JPS59144465A - Surrface treatment 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] The present invention relates to a method for surface treatment of golf balls.

As is well known, golf balls include solid single-layer balls, two-piece balls with a solid core covered with a skin made of balata resin or thermoplastic resin, and thread-wound balls with a thread-wound core covered with a skin similar to the above-mentioned skin. It is °C. These -r 7 balls G, someday face 4': 1 bane (- and chestnut 7-be, in 1
~ b'1 painted (there is. This surface painting is Stan 1
If the characters, numbers, 7-ta, etc. are 1:'j and glossy, the 1-C entry of the introduction of the perspective is the result (] only.
Reduce air resistance and improve golf ball flight ability
9. The catfish I Jha, the rest is for the sake of throat. For this painting, urekun-based paint with excellent adhesion is usually used, but the surface of the molded product is simply coated with the above paint.
1. The VPj impact peeling resistance, which can withstand 11" of intense impact, cannot be applied to the golf knob. 1.
For this reason, various C-1 Table F#7 processing power methods have been tried for the purpose of removing the white clay of the densely packed paddy with the paint coating layer on the golf ball body, but the performance of the wood was not sufficiently high. Made again! 10 Problems in the Process - t) The current situation is that we are faced with many problems. For example, the method of treating the golf ball body with flames and then painting it afterwards increases the risk of fire and burns7, and the method that is undesirable from the viewpoint of construction (there is one), but the effect of adhering to F1 is 1. Also, the surface of the golf ball body is not sufficiently thinned.

The effect of adhesion tendency -1- is insufficient, and the shape of the tc dembre formed on the surface is significantly changed.
It had 41 drawbacks.

The present invention was made in view of the above circumstances, and includes a highly VIJ impact-resistant bamboo coating layer on the surface of a golf ball.
The purpose of this book is to provide a surface treatment method for golf balls that can maintain a high level of safety for golf balls. As a result of extensive research, the inventors found that by exposing the golf ball body to a low-temperature plasma atmosphere of a gas that does not have plasma polymerizability, and then applying coating, the adhesion between the ball body and the paint coating layer was improved. The present inventors have discovered that it is possible to improve the performance of the invention, and have arrived at the present invention. 1 Detailed explanation of the present invention.

The golf ball surface treatment method of the present invention is characterized by bringing the golf ball body into contact with a low-temperature plasma atmosphere of a gas that does not affect plasma polymerization when coating the surface of the golf ball body. 3゜Low-temperature Zolaz used in the present invention 7 (so-called glow discharge Zolaz;') &, 11. Low temperature, low F1-Norato C1
By applying an electric field to the gas, the electric field is applied to the gas.
The gas with the above-mentioned b small combinability is
Inorganic or organic tq gases that do not form a thin film of polymers, such as argon, 1X gas, etc. 1. Neon snow 4 (embryonic gas, chlorine, hydrogen fluoride, 9
Prefecture, bromine cyanide, tin 9ide, etc., C+gen gas or 1-) genide, sulfur and sulfite scum, sulfide such as sulfurized water, ■ 5 cables, nitrogen sulphate, ammonia, -carbon oxide, carbon dioxide, etc. Carbon, mizuna < 1, and C'. These processing gases are used in combination or in combination.

Among these processing gases, when using oxygen gas or a mixed gas consisting of oxygen gas and other gases that do not combine with plasma (1), the surface treatment effect is particularly high.
Strong adhesion can be achieved in one hour treatment.

The reason for this is still unclear, but the ultraviolet light emitted by oxygen plasma contains many short-wavelength components, and the outer skin of a golf ball, such as an indium crosslinking resin, has deep absorption in the ultraviolet wavelength range. There is a possibility that the surface treated with oxygen plasma can be specially improved.

The mixing ratio of the 83M elementary gas and other Zolaz 47 non-polymerizable gases is preferably such that the tl fraction of the former is 20% or more.

The processing gas is filled into a processing container and used. The container used is equipped with an electrode for generating an electric field in the processing gas. A gas level suitable for generating low temperature plasma in the processing gas in the container is 10 to 0.01 TOrr, preferably 1-=0.1 or less.

