KR20230109398A - Cosmetic container using eco-friendly material and manufacturing method therefor - Google Patents

Abstract

It relates to a cosmetic container using an eco-friendly material manufactured using a resin composition containing PP, Bio-PE and coconut food by-products, and a manufacturing method thereof.

Description

Cosmetic container using eco-friendly material and manufacturing method therefor}

The present invention relates to a cosmetic container using eco-friendly materials and a method for manufacturing the same, and more specifically, to a cosmetic container using eco-friendly materials manufactured using a resin composition containing PP, Bio-PE and coconut food by-products, and a method for manufacturing the same. it's about

The 'Kyoto Protocol', an international agreement for the regulation and prevention of global warming, is an implementation agreement between countries made in 1997 to implement the United Nations Framework Convention on Climate Change (UNFCCC) adopted at the United Nations Environment Conference in Rio in June 1992. Also called The official name is 'Kyoto Protocol to the United Nations Framework Convention on Climate Change'.

It was adopted at the 3rd Conference of the Parties to the Convention on Climate Change held in Kyoto, Japan in December 1997 and officially entered into force on February 16, 2005. An average of 5.2% of greenhouse gas emissions must be reduced from 2008 to 2012 on an annual basis. Korea ratified it in November 2002 and is classified as a developing country, so it does not yet have legal obligations, but as an OECD member country, it is under pressure to reduce greenhouse gas emissions along with Mexico.

Carbon dioxide (CO2), methane (CH4), nitrous oxide (NO2), fluorocarbons (PFC), hydrofluorocarbons (HFC), and fluorosulfur (SF6) are six gases that are subject to reduction as substances that induce global warming. At a time when low-carbon green growth, global warming, and carbon reduction have become hot topics and the competitiveness of bioplastics is being strengthened, bioplastics, which are applied only to disposable products and some industrialized products, centering on existing biodegradable plastics, are carbon-neutral (carbon neutral) such as plants and seaweed. As it expands to the category of Bio-Based Plastics, which uses raw materials derived from neutral) type biomass, industrialization is progressing rapidly, and it is a very important technological advance in that it is directly applied to finished products and leads to sales expansion.

However, conventional products are a mixture of general petroleum-based synthetic resin and food by-products, and there is still a problem in that the amount of petroleum-based plastic is high. In addition, it is still difficult to find an optimal combination of eco-friendly materials, and data on effects such as physical properties are insufficient.

Therefore, while reducing the amount of petroleum-based plastics, there is a growing need for optimal components, weight ratios, and processing conditions capable of maintaining high carbon content derived from biomass and maintaining effects such as physical properties.

Republic of Korea Patent Registration No. 10-1937784 (2019.01.11. notice), "Eco-friendly antibacterial resin composition using bio-PE and eco-friendly antibacterial film and storage container using the same"

In order to solve the above problems, an object of the present invention is to provide a cosmetic container using eco-friendly materials prepared using a resin composition containing PP, Bio-PE and coconut food by-products, and a manufacturing method thereof.

In order to achieve the above object, the present invention provides a cosmetic container using an eco-friendly material, characterized in that it is manufactured using a resin composition in which polypropylene, Bio-PE and coconut food by-products are mixed.

At this time, the resin composition is characterized by mixing 55.0 to 75.0% by weight of polypropylene, 20.0 to 25.0% by weight of Bio-PE, and 5.0 to 20.0% by weight of coconut food by-products.

In addition, it is manufactured using the resin composition, and is composed of a lower container and an upper container, wherein the lower container is manufactured by blow molding and the upper container is manufactured by injection molding.

In addition, the Bio-PE is characterized in that it is prepared using sugar cane or corn starch as a raw material.

In addition, the present invention comprises a resin composition preparation step (S10) of preparing a resin composition by mixing polypropylene, Bio-PE and coconut food by-products; A lower container manufacturing step (S20) of manufacturing a lower container by blow molding the resin composition prepared in the resin composition manufacturing step (S10); An upper container manufacturing step (S30) of manufacturing an upper container by injection molding the resin composition prepared in the resin composition manufacturing step (S10); And, a container combining step (S40) of combining the lower container and the upper container respectively manufactured in the lower container manufacturing step (S20) and the upper container manufacturing step (S30); cosmetic container using eco-friendly materials, characterized in that it comprises a. Provides a manufacturing method of.

The cosmetic container using eco-friendly materials manufactured according to the manufacturing method of the present invention is manufactured using a resin composition containing PP, Bio-PE, and coconut food by-products, so that the amount of petroleum-based plastic used is reduced, as well as the carbon content derived from biomass is reduced. It has excellent effects such as high and strength improvement.

1 is a flowchart showing a manufacturing process of a cosmetic container using an eco-friendly material according to an embodiment of the present invention.
Figure 2 is a perspective view of a cosmetic container using an eco-friendly material according to an embodiment of the present invention.
Figure 3 is a side view of a cosmetic container using an eco-friendly material according to an embodiment of the present invention.
Figure 4 is a cross-sectional view of a cosmetic container using an eco-friendly material according to an embodiment of the present invention.
Figure 5 is a perspective view showing a state in which a closing member is coupled to a cosmetic container using an eco-friendly material according to an embodiment of the present invention.

The detailed description of the present invention below refers to the accompanying drawings shown as examples of embodiments in which the present invention can be practiced. These embodiments are described in detail so that those skilled in the art will be able to practice the present invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in one embodiment in another embodiment without departing from the spirit and scope of the invention. Additionally, it should be understood that the location or arrangement of individual components within each described embodiment may be changed without departing from the spirit and scope of the invention.

Accordingly, the detailed description set forth below is not to be taken in a limiting sense, and the scope of the present invention, if properly described, is limited only by the appended claims, along with all equivalents as claimed by those claims. Like reference numbers in the drawings indicate the same or similar function throughout the various aspects.

