KR20070060565A - Method of forming gradation in plastic material and insole manufactured by the same - Google Patents

Abstract

A method of forming gradation in a plastic material and an insole manufactured by the same are provided to maintain beautiful color for a long time by implementing the gradation. A method of forming gradation in a plastic material includes the steps of preparing a plastic material(S10), dipping the plastic material in a dye solution(S20), separating the plastic material from the dye solution after dipping the plastic material at a temperature of 50 to 80°C for 30 to 40 minutes(S30), performing cleaning of the plastic material when dye is intruded into the plastic material(S40), migrating the plastic member to prevent the dye from being migrated onto the surface of the plastic material(S50), and removing moisture, foreign substances and air from the plastic member and performing a dry process.

Description

Method of forming Gradation in Plastic Material and Insole manufactured by the same}

1 is a flow chart illustrating a method of forming a gradient in a plastics material in accordance with a preferred embodiment of the present invention.

FIG. 2 is a plan view showing a plastic material in which gradation is implemented according to the method shown in FIG. 1 according to a preferred embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

100: first region 200: second region

TECHNICAL FIELD The present invention relates to a method of implementing color in plastic materials, and more particularly, to a method of forming a gradation in a plastic material and a shoe insole manufactured thereby.

Gradient is also called a gradation method, in which two or more colors are arranged in succession, causing the transition from the first color to the second color gradually without sudden change in color. This gradient is mainly used for color design of clothing and the like. That is, it is used to express aesthetics by gradual change of color when dyeing clothes.

However, when gradation is formed on the plastic material, a method of applying color to the plastic surface and coating the applied color is used. When using the coating method, the plastic material has a problem that the coated color is peeled off from the surface of the plastic material by friction with the outside.

In particular, in the case of a plastic product which is in direct contact with a human body such as a shoe insole or a plastic container, or frequently in contact with an external material, such a peeling phenomenon may occur easily.

In addition, the color coated on the plastic material may be peeled off due to a change in temperature, a change in humidity, or the like.

A first object of the present invention for solving the above problems is to provide a method of penetrating a dye into a plastic material to form a gradation effect.

In addition, a second object of the present invention is to provide a shoe insole manufactured by the method according to the first object.

The present invention for achieving the first object comprises the steps of preparing a plastic material; Precipitating the plastic material in dyed water to infiltrate dye into the plastic; Separating the plastic material from the dyeing water; Performing a dyeing treatment on the plastic material separated from the dyeing water; And it provides a method of forming a gradient on the plastic material comprising the step of drying the dye-treated plastic material.

The present invention for achieving the second object, the first region is formed so that the first dye is penetrated and has a first light gradually from the dark portion of the first color from the bottom to the top; And a gradient in which a gradation is formed on the first area and has a second area formed from a light portion of the second color to a gradually dark first color from the bottom to the top.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Example

1 is a flow chart illustrating a method of forming a gradient in a plastics material in accordance with a preferred embodiment of the present invention.

Referring to Figure 1, first to prepare a plastic material (S10). Preferably, the plastic material is a shoe insole.

Subsequently, the plastic material is precipitated in the dyeing water (S20). The dyeing water is a mixture of a dye, a surfactant and an organic solvent. In particular, the dye is preferably a disperse dye. As the disperse dye, azo, anthraquinone, azomethine or nitro dyes are used. Preferably, the disperse dye is an anthraquinone dye. In particular, the disperse dye is provided in the form of fine powder since it is insoluble in water.

In addition, the surfactant serves to disperse the disperse dye. The surfactant has a hydrophilic group and a lipophilic group at the same time, lowers the surface tension of water and functions as a penetration, dispersion, emulsification, and bubbles between materials. As said surfactant, anionic surfactant, cationic surfactant, nonionic surfactant, and amphoteric surfactant are used. Preferably the surfactant uses an anionic surfactant. The anionic surfactant is ionized in an aqueous solution, and anion is used as a main agent of the active agent.

The dyeing water mixture is used in 0.5 parts by weight to 2 parts by weight of a polyester dispersion dye in 2 parts by weight to 10 parts by weight of the surfactant. In addition, an organic solvent may optionally be used for controlling the penetration rate of the disperse dye. That is, the weight ratio of the organic solvent is increased to increase the penetration rate of the disperse dye, and to reduce the penetration rate of the disperse dye, no organic solvent is added or the weight ratio of the organic solvent is reduced.

In addition, when the plastic material is precipitated in the dyeing water and the dye is infiltrated into the plastic material, the dyeing water can be heated to precipitate for a predetermined time. Preferably, the temperature of the dyeing water is maintained at 50 ℃ to 80 ℃, it is preferable to use a hot bath indirectly to heat rather than directly heating.

