KR101188675B1 - Method for manufacturing clean glove with double film structure - Google Patents

Abstract

PURPOSE: A method for manufacturing sanitary gloves is provided to improve sanitation and to facilitate the detachment thereof. CONSTITUTION: A method for manufacturing sanitary gloves is as follows. A wood polymer composite is prepared by mixing putting a liner composition into a mixer, mixing the composition, and compounding the composition. An inner film mixing compound is prepared by mixing the wood polymer composite with polyethylene resin. An outer film mixing compound is prepared. A double film with different inner side and outer side is formed by simultaneously extruding an inner film mixing compound and an outer film mixing compound. Sanitary gloves are completed by cutting the double film.

Description

Sanitary gloves manufacturing method with double film structure {METHOD FOR MANUFACTURING CLEAN GLOVE WITH DOUBLE FILM STRUCTURE}

The present invention manufactures a sanitary glove having a double film structure consisting of an inner film having a natural feel of paper and linear film in the direction of MD (Machine Direction) and complementing durability and an outer film having breathability The present invention relates to a method for producing sanitary gloves, in particular, having a double film structure that is easy to remove and wear and which has excellent antibacterial and breathable properties.

In general, when making food at home or restaurant, hygiene gloves worn on the hands for the purpose of protecting the hands from hygiene or various seasonings are usually made of vinyl, and cut into two unfolded hands. It is produced by joining two vinyls along the cut line.

If you wear these hygiene gloves, food will not get on your hands, it is not only hygienic but because the gloves are made of thin vinyl, you can work without wearing a glove.

However, such sanitary gloves are settled on only disposable or ultra-low cost products, ignoring various consumer desires and potential complaints.

Normally, the consumers take out the sanitary gloves as needed from the dispense of 50-100 pack-in, but the upper and lower openings are formed because they are formed into a thin film having a thickness of 10-30 μm. The proximal ends are so close to each other that it is not easy to open the openings, and even if the hands can be opened, if the hands have some sweat or moisture, they are adsorbed as soon as they touch the thin film. It is never easy to wear it, and if you try to wear it a little bit, you will see a frustration that the glove film stretches or tears.

Therefore, the supplier is always asking for the precautions to be worn after removing the hand and sweat, or even supplying sanitary gloves that are slightly larger than the size of the hand of the consumer, I have no choice but to have looseness.

However, these inconveniences of consumers are not limited only to the method of wearing, but since the airtightness and watertightness are maintained due to the nature of the hygiene gloves, the hygiene gloves stick to the hands because they do not have an air circulation at the same time as they wear. The sticking has a very unpleasant and damp feeling of wearing, breathability and antimicrobial inferiority caused a problem that causes housewife eczema, bark, etc. for a long time wearer.

In addition, since there are many sealing lines due to the processing characteristics of the glove, there is a inconvenience in that the external moisture and other liquid substances penetrate into the glove due to the burst of the sealing line of the finger portion during use.

In order to improve this, in Patent Publication No. 2004-0018756, there is an example in which a hygroscopic pad is attached inside the sanitary gloves to absorb sweat or moisture, but manufacturing costs are increased, manufacturing is complicated and difficult, and breathability is still maintained. Because it is not secured, antimicrobial activity is not a fundamental solution. As another example, there is an example in which double sanitary gloves are implemented by laminating heterogeneous materials (nonwoven fabric, paper, etc.) with polyethylene resin, such as Korean Patent No. 0304325, Korean Patent No. 0465465, and Patent Publication No. 2010-0126051.

However, these examples have the disadvantage that the lamination area easily falls when the material is so heterogeneous that the lamination is poor, and even though it has a plurality of layered structures, the breathability can be expected because the sheath is composed of only polyethylene resin. Is not a structure.

Therefore, even if it contains an antimicrobial substance, such as Unexamined-Japanese-Patent No. 2010-0126051, since it is not breathable eventually, it faces the limit that it is difficult to express antibacterial function.

The present invention was created in view of the above-described problems in the prior art, and the sanitary gloves are composed of a double film structure, but the main material is made of polyethylene resin, both the inner and outer shells, so as to increase the lamination and increase the lifespan. However, by varying the additives added to each of the endothelium and the outer shell, the polyethylene resin is used to ensure sufficient breathability and contain antimicrobial substances to further increase hygiene, and further, linear fine wrinkles or fine irregularities in the direction of desorption to the endothelium. It has a double film structure that makes it easy to detach and form because it has a natural texture of paper feeling, and it has a high sealing line due to the characteristics of the glove, and improves the sealing processability to solve the difficulty of securing durability of the product. Water to increase the durability of the film A method to provide the sanitary glove having a suitable thickness has its main objective.