In addition, as the type of the electrode, an inductive load type electric pole or a capacitive load plate type electrode can be applied.Furthermore, any type of electrode can be used. Depending on the installation position relative to the LJ container, there are two types: an internal electrode method that is installed inside the container;
An external electrode method that is installed outside the container and covered can be adopted. In addition, while moving the golf ball inside the container,
In the case of i;'+;
i) "No. 1" is suitable for the power supply that supplies power to the electrodes and l) "C" is a direct current, low frequency, high frequency,
Is it a power source such as 1 wave?), but in order to efficiently start and sustain the induction of /+9 electric power, (, L, i I (1-
5. I like the use of high-frequency power supplies for IZ twins. It is necessary to match the internal resistance of the power supply and the discharge impedance to the platform that applies a high frequency voltage to the starting gas to generate 5μ of low temperature plus -7. For surface treatment, use the above-mentioned ゛plus 4) low-temperature plus l with a force that does not affect compatibility.
5 points ([The volume 'A''A f8 -f) The reflex ball is turned face up () η゛, the diffusion of Blasmagus f1
Spread on the entire surface of the river (2) and uniformly (2) within the range that does not inhibit the diffusion of the gas (3).
゛, 1 pap-'! It is possible to increase the number of golf balls to be treated (GJ, yes).If 1i + air a3 and supply air are increased for a short time, the time required for the treatment of the present invention is 3. - Within 55 minutes 'C'ijl function 1
, Like this 4 [Batch type plasma processing J, IJ' kZ
Although the surface treatment of a certain number of culms can be carried out economically enough, the wood inventors further investigated how to efficiently treat Iribe's one-piece ruf balls, and as a result, they devised the following continuous treatment device. Figures 1 and 2 both show an example of a continuous processing apparatus for processing golf balls in contact with a low-temperature plasma atmosphere (hereinafter referred to as "plasma treatment"). Identical components are designated by the same reference numerals.

First, the continuous plasma processing apparatus 1 shown in FIG. 1 is equipped with a spiral long tube 2 for generating low-temperature plasma, and the long tube 2 has its axis oriented 3i1) in a perpendicular direction. IC has been purchased. The upper end of the long tube 2 is connected to the inlet decompression chamber 3, and the lower end is connected to the outlet decompression chamber 4.1 Externally, the long tube 2 has an external electrode 5 for plasma generation ( In the figure, only two are available), but a plurality of them are installed at predetermined intervals. 7 These external electrodes are inductive load coil type electrodes formed by spirally winding a conducting wire 6 along the outer peripheral surface of a long tube 2, as shown in FIG.
Or, Fig. 4 U-, 7J';``j' J, tsu (=&
'lAden44i-/8, 711 Wom circumference of tube 2 m
1 (Mold it and place it in one direction. /, 'Filter capacity or load circular f Sea 1-type ゛Electric 1j 5 b is applicable (
1, to these external electrodes 5, 1, ↓, not shown, the power supply ijMj is connected 1, the above device 1 (, 2 ([3, long tube 2, person r, +'
＜Ik F+－ Inside the chamber 3 and the reduced pressure 17i''l of the outlet 1.1, the JJP gas -1'' was introduced.
And, this sword Ll- has the predetermined 1F force (, Niho/ζ
This is C. I Also, small' in Figure 2! I', f Raz 7 i! li sequel processing station processing equipment 1'11 diagram (the point where Tatsumi 4T of Gojo b is,
Low-temperature play 1 outbreak G4. ．． 2 r and 4 diagonal 5, use point C (, other construction types;
)Se, and the setting article I'guchi, Figure 1 shows the 1ii
Mr. C-Are there any devices described in 1゜1-? ′? 1 (1') J.
, 11. Apply C high-frequency voltage to the external electrode 5 via an impedance circuit, etc., and generate a low-temperature plasma inside the long tube 2 (2') from the inside of the entrance annihilation chamber 3. To be processed - [Play reflex balls ε3, 8... in sequence?
2. Send it inside.

The golf ball 8 moves inside the inclined long tube 2 (2') toward the ζ end, comes into contact with the low temperature plus atmosphere, and is treated uniformly over the entire surface. be done 3
, the golf ball 8 that has passed through the long pipe 2 (2') is il:
it is collected in the decompression chamber 4. .

