KR20240055178A - Pallet Manufacturing Method for Perfume Pads - Google Patents

Abstract

The present invention relates to a method of manufacturing a pallet for an air freshener pad manufactured in the form of a pallet. It can be molded into a air freshener pad using a pellet as a raw material. It has excellent dispersion power, can be processed through a plastic molding process, and has rubber-like elasticity. This relates to a method of manufacturing pallets for air freshener pads.

Description

Pallet Manufacturing Method for Perfume Pads}

The present invention relates to a method of manufacturing a pallet for air freshener pads. In particular, the present invention, which is molded into a pad product, can be placed in places where bad odors may occur, such as cars or restrooms, and can be processed through a plastic molding process while providing continuous and excellent dissipation power. This relates to a method of manufacturing pallets for air freshener pads that are given rubber-like elasticity.

Conventionally, plastic air fresheners impregnated with fragrance ingredients to have a scent function have the advantage of being excellent in processability and being able to be processed into various forms, but their field of use has been limited due to their lack of scent properties or scent persistence. In addition, fragrance resins manufactured using rubber, silicone PP, or PE had the problem of not maintaining the original desired scent by deteriorating the scent of the air freshener due to the unique odor of the resin itself.

In order to solve these problems, Korean Patent Publication No. 10-1998-034312 (1998.08.05) impregnates vinyl acetate (ethylene vinylacetate) particles with a liquid fragrance, and adds low-density polyethylene (LDPE) resin and high-density polyethylene ( A method of producing a fragrant synthetic resin is proposed by mixing and melting HDPE) resins.

However, this method requires stirring for 3 to 4 hours while maintaining a temperature of 25 to 35 ℃ in the process of impregnating vinyl acetate particles with liquid fragrance. However, it is difficult to maintain the appropriate temperature and the liquid fragrance evaporates during prolonged stirring. There is a problem that the loss of fragrance raw materials increases.

In addition, Korean Patent Publication No. 10-2000-0031722 (2000.06.05) manufactures a solid fragrance containing a binder and a base fragrance and a plasticizer in an appropriate ratio to synthetic resin in order to be used as a stuffed toy filler with fragrance retention properties. A fragrant resin composition manufactured by selectively adding a flavoring agent, an inorganic foaming agent, and an antibacterial agent as a performance enhancer is introduced.

However, this fragrant resin composition requires the overall process of adding a fragrance base and a plasticizer to a binder, pulverizing them to form a solid fragrance, and then going through the process of mixing and molding the solid fragrance and synthetic resin again. It is very complicated and takes a long time, so there is a problem with high productivity and manufacturing costs.

Prior art literature

patent literature

(Patent Document 0001) No. 10-1998-034312 (1998.08.05)

(Patent Document 0002) No. 10-2000-0031722 (2000.06.05)

The purpose of the present invention is to provide a method for manufacturing pellets for air freshener pads, which not only has excellent scenting power when produced as a pad product in the form of a pellet, but also shortens the manufacturing time and reduces the manufacturing cost.

In addition, the purpose of the present invention is to provide a method of manufacturing a pallet for an air freshener pad that can be processed through a plastic molding process and is durable and flexible by imparting rubber-like elasticity.

The method of manufacturing a pallet for air freshener pad according to the present invention is

Mixing step 1 in which PP (polypropylene), SEBC (styrene-ethylene-butylene copolymer), and SBR (styrene-butadiene rubber) are added to a Henschel mixer and mixed until these materials are melted by self-heating action;

A second step of preparing a white mineral oil containing the scent solution by mixing the scent solution with white mineral oil and dispersing it uniformly;

A third mixing step of adding additional calcium carbonate (CaCO3) to the mixture in which the first mixing step was completed in the Henschel mixer;

A mixing step 4 of additionally adding and mixing the mixed white mineral oil containing the fragrance stock solution prepared in step 2 into the Henschel mixer containing the mixture in which mixing step 3 has been completed;

It is characterized in that there are five steps in which the mixed raw materials are put into a twin extruder and molded into a dough state, and then the cooling and cutting process is continuously carried out and manufactured in the form of a pellet.

The PP (polypropylene), SEBC (styrene-ethylene-butylen copolymer), and SBR (styrene-butadiene rubber) are added to a Henschel mixer and mixed for 5 to 10 minutes until these materials are melted by self-heating action. It is characterized by being the first stage.

Characterized by the third mixing step in which the materials that have passed through the first mixing step and calcium carbonate (CaCO3), a powder-like stone, are mixed by running a Henschel mixer for 5 to 10 minutes to mix evenly. do.

