KR102474226B1 - Mask earband dyeing method using food color - Google Patents

Abstract

The present invention provides a method of dyeing yarn for mask earbands using food coloring, which allows dyeing of ear bands of masks, which are parts in close contact with ears, in various colors using human-friendly food coloring. According to a preferred feature of the present invention, the acid leveling agent can include polyoxyethylene alkyl amine ether, and the pH sliding agent can be formed of ethyl formic acid.

Description

Yarn dyeing method for mask earband using food coloring {Mask earband dyeing method using food color}

The present invention relates to a method for dyeing yarn for mask earbands using food coloring, and more particularly, to the wearer's skin while dyeing the earband of a mask, which is a part in close contact with the ear, in various colors using human body-friendly food coloring. It relates to a method of dyeing yarn for mask earbands using food coloring, which can minimize trouble.

Masks cover the nose and mouth to prevent inhalation of dust or dust floating in the air.

In addition, the mask functions to prevent inhalation or scattering of germs or viruses, etc., and to prevent harmful substances from being inhaled into the human body through the respiratory system.

Accordingly, the mask can be used for health and hygiene to prevent colds, or for cold weather to protect the face from severe cold in winter that damages the skin due to cold air.

Such a mask mainly consists of a mask body made of cotton fabric or non-woven fabric to cover the nose and mouth while breathing, and an ear band sewn to both ends of the mask body to hang on the ears to fix the mask body.

However, most ear bands use white rubber thread cut to an appropriate length or an elastic polymer sheet cut into a hook shape.

Recently, products in various colors are being released to give a sense of fashion to masks, and it is necessary to implement various colors for ear bands. Food coloring, which is a matter of concern, is not able to properly implement these colors.

In order to minimize such skin troubles, it is possible to consider using food coloring harmless to the human body rather than chemical dyeing agents. However, with current technology, it is not easy to perform a dyeing process on yarn with food coloring.

Korean Patent Publication No. 2020-0109987

The present invention was created to solve these problems in view of the above-mentioned problems in the prior art, and it is possible to dye the ear band of the mask, which is a part in close contact with the ear, in various colors using human-friendly food coloring, and to minimize skin trouble. The purpose is to provide a method of dyeing yarn for mask ear bands using food coloring.

One aspect of the present invention, preparing a yarn; Winding the prepared yarn around the yarn cone by soft winding; At a temperature of 30 ° C. or less, injecting 2 parts by weight or less of food coloring, 0.1 to 2 parts by weight of a pH sliding agent and 0.1 to 2 parts by weight of an acid leveling agent based on 100 parts by weight of the yarn in a high-pressure machine; Putting a yarn cone into the high-pressure machine, injecting water according to a yarn input bath ratio, and then operating the pump motor for 5 minutes by setting the operating direction of the pump motor of the high-pressure machine to out-in; After changing the operating direction of the pump motor of the high-pressure machine to in-out, raising the temperature at a rate of 1.5 ° C./min until the internal temperature of the high-pressure machine reaches 60 ° C.; Maintaining the internal temperature of the high-pressure machine at 60 ° C and circulating for 5 minutes to improve leveling; Raising the internal temperature of the high-pressure machine to 110 ° C at a rate of 2 ° C / min, maintaining the internal temperature at 110 ° C and equalizing for 40 minutes; Cooling the internal temperature of the high-pressure machine to 90 to 95 ° C at a rate of 4 ° C / min after leveling; and washing with water and treating with an antistatic agent; It provides a method of dyeing yarn for mask ear bands using food coloring, comprising a.

According to a preferred feature of the present invention, the food coloring may be used alone or in combination with at least one of Blue No. 1, Yellow No. 4, and Red No. 102.

According to a preferred feature of the present invention, the acid leveling agent may include polyoxyethylene alkyl amine ether (Polyoxyethylene Alkil Amine Ether), and the pH sliding agent may be formed of ethyl formic acid.

According to a preferred feature of the present invention, a fixation treatment may be performed prior to treatment with the antistatic agent.

According to the present invention, since the mask earband can be dyed in a desired color using food coloring, by using edible dyes instead of chemical dyes, a high-quality earband that is more human-friendly, such as minimizing skin troubles, can be manufactured. There are effects that can be done.

1 is a flowchart sequentially showing a method of dyeing yarn for mask earbands using food coloring according to an embodiment of the present invention.
2 is a photograph showing a high pressure machine used in an embodiment of the present invention.
Figure 3 is a photograph showing the inside of the high-pressure machine of Figure 2.
4 is a photograph showing a yarn cone holding member having four yarn cones on which yarn is wound, respectively.

In order to fully understand the present invention, a preferred embodiment of the present invention will be described with reference to the accompanying drawings. Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the examples described in detail below.

In addition, 'include' a component throughout the specification means that other components may be further included, rather than excluding other components unless otherwise stated.

