JPS6028953B2 - Printing method for synthetic resin eyeglass frames - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of printing synthetic resin eyeglass frames, and more specifically, a method of printing a synthetic resin eyeglass frame by transferring an adhesive glue layer having a pattern formed from base glue and colored glue onto a synthetic resin eyeglass frame. The present invention relates to a printing method in which a pattern is made to appear on the synthetic resin eyeglass frame by heat treatment.

Conventional dyeing methods for synthetic resin eyeglass frames have been the immersion method and the spray method. Both methods are dyeing methods that allow for easy mechanical manipulation and can be mass-produced, but on the other hand, they are unsuitable for forming complex and delicate patterns on eyeglass frames. That is, the immersion method is a method in which the whole or a part of the eyeglass frame is immersed in a dye bath and dyed, and the whole or a part of the eyeglass frame is dyed in a single color. In addition, when dyeing a shading tone using this method, methods are being explored to change the contact time between the eyeglass frame and the beam solution depending on the dyed area.
The dyed product obtained has a linear pattern of shading. On the other hand, the spray method is a method in which a screen with a pattern is placed in front of the eyeglass frame, and the dye solution is sprayed through this screen using a spray gun. is obtained. In addition, in order to obtain a blurred pattern using this method, a method is adopted in which the distance between the glasses frame and the screen is changed, and the dyed product obtained has a blurred shading or unusual color blurring pattern in the entire pattern or in the negative part. Become. Although both methods yield dyed products with unique characteristics, they cannot produce complex and delicate patterns similar to suminagashi on eyeglass frames.

Recently, there has been a demand for sunglasses with colorful colors, as well as unique and exquisite patterns, such as suminagashi-like patterns, and the development of new dyeing methods has been desired.

An object of the present invention is to provide a dyeing method capable of producing a unique and beautiful suminagashi-style pattern on synthetic resin eyeglass frames, which was not possible with conventional immersion and spraying methods.

In the dyeing method of the present invention, a dyeing paste layer is formed by forming a pattern with a sticky colored paste made of a sizing agent, a promoting agent, and a dye on a tacky original paste prepared by dissolving a sizing agent in water. The method is characterized by a printing method comprising transferring the dye onto a synthetic resin eyeglass frame, and heat-treating the dye at a temperature at which the dye adheres to the synthetic resin eyeglass frame, thereby causing fixation and color development.

Conventionally, as a dyeing method that always forms a suminagashi-like pattern on textile fabric, for example, as described in Japanese Patent No. 43397, a colored dye is floated on a liquid and the colored dye is dyed using wind pressure. A method is known in which a fluid pattern shell is moved to reveal a suminagashi style pattern, and then this is constantly transferred to a fiber cloth to develop color.

However, this method is characterized by the fact that the base-flowing pattern formed on the liquid surface is adsorbed onto a highly liquid-absorbing fiber cloth. Even when applied to dyeing, the amount of the coloring paste deposited is small and a deep color cannot be obtained, resulting in dyeing that is only to the extent of staining. The reason why deep colors cannot be obtained with this method is that the eyeglass frame, which is the object to be dyed, is not liquid-absorbent as mentioned above, and the pattern formed because the coloring paste is floating on the highly fluid liquid. The problem is that the coloring paste spreads quickly due to its fluidity, making it impossible to maintain a high concentration.

The former is an unavoidable problem, but the latter can be solved by reducing the fluidity of the formed pattern to prevent the coloring paste from spreading, and even considering the method of attaching the coloring paste to the eyeglass frame. The present invention was developed based on the fact that a deep color can be obtained. In other words, a pattern is drawn in the form of lines or dots using a sticky colored glue containing an accelerator and a dye on top of the sticky base glue, and this pattern is stroked with a feather, brush, comb, etc. to create a flowing pattern. to form.

The pattern formed here looks like colored glue flowing out onto the original glue, making it reminiscent of suminagashi. Since this pattern has adhesive properties in the base paste and the colored paste, there is no change in brightness and density changes due to diffusion of the colored paste do not occur.
Next, a dyeing glue layer having a pattern formed by this base glue and colored glue is transferred onto the eyeglass frame.