The present invention is a means for achieving the above object, dried wood powder: 40-50% by weight, calcium carbonate: 10-15% by weight, antibacterial: 1-4% by weight silica: 1-3% by weight, light calcium carbonate: To prepare a WPC (Wood polymer Composite) by putting the endothelial composition consisting of 3-5% by weight, antioxidant: 0.3-1% by weight and the remaining polyethylene resin in a stirrer, stirring and compounding at a speed of 30-60 rpm for at least 30 minutes. In addition, 40-50% by weight of the WPC and 50-60% by weight of the polystyrene resin were combined to form an inner film mixed composition, and 6-10% by weight of calcium carbonate, a lubricant: 0.1-0.3% by weight, an antiblocking agent. : 0.1-0.4% by weight of the skin composition consisting of the remaining polyethylene resin and a stirring step of at least 20 minutes at a rate of 50-70rpm to form a film mixture composition for the outer surface; The inner film mixed composition and the outer surface of the inner film mixed composition and the outer film mixed composition respectively blended through the compounding step through a double extruder having an inner die and an outer die to form an outer skin and the outer die to form an outer skin. Double film forming step of forming a double film with different inner and outer surfaces by blowing while blowing the film mixture composition for simultaneous blowing; A sanitary glove manufacturing step of completing the sanitary gloves by stretching the dual film manufactured by the dual film forming step in a short axis or long axis direction to increase air permeability and sealing the cut in a state in which the sanitary glove maker is disposed; It provides a sanitary glove manufacturing method having a double film structure, characterized in that consisting of.

At this time, in the compounding step, the antimicrobial agent included in the inner film mixture is a bacteside, the lubricant contained in the outer film mixture is polyalcohol and the antiblocking agent is characterized in that the stearic acid amide.

In addition, in the double film forming step, by forming a fine groove in the MD (Machine Direction) direction on the outer side of the inner die to express a fine linear wrinkles on the surface of the endothelium, using wood powder added WPC natural paper feeling There is also a feature in that fine irregularities are formed to have a texture.

According to the present invention, the sanitary glove expresses the natural texture of the paper feeling expressed by wood powder and calcium carbonate to form fine unevenness, and has a surface characteristic of forming a fine linear wrinkle through the die groove, and the outer surface is breathable The material and specifications of the film for glove manufacturing are important factors in order to prevent the discomfort and discomfort, discomfort, and finger line sealing line bursting, so that the user does not have inconvenience in use. ,

In addition, in order to maintain durability considering the thickness and sealing processability of the film for glove manufacturing, the film is limited to a thin film within the range of 10 to 30 μm and manufactured to increase durability through constituent materials and processing technology, thereby improving the physical properties of the glove. It satisfies the conditions of proper tensile strength, tear strength, joint strength, stretch ratio to maintain and, above all, the sealing property, which is the mechanical property of the glove, which has many sealing lines.

In addition, the surface irregularities are formed through fine linear wrinkles or additives such as wood powder and calcium carbonate formed on the endothelium for ease of desorption, discomfort and heterogeneity, and have different inner and outer surfaces with fine linear wrinkles and surface irregularities. The structure is easy to remove the glove, and breathability is ensured, as well as the antimicrobial agent is applied so long time use does not bark, eczema does not occur, it is possible to obtain an excellent hygiene effect.

Hereinafter, preferred embodiments according to the present invention will be described in detail.

Before describing the present invention, the following specific structural or functional descriptions are merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms, And should not be construed as limited to the embodiments described herein.

In addition, the embodiment according to the concept of the present invention can make various changes and have various forms. However, this is not intended to limit the embodiments in accordance with the concept of the present invention to a specific disclosed form, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

The sanitary gloves having a double film structure according to the present invention is composed of an inner skin and an outer skin having a different surface texture and composition, and includes calcium carbonate and wood flour to maintain air permeability to have fine pores and uneven surface of the endothelial surface. It is composed.

In addition, the sanitary gloves having a double film structure according to the present invention is configured to maintain breathability by the micro-pores secured by calcium carbonate and wood powder.

Furthermore, the sanitary gloves having a double film structure according to the present invention includes a bacteside, which is an antimicrobial agent, in order to increase antimicrobial properties, and the main material of the inner and outer skins is the same as polyethylene resin, and the inner and outer surface raw materials are melted into a separate inlet to die. Since the inner and outer surfaces of the molten resin are previously laminated, the inner and outer surfaces are not separated and allow long life.