Regarding the food coloring used in the present invention, acid dyeing, reactive dyeing, disperse dyeing, and vat dyeing were applied to nylon DTY (draw textured yarn), respectively. As a result, food coloring was most suitable for acid dyeing using acid dyes, Accordingly, it was confirmed that the food coloring best matches the characteristics of the acid dye.

Accordingly, in the present invention, some of the contents of the acid dyeing method are introduced when dyeing yarn. However, the conventional acid dye is a product for dyeing, and a dyeing recipe is prepared for each product, but the recipe is not disclosed because the food coloring is not a product for dyeing.

In view of this, in one embodiment of the present invention, in the dyeing process, the acid leveling agent and the pH slide agent are added together to the food coloring, and the operating conditions of the high-pressure machine in which the dyeing is performed are limited to specific conditions to make the food coloring Even if the yarn is dyed with, it is possible to obtain an excellent color sense.

1 is a flowchart sequentially showing a method of dyeing yarn for mask earbands using food coloring according to an embodiment of the present invention.

Hereinafter, an embodiment of a method for dyeing yarn for mask ear bands using the food coloring of the present invention will be described.

Referring to FIG. 1 , in the method of dyeing the yarn for mask ear bands according to an embodiment, a process of preparing a yarn to be dyed is first performed (S10). In one embodiment, the yarn may preferably use nylon DTY.

Then, the yarn is wound around the yarn cone (32, cone: bobbin) for dyeing of the yarn cone holding member 30 shown in FIG. 4 (S20). At this time, soft winding is used. Here, the soft winding refers to an operation of slowing down the speed when winding the yarn around the cone 32 for dyeing so that the yarn is softly wound around the cone 32 for dyeing.

If the yarn is tightly wound around the yarn cone 32 for dyeing, the quality of the dyed yarn may deteriorate as the food coloring is not evenly applied to the yarn and some undyed portions occur during the dyeing process described later.

In one embodiment, the yarn is sparsely wound around the yarn cone 32 for dyeing by soft winding, so that the dyeing property of the finished yarn can be improved while the food coloring enters the surface of the yarn evenly and well during the dyeing process described later.

Next, as shown in FIGS. 2 and 3, a high-pressure machine 10 for dyeing is provided, and a heater 20 installed on the inner bottom surface of the high-pressure machine 10 is operated to In a state where the internal temperature is maintained at 30° C. or less, food coloring for dyeing the yarn is introduced into the high-pressure machine 10 (S30). At this time, the high-pressure machine 10 may be operated by raising the operating pressure from atmospheric pressure to 2 to 2.5 kgf/cm 2 .

In FIG. 4, unexplained reference numeral 31 denotes a support portion mounted on the heater 20 when the yarn cone holding member 30 is installed in the high pressure machine 10, and reference numeral 33 denotes the yarn cone holding member 30 attached to the high pressure machine 10. (10) shows the handle for putting in or taking out.

At this time, the food coloring may be used in powder form. In one embodiment, preferably, at least one of Blue No. 1, Yellow No. 4, and Red No. 102 may be used alone or in combination to create a color to be dyed as the food coloring.

However, the food coloring is not a product generally used for dyeing due to the nature of the food coloring. Accordingly, in one embodiment, an agent containing a pH slide agent and an acid leveling agent is added to the inside of the high-pressure machine 10 so that food coloring is used as a dye, but a proper dyeing effect is given to improve dyeability while realizing various colors. It is added together with food coloring (S40).

In this case, the food coloring may be used in an amount of 0.001 to 2 parts by weight based on 100 parts by weight of the yarn. If the content of the food coloring is less than 0.001 parts by weight with respect to 100 parts by weight of the yarn, the dyeing effect is not properly implemented, and if the content of the food coloring exceeds 2 parts by weight with respect to 100 parts by weight of the yarn, the dyeing effect is further improved It doesn't, it just increases the cost.

The acid leveling agent can play a role in preventing the initial disproportionate occurrence by giving an appropriate dyeing effect at the start of dyeing, and further enhancing the dyeing effect during boiling to impart excellent leveling properties to the yarn can do.

However, if only these acid leveling agents are used without adding the pH slide agent, the acid leveling agent attached to the yarn at the time of initial dyeing is not properly removed, resulting in a portion of the yarn that is not penetrated by food coloring, and thus food coloring A problem of non-uniform dyeing of the yarn may occur.

In one embodiment, the acid leveling agent may preferably be used in an amount of 0.1 to 2 parts by weight based on 100 parts by weight of the yarn.

If the content of the acid leveling agent is less than 0.1 parts by weight, the effect of reducing inflammation and enhancing the effect of dye transfer may not be properly implemented.

If the content of the acid leveling agent exceeds 2 parts by weight, the color quality of yarn may deteriorate and color fastness may be affected. Here, 'fastness' refers to the degree to which the color of dyed yarn can maintain color clarity in environments such as light and washing.