In addition, in the above-mentioned apparatus a5, the low-temperature plasma generation long tube 2
, 2' and the number of external electrodes are determined by the plasma gas conditions (gas type, degree of vacuum, flow rate) and the applied electric field (T
(power frequency, discharge voltage, discharge current, lightning rod shape snow) and the rolling speed of the golf ball to be treated.
Normally, if the time for the golf ball to stay in the plasma atmosphere is set to about 1 minute, a sufficient surface treatment effect can be obtained1.Also, since the electrode part receives light heat from the discharge 15, If necessary, remove the heat sink or install air-cooled or water-cooled means.
'Ichi J, I, 7 But, like the above plus 7 place I! 11 J:Re(, balls, many golf balls;
11! The treatment can be carried out continuously and efficiently, and since the treatment is carried out while rolling the ball, the treatment is uniformly applied over the entire surface of the ball.

After the plasma treatment, the 21 Rufpole has the usual 152 people, upstream IJrj Fl paint and cream.
India is painted and put into service. This painting uses white 411. 3↑! L J> and 1 tube adhesion 1 hard urethane type P-in 1-gari 1' suitable (,:
,used. Furthermore, the effect kl of the f-razon section 11 is
1. Disappears rapidly over time. J, U4-cho is I1
However, it is desirable to roast the fruit as soon as possible to apply the vein [-] after Buch's 2 treatment.

In the present invention, the method for treating the surface of a golf ball is as follows:
Regardless of the type of material that forms the surface of the Lunapol body (e.g., balata resin, thermoplastic resin, metal salt supplemented 1°1 peroxide crosslinked In resin, etc.), RB right is effective when applied to golf balls ≧, and FF creates strong adhesion between the surface of the rruno ball body and the painted veins 1 to 1.
? I can do it (゛kiru 4, Koma, in recent years I have excellent resistance)
Due to its impact-destructive properties, C is often used as the outer shell of the Ding Ruf Ball. Ionically crosslinked FI thermoplastic resins, such as Zarlin resin (5゛)] Bonreisho, a copolymer of 1F Ren and unsaturated monocarboxylic acid, etc. Conventionally, there has been no effective surface treatment method for resins containing compositions containing heat-changeable metal cross-links (resins containing heat-changeable metal cross-linking). C is effective.The low-temperature plasma gas used in the present invention has a gas atmosphere temperature of at most 80°C.
Since the temperature is around 100℃ or higher, the desired surface treatment effect can be obtained without damaging the molded shape of the substrate or dimples on the surface of the golf ball □, which is made of a material that is relatively sensitive to high temperatures. It is possible.

In addition, the adhesion between the surface of the golf ball and the paint does not deteriorate due to environmental factors such as temperature, humidity, and light.
It remains extremely stable over time without causing fading or discoloration of Bain 1-.

Next, the present invention will be explained in more detail based on examples.

Referring to Example 85 under JS, the day/peel test involves making a knife cross cut on the surface of a painted golf ball, pressing an adhesive tape over the cross cut, and applying this tape to the surface of the painted golf ball. This is a test method that observes the state of interfacial peeling when rapidly peeled off, and is repeated 4I? The test is a test method in which a single golf ball is hit repeatedly with one bite and the state of peeling of the C-ben 1 is observed.

[Example 1] Equipped with a spiral-shaped zolazin generation tube 2 shown in FIG.
A golf ball with a Reelin resin outer shell was treated with Zolazun using Noko Shirasu 11-sho Tanuki Sohaku. Plasma generation length %: 24. The path length is ε3Il+, and this long tube is equipped with 16 stages of inductive load-21 type external electrodes 55 (1J) as shown in FIG. Introducing oxygen gas as if it were a waste.
The power was kept at a constant state of Q, 51-orr. 7
1i pole (, t, frequency a 13 , 56M1lz, output 50 W)? i% 171-wave power was supplied, and low-temperature plasma inside the long tube 2 was avoided.

