JPH01188313A - Sheetlike matter where natural creasy pattern is formed - Google Patents

Abstract

PURPOSE:To obtain efficiently a product having solid feeling by forming natural creases or a pattern, by a method wherein creasing or patterning or shaping, which is not embossing processing, but natural, are given, and damage processing of the surface of the same at need are performed and the same is made a sheetlike matter through a mold release or transfer method. CONSTITUTION:A pattern such as breakage or damage or untying or a creasy state is formed on process paper or a film primary processing of a smooth and embossed surface of which has been performed is used for mold release or transfer by performing secondary processing, which is not mechanical embossment, but a vibration or beating or bending or crumping, by keeping the same as it is or performing pretreatment such as heating or moistening or cooling treatment. The surface of the process film or the paper is changed by keeping the same as it is or performing sanding or buffing or wearing as tertiary surface processing, a polymer solution is dried by performing spraying or curtain flow or cast coating to the same. A sheetlike matter where a natural creasy pattern has been formed is obtained by peeling off the polymer solution from the process paper or the film. The sheetlike matter where the natural creasy pattern has been formed is obtained by making use of a mold release base and adopting a coating device like this.

Description

[Detailed Description of the Invention] B) Industrial Applications Clothing, bags, bags, footwear, miscellaneous goods such as shoes, stationery such as cover cases, adhesive tapes, wall coverings, curtains, beds, chairs, etc. and materials used for industrial materials, etc.

(b) Conventional technology Conventionally, process papers or films used for mold release or transfer (also referred to as transfer) (hereinafter referred to as mold release base materials) are:
It was rigid and had a smooth surface or a design or pattern that was mechanically embossed.

A sheet-like product made by coating a polymer solution on top of this, drying it, and peeling it off has the state of its surface transferred thereto. However, this product is almost the same as one made by directly embossing a sheet material.

fj Problems to be solved by the invention The conventional ones are:
A variety of leather-like or geometric patterns are available, but the size, width, narrowness, etc. of the striations that make up the pattern vary.
Despite the complexity, natural breakage within the filament itself;
There are no disturbed, intertwined, or damaged parts, and (b) the thickness of the convex and bottom surfaces of the unevenness is even.
(C) Even if the appearance is matte or cloudy (dullness), the unevenness of the surface of the mold release material may be embossed with additives in the coating liquid. The coating itself is smooth.

Due to these factors, the product lacks a sense of naturalness, and although it has a diversified pattern, it is not a unique product.

(ii) Means for solving the problem) In order to give more diversity to the filaments that form the pattern, a release base material that is smooth or embossed (this is called primary processing) is used. Forces such as vibration, beating, bending, and rubbing (this is called secondary processing) are applied to the release material layer to cause structural changes in the base material of the release material layer, resulting in non-uniform changes in the state. (c) After primary processing or secondary processing, sanding, buffing, or abrasion is performed on the entire surface or partially as tertiary processing to improve the surface (release material surface). It is damaged and forms a frosted glass-like, cloud-like, cotton-like (cloudy and disordered state), or a fine line-like aggregated state, and is used as a matte mold release base material.

Since such a coating substrate becomes highly uneven due to the distorted acid, it is difficult to apply the polymer solution almost uniformly to a predetermined thickness.

Therefore, (d) spraying, curtain flow, or casting is used as a coating method to make the coating film uniform. On the other hand, (e) when the coating film is used with an average thickness, it is carried out using a coating means such as a knife or a coater that keeps the gap between coated parts constant.

By using the above-mentioned release base material and employing a coating method, it is possible to obtain a sheet-like product having a unique and natural wrinkled pattern.

2) Effects (a) Regarding release paper as a release base material, if a force is applied to the release base material for secondary processing, the release material layer itself, such as silicone coating or polyolefin film, may be damaged. However, the structure of the paper (or fabric) that forms the pace of change may be partially damaged, broken, loosened,
This causes separation, which affects the mold release material layer, forming subtle wrinkles in the pattern forming area from a microscopic perspective, and unlike embossing, from a macroscopic perspective, it spreads over the entire mold release base material.
Distortion with a large pitch is formed in many directions in the front, rear, left and right directions.

φ) In addition, when performing tertiary processing such as sanding, fine scratches in the shape of frosted glass will be created on the distorted acid part and other parts, which are not seen in fine pore squeezing. .

(c) When coating a mold release base material that has been subjected to secondary or secondary and tertiary processing to a uniform thickness, uniformly supplying the polymer solution by spraying, curtain flow, casting, etc. will reduce distortion. The coating is applied along the unevenness of the surface, resulting in a film or sheet of uniform thickness. On the other hand, (d) If a gap is created with a roll or plate and a knife or a roll-shaped coater, and the release substrate is passed through the gap and the polymer solution is supplied and operated, the coated surface becomes smooth, but The surface of the release base material follows the pattern, and a film or sheet with non-uniform thickness can be obtained.

(F) Examples Example 1゜A polyolefin film is laminated and embossed on process paper (120 multilayers/d>Release paper is subjected to moisture absorption treatment, and this is manufactured by Japanese Patent Publication No. 59-6953, Utility Model Publication No. 60-2059)
4 and Utility Model Application No. 60-20595.

