KR100660134B1 - a processing method for hair comb - Google Patents

Abstract

The present invention relates to a method for manufacturing a hair comb, and more specifically, to express a clear and bright color by dyeing the injection-molded hair comb and to minimize the defective rate generated during the dyeing process of high quality to feel high quality An invention is provided so that a hair comb can be provided.

The present invention described above, the drying step of evaporating the solvent component and moisture contained in the raw material chip by drying the nylon raw material chips (chip) in a drying chamber for 3 to 4 hours by spraying hot air in the drying chamber to maintain a temperature of 100 ~ 130 ℃ ; Mixing the white titanium powder evenly so as to be 0.2 to 0.4% by weight of the raw material chip so that the titanium powder is evenly applied to the surface of the raw material chip; After suctioning and removing the gas remaining in the inner molding groove of the mold through the suction passage formed in the injection mold by using the vacuum pump, the vacuum pump is stopped and the raw material chips mixed with titanium powder are melted in the injection molding machine. Injecting the molten raw material into the inner molding groove of the mold to form a comb; After hardening the formed comb and putting it in a container composed of nets, color dye is added to 0.3 to 0.6% by weight of water. When the water boils, the net container containing the molded combs is put into boiling water for 35 to 50 minutes intermittently. While shaking, add 0.03 to 0.06% by weight of the color dye two to three times more, add a small amount of glacial acetic acid if the dye is acidic, and add a small amount of sodium hydroxide if the dye is acidic. A dyeing step of coloring the dye on the surface; Washing the comb which has been dyed and washed with clean water; Allowing the washed comb to immerse in warm water maintained at 60 to 80 ° C. for 4 to 5 hours while adding an acid dye fixer such as casein to 0.8 to 1.2% by weight of the warm water to solidify the coated dye; Dehydrating the hair dye by coagulation of the color dye by placing the hair comb in a shaded place for 30 to 40 minutes; Hanging the dehydrated comb in a drying chamber can be achieved by a method for producing a hair comb comprising the step of drying the water by spraying hot air at 80 ~ 90 ℃ 40 to 60 minutes.

Description

Production method of hair comb {a processing method for hair comb}

1 is a manufacturing process chart sequentially listing the manufacturing process according to the present invention,

Figure 2a and Figure 2b is a cross-sectional view sequentially listing the process of molding the hair comb in the injection mold according to the present invention.

Explanation of symbols on the main parts of the drawings

10: injection mold

11: molding groove

12: injection passage

13: suction passage

20: vacuum pump

The present invention relates to a method for manufacturing a hair comb, and more specifically, to express a clear and bright color by dyeing the injection-molded hair comb and to minimize the defective rate generated during the dyeing process of high quality to feel high quality An invention is provided so that a hair comb can be provided.

In general, hair combs are a tool used to straighten tangled hair using comb teeth formed at tight intervals. In the past, combs were mainly made of wood such as bamboo or horns of beasts. Most combs are made of nylon or celluloid, a non-toxic synthetic resin that can be produced.

However, the above-mentioned conventional combs are formed by mixing and melting a pigment in a synthetic resin raw material chip and injecting it into an injection mold so that the color of the comb becomes cloudy as the pigment is mixed in a translucent chip. In the end, high quality combs could not be realized.

In addition, the synthetic resin raw material chip contains a solvent component, which is a solvent, and a considerable amount of water, and these components are substantially evaporated and disappeared when the raw material chips are melted. When injected into the injection mold, the solvent component and the water gas (gas) as the gas bubbles (gas) formed on the surface of the formed comb, such as closed ends occur.

In addition, these bubbles not only became a major cause of increasing the defective rate during the comb forming operation, but also caused problems such as generating a considerable defect in the dyeing process because dyeing was not made at the bubble site even when the molded comb was dyed. .

The present invention has been made in view of the above problems, the purpose of which is to dye the injection-molded hair comb to express a clear and bright color as well as to minimize the defective rate generated during the dyeing process of high quality to feel high quality In providing a hair comb.

