KR102263123B1 - Method for produce of rubber gloves having inside bump - Google Patents

Abstract

The present invention relates to a method for producing a rubber glove having inner protrusions with excellent airflow and air permeability, and more specifically, to a method for producing a rubber glove having inner protrusions with excellent airflow and air permeability, in which a step of immersing a glove molding mold in liquid latex mixed with solid latex powder is included, such that protrusions are formed inside the glove by the solid latex powder to secure airflow and air permeability, thereby making it easy to put on or take off the rubber glove while avoiding the risk of explosion or adverse effects on the human body, and preventing moisture, caused by sweat generated inside thereof when used for a long time or water coming in from the outside, and subsequently suppressing the occurrence of eczema and the like.

Description

Manufacturing method of rubber gloves having internal protrusions with excellent air flow and ventilation {METHOD FOR PRODUCE OF RUBBER GLOVES HAVING INSIDE BUMP}

The present invention not only makes it easy to put on or take off the rubber glove by forming a protrusion inside the rubber glove to ensure air flow and breathability, but also prevents moisture caused by sweat or water coming in from the outside. To suppress the occurrence of eczema, etc., it relates to a method of manufacturing a rubber glove having an inner protrusion excellent in air flow and air permeability.

In general, since rubber gloves are in close contact with the skin when worn and used, air does not communicate smoothly, so sweat generated from the wearer's hands or water that has flowed into the glove during use cannot be easily discharged. For this reason, when the glove is not completely dried, it is easy to provide an environment in which mold or the like is likely to occur inside, which tends to cause problems such as eczema on the wearer's skin, etc., which tends to adversely affect hygiene. In addition, it is not easy to put on or take off the gloves because the air does not pass through.

In order to solve this problem, Patent Document 1 tried to impart slip properties to gloves by using a chlorination process. In Patent Document 2, etc., a hydrogel polymer solution is coated on the inner and outer surfaces of rubber gloves to impart slip properties when worn. It was intended to alleviate the problems caused by adhesion. However, there was a problem in that the durability and long-term lifespan of the gloves are adversely affected due to the mixing of foreign substances in these rubber gloves.

On the other hand, Patent Document 3 and Patent Document 4 describe the form of embossing to be formed on rubber gloves, and Patent Documents 5 and 6, etc. have a form of forming a protrusion on the inner peripheral surface of the rubber glove as shown in FIG. 1 . Although described, a manufacturing method for forming such embossing or protrusion, that is, a manufacturing method for actually realizing the embossing or protrusion and effectively functioning, is not described at all.

In addition, Patent Document 7 and Patent Document 8 mainly disclose air rubber gloves using pleats. However, according to these documents, a mold is manufactured and wrinkles are provided to the rubber glove by such a mold, and the cost associated with the production of the mold There is a problem of increase, and the texture is different from rubber gloves according to the protrusion shape.

In order to solve this problem, the applicant of the present invention has previously applied for and registered Patent Document 9. More specifically, Patent Document 9 provides a method of manufacturing a rubber glove having a protrusion formed therein so that air can flow so that the glove can be easily put on or taken off, a primary chlorine immersion step, a primary latex In the rubber glove manufacturing method comprising an immersion step, a secondary brine immersion step, a secondary latex immersion step, a vulcanization drying step, a water washing step after washing with acid and alkali, and a softening agent treatment step, a foaming agent, glacial acetic acid after the second latex immersion step , alcohols or gasoline in a weight ratio of 1: 10 to 40: 500 to 2000, dipping for 1 to 30 seconds to form a protrusion on the inside of the rubber glove manufacturing method has been proposed.

However, in the case of Patent Document 9, there is a problem that the explosion risk remains due to the oil vapor caused by the use of glacial acetic acid and alcohol, and when washing is not perfect, it may adversely affect the human body when in contact with the skin.

Patent Document 1: US Patent Publication No. 03411982 "Elastomeric article having a slip coating" Patent Document 2: British Patent Publication No. 0198514 "Dipped rubber article" Patent Document 3: Republic of Korea Public Utility Model Publication No. 20-1996-0006829 "Rubber Gloves for Radiation Protection" Patent Document 4: Korean Utility Model Publication No. 20-1995-0029213 "Rubber Gloves" Patent Document 5: Republic of Korea Registered Utility Model Publication No. 20-0215483 "Rubber Gloves for Work" Patent Document 6: Republic of Korea Patent Publication No. 10-1243581 "Manufacturing method of inner surface embossed rubber glove" Patent Document 7: Republic of Korea Patent Publication No. 10-2006-0114518 "Rubber Gloves" Patent Document 8: Republic of Korea Patent Publication No. 10-2006-0029174 "Air rubber gloves" Patent Document 9: Korean Patent Laid-Open Publication No. 10-2011-0121961 "Method for manufacturing rubber gloves with embossing" Patent Document 10: Republic of Korea Patent Publication No. 10-0665719 "Manufacturing method of rubber gloves containing silver nanoparticles"

