JPS6234582A - Coloration of golf ball - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial field of application This invention involves printing and coloring the surface of a golf ball in advance using a sublimable dye, and then heating the surface of the golf ball.
This relates to a method for easily performing clear and solid penetrating coloring after the product has been made.

(B) Prior Art Printing and coloring of conventional golf balls is done using pigment ink during manufacture and before applying a final top clear coat.

Furthermore, even if the player attempts to print or color the player for identification before use, there is no suitable fast coloring method, and at most the player must use an oil-based marking pen.

(c) Problems to be solved by the invention Therefore, in terms of manufacturing, it is difficult to respond to the market demand for high-mix, low-volume processing, and management is complicated. Printing and coloring using an oil-based marking pen as described above has a disadvantage in that it cannot withstand repeated use due to its low abrasion fastness.

The present invention attempts to solve these problems by using sublimable dyes, but with the exception of one-piece golf balls, the surface layer of most commonly used golf balls is made of natural rubber, which has poor heat resistance. Since it is formed from a cover whose main component is a repellent resin, it is sensitive to heat and has a limit of approximately 110°C. The uppermost surface of each pole is coated with a urethane resin top clear coat.

On the other hand, the heat treatment conditions for sublimable dyes are as follows:
Treatment at relatively high temperatures of 30 to 120 seconds at 30 to 210 degrees Celsius for short periods of time is common, and it is true that similar or similar conditions are used in other applications as well. be.

B) Means for Solving the Problems As a means for solving the above problems, the present invention adopts a method of forming a colored layer containing a sublimable dye on the surface of a golf ball and then heating the layer. The heating conditions for sublimable dyes are unconventional, preferably 140
By treating the ball at a relatively low temperature below 110°C to 40°C for a relatively long time of 5 minutes or more, preferably 10 minutes or more and 72 hours, the ball can be made into a product without any damage. , which provides clear, transparent, and robust penetrating coloring.

As the sublimable dye, it is preferable to use one that sublimes at a relatively low temperature and can be obtained in high concentration, such as disperse dyes for acetate fibers or their powders, and those of any structure such as monoazo dyes and anthraquine dyes are also used. Ru.

Specifically, the following can be mentioned.

C1, 10345, 11855, 12790, 1108
0°11005, 11100. 60700. 11
Ko 10°60755.60505,62015.
]]]]5゜607]0,11250,6]100,6
]105°6]140,62030,64500,62
035°6]500,11855,6]55].

The colored layer is formed on the ball surface using ink or paint containing sublimable dyes such as those mentioned above, printing with a curved surface printing machine, foil stamping, hand painting using a marking pen, or coating with a brush. It is sufficient to color the print using the conventional method.

The ink or paint is prepared by dispersing or dissolving an appropriate amount (for example, 5% to 10% to vehicle) of the above dye (base powder) in water and/or an organic solvent, and milling with a common printing ink resin suitable for each solvent. For example, water-based resins include acrylic acid-based and maleic acid-based resins, solvent-based resins include rosin-based, phenol-based, alkyd-based, and cellulose-based resins, and solvents include alcohols, aromatic hydrocarbons, and ketones. Examples include.

As mentioned above, the heating conditions are a novel treatment method that requires a relatively low temperature and a long time.

(e) Effect: According to the above method, it is possible to easily obtain a solid colored product that is extremely clear and has strong abrasion resistance. This is because the heat treatment for a long time allows the color to penetrate into the inside of the top coat resin layer without damaging the part of the cover, which has weak heat resistance.

(f) Example Examples of the present invention will be described in detail below.

Example 1゜Preparation of ink C,1,Disverse Yellow 3 10g (C,1,
11!111855-Basic powder) Acrylic resin
8g (Hitaroido - Hitachi Chemical Co., Ltd.) Cellosolve acetate 50g00g A mixture of the above composition was treated with a paint conditioner for about 30 minutes using glass beads to prepare an ink.

11] Printing on the ball Using an intaglio printing machine (pad printing machine - manufactured by Taihei Kogyo Co., Ltd.), printing was carried out on the surface of the two-piece ball at a plate depth of 33 fine.

111) Heat Treatment The above-mentioned printed ball was placed in a hot air circulation type electrical opener under normal pressure and heated at 65° C. for 2 hours to obtain a bright and solid yellow colored product.

This colored material exhibits a transparency that is integrated with the ball and can withstand 15,000 times of friction in the eraser test.

Example 2゜υ Preparation of ink C,1, Disbirds Red 9 8g (C,1,
l'% 605'05) Water-based acrylic resin 92 g (Finetex - manufactured by Inu Nippon Ink Co., Ltd.)] 00 g A mixture of the above composition was treated with a paint conditioner for about 30 minutes using glass beads to prepare an ink.

11) Printing on the ball Using a small gravure printing machine, printing was performed on a polyester film at a plate depth of 25 μm, the transfer film was exploded, and then printing was performed on the surface of the one-piece ball using a stamping machine (manufactured by Taihei Kogyo Co., Ltd.).

111) Heat Treatment The above-mentioned printed ball was placed in a hot air circulation electric opener under normal pressure and heated at 120°C for 130 minutes to obtain a bright and solid red colored product.

This colored material exhibits a transparency that is integrated with the ball and can withstand 15,000 times of friction in the eraser test.

Example 3 Ink and marking table table C,! , Disbirds Blue 134. 10g(C,1
, 6] 551) Acrylic resin 8g (Hitaroido-Hitachi Chemical Co., Ltd.) Cellosolve acetate 50g Petroleum solvent
32□00g Using glass beads, treat the mixture of the above composition with a paint conditioner for about 30 minutes to obtain the original ink, add the same amount of a mixed solvent of 80% Kijirol and 20% normal butanol, and then make an ink. , acrylic fiber bundle core was injected and impregnated to explode oil-based marking pen.

11) Coloring the Ball Using the marking pen described above, the surface of the thread-wound ball was colored by hand.

111) Heat Treatment The colored ball was heated under normal pressure on a low-temperature electric heater at an ambient temperature of 70° C. for 1 hour and 30 minutes to obtain a bright and solid blue colored product.

This colored material exhibits a transparency that is one with the ball, and can withstand 15,000 times of friction.

(G) Effects of the Invention As described above, according to the present invention, it is possible to easily obtain a transparent, clear, and robust penetrating coloring material that is integrated with the golf ball after it has been made into a product. This makes it easier to respond to various print coloring requests and process control from a manufacturing standpoint, and it also enables players to create print coloring that is clear, solid, and reusable prior to use, which was previously impossible. In particular, clear and transparent coloring has not been previously achieved, and since the processing temperature is low, safety is high, and the present invention has great practical value.

Claims (1)

[Claims] (1) A method for coloring a golf ball, which comprises forming a colored layer containing a sublimable dye on the surface of the golf ball and then heating the ball.