In this case, it is possible to simply bring the eyeglass frame into contact with the pattern formed on the glue layer, but the glue layer is attached to the eyeglass frame by stroking the eyeglass frame in the flow direction of the pattern formed on the glue layer. It is possible to create a pattern that emphasizes the flow of a suminagashi-style pattern. Next, the glasses frame with the glue layer attached is heat-treated at a temperature at which the dye stains the glasses frame,
Wash with water and dry. The heat treatment may be an exothermic treatment using infrared rays or heated air, or a wet heat treatment using water or organic solvent vapor, but if a deep color is desired, a wet heat treatment is advantageous. Note that the moist heat treatment also includes water or steam having a temperature below the boiling point of the organic solvent. Further, washing with water is sufficient to remove the glue adhering to the eyeglass frame after dyeing, but for more thorough washing, washing with hot water may be performed. The glasses frame thus obtained has a suminagashi-like pattern formed thereon, making it possible to obtain a unique and beautiful glasses frame.

Moreover, if the above operation is repeated multiple times using colored pastes containing dyes of different hues, colorful and beautiful eyeglass frames can be obtained.

Synthetic resins constituting the eyeglass frames applicable to the present invention include styrene resins, polyester resins, polyamide resins, polyurethane resins, polyolefin resins, POIJ vinyl chloride resins, epoxy resins, acrylic resins, Examples include cellulose resins.

The dyes used in the present invention may be dyes and pigments that can be dyed onto the above synthetic resins, such as disperse dyes, acid dyes, cationic dyes, direct dyes, oil-resistant dyes, crab light dyes, and organic pigments. be.

In addition, as the sizing agent used in the present invention, locust bean gum type, guabean gum type, etherified modified starch type, C
．． M. C. Natural glues based on acrylic, sodium alginate, and synthetic glues such as acrylic, polyvinyl alcohol, and polyethylene oxide, as well as O/W type emulsion glue can be used.

These glues may be used alone or in combination of two or more as base glue and color glue. For example, the base glue is 5 to 5 of the above glue.
The viscosity is 200% by weight.
00-5000 ratio. p. It is s. Note that this base glue may contain a beam promoting agent in an amount of 5 to 2% by weight. In addition, the colored paste is made of the same kind of paste as the original paste or a different paste with a dye added to it.
-1% by weight and 5-2% by weight of the promoting agent were added, and water was added to bring the viscosity to 20,000-4,000%. p. s. It is like a paste. The promoting agent used in the present invention may be any substance as long as it dissolves or swells the synthetic resin used in eyeglass frames and dissolves the dye used.

For example, aromatic compounds such as methylnaphthalene and chlorobenzene, benzyl alcohol, phenol, ethyl alcohol, and isophyl alcohol. Alcohols such as lopyl alcohol, esters such as methyl salicylate, ethyl acetate, amisoacetate, dimethyl phthalate, and triethyl phosphate, amide compounds such as dimethylformamide and toluenethylsulfamide, ketone compounds such as acetone and methyl ethyl ketone, Examples include ether compounds such as phenyl cellosolve and butyl cellosolve. These dye accelerators can be used alone or in combination of two or more, and by using these accelerators, dyes can be fixed at temperatures below the glass transition point of the resin, especially in cellulose resins. can be done. As the heat treatment temperature for synthetic resin eyeglass frames becomes higher than the glass transition temperature of the eyeglass frame, the fixation of the dye increases, but at the same time, the surface of the eyeglass frame becomes a stain and loses its luster. It starts to transform.

Therefore, the heat treatment temperature must be within a temperature range that does not cause deformation of the eyeglass frame, preferably a temperature that does not cause the surface of the eyeglass frame to become rough, and that provides good fixation of the dye. That is, for nitrocellulose resin, 25 to 60, preferably 30
~4500, 30-560 for acetyl cellulose resin
Preferably 35-45o0, 40 for 6 nylon resin
-10000, preferably 50-70oo, 60-100℃ for polypropylene resin, preferably 70-90oo
temperature range. The dyed product heat-treated in the above temperature range is glossy, undeformed, and dyed in a deep color. Example 1 In 10 parts of water, 1 part of Indarca PA-30 (guabean gum paste made by Cesarpinia) was dissolved, and 8 parts of triethyl phosphate was added to make a paste, resulting in a viscosity of 450.
00-5000 ratio. p. Prepare the base glue of s.