The present invention is to solve the above problems, and includes a process of immersing a glove molding mold in liquid latex mixed with solid latex powder, so that protrusions are formed inside the glove by the solid latex powder to allow air flow and breathability This makes it possible to easily put on or take off rubber gloves without risk of explosion or adverse effects on the human body, as well as prevent moisture from internal sweat or water from the outside to prevent eczema. The task is to make it possible to suppress the occurrence of

The present invention is a first brine immersion step (S10), a first latex immersion step (S20), a second brine immersion step (S30), a second latex immersion step (S40), a vulcanization drying step (S50), acid and alkali washing In the rubber glove manufacturing method comprising a washing step (S60) and a softening agent treatment step (S70) after,

After the second latex immersion step (S40) further comprising a tertiary latex immersion step (S200),

The tertiary latex immersion step (S200) is characterized in that the solid latex powder is mixed with the tertiary latex to prepare a mixed latex, and then a molding mold is immersed in the mixed latex. A method of manufacturing rubber gloves having projections is used as a means to solve the problem.

Here, the solid latex powder preferably has a particle size of 0.01 μm to 150% of the thickness of the rubber glove.

In addition, the mixed latex, with respect to 100 parts by weight of the tertiary latex, 0.1 to 100 parts by weight of the solid latex powder is mixed, it is preferable that the viscosity is 20 to 60 millipascal seconds (mpa.s).

On the other hand, the present invention further comprises a tertiary brine immersion step (S100), before the tertiary latex immersion step (S200), wherein the tertiary brine immersion step (S100) is the second latex immersion step (S40). Preferably, the molding mold is again immersed in brine having a salinity of 10 to 20% for 5 to 20 seconds and then dried.

The present invention not only has the effect of making it possible to easily put on or take off the rubber gloves without causing the risk of explosion or adverse effects on the human body, but also to ensure air flow and breathability by forming protrusions inside the glove. It has the effect of suppressing the occurrence of eczema by preventing moisture caused by sweat or water coming in from the inside.

1 is a perspective view of a rubber glove having an inner protrusion according to Patent Document 5;
Figure 2 is a process flow chart showing a method of manufacturing a rubber glove having an inner protrusion excellent in air flow and breathability according to an embodiment of the present invention;
3 is a process flow chart showing a method of manufacturing a rubber glove having an inner protrusion having excellent air flow and air permeability according to another embodiment of the present invention;
Figure 4 is a schematic view showing the concept of the inner protrusion of the rubber glove excellent in air flow and breathability according to the present invention

The present invention for achieving the above effect relates to a method for manufacturing a rubber glove having an inner protrusion having excellent air flow and breathability, only the parts necessary for understanding the technical configuration of the present invention are described, and the description of other parts is this It should be noted that they will be omitted so as not to obscure the gist of the invention.

Hereinafter, a method of manufacturing a rubber glove having an inner protrusion having excellent air flow and air permeability according to the present invention will be described in detail as follows.

The present invention, as shown in Figures 2 and 3, the first brine immersion step (S10), the first latex immersion step (S20), the second brine immersion step (S30), the second latex immersion step (S40), In a rubber glove manufacturing method comprising a vulcanization drying step (S50), an acid and alkali washing followed by a water washing step (S60) and a softening agent treatment step (S70), including a tertiary latex immersion step (S200) (see FIG. 2) Or, it is characterized in that it is made by including the tertiary brine immersion step (S100) and the tertiary latex immersion step (S200) (see FIG. 3).

Therefore, first, the characteristic part of the present invention will be described after explaining the rubber glove manufacturing method of step S10 to step S70.

