JPS5981188A - Hot stamping foil - Google Patents

Abstract

PURPOSE:To obtain a hot stamping foil having good foil releasability of peel ply, by stepwisely laminating a peel ply composed, in a fixed proportional rate, of resin, oxypolyethylene and fillers on a base film. CONSTITUTION:The peel ply proportioned of 10-50pts.wt. resin (for example, acrylic resin and the like), 50-90pts.wt. oxypolyethylene of 1,000-4,000 average molecular weight, and 3-20pts.wt. fillers (for example, white carbon and the like), the intermediate layer composed of binder such as, for example, cellulosic series and the like, pigment and plasticizer, etc., and the bonding layer composed of binder such as, for example, ethylene and vinylacetate copolymer and the like, tackifier, plasticizer, pigment, etc. are stepwisely laminated on a base film (for example, polyethylene terephthalate film and the like). Thus, the aimed hot stamping foil can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to hot stamping foils.

In general, hot stamping foils are those in which a release layer, a release layer, an intermediate layer, a vapor deposition layer, and an adhesive layer are laminated in this order on a base film, or those that consist of a release layer, an intermediate layer, and an adhesive layer. Various types of adhesives are known, such as those consisting of a release layer and an adhesive layer, and those that also have a single layer of these layers.

The following material compositions are generally used for these base materials and each layer. The base film may be a film of polyethylene terephthalate, cellophane, nylon, etc., or paper waste. 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 appropriately added to these.

For the intermediate layer, a binder such as a cellulose resin, an acrylic resin, or a rosin is used in combination with a coloring material such as a pigment or a plasticizer. This intermediate layer is a colored layer for forming a printed image.

As the adhesive, a binder such as an ethylene/vinyl acetate copolymer, a polyamide resin, or an acrylic resin, and a tackifier, a plasticizer, a 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, there are generally the following: (b) Perform melt peeling using wax. i) Peeling is performed using a resin with good peelability during heat transfer from the base film.

However, method (a) transfers at high temperature and pressure, causes dusting in the print, and has difficulty in peeling off the foil, making it unsuitable for high-speed transfer (less than 1 second). (The dust phenomenon refers to a situation in which only the edge portions of the transferred image are transferred, and the center portion is not transferred at all or only incompletely, 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 two parallel line-shaped transferred images that look like rails. Become. ). Also, the transferred material was easily stained by rubbing.

(b) The foil separation is even worse than method (b). For this reason, fillers, plasticizers, etc. are added to the container, but there are limits.

The present invention provides a hot stamping foil in which a release layer, a conventional intermediate layer, and an adhesive layer are sequentially laminated on a base film, wherein the release layer contains a resin, a polyethylene oxide, and a filler; The hot stamping foil is characterized in that the proportions are 10 to 50 parts by weight of resin, 50 to 90 parts by weight of polyethylene oxide having an average molecular weight of 1000 to 4000, and 3 to 20 parts by weight of filler.

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

In the past, waxes were generally used as melts, emulsions, or dissolved in solvents. However, when it is melted, it has poor peelability, and when it is an emulsion, it is difficult to apply a film. Furthermore, the method of dissolving wax could only be used with a limited number of waxes.

The wax used in the present invention is dispersed in a bath additive. Therefore, it is necessary to be able to mechanically disperse it finely, and it is also required to have properties that do not weaken the adhesiveness with the intermediate layer. As a result of studying various waxes, we found that the average molecular weight was 100.
It has been found that polyethylene oxide having a molecular weight of 0 to 4000 is good.

Examples of the resin used in the present invention include acrylic resin, cellulose resin, and chlorinated rubber, but acrylic resin was good in terms of oil resistance.

The filler used in the present invention is used to eliminate dusting caused by wax during thermal transfer, and white carbon is preferable in order not to damage the color of the intermediate layer.

Example 1 A release layer consisting of: 82 parts by weight of toluene, 4 parts by weight of acrylic resin, 4 parts by weight of polyethylene oxide, 1311 parts by weight, and 978 parts by weight of Thyroid was prepared using a ball mill and coated on polynisdel film at a rate of 1.5 r/m. I worked on it.

Next, an intermediate layer consisting of 82 parts by weight of methanol and 6 parts by weight of acrylic resin was prepared using a ball mill, and a release layer of 3.5 parts by weight was prepared using a ball mill.
f/lr? It was painted to look like this.

Next, an adhesive layer (c) consisting of toluene 77 parts by weight ethylene/vinyl acetate copolymer 4 terpene phenol resin 9 barium sulfate lO was prepared using a ball mill, and 46 parts by weight was added to the above intermediate layer.
The film was coated so as to have 0 edges and transferred using a 1mm foil stamping machine. As a result, a good foil separation of 7t was obtained, and perfect transfer was obtained.

As a comparative example, instead of applying a release layer (2), OP wax (partially saponified ester wax) was applied to 1.5 f/- by swamp melting, resulting in poor foil release and a dusting phenomenon. .

Example 2 A release layer consisting of (e) 82 parts by weight of toluene, 4 parts by weight of chlorinated rubber, 13 parts by weight of polyethylene oxide, and 13 parts by weight of Aerosil II was prepared using a ball mill, and a polyester film was coated with 1.59/n? It was painted to look like this.

Next, an intermediate layer consisting of (to) M E K 82 parts by weight nitrocellulose 6 titanium oxide 12/1 was prepared using a ball mill, and a release layer was heated for 3.5 r.
/i.

Next, use the above (c) as an adhesive layer at 4.0r/W? It was coated on.

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, the release layer was replaced with (e) and (g).Toluene 80 parts by weight Chlorinated rubber
2o 〃 paint 1.5f/77? The foil was not easily removed and perfect 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. 191883 2
, Name of the invention Hot stamping foil 3, Relationship with the person making the amendment Patent applicant 4, Agent (Address 10: 3-2-3 Marunouchi, Chiyoda-ku, Tokyo)
Fuji Building 209 Room 5, subject of amendment (1) "
"Detailed Description of the Invention" Column (1) On page 5, line 9 of the specification, "film" is corrected to "film."

Claims (1)

[Claims] 1. A hot stamping foil in which a release layer, an intermediate layer, and an adhesive layer are sequentially laminated on a base film,
The release layer contains a resin, a polyethylene oxide, and a filler, and the blending ratio is 10-50 parts by weight of the resin and 50 to 50 parts by weight of polyethylene oxide having an average molecular weight of 1000-4000.
A hot stamping foil characterized in that it contains 90 parts by weight and 3 to 20 parts by weight of filler. 2. The hot stamping foil according to claim 1, wherein the resin is an acrylic resin, a cellulose resin, or a chlorinated rubber. 3. The hot stamping foil according to claim 1 or 2, wherein the filler is white carbon. 4. The hot stamping foil according to claim 1, 2 or 3, wherein the polyethylene oxide is dispersed in a solvent and used to form a release layer.