JPS58183285A - Transfer foil for golf ball - Google Patents

Abstract

PURPOSE:To make it possible to transfer a multicolored precise picture pattern by one hot stamping, by forming an ink layer consisting of specific resin containing a colorant, a PE powder, a filler, a plasticizer and a surfactant and a nitrocellulose on a PP film. CONSTITUTION:By an ink prepared by dissolving or dispersing resin selected from polyamide resin, hard resin, acrylic resin, polyester resin and urethane resin and nitrocellulose as main resins, a pigment or a dye as a colorant and a polyethylene powder, a filler, a plasticizer and a surfactant as additives in an org. solvent, a desired ink layer is formed on a polypropylene film. In this case, a transfer foil fabricated by using vinyl resin or acrylic resin containing no nitrocellulose as main resin in place of main resin consisting of the aforementioned resin selected from polyamide resin, hard resin, acrylic resin, polyester resin and urethane resin and nitrocellulose can be used as a similar one.

Description

[Detailed description of the invention] It is related to photo foil.

Conventional methods for painting golf poles include the direct part-u method using tacho printing, etc., and stamping using a solid printing foil with a solid ink layer formed on the entire surface of the foil and heating it from the back side. As disclosed in JP-A No. 53-65157, printing is carried out using a transfer foil on which a transfer ink layer of an arbitrary pattern is formed on an arbitrary film. Thermal transfer printing methods are known.

However, when applying multicolor patterns to golf poles, the tacho printing method requires curing the ink for each color, which is extremely inefficient, and the method using peta stamping foil requires special stamp equipment for multicolor printing. Most of the ink required and printed on the peta printing foil is discarded without being used, so it has drawbacks such as high cost. Furthermore,
The transfer foil disclosed in Japanese Unexamined Patent Publication No. 53-63137 also has the following drawbacks.

In other words, when screen printing is used to form arbitrary patterns on a film, the ink dries slowly, which tends to cause problems such as blocking, and the printing method itself is inefficient, making transfer foil expensive. Furthermore, when the gravure printing method 11 is used, the outline of the ink layer is not sharp and a so-called "swimming" phenomenon is observed, so that it is not fully satisfactory as a transfer foil.

Furthermore, in order to improve the transferability of many of these conventional transfer foils, a release varnish is applied onto the film, a desired pattern is printed on this, and then an adhesive varnish is applied. Yumata, 1st place = 7゜Izuwaka, on the other hand? Transfer foils with such a configuration may cause the release varnish to inhibit adhesion between the top coat and the ink layer, cause burrs to form in the release varnish or adhesive varnish, or cause yellowing of the adhesive varnish. It has the disadvantages that it is extremely difficult to select materials, and that it increases the number of man-hours and materials, resulting in high costs. Moreover, when such a transfer foil is used for transfer, the transfer performance is extremely poor when the paint applied to the surface of the golf ball, which is the object to be transferred, has progressed to hardening. It was difficult to select the material and shape of the silicone pad for applying pressure from the back side, and in order to ensure that the ink layer adhered to the golf ball sufficiently, if pressure was applied at high temperatures for a long period of time, the outer skin of the golf ball would become distorted. It has drawbacks.

As a result of intensive research to improve the shortcomings of the conventional method described above, the inventors of the present invention have developed a method that can transfer elaborate designs in multiple colors in a single hot stamping process, and has sufficiently considered physical properties to withstand harsh usage conditions. Succeeded in developing transfer foil and received a patent application in 1982.
It has been filed as No.-145507. That is, this invention forms an ink layer on a polypropylene film without using a release varnish or an adhesive, and in particular an ink composition that has release properties and transferability and has sufficient necessary physical properties. The main resin is nitrified cotton or alkyd resin, and the colorant is a pigment or dye, and the additives are polyethylene powder, a plasticizer, and a surfactant dissolved or dispersed in an organic solvent. This transfer foil for golf balls is made by forming a desired ink layer on a polypropylene film using ink.

Although this transfer foil eliminates the drawbacks of the conventional method mentioned above,
This method had the following problems in terms of productivity. In other words, when transferring, a high temperature condition of 180°C is required, so when transferring to a large area, the film tends to have shrinkage wrinkles, causing deformation of the ink image, and when applying a clear top coat to the surface of the golf pole after transfer. This had the disadvantage that the ink layer transferred to the top coat solvent was immersed and ran, resulting in loss of clarity of the ink image.

The present invention eliminates these drawbacks of the conventional method and Japanese Patent Application No. 145507/1982. That is, the present invention uses a resin selected from polyamide resin, no-resin, acrylic resin, polyester resin, and urethane resin as the main resin and nitrified cotton, a pigment or dye as a coloring agent, and polyethylene powder and extender pigment as additives. , an ink made by dissolving or dispersing a plasticizer and a surfactant in an organic solvent,
This is a transfer foil for golf balls, which is made by forming a desired ink layer on a polypropylene film.