Mixing 4 in which the composition resulting from the second mixing step, which is the white mineral oil mixed in the Henschel mixer with the remaining result from the third mixing step, is added and mixed for 3 to 5 minutes by lowering the friction generation speed of the Henschel mixer to reduce additional heat generation. It is characterized by being a step.

The proportion of the above raw materials is

PP 20~25% by weight

SEBC 5~25% by weight

SBR 5~27% by weight

white mineral oil 15~24% by weight

Fragrance concentrate 1~8% by weight

It is characterized by being prepared with 5 to 15% by weight of calcium carbonate (CaCO3) and manufactured in the form of pellets.

The pallet is characterized in that it is manufactured into a fragrance pad using a separate extruder, either alone or mixed with a synthetic resin material.

The pallet for air freshener pad manufactured according to the present invention has excellent scent persistence and scenting power, is particularly easy to productivity and processability, and has excellent texture and durability of the finished product, so it can be conveniently used as a car air freshener and for home use. It is possible.

Figure 1 is a diagram showing a Henschel mixer used in the manufacturing method of the present invention.
Figure 2 is a process diagram for explaining the manufacturing steps of the present invention
Figure 3 is an enlarged photograph of a specimen manufactured according to the manufacturing method of the present invention.

Below, with reference to the attached drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the present invention.

However, since the description of the present invention is only an example for structural and functional explanation, the scope of the present invention should not be construed as limited by the embodiments described in the text.

For example, since the embodiments can be variously modified and have various forms, the scope of the present invention should be understood to include equivalents that can realize the technical idea.

In addition, the purpose or effect presented in the present invention does not mean that a specific embodiment must include all or only such effects, so the scope of the present invention should not be understood as limited thereby.

In this specification, the present embodiments are provided to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention. And the present invention is only defined by the scope of the claims.

Accordingly, in some embodiments, well-known components, well-known operations and well-known techniques are not specifically described in order to avoid ambiguous interpretation of the present invention.

Meanwhile, the meaning of the terms described in the present invention is not limited to the dictionary meaning and should be understood as follows.

All terms used herein, unless otherwise defined, have the same meaning as commonly understood by a person of ordinary skill in the field to which the present invention pertains.

Terms defined in commonly used dictionaries should be interpreted as consistent with the meaning they have in the context of the related technology, and cannot be interpreted as having an ideal or excessively formal meaning unless clearly defined in the present invention.

The method of manufacturing a pallet for air freshener pad according to the present invention is

Mixing step 1 in which PP (polypropylene), SEBC (styrene-ethylene-butylene copolymer), and SBR (styrene-butadiene rubber) are added to a Henschel mixer and mixed until these materials are melted by self-heating action;

A second step of preparing a white mineral oil containing the scent solution by mixing the scent solution with white mineral oil and dispersing it uniformly;

A third mixing step of adding additional calcium carbonate (CaCO3) to the mixture in which the first mixing step was completed in the Henschel mixer;

A mixing step 4 of additionally adding and mixing the mixed white mineral oil containing the fragrance stock solution prepared in step 2 into the Henschel mixer containing the mixture in which mixing step 3 has been completed;

It consists of five steps: putting the mixed raw materials into a twin extruder and molding them into a dough state, then manufacturing them in the form of pellets while continuing the cooling and cutting process.

Figure 1 shows the Henschel mixer used in the manufacturing process of the present invention, and the Henschel mixer is known as equipment capable of mixing with high precision in a short time.

The Henschel mixer (1) is mainly used as a mixer, and is suitable for the production of the present invention as it is capable of mixing as well as drying and coating powder.

In particular, the Henschel mixer (2) has rotary blades (2) arranged up and down, so the raw materials swirl from the outside to the inside, gather together, and run out again at high speed. While the rotor blade rotates at high speed, frictional heat is generated, and this frictional heat coats or melts the raw materials.

This Henschel mixer (1) is used by connecting a cooler (3) when the temperature of the mixture raw materials due to frictional heat needs to be lowered to a certain temperature. This cooler (3) is cooled through the nitrogen gas injection rod (4) and then recovered. The unexplained code 5 is a classifier.

In addition, the fragrance stock solution used in the present invention is in the form of a liquid and can usually be used as a natural fragrance or synthetic fragrance. For example, you can choose from a variety of fragrance concentrates such as lilac, lily, rose, coffee, and vanilla, or use a mixture of them.