The first brine immersion step (S10) is a step of immersing the molding mold in brine having a salinity (the amount of salt dissolved in water) of 12 to 18% for 5 to 15 seconds and then drying,

The first latex immersion step (S20) is a step of immersing the molding mold immersed in the first brine in the first latex for 10 to 30 seconds and then drying,

The second brine immersion step (S30) is a step of immersing the molding mold again in brine having a salinity of 10 to 20% for 5 to 20 seconds and then drying,

The secondary latex immersion step (S40) is a step of immersing the molding mold immersed in secondary brine in the secondary latex for 10 to 50 seconds and then drying,

The vulcanization and drying step (S50) is a step of removing the rubber gloves from the molding mold and drying them,

After the acid and alkali washing, the water washing step (S60) is a mixed acid solution in which water, hypochlorous acid and hydrochloric acid are mixed in a weight ratio of 1,000: 1: 0.5 to 1,000: 5: 2 for rubber gloves, 0.5 to 5 weight per 100 parts by weight of latex Rotate for 20 to 50 minutes while spraying the rubber gloves in an amount of negative, and then spray with a neutralizing agent mixed with water and caustic soda in a weight ratio of 1000: 0.5 to 1000: 2 in an amount of 0.5 to 5 parts by weight per 100 parts by weight of latex 5 to After rotating for 200 minutes, it is a step of washing with water,

In the softening agent treatment step (S70), after washing with water, a softening agent in which silicone and wax are mixed in a weight ratio of 1:1 to 1:2 is added in an amount of 0.25 to 2 parts by weight per 100 parts by weight of latex, and then maintained at a temperature of 60 to 80° C. It is a step of rotating for 40 to 70 minutes, and then air cooling.

Here, the manufacturing method and manufacturing conditions of the rubber glove and the composition of the material to be used are not necessarily limited to the above, and may vary depending on the type of rubber glove, the use environment and the object of use.

On the other hand, in the first latex immersion step (S20), the first latex composition that can be used can be used generally used in the manufacture of rubber gloves, for example, with respect to 100 parts by weight of natural rubber latex, sulfur It is prepared by uniformly mixing 4 to 8 parts by weight and 0.2 to 0.5 parts by weight of the pigment.

And the secondary latex composition used in the secondary latex immersion step (S40) can also be used that is generally used in the manufacture of rubber gloves, for example, 4 to 8 parts by weight of sulfur based on 100 parts by weight of natural rubber latex , It can be prepared by uniformly mixing 0.05 to 0.5 parts by weight of fat sugar (white powder), raising the temperature to 50 to 70° C., and then aging for 1 day. In addition, the latex composition as described above may use the latex composition according to Patent Document 10 pre-registered by the applicant of the present invention.

On the other hand, when the use and composition content of the primary and secondary natural rubber latex is less than the lower limit of the above content, the physical properties such as tensile strength and elongation, which are intrinsic properties of rubber properties due to the lack of the content of natural rubber latex, are There is a risk that the soft feel may be reduced with deterioration, and when the content exceeds the upper limit of the content, moldability is deteriorated due to excessive use of natural rubber latex, and there is a risk of deterioration of the physical properties of rubber because sufficient vulcanization is not performed have.

The present invention is made by including the third latex immersion step (S200) as shown in FIG. 2 in the method for manufacturing rubber gloves as described above, or the third brine immersion step (S100) as shown in FIG. ) and a tertiary latex immersion step (S200).

Here, the third brine immersion step (S100) is a step of immersing the molding mold that has undergone the second latex immersion step (S40) in brine having a salinity of 10 to 20% for 5 to 20 seconds and then drying. If it is out of the above range, there is a fear that the third latex immersion step (S200) to be described later may not be properly performed.

The tertiary latex immersion step (S200) is made by mixing a solid latex powder formed by crushing the solid latex with the tertiary latex to prepare a mixed latex, and then immersing the molding mold in the mixed latex for 10 to 50 seconds.

Here, the tertiary latex has the same composition as the above-described secondary latex composition, and the solid latex powder (natural rubber latex powder) has a particle size of 0.01 μm to 150% of the rubber glove thickness.

And the mixed latex made by mixing the solid latex powder with the tertiary latex is mixed with 0.1 to 100 parts by weight of the solid latex powder with respect to 100 parts by weight of the tertiary latex, and the viscosity is 20 to 60 millipascal seconds (mpa.s) it is preferable

Here, when the particle size of the solid latex powder is less than 0.01 μm, the size of the formed protrusions is small and there is a risk of insufficient securing of breathability, etc., and when the particle size exceeds 150% of the glove thickness, it is difficult to attach the particles and when taking There is a risk of tearing and the like. On the other hand, the form of the solid latex powder is not limited to a specific form, but a spherical form is preferable.

And in the production of the mixed latex, if the content of the solid latex powder is less than 0.1 parts by weight, there is a risk of insufficient securing of air permeability, and when it exceeds 100 parts by weight, adhesion is not ensured, so it is difficult to form protrusions, and the phenomenon of tearing during handling may occur.