The golf ball is subjected to a rolling speed (3+n/min C rolling t!4) surface treatment in the above-mentioned Zolaz/atmosphere, and then the treated ball is coated with a urethane-based two-component curing type Bo1 No.1
-Beinl- and Kurifubaint 7, /I
For comparison, Zolazun treatment was applied to Ruff Ball at a temperature of 4 degrees C.

Each of the above balls was subjected to a 7-1 peel test and a repeated impact test.
Comparative evaluation of interfacial adhesion with ~ was conducted. The results are shown in Table 1.

Table 1 shows that the surface-treated golf ball of the present invention has the interfacial adhesion between the phosphorus resin outer shell and the paint, statically b and J-high speed ball. It has been confirmed that the golf ball is extremely strong even after being hit repeatedly.In addition, the method of continuously rolling the golf ball inside the long tube as described above is very unique to Nohbo. Processing/J method.

[Actual/+fii Example 2] A zigzag-shaped 1-razun generation I (with a tube 2') of the type shown in Fig.
1. Put the outer skin of 1 fat on a stone and pound it 7 times on a 1 f. Gutszu! The generation length tube 2' has a path length of 10 m, and 20 external electrodes of the circular plate type 1 to 1 are installed in this tube 2' (as shown in Fig. 4).
．． Inside the long pipe 2', rugone was introduced through a processing gas outlet, and the pressure was maintained at a reduced rate of 0.2'+011. The power supply to each lR411j was as described in the embodiment. 1
Also, the rolling of the ball) *The degree is about 10m7.
'The golf ball was treated with Glaz 7 for a few minutes.

Year I J! The ball after lj was painted in the same manner as in Example 1. For comparison, an untreated golf ball and a golf ball whose surface had been flame-treated were similarly coated.

For each ball listed above, perform Teso peel test and repeat hitting! A test was conducted to compare and evaluate the adhesion of the interface between the outer skin surface and the paint. The results are shown in Table 2 (.

As shown in Examples 1 and 2 of Table 2, the golf ball surface treatment method according to the present invention does not create strong adhesion between the surface of the ball body and the painted Ni layer. It was confirmed that this material can have high irritant-strike peeling resistance.

In addition, it was confirmed that the safety of making 10 pieces was maintained at a high level because only contact was made with the low-temperature plasma atmosphere.

[Brief explanation of the drawing]

1 and 2 are schematic diagrams showing an example of a continuous plasma processing apparatus used in the present invention, and FIG. 3 shows an example of an external electrode with an inductive load-coil type electrode. Fig. 4 is a perspective view showing the same volume φ\J front circular plate 1-type electrode. 1.1'... Brazen processing device, 2, 2'...
...Long temperature plasma generation tube, 3...Inlet decompression chamber, 4...Outlet decompression chamber, 5...External electrode. Applicant Brides 1-N Tire Co., Ltd. Figure 3

Claims (1)

[Claims] 1. A method for surface treatment of a golf ball, which comprises: bringing the golf ball body into contact with a low-temperature brazen atmosphere containing a gas that does not affect compatibility. 2. [■] The gas that does not affect the plasma polymerization property is a 416 mixed gas of oxygen gas or 41.1 gas and other gases that do not affect plasma polymerization f, l.Claim 1
1nlrThe golf ball surface treatment method described herein. 3. The low temperature plasma atmosphere is connected to the external electrode at 4'+'
According to claim 1 or 2, the low-temperature zolazma is generated inside the long tube and transferred to the interior of the long tube in the golf ball body 4 while avoiding contact with the low-temperature Zolazma atmosphere. Golf ball surface treatment method. 4. The scope of claims in which the external electrode is either an inductively loaded circular plate type electrode or a capacitively loaded circular plate type electrode. -T Ruf ball surface treatment method according to item 3. 5. The scope of claims in which the golf ball body has a surface made of any one of balata resin, thermoplastic resin iJ3, metal salt reinforced peroxide crosslinked resin, or a Zorendo material covering these resins as a main component. The method for surface treatment of a golf ball according to any one of items 1 to 3. 6. The golf ball body is made of ionically crosslinkable thermoplastic TP
The method for surface treating a golf ball according to any one of claims 1 to 3, wherein the outer skin is made of a "tt" resin.