The advantage of PP (polypropylene) is that it is lightweight. Polypropylene has a specific gravity of 0.9, making it lightweight. Since the specific gravity is lower than 1, it is lightweight enough to float on water and is used for the purpose of making products lighter. Among thermoplastic resins, polypropylene tends to have a high heat resistance temperature and has strong chemical resistance, so polypropylene is difficult to be affected by chemicals, so it is widely used in scientific and medical devices. Polypropylene has excellent mechanical strength, a hard surface, and good wear resistance. It is easy to process such as cutting and bending, and can respond to various manufacturing methods such as injection molding and extrusion molding. It is low-cost when manufactured using a mold. It has characteristics that enable mass production.

The disadvantage is that polypropylene is generally weak to ultraviolet rays and turns white when exposed to sunlight, so it is not suitable for outdoor use. This can be improved by adding additives such as antioxidants, but polypropylene lacks adhesiveness. Therefore, a separate adhesive is needed to create the shape.

Although it can be improved by performing base treatment such as roughening the surface, it is difficult to obtain strength sufficient to bond metal, and polypropylene is a material that is difficult to print as is, so if you want to print, treat the base with adhesive paper. It is necessary to implement.

Since polypropylene is a heat-resistant resin, heat-resistant containers made of polypropylene can also respond to microwave ovens. Even when a small load is applied, depending on the structure of the product, they can be used continuously at a temperature close to 100°C. The pipe has a heat resistance temperature of 90℃ at a pressure of 0.2MPa.

The characteristics of SEBC (styren-ethylene-butylen copolymer) are intended to utilize polystyrene-polybutadiene-polystyrene (SBS) block copolymer as a polymer support layer. Polypropylene has a characteristic of lacking adhesive strength, so a separate adhesive is used to create the shape. It is used.

SBR (styrene-butadiene rubber) refers to a series of synthetic rubbers extracted from styrene and butadiene. NR (Natural Rubber) (It has good elongation and elasticity and excellent waterproofing. However, NR rubber is vulnerable to vulcanization and sensitive to ozone cracking. In addition, it has great elasticity at room temperature, but gradually crystallizes and hardens below 10℃. It has similar physical and chemical properties to .), but has better wear resistance and aging resistance. In addition, it has good elasticity and dynamic properties and generates little heat, and about 50% of automobile tires are made of various types of SBR.

Calcium carbonate (CaCO3) is a white substance produced when carbonate ions and calcium ions meet. It is also called lime carbonate. It is not soluble in water and precipitates in aqueous solutions. It is a material that forms stalactites, stalagmites, and stone columns in limestone cavities, and is also a component of chalk used on brown sugar blackboards.

Calcium carbonate is an ultra-fine powder made by pulverizing limestone, and is white and slightly alkaline, stable at room temperature. Depending on the purity of the limestone, particle size, and manufacturing method, it is usually classified into calcium carbonate, heavy calcium carbonate, and light calcium carbonate.

Calcium carbonate is used as a main raw material for cement in limestone and marble, as a raw material for calcium oxide, and as a neutralizing agent for various types of iron and building materials. In addition, aleurone is used in white pigments and water-based paints, and precipitated calcium carbonate is used in pigments, paints, toothpaste, etc., and is also used as a reinforcing agent in rubber.

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

Figure 2 is a process diagram for explaining the manufacturing method of the present invention.

First, PP (polypropylene), SEBC (styrene-ethylene-butylene copolymer), and SBR (styrene-butadiene rubber) are added to a Henschel mixer and mixed for 5 to 10 minutes to self-heat and melt. It is desirable to add PP at 20 to 25% by weight, SEBC at 5 to 25% by weight, and SBR at 5 to 27% by weight.

If you put three substances into the Henschel mixer at the same time and start mixing and mix for less than 5 minutes, the heating value will not be sufficient and mixing will not be sufficient. If you mix evenly and run the Henschel mixer for longer than 10 minutes, mixing will occur. There is a risk of changes in the properties of the material due to the large amount of heat, and it can accelerate the denaturation and volatilization of the scent oil to be added subsequently, causing the scent ingredients to rapidly volatilize or burn out in the final scent pad. Complete the first stage of mixing by operating the Henschel mixer.

The PP is a plastic material that is the base among materials and determines hardness and physical properties. When the content is less than 20% by weight, the hardness of the product decreases, and when the content exceeds 25% by weight, the hardness becomes excessively high.

The SEBC acts as a binder between PP and SBR. When the content is less than 5% by weight, the binder that acts as a binder is insufficient, so the compatibility of the finished product is insufficient, and when the content exceeds 25% by weight, excessive results are obtained. It has become.