Next, to the base glue, 2 parts of Miketon Fastello-GL (disperse dye manufactured by Mitsui Tosho Co., Ltd.), 5 parts of Eastman Polyester Red Genuine L (dispersed dye manufactured by Eastman Co., Ltd.), and 5 parts of Calon Fast Plug RD (dispersed dye manufactured by Eastman Co., Ltd.) were added. Add 5 parts of Nippon Kayaku disperse dye) and 10 parts of water and knead to obtain a viscosity of 41,000 to 4,500. p
．． Prepare the color paste of s. The base paste is applied thickly to a printing stand, the color paste is dropped onto it in lines or dots to draw a pattern, and the drawn pattern is forcibly moved with a brush;
A flowing pattern, or a suminagashi pattern, is formed on the original glue layer. Next, an eyeglass frame made of acetyl cellulose is brought into contact with the glue layer on which the pattern has been formed, and the glue layer is attached to the eyeglass frame.
42 to 43 qo) for 5 minutes to perform moist heat treatment. After the moist heat treatment, the eyeglass frames are washed with water and dried. The dark brown suminagashi-like pattern formed on the original glue layer was clearly transferred to the resulting glasses frame, and a glossy, unique and beautiful glasses frame was obtained.

Example 2 A glasses frame made of acetylcellulose to which the glue layer obtained in Example 1 is attached is left in air at 5500 °C for 10 minutes, and then washed with water and dried.

A brown suminagashi pattern was clearly transferred to the resulting glasses frames.

Example 3 Using the base glue used in Example 1, color paste containing 5 parts of Holon Prilliant O-SE-FL (disperse dye manufactured by Sandoz) and Setaseal Turkey Blue G (manufactured by Ciba-Geigi Co., Ltd.) were added. Make a colored glue containing 5 parts of disperse dye, drop both colored glues onto the original glue layer, scatter it with a brush to form a suminagashi-like pattern, and apply this to eyeglass frames mainly made of nitrocellulose. It is attached and left in the steam phase of 353C for 10 minutes, then washed with water and dried.

The resulting eyeglass frames had a pattern that was recognized as suminagashi, which was made up of three colors: yellow, green, and blue, and was clearly transferred to them.

Furthermore, instead of dropping two types of colored glue onto the original glue at the same time to form a suminagashi-like pattern as described above, the same effect as in this example can be obtained by applying the method of Example 1 for each colored glue. A glasses frame having the following properties is obtained.

Example 4 10 parts of water, 5 parts of Fine Gum HE (CMC type glue manufactured by Daiichi Kogyo Seiyaku Co., Ltd.), 3 parts of dimethyl sulfoxide
Dissolve 2 parts of pendyl alcohol and adjust to pH with acetic acid.
Viscosity 32000-3500 ratio adjusted to 4. p. Make the base glue for S.

Next, to 10 parts of water, add Indarka PA-301, 2 parts of Rikiyanol Milling Red RS (acid dye made by Nippon Kayaku), 5 parts of dimethyl sulfoxide, and acetic acid to adjust the pH to 4. make. Next, a suminagashi-like pattern was formed on the original glue layer using the same method as in Example 1, and this was transferred and adhered to a 6 nylon resin eyeglass frame, which was then subjected to a moist heat treatment with steam at 70°C for 20 minutes, followed by hot water treatment. Rinse with water and dry.

A beautiful red suminagashi pattern has been transferred onto the resulting glasses frames.

Claims (1)

[Scope of Claims] 1. A dyeing glue layer in which a pattern is formed with a sticky colored paste consisting of a sizing agent, an accelerating agent, and a dye on a tacky base glue prepared by dissolving a sizing agent in water. 1. A method for printing synthetic resin eyeglass frames, which comprises preparing a synthetic resin eyeglass frame, transferring the dye to a synthetic resin eyeglass frame, and heat-treating the dye at a temperature at which the dye stains the synthetic resin eyeglass frame. 2. A patent claim characterized in that the pattern formed with colored glue on the original glue layer is a suminagashi-style pattern formed by scattering lines or dots with a feather, brush, comb, etc. The textile printing method according to item 1. 3. The textile printing method according to claim 1 or 2, wherein the heat treatment is carried out in the presence of a steam medium at a temperature of 100° C. or lower. 4. The textile printing method according to claim 3, wherein the synthetic resin is a cellulose resin, and the heat treatment temperature is below the glass transition temperature of the cellulose resin.