The acid leveling agent of one embodiment may include polyoxyethylene alkyl amine ether (Polyoxyethylene Alkil Amine Ether) and water, and has a pH of 7 to 9 as a transparent liquid.

In this case, the acid leveling agent may include 25 to 35% by weight of polyoxyethylene alkyl amine ether and 65 to 75% by weight of water.

The pH slide agent serves to express the color of the food color in the process of dyeing the yarn with the food color, and in one embodiment, the pH slide agent gradually changes the pH unlike glacial acetic acid, which causes a rapid pH change, so that the food color It can help to express the color of food coloring while minimizing association.

The pH slide agent may be used in an amount of 0.1 to 2 parts by weight based on 100 parts by weight of the yarn.

If the content of the pH slide agent is less than 0.1 parts by weight, a problem may occur in which the effect of allowing the food coloring to penetrate into the portion while removing the acid leveling agent is insufficient, and if the content of the pH slide agent exceeds 2 parts by weight, the Since the effect of the pH slide agent is no longer greatly improved, a problem of cost increase may occur.

In one embodiment, the pH slide agent may be formed of ethyl formic acid, also called ethyl ester, and has a boiling point of 52 to 54 ° C.

At this time, the reason why the food coloring is added when the temperature inside the high-pressure machine 10 is 20 ° C or less is that dyeing is performed in a process similar to acid dyeing in one embodiment. , 30 ℃ is set as the upper limit of the temperature to prevent the occurrence of defects such as dyeing spots or uneven dyeing in the initial dyeing process.

If the internal temperature of the high-pressure machine 10 exceeds 30° C. before adding food coloring to the high-pressure machine 10, the initial defect rate increases when it is dissolved after adding water described later, resulting in unbalanced dyeing. can cause At this time, more preferably, the internal temperature of the high-pressure machine may be 20°C.

Next, the yarn cone holding member 30 equipped with at least one yarn cone around which yarn is wound is installed inside the high pressure machine 10 so as to be positioned above the heater 20 .

In addition, water is injected into the high-pressure machine 10 according to the yarn input bath ratio, and the machine switch is set to out-in to operate the high-pressure machine 10 for 5 minutes to circulate water containing food coloring and additives to produce food The pigment is dissolved in water (S50).

Here, 'out-in' means turning the pump motor of the high-pressure machine 10 in the opposite direction to the forward direction, and the powdered food coloring can be completely dissolved in water by this out-in operation. If this is not done, the food coloring may be dyed to the yarn in a state in which it is not completely dissolved in water, resulting in defects.

At this time, a sufficient amount of water is injected so that all the yarns introduced into the high pressure machine 10 are submerged, and preferably 40L of water can be used for 10kg of yarn. If the work is performed without matching the yarn input bath ratio, there may be a part where the food coloring has not penetrated into the yarn during the dyeing process.

Next, after changing the mechanical switch of the high-pressure machine 10 to in-out, the temperature is raised at a rate of 1.5 ° C per minute until the internal temperature of the high-pressure machine 10 reaches 60 ° C (S60).

At this time, the temperature increase rate is 1.5 ° C. per minute, since food coloring has properties similar to general acid dyes, a temperature increase rate similar to that used when working with acid dyes is applied.

Here, 'in-out' is the opposite concept to the out-in described above, and means rotating the pump motor of the high-pressure machine 10 in the forward direction. this will be done

At this time, in order to improve the leveling property so that the yarn can be dyed well, it can be further circulated for 5 minutes while the internal temperature of the high pressure machine 10 is set to 60 ° C.

Each food coloring has a different boiling point. In the case of Yellow No. 4 and Red No. 102 used in one embodiment, dyeing proceeds at 50 to 60 ° C., and in the case of Blue No. 1, dyeing proceeds only at 110 ° C.

In view of this, the heater is then heated at a rate of 2 ° C. per minute to raise the internal temperature of the high-pressure machine 10 to 110 ° C., thereby reducing damage to the yarn as much as possible in preparation for the characteristics of acid dyes when dyeing food coloring. (S70). At this time, the mechanical switch of the high voltage machine is set to in-out.

At this time, the heating rate of 2 ° C. per minute is similar to that of acid dyes, since food coloring has properties similar to those of general acid dyes.

If dyeing is performed immediately at 60 ° C. without a temperature raising process, blue No. 1 is not properly dyed, so that after dyeing, the color is not properly implemented or the dyeability is greatly reduced. In one embodiment, since the dyeing process proceeds after the internal temperature of the high-pressure machine 10 is raised to 110 ° C., it is possible to prevent such a problem from occurring.

Next, while maintaining the internal temperature of the high-pressure machine 10 at 110 ° C., a leveling process of circulating the water in which the pigment is dissolved is performed for about 40 minutes to achieve excellent leveling and dyeing (S80).