In addition, as an alternative method of the present invention, instead of using a resin selected from the aforementioned polyamide resin, hard resin, acrylic resin, polyester resin, and urethane resin and nitrified cotton as the main resin, a vinyl resin that does not contain nitrified cotton or A transfer foil made of acrylic resin as the main resin can also be used in a similar manner.

Here, the film that is the carrier of the ink layer used in the present invention does not only support the ink layer, but also has characteristics that allow the ink layer to be completely transferred to a unique site such as the dimple portion of the golf ball. The ink layer formed by the special ink composition described later must have characteristics that allow the ink layer to be completely released during transfer.

According to the results of tests conducted on polyethylene film, polypropylene film, polyester film, polyamide film, vinyl chloride film, and cellophane film as films that meet the above conditions, polypropylene film showed the best results. This result is very interesting in view of the fact that polyester films and cellophane films are actually commonly used in this field.

The ink used in the present invention has a resin selected from polyamide resin, hard resin, acrylic resin, polyester resin, and urethane resin and nitrified cotton as the main resin components,
Or, containing vinyl resin or acrylic resin as the main resin component and heating, EE&C,i')・47
*N' is '*Y7bQK·10-0. These main resin components are softened and have tackiness, which causes them to adhere to the surface of the golf ball, which is the object to be transferred.

The pigment used as a coloring agent, that is, a coloring agent, is required to have light resistance since the golf ball, which is the object to be transferred, is used outdoors, so a high grade pigment is used. You could also use dye.

The polyethylene powder as an additive is added to prevent blocking of the ink layer and improve the abrasion resistance, and the plasticizer is used because the main resin is a relatively hard resin, and the plasticizer is used to prevent the ink layer from being transferred to the golf pole. Because the ink layer tends to crack due to strong impact when hitting the ball, it is added to prevent cracks.

Furthermore, surfactants are added as dispersants to uniformly disperse insoluble substances such as pigments and polyethylene powders in organic solvents, and extender pigments are used when forming ink images on polypropylene films. Added to improve ink cutting from the plate.

Because the transfer foil for golf poles of the present invention has the above-described structure, it not only has superior transfer performance to a transferred object including dimpled portions compared to conventional transfer foils, but also has superior transfer performance to transferred ink. Since the layer has excellent physical properties such as light resistance, abrasion resistance, and crack resistance, it is truly suitable as a transfer foil for golf poles that are exposed to strong light and impact.

Moreover, compared to the transfer foil disclosed in Japanese Patent Application No. 55-145507, it is possible to transfer at a lower temperature of about 160°C, and there is no wrinkles in the film during transfer. The practical effects of the present invention are great, such as there being no ink bleed even when printing is applied, and more precise transfer is possible.

The present invention will be explained in more detail below with reference to Examples.

Example 1 [Preparation of transfer foil] A transfer foil was prepared by printing a pattern on a 20 μm biaxially stretched polypropylene film by gravure printing using the following ink compositions 111 to 11.

(11 Ink (1) 10 parts by weight of nitrified cotton, 4.5 parts by weight of polyamide resin, 10 parts by weight of carbon black, 3 parts by weight of fine silica powder, 5 parts by weight of plasticizer (phthalic acid), 1 part by weight or less of polyethylene powder trace amount of surfactant (nonionic), trace amount of 1 part by weight or less, mixed solvent (toluene/inopropyl alcohol/
Ethyl acetate = 6/1/1) 67 parts by weight (2) Ink (2) 7 parts by weight of nitrified cotton, 6 parts by weight of urethane resin, 10 parts by weight of carbon black, 3 parts by weight of plasticizer (phthalic acid), polyethylene powder Trace amount of 1 part by weight or less, surfactant (nonionic) trace amount of 1 part by weight or less, mixed solvent (isopropyl alcohol/toluene/methyl ethyl ketone = 3/4/3
) 77 parts by weight (3) Ink (3) 10 parts by weight of nitrified cotton, 5 parts by weight of ester gum, trace amounts of less than 1 part by weight for both can-based), 72 parts by weight of mixed solvent (ethyl acetate/Toluev = 50150) (4) Ink (4) 10 parts by weight of nitrified NA, 3 parts by weight of polyester resin, polyazo pigment (Cj, Nopigment Red 14)
4) 12 parts by weight, a trace amount of 1 part by weight or less of polyethylene powder, 3 parts by weight of a plasticizer (phthalic acid type), a trace amount of 1 part or less of a surfactant (nonionic type), a mixed solvent (Improvil alcohol/toluene) /Methyl ethyl ketone = 5/
415) 72 parts by weight (5) Ink (5) 15 parts by weight of salt-vinyl acetate copolymer, 9 parts by weight of polyazo type pr (same as above), 1 part by weight of polyethylene powder, 5 parts by weight of precipitated barium sulfate, plasticizer (same as above) ), surfactant (same as above) in a trace amount of 1 part by weight or less, mixed solvent (methyl ethyl ketone/toluene = 5o150) 70 parts by weight (6) Ink (6) 7. Nitrified cotton 10 parts by weight, ester gum 5 parts by weight,
Dye (C11, NoDisperse Blue)
19) 7 parts by weight, 5 parts by weight of plasticizer (same as above), trace amounts of less than 1 part by weight of both polyethylene powder and surfactant (same as above), mixed solvent (ethyl acetate/toluene = 50150)
75 parts by weight (7) Ink (7) 10 parts by weight of nitrified cotton, 3 parts by weight of acrylic resin, 10 parts by weight of carbon blank (pigment), a trace amount of 1 part by weight or less of polyethylene powder, 3 parts by weight of plasticizer (phthalic acid) parts by weight, trace amounts of 1 part by weight or less of surfactants (nonionic), mixed solvents (toluene/isoglobil alcohol/ethyl acetate = 615
/1) 74 parts by weight (8) Ink (8) 10 parts by weight of acrylic resin, polyazo pigment (same as above) 11
parts by weight, 3 parts by weight of plasticizer (same as above), polyethylene powder,
A trace amount of less than 1 part by weight of both the surfactant (same as above) and 7.4 parts by weight of a mixed solvent (ethyl acetate/toluene = 50750) Example 2 White urethane paint (two-component reaction After applying heat-drying urethane paint for golf balls and drying and curing at 3'6℃ for 20 hours,
Silicone rubber (thickness 3W) heated to 160' cvc
A transfer foil prepared using ink (1) was transferred by pressing for 1 second using a cylindrical concave surface with a radius of curvature of 4OW.