Features of the present invention for achieving the above object, the solvent component contained in the raw material by drying the nylon raw material chip (chip) in a drying chamber for 3 to 4 hours in a drying chamber to maintain a temperature of 100 ~ 130 ℃ by spraying hot air in the drying chamber A drying step of evaporating moisture; Mixing the white titanium powder evenly so as to be 0.2 to 0.4% by weight of the raw material chip so that the titanium powder is evenly applied to the surface of the raw material chip; After suctioning and removing the gas remaining in the inner molding groove of the mold through the suction passage formed in the injection mold by using the vacuum pump, the vacuum pump is stopped and the raw material chips mixed with titanium powder are melted in the injection molding machine. Injecting the molten raw material into the inner molding groove of the mold to form a comb; After hardening the formed comb and putting it in a container composed of nets, color dye is added to 0.3 to 0.6% by weight of water. When the water boils, the net container containing the molded combs is put into boiling water for 35 to 50 minutes intermittently. While shaking, add 0.03 to 0.06% by weight of the color dye two to three times more, add a small amount of glacial acetic acid if the dye is acidic, and add a small amount of sodium hydroxide if the dye is acidic. A dyeing step of coloring the dye on the surface; Washing the comb after the dyeing is completed with clean water; Allowing the washed comb to immerse in warm water maintained at 60 to 80 ° C. for 4 to 5 hours while adding an acid dye fixer such as casein to 0.8 to 1.2% by weight of the warm water to solidify the coated dye; Dehydrating the hair dye by coagulation of the color dye by placing the hair comb in a shaded place for 30 to 40 minutes; Hanging the dehydrated comb in a drying chamber can be achieved by a method for producing a hair comb comprising the step of drying the water by spraying hot air at 80 ~ 90 ℃ 40 to 60 minutes.

Hereinafter, with reference to the manufacturing process of Figure 1 attached to a preferred embodiment for achieving the above object is as follows.

Example

Chips, which are the raw materials of nylon, were dried in a drying chamber by spraying hot air in a drying chamber for about 3 to 4 hours in a drying chamber maintaining a temperature of about 110 ° C., and evaporated by drying the solvent component and water contained in the raw material chip.

At this time, it is important that the drying time is appropriately adjusted between 3 and 4 hours depending on the moisture content of the raw material chip, and the temperature of the drying chamber is set between 100 and 130 ° C. so as not to cause yellowing of the raw material chip. It is important to make appropriate adjustments.

By the drying process, the solvent component and the moisture contained in the raw material chip are sufficiently evaporated to minimize the waste end generated in the inside of the molding groove when injection molding.

Subsequently, 80 g of white titanium powder was evenly mixed with 25 Kg of the raw material chip so that the titanium powder was evenly applied to the surface of the raw material chip.

The titanium (titanium) powder is formed of a metal powder with a white color, so that the overall translucent raw material chip is opaque and serves to support the color when the color dye is dyed so that the color is vividly colored. On the other hand, by increasing the strength of the hair comb serves to make the comb teeth firm and elastic.

Titanium powder used for the mixing of the raw material chip was made into a master batch to facilitate injection molding of the raw material chip using titanium dioxide (TiO ₂ ) called titanium dioxide.

Subsequently, as shown in FIG. 2A, the vacuum pump 20 sucks and removes the gas remaining in the internal molding groove 11 of the mold through the suction passage 13 formed in the injection mold 10, and then vacuums it. The operation of the pump 20 is stopped, and as shown in FIG. 2B, the molten raw material is internally molded through the injection passage 12 formed in the injection mold 10 while melting the raw material chips mixed with titanium powder in the injection molding machine. It was injected into the groove 11 and molded in the form of a comb.

The raw material chip injected from the injection molding machine is melted at a temperature of 240 to 300 ° C. and then applied to a pressure of 850 to 1,200 kg / cm ² to an internal forming groove 11 of the injection mold 10 maintaining a temperature of 80 to 120 ° C. Injected, the screw of the injection machine for conveying the molten raw material was used having a diameter of 32mm.

When the gas remaining in the molding groove 11 is sucked by using the vacuum pump 20, a small amount of solvent and moisture contained in the chip are converted into gas by heat during the injection molding process of the raw material chip, thereby forming the molding groove 11. Even if it remains inside, it can be effectively removed.

Preferably, when the comb molding is completed, it is preferable to temporarily check whether there are bubbles that are difficult to visually identify by visually dying.

The operation time of the vacuum pump 20 is operated when both injection molds 10 are closed after drawing out the comb after the molding is completed in the state in which both injection molds 10 are opened under the control of a control unit receiving signals from the sensors. It starts and operates until just before the molten raw material is injected through the injection passage 12 to suck and remove the residual gas, and automatically stops when the molten raw material starts to be injected.

Subsequently, the molded comb was cured and stored in a container made of a net, and 50 to 100 g of an acid dye was mixed with 18 liters of water, and the color dye was mixed so that 0.3 to 0.6 wt% with respect to the water, and then the water was heated. When boiled at a temperature of 100 ~ 120 ℃, a mesh container containing molded combs was put in boiling water to shake the container intermittently for about 40 minutes to allow the color dye to penetrate evenly.

In addition, 5-10 g of acid dyes, which are 0.03 to 0.06% by weight of water, were additionally added two or three times while the combs formed in the boiling water were added and dyed to make dyeing evenly on the surface of the comb.

In this case, when the color dye is acidic, a small amount of glacial acetic acid is added as a dispersant, and in the case of a neutral dye, a small amount of sodium hydroxide is added to facilitate the penetration of the dye on the surface of the comb while preventing staining. It was made.