In addition, the sanitary gloves having a double film structure according to the present invention includes a bubble stabilizer, a lubricant and an antiblocking agent, in addition to excellent lamination, has the advantage of improving the surface uniformity, processability and the like.

Moreover, the inner skin constituting the sanitary gloves having a double film structure according to the present invention is formed on the inner surface, that is, opposite inner surface that is laminated with the outer skin, fine wrinkles and surface irregularities are formed in the MD (Machine Direction) direction, so that the wearer can easily detach them. It is configured to be.

The texture and function of the surface of sanitary gloves manufacturing is also important, but above all, maintaining durability considering the film thickness and sealing processability is an important factor so that the user does not have any inconvenience in using, so that there is no dissimilarity or bursting when wearing it. Glove film is manufactured by limiting the size of film within 10 ~ 30㎛ range, but suitable tensile strength, tear strength, joint strength, elasticity and condition of glove with many sealing lines. As a mechanical property, the sealability must be met.

More specifically, the sanitary gloves having a double film structure according to the present invention is composed of a double film structure in which the endothelial and the outer skin is laminated, the endothelial and the outer skin are respectively composed as follows.

First, it looks at the inner film mixture composition for making the endothelium.

Endothelial includes wood flour, which has a certain amount of process moisture even in its natural state, and thus requires a process that maintains a water content of 200 ppm or less through a pretreatment process because it reduces workability during extrusion.

At this time, a wax is used to prevent moisture absorption, and in particular, in the present invention, it is preferable to select soybean oil having a smoke point of 256 ° C in view of the processing temperature.

Therefore, prior to constructing the inner film mixture composition according to the present invention, a pretreatment step should be performed, and the pretreatment step is mixed with 10 to 15 parts by weight of soybean oil in 100 parts by weight of wood powder for 30 minutes at a speed of 50 ~ 100rpm in the blender Refers to making dried wood powder.

Then, using the dried wood powder thus made to constitute the inner film mixture composition according to the present invention.

The inner film mixed composition according to the present invention is dried wood powder: 40-50% by weight, calcium carbonate: 10-15% by weight, antibacterial agent: 1-4% by weight silica: 1-3% by weight, light calcium carbonate: 3-5 A blending process of putting the endothelial composition consisting of weight%, antioxidant: 0.3-1 weight% and the remaining polyethylene resin in a stirrer and stirring at a speed of 30-60 rpm for at least 30 minutes; Manufacturing the WPC (Wood polymer Composite) by extruding the blended mixture in a compounding machine; Drying the prepared WPC at a temperature of 60 ° C. for 4 to 5 hours after dehumidifying and measuring the moisture content with a moisture meter to dry the moisture content below 200 ppm; It is formed through the process of blending 40-50% by weight of WPC and 50-60% by weight of polyethylene resin.

In this case, wood flour is selected from pine and cottonwood among conifers or deciduous trees for the formation of surface irregularities, but 200 mesh (74㎛) granules are made of individual wood materials by grinding cottonwood powder suitable for maintaining workability and whiteness. This uniform fine powder should be used, but it must pass through 100 mesh (140㎛) AMI installed in the extruder melting cylinder to prevent carbonization due to the inside of the cylinder and prevent clogging of the AMI so that the smooth extrusion blowing process can be performed. Because there is.

In addition, the film is smoothly formed only by extrusion in a dry state at a moisture content of 200 ppm or less. Therefore, wood pretreatment should be carried out to lower the moisture content and enhance hygiene.

Then, the endothelial composition is placed in a stirrer, stirred and blended for 30 minutes or more at a speed of 30-60 rpm, and compounded at a melting temperature of 100-150 ° C., but must be made of WPC through an air-cooled cooling method and a temperature of 4 ° C. at 60 ° C. in a dehumidifying dryer. 5 hours by dehumidifying and drying for 5 hours and further mixing 40-50% by weight of WPC and 50-60% by weight of polyethylene resin through a hopper loader connected to the dehumidifying dryer to prevent the absorption of water scattered in the air. Each film is quickly transferred to an endothelial raw material container mounted on a two-layer extruder, and a heat dryer installed separately at the bottom of the extruder raw material is heat-treated to heat the raw material to be suitable for melting conditions.

In the present invention, the use of wood powder has a natural texture by forming fine grains on the inner surface, so that it does not stick to the hand and is added to maintain pores and improve heat resistance with calcium carbonate to ensure breathability.