In addition, when the viscosity of the mixed latex is less than 20 millipascal seconds (mpa.s), the solid latex powder cannot be held due to the flow of the latex liquid, and there is a risk of poor protrusion formation due to poor adhesion, and 60 millipascal seconds If it exceeds (mpa.s), it is difficult to disperse the solid content, so there is a risk of insufficient securing of air permeability due to agglomeration.

On the other hand, as shown in FIG. 4, in the protrusion formed by the above method, the depth (1) between the mountain and the valley is preferably 0.05 μm or more (for example, 0.05 to 0.9 μm), and when it is less than 0.05 μm, air There is a fear that it may not be easy to put on or take off the gloves because the flow of the gloves is not smooth, and if the protrusions are too large, the effect similar to that of the thickened rubber gloves may cause inconvenience in wearing and working. In addition, the space|interval between projections is not specifically limited.

Hereinafter, the present invention will be described in more detail by way of Examples. However, these examples are only presented to understand the content of the present invention and should not be construed as limiting the scope of the present invention to these examples.

1. Manufacture of rubber gloves

A primary latex composition was prepared by uniformly mixing 1000 g of natural rubber latex, 5 g of sulfur, and 0.4 g of a pigment. Then, 1000 g of natural rubber latex, 5 g of sulfur and 0.3 g of fat sugar (white powder) were uniformly mixed, the temperature was raised to 55° C., and then aged for 1 day to prepare a second latex composition and a tertiary latex. In addition, it was prepared by crushing the solid latex. And after immersing the molding mold in brine having a salinity of 15% for 12 seconds, rotate the molding mold and keep it for 30 minutes to dry the brine (S10), and then immerse the molding mold in the first latex composition for 15 seconds. After rotating the molding mold, it was maintained for 6 minutes (S20). Next, the molding mold is again immersed in brine having a salinity of 16% for 15 seconds and then the molding mold is rotated and maintained for 35 minutes to dry the brine moist (S30), and then immersed in the secondary latex composition for 30 seconds. After rotating the molding mold, it was maintained for 40 minutes and dried to form rubber gloves on the molding mold (S40). Next, the molding mold on which the rubber gloves are formed is immersed in brine having a salinity of 15% mentioned above for 12 seconds (S100), then immersed in the prepared mixed latex for 30 seconds, and then while rotating the molding mold for 40 minutes It was maintained and dried to complete the formation of rubber gloves in the molding mold (S200). Then, after dislocating the rubber glove from the molding mold and drying it completely (S50), 40 g of a mixed acid solution of 1,000 g of water, 5 g of hypochlorous acid, and 2 g of hydrochloric acid is sprayed on the rubber glove, and again 1000 g of water and 2 g of caustic soda 40 g of the mixed alkali solution was sprayed on rubber gloves, rotated for 30 minutes, and washed with water for 1 hour (S60). The rubber gloves thus obtained were put in a dryer, 1 g of a softener in which silicone and wax were mixed in a 1:1 ratio was added, and then rotated for 60 minutes while maintaining at 60° C., and cooled to room temperature (about 15 to 25° C.) (S70).

Here, the particle size of the solid latex powder, the composition of the mixed latex (content of the solid latex powder with respect to the tertiary latex) and the viscosity of the mixed latex are as shown in [Table 1] below.

And finally, the protrusion formation and bursting of the obtained rubber gloves were checked, the ease of detachment and the strength of the rubber gloves were evaluated, and the results are shown in [Table 1] below. The evaluation criteria are as follows.

- Depth between the peak and valley of the protrusion: × if less than 0.05㎛, ○

- Broken protrusion: × if there is a bump on the bump, ○ if there is no bump on the bump

- Ease of attaching and detaching gloves: When removing gloves by straightening hands and pulling them off, if the length of the glove is less than 0.1% of the length of the rubber glove, ○, if it is greater than, X