The acid dye (Acid Dyes) is a dye having one or more sulfonic acid groups using a water-soluble anionic dye applied to nitrated fibers, ie, wool, silk, nylon and modified acrylic fibers, chemically Azo, Anthra It consists of quinones, triphenylmethane, azine, ketonimine, nitro and nitroso compounds.

The direct dyes are dyes for directly dyeing nylon or cellulosic fibers in neutral or weakly alkaline solutions without requiring mordant, and are often water-soluble.

As described above, the acid dyes or neutral dyes can obtain a wide range of color tones, most of them are very bright and the range of fastness is also widely used for dyeing nylon fibers, and thus the detailed description thereof is omitted.

The dyed comb was then picked up and washed with clean water.

Subsequently, a small amount of an acid dye fixing agent such as casein was added while the washed comb was immersed in warm water at about 70 ° C. for about 5 hours to coagulate the colored dye.

At this time, the fixing agent was added in about 150-200 g to 18 liters of water, and the mixing agent was mixed evenly so that 0.8-1.2 weight% of water may be sufficient.

The fixing agent serves to prevent color change and to coat and protect the surface of the dyed portion as a coagulation accelerator to solidify and fix the pigment. In this case, casein, which is chemically separated from milk, is used as a fixing agent for pigment, and it is made by mixing water, glue, rubber, oil, resinous synthetic resin, etc. to make the color appear better in casein. Since the detailed description thereof is omitted.

The dye-coated comb was then dehydrated by hanging for about 40 minutes in the shade.

Subsequently, the dehydrated comb was placed in a drying chamber, and hot air at 80 to 90 ° C. was sprayed for about 50 minutes to dry the moisture to complete the production of the comb.

Although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the above-described embodiments, and the present invention is not limited to the above-described embodiments without departing from the spirit of the present invention as claimed in the claims. Various modifications can be made by those skilled in the art, and such modifications are intended to fall within the scope of the appended claims.

The hair comb of the present invention completed by the above-described manufacturing process to dry the nylon raw material chip in the pre-treatment process so that the solvent component and moisture contained in the raw material chip is sufficiently evaporated to minimize the generation of gas (gas) when injection molding In this state, the vacuum pump 20 sucks and removes the gas remaining in the molding groove 11 of the injection mold 10 and injects molten raw material to form a comb. This completely prevented not only minimizes the defect rate caused by bubbles in the subsequent dyeing step, but also the titanium powder included in the raw material is formed of white metal powder, which is opaque when the translucent raw material chip is melted. When the color dye is maintained by maintaining the state, the titanium powder plays a role in supporting the color so that the color is vividly colored. On the other hand, by increasing the strength of the overall hair comb so that the comb is firm and elastic, there is an advantage such as to provide a high-quality comb to consumers, and can enhance the external competitiveness of the hair comb as possible.

Claims (2)

A drying step of evaporating the solvent component and water contained in the raw material chip by drying the nylon raw material chips (chip) in a drying room by spraying hot air in the drying room for 3 to 4 hours in a drying room maintaining a temperature of 100 ~ 130 ℃; Mixing the white titanium powder evenly so as to be 0.2 to 0.4% by weight of the raw material chip so that the titanium powder is evenly applied to the surface of the raw material chip; After suctioning and removing the gas remaining in the inner molding groove of the mold through the suction passage formed in the injection mold by using the vacuum pump, the vacuum pump is stopped and the raw material chips mixed with titanium powder are melted in the injection molding machine. Injecting the molten raw material into the inner molding groove of the mold to form a comb; After hardening the formed comb and putting it in a container composed of nets, color dye is added to 0.3 to 0.6% by weight of water. When the water boils, the net container containing the molded combs is put into boiling water for 35 to 50 minutes intermittently. While shaking, add 0.03 to 0.06% by weight of the color dye in two to three additional portions.If the dye is acidic, add a small amount (3 to 6 g) of glacial acetic acid. A dyeing step of coloring the dye on the surface of the comb by adding 10 g) sodium hydroxide; Washing the comb after the dyeing is completed with clean water; Allowing the washed comb to immerse in warm water maintained at 60 to 80 ° C. for 4 to 5 hours while adding an acid dye fixer such as casein to 0.8 to 1.2% by weight of the warm water to solidify the coated dye; Dehydrating the hair dye by coagulation of the color dye by placing the hair comb in a shaded place for 30 to 40 minutes; Hanging the dehydrated comb in the drying chamber and the hot air at 80 ~ 90 ℃ 40 to 60 minutes to dry the moisture by the step of producing a hair comb comprising a step. The method of claim 1, Method of manufacturing a hair comb, characterized in that the step of forming a comb in the forming step of the comb is temporarily dyed by the step of the intermediate inspection from time to time whether the bubbles are difficult to identify with the naked eye.

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