiched between a protective film 5 and a base 6 as shown in the drawing. A newspaper facsimile negative 11 is placed on the surface of the protective film 5 and exposed using mercury lamps 8 and 9.

By changing the angular velocity of packet 1, the method of the present invention
The amount of the viscous substance 4 that overflows from the discharge part a of the packet 1 can be changed, and the protective film 5 and the base are By adjusting the spacing and moving speed of 6, it is possible to easily adjust the thickness of the stack and easily spread it to the required thickness and width.

Furthermore, by stopping the rotation of the packet 1 that is tilted upward around the discharge part a, or by rotating it in the opposite direction, the discharge of the viscous substance 4 from the packet 1 can be completely stopped. It is possible to supply the viscous substance 4 in a sufficient amount.

As described in detail above, the method of the present invention is applied to the discharge part a of the packet 1.
A protective film 5 and a base 6 are tilted upward with the viscous substance 4 in the packet 1 continuously overflowing from the discharge part in a certain amount and move the viscous substance 4.
This is a method of obtaining a laminate of viscous substances 4 having a precise thickness in a sandwich-like manner and laminated to a constant thickness, and is particularly effective when creating a printing original plate from a liquid photosensitive resin. It can be used to create films and sheets used in other optical fields, or to be applied to sectors that require precise layer thickness, and can be used to achieve remarkable effects.Also, laminates can be easily obtained using a simple device. Furthermore, the layer thickness and width can be easily changed by adjusting the angular velocity of the packet 1, the distance between the protective film 5 and the base 6, and the moving speed. It has excellent advantages, and its industrial value is great.

The method of the present invention will be further explained below with reference to Examples.

Example A liquid photosensitive resin having a viscosity of 4,000 cps at 25°C consisting of 100 parts by weight of polyester obtained by polycondensation reaction of fumaric acid and diethylene glycol, 30 parts by weight of acrylic acid, and 0.5 parts by weight of benzoin was placed in packet 1. After that, as shown in the drawing, the packet 1 is leveled horizontally so that the discharge part a is in contact with the protective film 5,
The angular velocity of packet 1 is set to 0 by the motor cylinder mechanism with the discharge part a as the center so that packet 1 is in the state of 1'.
．． The protective film 5 and base 6
was moved at 100 rran/sec, and the resin was laminated on the protective film 5 to form the base 6 and the protective film 5.
By forming the resin into a sandwich shape, the thickness accuracy was improved between the protective film feed roll 2 and the base film feed roll 3.

In this way, the resin is sandwiched between the base 6 and the protective film 5 and fed into the exposure zone, and in this exposure zone, a newspaper facsimile negative 11 is placed on the surface of the protective film 5, and a 2KW mercury lamp 9 is heated from the base 6 side. 4KW mercury lamp 8 from newspaper facsimile negative 11 side for 30 seconds
was exposed to light for 30 seconds using two lights.

Thereafter, the newspaper facsimile negative 11 and the protective film 5 were removed, and the non-exposed areas were washed away with a 0.2 weight caustic soda aqueous solution to obtain a printing plate.

The accuracy of this printing plate was good, and the thickness was accurate to 0.5±100 mm.

[Brief explanation of the drawing]

The drawings are explanatory diagrams showing one embodiment of the method of the present invention. 1.1'... Packet, 2... Roll for protective film feed, 3... Roll for base film feed, 4... Viscous substance, 5...・
...Protective film, 6...Base, 7.1
0...Mirror 8,9...Mercury lamp, 1
1...Newspaper facsimile negative, a...
Discharge part.

Claims (1)

[Claims] 1 A packet in which the discharge part of the packet is in contact with the protective film at the upper part of the protective film feed roll, and the surface area of the viscous substance within the packet is always constant even if the packet is tilted upward from the discharge part. , the viscous substance in the packet is rotated and tilted upward at a predetermined angular velocity around the discharge part, so that a certain amount of the viscous substance in the packet continuously overflows from the discharge part, and the overflowed viscous substance is parallel to the level of the viscous substance in the packet. between a protective film that moves at a predetermined moving speed in the opposite direction to the packet position, and a base that moves in the same direction parallel to the protective film while maintaining a predetermined distance above the protective film. The viscous material is moved in a sandwich-like manner while maintaining the interval of , and the viscous material is layered on the base to a predetermined thickness and spread to a predetermined width. How to expand only.