- Glove strength: ○ If the shape of the rubber glove is good even if it is stretched 5 times when it is stretched out after holding the tip of the thumb and ring finger and released, × if there are traces of scratches, tears or holes

division manufacturing conditions quality solid content
latex
size solid content
Latex content
(compared to tertiary latex) latex
Viscosity
(mpa.s) obstetric bone
between
depth spin
burst Glove removal
ease burglar Comparative Example 1 0.009㎛ 50 parts by weight 40 X O X O Example 1 0.01㎛ 50 parts by weight 40 O O O O Example 2 150% of rubber glove thickness 50 parts by weight 40 O O O O Comparative Example 2 151% of rubber glove thickness 50 parts by weight 40 O X O X Comparative Example 3 1.0㎛ 0.09 parts by weight 40 X O X O Example 3 1.0㎛ 0.1 parts by weight 40 O O O O Example 4 1.0㎛ 100 parts by weight 40 O O O O Comparative Example 4 1.0㎛ 101 parts by weight 40 O X O X Comparative Example 5 1.0㎛ 50 parts by weight 19 O X X X Example 5 1.0㎛ 50 parts by weight 20 O O O O Example 6 1.0㎛ 50 parts by weight 60 O O O O Comparative Example 6 1.0㎛ 50 parts by weight 61 O X O X

As can be seen from [Table 1], the method for manufacturing a rubber glove having an inner protrusion having excellent air flow and air permeability according to the present invention is capable of producing a rubber glove having good protrusion and excellent quality within the scope of the claims. However, if it is out of the above range, it is not possible to form sufficient protrusions with good ventilation, so detachment is not easy, and the protrusion bursting phenomenon occurs, and in some cases, it can be confirmed that rubber gloves with insufficient strength are obtained. .

As described above, the method for manufacturing a rubber glove having an inner protrusion having excellent air flow and breathability according to the present invention has been described through the above preferred embodiment, and the superiority thereof has been confirmed, but those skilled in the art can claim the following patent It will be understood that various modifications and variations of the present invention can be made without departing from the spirit and scope of the present invention as described in its scope.

Claims (5)

The molding mold is immersed in brine having a salinity of 12 to 18% for 5 to 15 seconds and then dried, a first brine immersion step (S10); After immersing the molding mold immersed in the primary brine in the primary latex for 10 to 30 seconds and then drying, a primary latex immersion step (S20); A second brine immersion step (S30) of immersing the molding mold again in brine having a salinity of 10 to 20% for 5 to 20 seconds and then drying; A secondary latex immersion step (S40) of immersing the molding mold immersed in the secondary brine in the secondary latex for 10 to 50 seconds and then drying; A vulcanization drying step (S50) of removing and drying the rubber gloves from the molding mold; The rubber gloves are mixed with water, hypochlorous acid, and hydrochloric acid in a weight ratio of 1,000: 1: 0.5 to 1,000: 5: 2 and sprayed on the rubber gloves in an amount of 0.5 to 5 parts by weight per 100 parts by weight of latex 20 to 50 After rotating for 5 to 200 minutes while spraying a neutralizing agent mixed with water and caustic soda in a weight ratio of 1000: 0.5 to 1000: 2 in an amount of 0.5 to 5 parts by weight per 100 parts by weight of latex, rotating for 5 to 200 minutes, acid and alkali Washing after washing step (S60); And after washing with water, a softening agent in which silicone and wax are mixed in a weight ratio of 1:1 to 1:2 is added in an amount of 0.25 to 2 parts by weight per 100 parts by weight of latex, and then rotated for 40 to 70 minutes while maintaining a temperature of 60 to 80° C. In the rubber glove manufacturing method comprising; and then air-cooling, a softening agent treatment step (S70),
After the secondary latex immersion step (S40) further comprising a tertiary brine immersion step (S100) and a tertiary latex immersion step (S200),
The third brine immersion step (S100) is immersed in brine having a salinity of 10 to 20% again for 5 to 20 seconds, followed by drying the molding mold that has undergone the second latex immersion step (S40).
In the tertiary latex immersion step (S200), 0.1 to 100 parts by weight of a solid latex powder is mixed with respect to 100 parts by weight of the tertiary latex to prepare a mixed latex having a viscosity of 20 to 60 millipascal seconds (mpa.s), It is made by immersing the molding mold in the mixed latex,
The solid latex powder has a particle size of 0.01 μm to 150% of the thickness of the rubber glove,
The first latex used in the first latex immersion step (S20) is made by mixing 4 to 8 parts by weight of sulfur and 0.2 to 0.5 parts by weight of a pigment with respect to 100 parts by weight of natural rubber latex,
The secondary latex used in the secondary latex immersion step (S40) is mixed with 4 to 8 parts by weight of sulfur and 0.05 to 0.5 parts by weight of sugar in the form of white powder with respect to 100 parts by weight of natural rubber latex, and 1 at 50 to 70° C. It is made by aging for a day,
The protrusion formed by the above method is characterized in that the depth (1) between the mountain and the valley is 0.05 to 0.9 μm, a method of manufacturing a rubber glove having an inner protrusion having excellent air flow and breathability. delete delete delete delete

Images