In other words, wood flour is a cellulose material obtained from nature, and is evenly blended with calcium carbonate and polystyrene resin to reduce friction between the compounding composition and the support material, thereby eliminating problems such as curling, bending, and the like. It improves heat-processability and the like, improves heat resistance and strength of the film, exhibits a natural feel of paper, and maintains fine pores to ensure air permeability.

To this end, in the present invention, the dry wood powder should be added in the range of 40-50% by weight, if less than 40% by weight, not only the fine texture of natural texture is not formed, but the air gap is difficult to form, the air permeability is reduced, 50 weight Exceeding the% should result in poor workability, poor adhesiveness, lower elongation, and lower stability, so it should be added in the above range.

In particular, there are oak, pine or cottonwood powders that are inexpensive and easily available, but oak is rich in color, so it is difficult to use unless it is dark. Pine powder contains traces, but it may contain rosin. It is not recommended to use because it is large, cottonwood powder is light and good whiteness, so 40 to 50% by weight is used alone to express the color.

Calcium carbonate is added to improve dispersibility and breathability through blending with wood powder, and to improve the slip property of the film by reducing the coefficient of friction.

In the present invention, calcium carbonate should be added in the range of 10-15% by weight, if excessive, the specific gravity becomes high and heavy, and durability is significantly reduced, so it should be added in the above range.

In addition, the antimicrobial agent is preferably soda (sodium bicarbonate) or bacteside, which is an inorganic antibacterial agent developed by inorganic antibacterial company C & C (representative Shin Dong-cheol), and does not change color even when exposed to light such as sunlight. Since there is a characteristic not to buy it to be used, it is preferred to add 1-2% by weight.

Silica promotes amorphous crystallization as silicon dioxide. In the present invention, a small amount of 1-3 wt% is added.

Light calcium carbonate has anti-glare (anti-glare) and impact resistance, improve the activity, improve the scratch resistance and abrasion resistance to excellent surface improvement, in the present invention is added 3-5% by weight.

Antioxidants may be added 0.3-1% by weight to enhance the durability of the film, it may be sorbitol, glycerin or hydroquinone.

And, the polyethylene resin consisting of the main components other than these components is a known basic component for sanitary gloves.

Next, look at the outer film mixed composition for making the outer shell.

The outer film mixture composition is 6-10% by weight of calcium carbonate, 0.1-0.3% by weight of lubricant, 0.1-0.4% by weight of antiblocking agent and the remaining polyethylene resin composition in a stirrer at a speed of 50-70 rpm. It is formulated by stirring and mixing for at least minutes.

In this case, a pigment may be further added to the skin composition to implement color.

Calcium carbonate in the skin composition having such a composition is the same as the endothelial described above, but unlike the inner skin in the amount of addition, the outer skin must also be breathable, but watertightness is also one of the important factors, so there is no addition of wood flour and the amount of addition of calcium carbonate should be reduced. Preference is given to adding -10 wt%.

In addition, the lubricant is to secure the tension that the outer shell should have and to improve the melt flow during processing, talc is preferred in the present invention, and when added in a small amount because it is easy to discolor as well as discoloration at the time of excessive addition It is not effective and should be added in the range of 0.1-0.3% by weight.

In addition, the antiblocking agent is a substance added to improve the opening property of the film, stearic acid amide is preferred, and when excessively added, it causes film surface defects and transparency decreases, and has an active property due to reaction with calcium carbonate. In view of the fact that calcium carbonate is being added, it is preferably added in the range of 0.1-0.4% by weight.

Subsequently, the step of injecting the endothelial film mixture composition and the outer skin film mixture composition thus prepared into the inner and outer raw material containers of the two-layer extrusion film machine is performed.

At this time, the endothelial film mixture composition is introduced into the extruder through a dehumidifying and drying process, and the outer skin film mixture composition is added to the extruder immediately after blending to form a linear wrinkle on the inner surface, and spaced apart from the inner dice. When the two die extruders each having an outer die forming an outer shell, that is, the inner dies are extruded and blown at the same time so that the inner film blending composition enters the outer die and the outer film blending composition enters the two compositions, As a result of this lamination, a double film having different inner and outer surfaces is formed.

In this case, the endothelial, ie, the inner film is extruded, so that a fine uneven surface having linear wrinkles or natural textures is formed on one side of the inner film, so that the inner film does not stick to the detachable and thus easy to detach.