After settling for 30 seconds to 40 seconds at the temperature, the plastic material is slowly released from the dyeing water (S30). If the rate of release of the plastic material is slow, dark color appears in the precipitated area, and if the rate of release of plastic material from the dyeing water is fast, the color of light precipitates in the precipitated area.

Through the above process, the dye is penetrated into the plastic material. This is because the disperse dye is dispersed into a fine powder of the surfactant, the polymer structure of the plastic surface is swollen by the action of the organic solvent and the surfactant, and the fine powder disperse dye penetrates into the swollen space.

In addition, control of the penetration rate and concentration of the dye is determined by the temperature, the concentration of the organic solvent and the surfactant, the type of the dye, the settling time of the plastic material, and the like.

Also, in order to obtain a gradation effect between the two colors, one end of the plastic material is precipitated in the first dyeing water having the first color and then separated from the first dyeing water, and the other end is then the second of the second color Precipitated in dyed water and then separated from the second dyed water.

When the penetration of the dye into the plastic material is completed, the cleaning is performed on the plastic material, the gradation is implemented (S40).

The cleaning of the plastic material in which the gradation is implemented is to inject the plastic material into the bubble generator or the ultrasonic cleaner, and to remove the dye or foreign matter adhered to the surface of the plastic material by using a detergent.

Subsequently, in order to prevent dye dye penetrating into the plastic material and being colored onto the surface of the plastic material, a dyeing treatment is performed on the plastic material (S50). The dyeing treatment is performed by precipitating a plastic material in a water bath containing a dye preventing agent for a predetermined time and cleaning the surface with water. Preferably, cleaning the surface with water is performed by a bubble generator or an ultrasonic cleaner.

Subsequently, water and foreign substances on the surface of the plastic material are removed using air, and a drying process is performed (S60). In the drying process, a plastic material is added to a drying furnace, and preferably dried at 60 ° C. to 70 ° C. for 2 minutes to 3 minutes.

FIG. 2 is a plan view showing a plastic material in which gradation is implemented according to the method shown in FIG. 1 according to a preferred embodiment of the present invention.

2, the plastic material is preferably a shoe insole.

First, the dye of the first color penetrates into the first region 100 which is the lower portion of the shoe insole. That is, from the upper portion 110 to the lower portion 120 of the first region, the first color has a gradation effect so that the intensity is gradually increased.

This precipitates the first region 100 in the first dyed water disclosed in FIG. 1 and slowly raises the shoe insole so that a small amount of dye penetrates into the upper region 110 of the first region, The lower portion 120 of the region is due to the penetration of a large amount of dye. In addition, the second region 200 is precipitated in the second dyed water and the second dye is permeated into the second region. Through the above-described process, the gradation effect of gradually changing the color density of the first color and the second color from the first area 100 to the second area 200 without the sudden change of color appears.

When the rinsing insole is subjected to washing, dyeing and drying processes, a dye-infiltrated gradation appears in the shoe insole. The gradation can provide a shoe insole with a smooth color change, and can prevent discoloration due to discoloration due to constant movement or sweat of the user or peeling of the coating surface.

According to the present invention as described above, the dye can penetrate the plastic material, it is possible to implement a gradation for the plastic material. In addition, the dye can be prevented from being transferred through drying and dyeing treatment. By penetrating the dye to realize the gradation, beautiful colors can be preserved for a long time, and can be prevented from being discolored by moisture or moisture.

Although described above with reference to a preferred embodiment of the present invention, those skilled in the art will be variously modified and changed within the scope of the invention without departing from the spirit and scope of the invention described in the claims below I can understand that you can.

Claims (8)

Preparing a plastic material; Precipitating the plastic material in dyed water to infiltrate dye into the plastic; Separating the plastic material from the dyeing water; Performing a dyeing treatment on the plastic material separated from the dyeing water; And Drying the rinsed plastic material. The method of claim 1 wherein the plastic material is an insole of a shoe. The method of claim 1, wherein the dyeing water comprises a disperse dye, a surfactant, and an organic solvent. The method of claim 3, wherein the disperse dye is an azo, anthraquinone, azomethine or nitro-based dye. The method of claim 3, wherein the dyeing water comprises 0.5 to 2 parts by weight of polyester dispersed dye in 2 to 10 parts by weight of the surfactant. The method of claim 5, wherein the dyeing water maintains a temperature of 50 ℃ to 80 ℃. A first region in which the first dye penetrates and is formed to have a gradually pale first color from the dark portion of the first color from the bottom to the top; And A shoe insole having a gradation formed on the first area and having a second area formed from a light portion of the second color to a gradually dark first color from the bottom to the top. The shoe insole of claim 7, wherein the first dye or the second dye is a disperse dye and is an azo, anthraquinone, azomethine or nitro dye.

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