The SER is a rubber material that plays a role in determining the hardness and elasticity of the product. 5% to 27% by weight is appropriate. If the content is less than 5% by weight, the elasticity of the finished product is low and the hardness is high. . Conversely, if the content is more than 27% by weight, the elasticity of the finished product is high, but the hardness is low.

Following the first mixing step, additional calcium carbonate (CaCO3) is added and mixed for 5 to 10 minutes to produce a dough-like mixture, thereby completing the third mixing process.

Calcium carbonate (CaCO3) added at this time is an additive used to adjust the specific gravity of the raw materials, and is preferably 5 to 15% by weight for appropriate specific gravity of the raw materials.

If the content of calcium carbonate (CaCO3) is less than 5% by weight, the desired specific gravity cannot be obtained, the strength of the product becomes weak, and the content of calcium carbonate (CaCO3) exceeds 15% by weight. In this case, the hardness of the product increases, a product with a larger specific gravity than the intended specification is obtained, and the stone powder component increases when the pellet is melted and shaped, which can result in the mold being ground and damage progressing rapidly.

Calcium carbonate (CaCO3) is added to the mixture that has completed the first mixing step and the Henschel mixer is run for less than 5 minutes. When the materials that have gone through the first mixing step of resin and rubber components and carbonic acid, which is powdery stone, are mixed Calcium (Calcium carbonate, CaCO3) should be evenly mixed so that the strength and specific gravity are well distributed, but due to the short time, dispersion may be insufficient. If the mixer is operated for longer than 10 minutes, even dispersion can be achieved, but the mixing step 3 is necessary. It is preferable to run the Henschel mixer for 5 to 10 minutes because the probability of changing the physical properties of the mixture in the second mixing stage increases by transferring temperature and heat to the mixture to be added after completion.

SER is a rubber material that absorbs white mineral oil to form a soft and soft rubber. White mineral oil is absorbed and contained inside the SER, and white mineral oil is contained inside the SER. Mineral oil) surrounds the scent solution and prevents it from rapidly evaporating at external temperatures or in an open environment. It also causes the scent to slowly evaporate, allowing the scent to be released gradually over a long period of time.

Meanwhile, the fragrance concentrate and white mineral oil are prepared and mixed. At this time, the fragrance concentrate is preferably 1 to 8% by weight and the white oil is preferably 15 to 24% by weight.

The white mineral oil acts to contain the fragrance concentrate, and the white mineral oil acts to coat and envelop the fragrance concentrate. This is a shape that is surrounded by white mineral oil from the temperature applied when making the scent pad, and SER uses a double coating structure by taking advantage of the property of adsorbing white mineral oil as a rubber material.

When temperature is applied, SER, a rubber material, absorbs and surrounds white mineral oil, and the white mineral oil coats the fragrance oil, so the fragrance oil changes temperature from the external temperature. It is a structure that can significantly reduce the probability of evaporation by receiving .

The fragrance concentrate is a source of scent emission, and when it is less than 1% by weight, the scent duration and scent intensity are weak, and when it exceeds 8% by weight, it is excessive, causing problems in the physical properties of the product and injection moldability during injection.

The white mineral oil contains the fragrance concentrate and plays a role in dispersing the fragrance ingredient in a mixed environment of SEBC and SBR, which also affects the hardness, physical properties, and moldability of the product. Therefore, in the case of the present invention, if the content of white mineral oil is less than 15% by weight, problems with surface defects and moldability of the injection product occur, and if the content is more than 24% by weight, the hardness and physical properties of the product are reduced and injection performance is impaired. There is a downside to deterioration.

Start mixing the composition resulting from the second mixing step, which is the mixed white mineral oil prepared as above, by lowering the friction generation speed of the Henschel mixer to generate less additional heat, and start mixing the resultant water from the second mixing step and the resulting water from the third mixing step, and mix for 3 minutes to 5 minutes. Mix for about a minute so that the white mineral oil mixed in SBR is sufficiently absorbed.

If you mix the Henschel mixer for less than 3 minutes, the mixed white mineral oil will not have enough time to be fully absorbed into the dissolved SBR, and the mixed white mineral oil may flow out. If you mix the Henschel mixer for longer than 5 minutes, the mixed white mineral oil will not have time to be sufficiently absorbed. If you do this, the white mineral oil mixed in the dissolved SBR will be sufficiently absorbed, but the possibility of denaturation of the fragrance oil increases due to incidental heat generation.

