JPS5981187A - Hot stamping foil having chalking peel ply - Google Patents

Abstract

PURPOSE:To obtain a hot stamping foil having efficient releasability, by stepwisely laminating a chalking peel ply composed of not less than one class among acrylic resin, cellulosic resin, styrene maleic anhydride resin group and of pigment and a glue line on a base film. CONSTITUTION:The peel ply where not less than one class selected amoung acrylic resin, cellulosic resin, styrene maleic anhydride resin and pigment and the like are chalked by resin brushing and the glue line composed of binder such as, for example, polyamide resin and the like, tackifier, plasticizer, pigment, etc. are stepwisely laminated on a base film (for example, polyethylene terephthalic film and the like). Thus, the aimed hot stamping foil can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hot stamping foil with a whitening release layer.

Generally, hot stamping foil consists of a base film, a release layer, a peeling layer, an intermediate layer, a vapor deposition layer, and an adhesive layer.
Various types of materials are known, including those that are laminated with layers, those that consist of a release layer, an intermediate layer, and an adhesive layer, those that consist of a release layer and an adhesive layer, and those that have a single layer of these layers. There is.

The following material compositions are generally used for these base materials and each layer. Examples of the base film include films such as polyethylene terephthalate, cellophane, and nylon, and paper. The release layer is generally made of wax, rosin, acrylic resin, cellulose resin, chlorinated rubber,
Maleic acid resin or the like is used.

In addition, pigments, plasticizers, etc. may be added as appropriate.

For the intermediate layer, a combination of bisider such as cellulose a fat, acrylic resin, rosin, pigment, OT plastic agent, etc. is used.

As the adhesive, a binder such as ethylene, vinyl acetate copolymer, polyamide resin, acrylic resin, etc., and a tackifier, plasticizer, pigment, etc. are added as appropriate.

The transfer film thus obtained is heated and pressed using a foil stamping machine or the like to transfer the coating resin layer, but at this time it is required to be easily separated from the base film.

More specifically, regarding the release layer, the cohesive force of the layer itself and the adhesive force with the base film greatly influence the release of the foil. Therefore, in general there are: (b) Perform melt peeling using wax. (2) Peeling is performed using a resin with good peelability during heat transfer from the base film.

However, method (a) causes a dusting phenomenon in the prints transferred at high temperature and pressure, and the foil separation is also poor, making it unsuitable for high-speed transfer (less than 1 second). (The dust phenomenon refers to a state in which only the edge portions of a transferred image are transferred, and the center portion is not transferred or is only incompletely transferred, resulting in a state where the center portion appears to be blank.

When the transferred image is a character, for example, the central band of one line of the stroke is removed and only the edges of both edges are transferred, creating a transferred image in the form of two parallel lines, making it look like a rail. become. ). Also, the transferred material was easily rubbed and stained.

(Ol's method has even worse foil separation than (a). For this reason, fillers and plasticizers are added to it, but they have reached their limits.

The hot stamping foil of the present invention has a release layer and an adhesive layer laminated in sequence on a base film, and the release layer is at least one selected from the group consisting of an acrylic resin, a cellulose resin, and a styrene/anhydride resin. It is characterized by being in a white state, consisting of one type of pigment and a pigment.

In the hot stamping foil of the present invention, the peeling layer of the hot stamping foil has good release properties.

The release layer of the present invention can be formed, for example, by resin brushing. Resin brushing is a phenomenon in which the evaporation of the solvent is unbalanced, and as the evaporation progresses, the ability of the remaining solvent to dissolve the resin decreases, the resin precipitates, and the film becomes white. - For example, a paint consisting of a pigment, a resin, and a solvent that is a good solvent for the resin, and a solvent that is a non-solvent for the resin and dries worse than the solvent.
By drying, the resin is whitened and a peeling layer that can be easily separated from the base film can be obtained.

Next, examples of the present invention will be shown.

EXAMPLE A release layer consisting of the following was prepared using a ball mill and coated on a polyester film in five coats.

Next, an adhesive was made using a ball mill, and 5V was applied to the release layer.
I painted it on my enemy.

Transfer was performed using a foil stamping machine, and the result showed good foil release5, and complete transfer was obtained.

As a comparative example, a foil made of a peeling layer (a) in which water was replaced with methanol had poor peeling (complete transfer could not be obtained).

Example 2 A release layer consisting of 5 f/lf? was prepared using a ball mill and coated on a polyester film. It was painted to look like this.

Then, the above (/9) was coated at 5 f/n? as an adhesive layer.

The transfer was performed using a foil stamping machine, and the foil showed good release and a perfect transfer was obtained.

As a comparative example, a foil made of a release layer (/) in which water was replaced with MEKK had difficulty in peeling off the foil, and complete transfer could not be obtained.

Example 3 A release layer of 59/lt? was prepared using a ball mill and coated on a polyester film. ' It was coated to look like this.

Next, an adhesive consisting of 512
Painted with hawk.

Transfer was performed using a foil stamping machine, and as a result, good foil release was observed and complete transfer was obtained.

For comparison, a foil made of a material in which water was replaced with ethyl acetate (as a release layer) had poor peeling (complete transfer could not be obtained).

Procedural amendment January 28, 1980 Kazuo Wakasugi, Commissioner of the Patent Office 1, Indication of the case 1981 Patent Application No. 191881 2
, Name of the invention Hot stamping foil with whitening peeling layer 3, Relationship with the amended case Patent applicant 4, Agent (Address 10: 3-2-3 Marunouchi, Chiyoda-ku, Tokyo)
Fuji Building 209 Room 5, subject of amendment (1) "
Column 6 of "Detailed Description of the Invention" Contents of the Amendment As shown in the attached sheet (1) "Ethylene, acetic acid" in line 14 of page 2 of the specification is corrected to "ethylene acetic acid."

(2) Same as above, page 7, line 6

Claims (1)

[Claims] In a hot stamping foil in which a release layer and an adhesive layer are sequentially laminated on a base film, the release layer contains at least one selected from the group consisting of acrylic resin, cellulose resin, and styrene/maleic anhydride resin and a pigment. A hot stamping foil characterized by being in a whitened state.