And, after this leveling is completed, open the lid of the high-pressure machine 10 and cool the internal temperature of the high-pressure machine 10 to 90 to 95 ° C at a rate of 4 ° C per minute in order to check whether the dyeing is well done inside. (S90).

Next, after taking a sample from the dyed yarn to check whether the dyeing has been done properly, the dyed yarn is washed with water until it becomes clear water, and the water washing process is performed several times, preferably 3-4 times. can be implemented

At this time, if necessary, a fixing process may be performed (S100). In the fixing treatment, the fixing agent is introduced at 30 to 50 ° C, the temperature is raised to 70 ° C at a rapid rate, and the state is maintained for at least 20 minutes so that the fixation is completely achieved.

If the temperature during the fixing treatment is less than 30 ° C, a problem may occur in which the dye fixing is not properly performed, and when the temperature during the fixing treatment exceeds 50 ° C, a water loss phenomenon occurs, and rather, the dye fixing is not properly performed and the dyeing Quality deterioration may occur.

Next, the fixing treated yarn is washed with water, and antistatic treatment is performed by adding 1 to 2 parts by weight of an antistatic agent based on 100 parts by weight of the yarn.

Next, the yarn treated with water and antistatic agent is dehydrated to complete the yarn for mask ear band dyed with food coloring, and the process of packaging is performed. Then, the wrapped yarn is rewinded and shipped.

In addition, the earband of the mask worn on the ear when the mask is worn is manufactured using the dyed yarn. At this time, the color of the yarn may be the same as the color of the mask body, and if necessary, the yarn may be dyed in a color different from that of the mask body.

On the other hand, as a comparative example, an acid leveling agent and glacial acetic acid were added to dye the yarn with food coloring. However, in this case, the problem of dyed spots or discoloration occurs.

In one embodiment of the present invention, glacial acetic acid is not used, and a pH slide agent is used. The pH slide agent is neutral at low temperatures and has the property of being acidic when it reaches its boiling point.

The maximum boiling point of the food coloring used in one embodiment is estimated to be 100 ° C or higher, but is 110 ° C or lower. Accordingly, when dyeing, the temperature of the high-pressure machine 10 is raised to 110° C. to proceed with the operation.

In one embodiment, the pH slide agent becomes neutral at a low temperature, and in this state, the acid leveling agent adheres to the surface of the yarn.

And, when the pH slide agent is converted to acidity by reaching the boiling point of the food coloring, the acid leveling agent comes out of the fibrous tissue of the yarn. By this action, the yarn is dyed evenly with food coloring.

The present invention is not limited by the above-described embodiment and the accompanying drawings, but is intended to be limited by the appended claims. Therefore, various forms of substitution, modification, and change will be possible by those skilled in the art within the scope of the technical spirit of the present invention described in the claims, which also falls within the scope of the present invention. something to do.

10: high pressure machine
20: heater
30: Yarn cone mounting member
31: support
32: yarn cone
33: handle

Claims (4)

preparing yarn;
Winding the prepared yarn around the yarn cone by soft winding;
At a temperature of 30 ° C. or less, injecting 2 parts by weight or less of food coloring, 0.1 to 2 parts by weight of a pH sliding agent and 0.1 to 2 parts by weight of an acid leveling agent based on 100 parts by weight of the yarn in a high-pressure machine;
Putting a yarn cone into the high-pressure machine, injecting water according to a yarn input bath ratio, and then operating the pump motor for 5 minutes by setting the operating direction of the pump motor of the high-pressure machine to out-in;
After changing the operating direction of the pump motor of the high-pressure machine to in-out, raising the temperature at a rate of 1.5 ° C./min until the internal temperature of the high-pressure machine reaches 60 ° C.;
Maintaining the internal temperature of the high-pressure machine at 60 ° C and circulating for 5 minutes to improve leveling;
Raising the internal temperature of the high-pressure machine to 110 ° C at a rate of 2 ° C / min, maintaining the internal temperature at 110 ° C and equalizing for 40 minutes;
Cooling the internal temperature of the high-pressure machine to 90 to 95 ° C at a rate of 4 ° C / min after leveling; and
Washing with water and treating with an antistatic agent; Yarn dyeing method for mask ear bands using food coloring, comprising a. The method of claim 1, wherein the food coloring is at least one of Blue No. 1, Yellow No. 4, and Red No. 102 used alone or in combination. According to claim 1,
The acid leveling agent includes polyoxyethylene alkyl amine ether (Polyoxyethylene Alkil Amine Ether),
The pH slide agent is a method of dyeing yarn for mask ear bands using food coloring, characterized in that formed with ethyl formic acid. The method of claim 1, wherein a fixing treatment is performed prior to treatment with the antistatic agent.

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