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Method for dyeing golf balls and dyed golf balls

a golf ball and golf ball technology, applied in the dyeing process, solid balls, sport equipment, etc., can solve the problems of high cost of golf balls with customized pigments, limited customization of golf balls, and significant cos

Inactive Publication Date: 2014-09-11
NIKE INTERNATIONAL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent is about a new method for dyeing golf balls using special dyes and soluble ammonium salts. The method allows for the creation of golf balls with customized pigment-colored covers, and also allows for the easy removal and reuse of any excess cover material. In addition, the method allows for the creation of golf balls with different colored cores and inner layers, while still maintaining the desired pigment-colored cover. The use of this method provides deeper, richer colors and better colorfastness, and avoids the need for expensive or difficult customization methods.

Problems solved by technology

Generally, customization of golf balls is limited to printing desired words, logos, or designs on balls.
It is expensive to produce golf balls with customized pigment-colored covers in short runs, and the differently colored covers prevents scrap cover material from being reused for other balls, although this may sometimes be done.
Most of the pigment included is unnecessary and, depending on the pigment, may add significant expense.

Method used

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  • Method for dyeing golf balls and dyed golf balls
  • Method for dyeing golf balls and dyed golf balls

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0091]A dye solution was prepared by dissolving Luminous Yellow 8G FF (obtained from Zenith Chemical Industries Limited) at a concentration of 0.2 g / liter in a solution of 75% by weight deionized water and 25% by weight n-propanol to produce a fluorescent color. Commerically available golf balls with a thermoplastic polyurethane cover (20XI, from Nike, Inc.), both coated with a clear two-part polyurethane coating and uncoated, were processed as follows:

[0092]Process 1: dye solution temperature 40° C., dye time 3 minutes;

[0093]Process 2: dye solution temperature 40° C., dye time 10 minutes;

[0094]Process 3: dye solution temperature 70° C., dye time 3 minutes;

[0095]Process 4: dye solution temperature 70° C., dye time 10 minutes. The processing variable are depicted in Table 1.

TABLE 1Dye solution temperature40° C.70° C.Dyeing time 3 minutesProcess 1Process 310 minutesProcess 2Process 4

[0096]Dye penetration in the dyed balls is recorded in Table 2.

TABLE 2Dye penetration average,micromete...

example 2

[0097]An uncoated commerically available golf ball with a thermoplastic polyurethane cover (20XI, from Nike, Inc.) was dyed in a solution containing a purple acid dye using Process 4 conditions as described in Example 1. Dye penetration was measured as 56 micrometers.

example 3

[0098]Commerically available golf balls with a thermoplastic polyurethane cover (20XI, from Nike, Inc.) were coated with a clear two-part polyurethane coating and then dyed by Process 4 as described in Example 1. The following variables were measured before and after the dyeing process:

1) Diameter measured in mm and established by measuring ball diameter in 5 places and averaging.

2) Weight measured in grams.

3) Surface hardness measured with JIS-C durometer-type gauge.

4) Ball compression measured as mm deflection between a load of 10 kg 130 kg and the deflection recorded in mm where the 10 kg load is 0.00 mm deflection and at a load of 130 kg using an ADC Compression Tester.

5) Coefficient of restitution COR) measured by shooting the ball through a pneumatic cannon (manufactured by ADC) at 125 ft / sec and dividing the in-bound or return velocity by the outbound or initial velocity, expressed as a decimal which represents % rebound. The measurements are shown in Table 3.

TABLE 3One month...

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Abstract

A golf ball of a first color is dyed to a second color with an anionic or nonionic disperse dye. Either or both of the cover or an optional clear coating layer on the cover comprises a member selected from the group consisting of polyurethanes, polyureas, polyamides, and combinations thereof, which can be dyed by the anionic or nonionic disperse dye.

Description

FIELD OF THE INVENTION[0001]The invention is related to methods of dyeing golf balls and to the dyed golf balls produced by those methods.INTRODUCTION TO THE DISCLOSURE[0002]This section provides background information related to this disclosure but which may or may not be prior art.[0003]Zhao et al., U.S. Pat. Nos. 5,938,828 and 5,948,152 disclose complexes of anionic organic dyes with quaternary ammonium compounds, particularly with alkoxylated moieties. Unwanted salts formed from the cations of the dye and counter-ions are removed to obtain a dyeing agent that easily disperses within different media and possesses favorable non-migration and coloring characteristics. The examples disclosed include a complex of acid red with dicoco dimethyl ammonium chloride; a complex of direct blue with ditallow dimethyl ammonium chloride; and complexes of direct blue, acid red, acid yellow, and quinoline yellow with methyl bis[polyethoxy (15) ethanol] coco ammonium chloride.[0004]Various patents...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A63B37/00A63B45/00
CPCA63B45/00A63B37/0022A63B37/0074A63B37/0024A63B37/0027A63B37/0075C09D175/04C08L77/00A63B37/00223
Inventor TUTMARK, BRADLEY C.SCHOBORG, ANNACHANG, YIHUA
Owner NIKE INTERNATIONAL LTD
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