More specifically, the inner film mixture composition injected into the fuel container has a temperature of 80 ° C. in a heat dryer installed at the bottom of the fuel container to increase the temperature of the raw material to be suitable for the melting condition of the cylinder, thereby minimizing the moisture content rate, and preventing gas generation and water generation in advance. Melting to 120 ~ 170 ℃ temperature in the extrusion cylinder through a heat treatment process to control to and then blow through the inner die; The external film mixture composition flows directly from the raw material container into the cylinder without any additional processing, melts at a temperature of 140-190 ° C through the extrusion cylinder, and blows through the external die to make the inner and outer surfaces laminated. Particular preference is given to making films with

That is, the inner die forming the inner film is laminated with the outer film to be blown at the same time while forming a fine linear wrinkle in the MD direction through fine grooves densely dug in the blowing direction manufactured by the self-design. Forming a double film having different linear wrinkles and irregularities on the inner surface thereof; Uniaxially or biaxially stretching the dual film produced through the dual film forming step to increase tensile strength and increase breathability in the MD direction; Manufacturing the sanitary gloves by sealing and cutting the state in which the prepared film is disposed in the sanitary gloves maker;

As such, the dual film sanitary gloves according to the present invention is not a completely heterogeneous material of the endothelium and the outer shell, but because only the additives are different from each other. To improve.

In this way, the prepared double film is stretched in the uniaxial or long axis direction to maximize the air permeability, and then seal cutting in a state in which the double film manufactured by the manufacturing method according to the present invention in the glove manufacturing machine to complete the sanitary gloves Manufacturing is completed by performing the sanitary gloves manufacturing step.

[Breathability Experiment Example]

In order to confirm the breathability of the sanitary gloves such as blowing air into the six sanitary gloves manufactured according to the present invention and then sprayed a certain amount of water to the endothelial and left three on the veranda maintained at about 10 ℃, The remaining three were left in the room maintained at about 18-20 ℃ to check the water repellent.

At this time, the standing period was 5 days, and the weight change was measured to check the water repellency.

The three initial weights left on the veranda (average of three as the initial weight of the water sprayed state) were 302.5 g, and the three initial weights left in the room were 301.6 g.

And, the final weight (three average values) measured after 5 days left was reduced to 294.5g for the veranda, and 271.2g for the indoor standing.

Through this, it was possible to confirm the breathability, especially water repellency, which was never obtained in the existing material, and also confirmed that the effect is greater at room temperature than at low temperature.

Therefore, it has the ability to discharge the sweat generated from the inside when wearing gloves, and at the same time it contains more antimicrobial agent can increase the hygiene by that, furthermore, fine wrinkles with linear wrinkles on the inner surface and natural texture of paper feeling It is expected that the usability will be further increased in use since the ease of desorption can be ensured by forming a.

Claims (3)

Dry wood powder: 40-50 weight%, calcium carbonate: 10-15 weight%, antibacterial: 1-4 weight% silica: 1-3 weight%, light calcium carbonate: 3-5 weight%, antioxidant: 0.3-1 weight % And the remaining endothelial composition consisting of polyethylene resin in a stirrer and stirred and compounded for at least 30 minutes at a speed of 30-60 rpm to produce a wood polymer composite (WPC), 40-50% by weight of the WPC and the polystyrene resin 50-60% by weight of the inner film to form a composition, while also consisting of 6-10% by weight calcium carbonate, lubricant: 0.1-0.3% by weight, blocking agent: 0.1-0.4% by weight and the remaining polyethylene resin Mixing the composition at a speed of 50-70 rpm for at least 20 minutes to form an external film mixture composition;
The inner film mixed composition and the outer surface of the inner film mixed composition and the outer film mixed composition respectively blended through the compounding step through a double extruder having an inner die and an outer die to form an outer skin and the outer die to form an outer skin. Double film forming step of forming a double film with different inner and outer surfaces by blowing while blowing the film mixture composition for simultaneous blowing;
A sanitary glove manufacturing step of completing the sanitary gloves by stretching the dual film manufactured by the dual film forming step in a short axis or long axis direction to increase air permeability and sealing the cut in a state in which the sanitary glove maker is disposed; Sanitary gloves manufacturing method having a double film structure, characterized in that consisting of.
The method according to claim 1;
In the compounding step, the antimicrobial agent included in the inner film mixture is a bacteside, the lubricant contained in the outer film mixture is a polyalcohol and the antiblocking agent is a sanitary glove having a dual film structure, characterized in that the stearic acid amide Way.
The method according to claim 1;
In the double film forming step, by forming a fine groove in the MD (Machine Direction) direction on the outer side of the inner die to express a fine linear wrinkles on the surface of the endothelium, using wood powder added WPC to feel the natural texture of paper Sanitary gloves manufacturing method having a double film structure, characterized in that to form a fine concave-convex.