Next, a transparent urethane paint (a two-component heat-dried golf ball urethane paint) was applied and dried and cured at 56° C. for 48 hours to obtain a decorated golf ball.

The following tests were conducted on the painted golf pole.

First, in order to confirm the transferability of the transfer foil, it was determined by visual observation whether the printed pattern, ie, the ink layer, was completely transferred to the golf ball. Furthermore, it was determined by visual observation whether the pattern transferred to the golf ball was beautifully transferred. Finally, an impact test and abrasion test were conducted to examine the physical properties of the design. The impact test was conducted by repeatedly colliding with a steel plate at a speed of 45 m/sec, similar to a golf pole, 50 times, and the degree of damage such as peeling of the pattern was determined by visual observation, and the impact resistance was determined. In addition, the abrasion test was performed by strongly spraying water and sand on the golf ball surface after the impact test for 5 minutes, and the degree of damage such as peeling and abrasion of the pattern was then determined by visual observation.
Abrasion resistant.

As a result, this product had good transferability, good appearance of the transferred picture, and good impact resistance and abrasion resistance.

Example 6 A test was carried out in the same manner as in Example 2, except that a golf ball whose outer shell was mainly made of ionomer resin was used. The results were similar to Example 2.

Example 4 Except for using a transfer foil created using ink (2),
It was carried out in the same manner as in Example 3, and the results were also the same.

Example 5 The same procedure as in Example 2 was carried out except that transfer foils prepared using inks (3) and (4) were used, and the results were also the same.

Example 6 Except for using a transfer foil made using ink (5),
The same -Vc experiment as in experiment flI 5 was carried out, and the results were also the same.

Example 2 was carried out in the same manner as in Example 2, except that a transfer foil prepared using Example Fink (6) was used, and the results were also the same.

Example 8 The same procedure as in Example 3 was carried out except that a transfer foil prepared using ink (7) was used, and the results were also the same.

Example (9) Example 2 was carried out in the same manner as in Example 2, except that transfer foils prepared using inks (7) and (8) were used, and the results were also the same.

Patent applicant Toppan Printing Co., Ltd.

Claims (1)

[Claims] +11 polyamide resin, hard resin, acrylic resin,
The main resins are polyester resin and urethane [resin selected from resin and nitrified cotton, pigment or dye weight is used as a coloring agent, and polyethylene powder, extender pigment, plasticizer, and tatami surface activator are used as an organic solvent as additives. A transfer foil for golf balls that forms a desired ink layer on a polypropylene film using dissolved or dispersed ink. (2) An ink made of vinyl resin as the main resin, pigments or dyes as colorants, and polyethylene powder, extender pigments, plasticizers, and surfactants as additives dissolved or dispersed in an organic solvent is used to coat polypropylene films. A transfer foil for golf balls formed with a desired ink layer. (3) An ink consisting of an acrylic resin as the main resin, a pigment or dye as a coloring agent, and polyethylene powder, 1 dormant pigment, a plasticizer, and a surfactant as additives dissolved or dispersed in an organic solvent is used to coat a polypropylene film. A transfer foil for golf balls formed with a desired ink layer.