In other words, the gripper is gripped with a gripper (a pair of rolls) between two points spaced apart by a predetermined distance, and the gap is narrowed, or a release paper is supplied between the gaps to create slack, and the gripper interval is adjusted. Then, the machine was operated and the gripping tool was swung or rotated in a direction intersecting the direction of movement of the release paper to carry out a creasing process to create wrinkles. Next, this release paper is subjected to secondary processing, and then tertiary processing is performed using an abrasion machine that rotates the sandpaper in one direction on a pair of rolls that can have a predetermined interval (thickness). The surface of the mold release material layer was abraded, and the top surface of the convex portion was abraded.

This release paper was flown through a coating dryer, and the colored polyurethane solution was flowed under pressure in a 1209/d curtain shape by adjusting the slit (gap) of the liquid reservoir as the first coater, and the multilayer 5°~ After drying at 120°C for 1 minute and cooling, a 2-component polyurethane solution was applied at 150°C in a second coater.
/ld curtain flow coated, thickness approximately 1. Otr
Wrap L-% of the raised fabric around the raised surface to create a thickness of approximately 1.0-FLf.
Laminate between rolls with FL gap, 95° to 100°
Dry at °C for 1 minute and 30 seconds, cool and roll up.

After aging by leaving this at 25° to 30° C. for 24 hours, the release paper is peeled off.

The top of the product made in this way is less glossy than the concave part, the wrinkles are formed by fine bundles of striations, branches, and interlacing, and the other parts have embossments from the base, with a subtle contrast. It has a natural appearance that can be said to be the result of kneading, which was not seen before.

Example 2゜ Release paper C approximately 150 coated with silicone on process paper
f/d) was wrinkled as in the example.

Add to this a lightly colored transparent vinyl plastic 22 (
1/y/ was coated using a roll coater, heated to gel at 145° to 150°C for 1 minute,
After cooling, coat with a 200f/d-1 coater using a 200 f/d-1 coater with a plastisol of a different or darker color than the previous coating solution, and heat it for 30 seconds at 1300-140°C, to a thickness of l.
・With a laminator adjusted to a gap of 5Qyam, 1.3
%? Laminated with PL thickness variable weave, 155°~1
It is passed through a dryer at 60''C for 1 minute and 20 seconds, cooled, and rolled up while peeling off the release paper.

The product has dark valleys, and wrinkles at the valleys and tops are fine and diverse with natural-looking deep and shallow differences, wide and narrow, and have a three-dimensional appearance.

The above is an example of implementation, but in the same way,
The films may be laminated to form a composite and may be made into a sheet.

When processing release paper, no pre-treatment is required, or if pre-treatment is performed, humidification, water supply, cooling, heating, etc. are performed to facilitate processing and to prevent damage, and then mechanical embossing is performed. Natural wrinkles or patterns are imparted through processes such as kneading, vibration, beating, and bending without embossing.

In addition, damage to surfaces that are not shaded or wrinkled may be done by sanding, buffing, abrasion, or the like. The processing may be performed before or after the process of wrinkles or patterning, or may be omitted.

Regarding raw materials and materials, release base materials include release papers,
Plastic films or sheets, or composites thereof, can be used, either with a smooth or embossed surface.

Coating raw materials include thermoplastic synthetic resins that can be coated on mold release substrates, such as emulsions, plastisols, FF/L solutions, and solvent-based solutions such as vinyl, acrylic, urethane, and polyamide. , polyester, and other synthetic resins can be used.

(g) Effects of the invention When processing a product that has already been made into a sheet-like product using the method of the present invention, some materials may not be able to be processed, and even if they can be processed, the surface will generally be damaged. damage.

Furthermore, since the product itself is flexible, it is difficult to leave permanent distortion and it is difficult to create a three-dimensional effect.

The method of the present invention does not have such drawbacks because permanent deformation is imparted to the sheet material by processing the release base material.

That is, by applying natural wrinkles, patterns, and shapes to the release base material without embossing, and if necessary, damaging the surface, and making it into a sheet-like product using a release or transfer method. , it is possible to form natural wrinkles or patterns that have not been seen before, and to efficiently obtain a product with a three-dimensional effect.

Claims (1)

[Claims] 1 Processing paper or film that has been subjected to primary processing with a smooth or patterned surface used for mold release or transfer, either as it is or after pretreatment such as heating, humidification, or cooling treatment, Secondary processing such as vibration, beating, bending, and rubbing other than mechanical embossing is applied to form a pattern that looks like breakage, damage, loosening, or wrinkles, and then sanding, buffing, abrasion, etc. are performed as is or as tertiary surface processing. A polymer solution is applied by spraying, curtain flow, or casting onto the surface-changed material, and after drying, this is peeled off from the release process paper or film to form a natural wrinkle pattern. sheet-like material. 2 Process paper or film for mold release is further subjected to secondary processing or tertiary processing other than mechanical embossing, coated with a polymer solution, laminated with a polymer or fiber sheet, or coated with a polymer solution. Naturally wrinkled according to claim 1, characterized in that the polymer or fiber sheet-like material is laminated as a multilayer by carrying out the step of drying multiple times, and this is peeled from a process paper or film for mold release. A sheet-like material with a pattern formed on it. 3 Process paper or film for mold release is further subjected to secondary processing or tertiary processing other than mechanical embossing, and then processed using a knife or roll coater etc. that can only be adjusted to a predetermined mechanical gap. , a sheet-like product coated with an uncolored or colored polymer solution to form thick and thin parts with a thickness corresponding to the wrinkle pattern, and constituted as a surface layer, an intermediate layer, or a lower layer of the sheet-like product. A sheet-like article formed with a natural wrinkle pattern according to claim 1.