Therefore, the resulting composition of the second mixing step, which is the white mineral oil mixed in the Henschel mixer where the third mixing step result remains, is added and mixed for about 3 to 5 minutes by lowering the friction generation speed of the Henschel mixer to reduce additional heat generation. Preferred Mixing A four-step mixture is created.

In this way, the raw materials mixed into a dough are put into a twin extruder, and the cooling and cutting processes are continuously performed to produce pellets of a certain size.

The pellets can produce various types of air freshener pads through a separate extrusion process, and the physical properties can be changed to suit the purpose by adding synthetic resin.

<Example>

The present invention was carried out through the above manufacturing steps, and after manufacturing the raw materials in the composition ratio shown in Table 1 below, the pellets were passed through an extruder to manufacture specimens measuring 10 cm wide, 10 cm long, and 1 cm thick.

Raw material composition ratio pp 20% by weight SEBC 20% by weight SBR 20% by weight white mineral oil 20% by weight Fragrance concentrate 5% by weight Calcium carbonate (CaCO3) 15% by weight

Figure 3 is an enlarged photograph of the specimen, which has the physical properties of TPE (thermoplastic elastomer).

As can be seen in Figure 3, the solidified rubber tissue 10 provides elasticity to the product, and the aromatic components are dispersed and distributed here to continuously exert the scenting power. This fragrance component is impregnated in the solidified rubber tissue (10) and is released along the micropores and passages of the hardened plastic tissue (20), so that the fragrance dissipation power can be maintained for a long time.

In addition, the hardened plastic tissue 20, which constitutes the skeleton of the solidified rubber tissue 10, maintains the durability of the product.

The present invention described above is an example, and those skilled in the art will be able to make various modifications, changes, and substitutions without departing from the characteristics of the present invention. Therefore, the present invention is not limited to the embodiments, and all technical ideas construed by the claims and within the equivalent scope thereof shall fall within the scope of the present invention.

One; Henschel Mixer 2; rotary blade 3; cooler
4; Nitrogen gas injection rod 5; classifier
10; coagulated rubber tissue 20; hardened plastic tissue

Claims (6)

1st mixing step in which PP (polypropylene), SEBC (styrene-ethylene-butylene copolymer), and SBR (styrene-butadiene rubber) are added to a Henschel mixer and mixed until these materials are melted by self-heating action;
A second step of preparing a white mineral oil containing the scent solution by mixing the scent solution with white mineral oil and dispersing it uniformly;
A third mixing step of adding additional calcium carbonate (CaCO3) to the mixture in which the first mixing step was completed in the Henschel mixer;
A mixing step 4 of additionally adding and mixing the mixed white mineral oil containing the fragrance stock solution prepared in step 2 into the Henschel mixer containing the mixture in which mixing step 3 has been completed;
A method of manufacturing a pallet for an air freshener pad, characterized in that there are five steps in which the blended raw materials are put into a twin extruder, molded into a dough state, and then manufactured in the form of a pellet while continuing the cooling and cutting process.
According to paragraph 1,
The proportion of the above raw materials is
PP 20~25% by weight
SEBC 5-25% by weight
SBR 5~27% by weight
White mineral oil 15-24% by weight
Fragrance concentrate 1~8% by weight
A method of manufacturing a pellet for an air freshener pad, characterized in that it is prepared with 5 to 15% by weight of calcium carbonate (CaCO3) and manufactured in the form of a pellet.
According to paragraph 1,
The PP (polypropylene), SEBC (styrene-ethylene-butylen copolymer), and SBR (styrene-butadiene rubber) are added to a Henschel mixer and mixed for 5 to 10 minutes until these materials are melted by self-heating action. A method of manufacturing a pallet for an air freshener pad, characterized in that it is a first step. According to paragraph 1,
Characterized in the third mixing step of mixing the materials that have passed through the first mixing step and calcium carbonate (CaCO3), a powder-like stone, by operating a Henschel mixer for 5 to 10 minutes to mix evenly. Method of manufacturing pallets for air freshener pads. According to paragraph 1,
Mixing 4 in which the composition resulting from the second mixing step, which is the white mineral oil mixed in the Henschel mixer with the remaining result from the third mixing step, is added and mixed for 3 to 5 minutes by lowering the friction generation speed of the Henschel mixer to reduce additional heat generation. A method of manufacturing a pallet for an air freshener pad, characterized in that the steps are as follows. According to claim 1 or 2,
A method of manufacturing a pallet for a fragrance pad, characterized in that the pellet is manufactured alone or mixed with a synthetic resin material into a fragrance pad using a separate extruder.