The terms used in the present invention have been selected from general terms that are currently widely used as much as possible while considering the functions in the present invention, but these may vary depending on the intention of a person skilled in the art or precedent, the emergence of new technologies, and the like. In addition, in a specific case, there is also a term arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the invention. Therefore, the term used in the present invention should be defined based on the meaning of the term and the overall content of the present invention, not simply the name of the term.

In the invention, when a certain part “includes” a certain component in the whole, this means that it may further include other components, rather than excluding other components, unless otherwise stated.

Hereinafter, a cosmetic container 100 using an eco-friendly material according to the present invention and a manufacturing method thereof will be described in detail with reference to the accompanying drawings.

The cosmetic container 100 using an eco-friendly material according to the present invention is characterized in that it is manufactured using a resin composition mixed with polypropylene, Bio-PE and coconut food by-products.

The polypropylene (PP) is a thermoplastic polymer material obtained by chain growth polymerization of propylene monomers composed of three carbon atoms. The polypropylene, along with polyethylene, is a representative polyolefin-based polymer. It is used in a wide range of applications such as packaging, textiles, films, automobile parts, storage containers, and medical products. The polypropylene is the second most produced polymer material after polyethylene.

The Bio-PE (Bio polyethylene) refers to one manufactured using sugar cane or corn starch as a raw material. The Bio-PE may also be referred to as bio-polyethylene (bio-PE). The said Bio-PE is different from general polyethylene. General polyethylene is made by heating crude oil to about 75℃~150℃ to separate naphtha, and then polymerizing ethylene produced by pyrolysis. On the other hand, the Bio-PE is a synthetic resin using natural sugar cane or corn starch, and natural sugar cane or corn starch is washed and crushed to obtain juice, fermented with an anaerobic strain, distilled, dehydrated, catalyzed, polymerized, etc. It is manufactured through the process of, and as a product manufactured and distributed by various manufacturers on the market, it is easy to purchase, and in the embodiment of the present invention, it is preferable to use Bio-PE purchased on the market.

The coconut food by-product ( Borassus flabellifer by - product ) refers to by-products such as the shell or flesh remaining after using coconut ( Borassus flabellifer ). The coconut ( Borassus flabellifer ) is a palm that grows to a height of 30 m or more, and is an important industrial plant with a wide range of uses, such as food materials (starch, sugar, fermented liquor materials), lumber, ship lumber, and household crafts (hats, nets, and rugs). In India, it is distributed over a wide area except for the northernmost and northwestern parts of the Himalayas, and also grows in Sri Lanka, Nepal, Southeast Asia, and southern China.

On the other hand, the resin composition is preferably a mixture of 55.0 to 75.0% by weight of polypropylene, 20.0 to 25.0% by weight of Bio-PE, and 5.0 to 20.0% by weight of coconut food by-products.

The above weight ratio is a value for the cosmetic container 100 using an eco-friendly material according to the present invention to exhibit an optimal effect, which can be explained through specific experimental examples to be described later.

On the other hand, the present invention is manufactured using the resin composition, and consists of a lower container 110 and an upper container 120, the lower container 110 is made by blow molding, and the upper container 120 is injection molded It provides a cosmetic container 100 using an eco-friendly material, characterized in that it is manufactured.

Blow molding is a process for making hollow plastic products, and includes extrusion blow molding, injection blow molding, injection stretch blow molding, and the like. The lower container 110 in the embodiment of the present invention is preferably manufactured by extrusion blow molding. Extrusion blow molding melts a resin composition using an extruder, attaches a die capable of forming a hollow pipe-like hollow shape to the end of the extruder, creates a parison, and opens the vertically descending parison. into the blowing mold. The mold is closed, air is blown into the parison, the parison expands and is attached to the mold to form a hollow product. In the extrusion process of making the parison, the thickness of the parison is controlled by changing the position of the mandrel (or parison variator) in the extrusion die during extrusion.

In summary, the lower container 110 melts the resin composition with an extruder under a temperature condition of 160 to 200 ° C., more specifically at a temperature condition of 180 ° C., to form a parison at the end of the extruder, It is preferably produced by allowing the parison to enter the mold, closing the mold and blowing air.

Injection molding is a molding method using an injection molding machine divided into an injection device and a clamping device. The injection device has a cylinder, melts a resin composition in the cylinder, and transfers it to the front of the cylinder. At the end of the transfer, the resin composition transferred to the front is passed through a nozzle under high pressure to enter the mold. The method of melting the resin composition in the injection device is a method of melting the plastic by rotation and an external heating device using a screw, and the melted plastic is transported forward and the rotation of the screw stops when the transport is finished. This acts as a plunger and pushes the molten resin composition collected in front toward the nozzle with high pressure. The other way to melt the resin composition in the injection device is to melt the resin composition in the cylinder using external heat and push the melted plastic toward the nozzle using a plunger to inject it. The clamping device fixes the upper and lower molds, and closes the two molds with great force so that the molds do not open due to high pressure during injection.

In summary, the upper container 120 is preferably manufactured by melting the resin composition with an external heating device at a temperature of 170 to 230 ° C. while rotating it using a screw, transferring it to a nozzle, and injecting it with a mold clamping device.

As shown in FIGS. 2 to 4 , the lower container 110 may be a hollow container. The upper container 120 may be a lid of the container or a connection part of the container.

In addition, as shown in FIG. 5, when the upper container 120 is a connection part, a closing member 130 such as a pump member may be additionally coupled. Like the upper container 120, the closing member 130 may be manufactured by injection molding.

Hereinafter, a method of manufacturing a cosmetic container 100 using an eco-friendly material according to an embodiment of the present invention will be described.

Method for manufacturing a cosmetic container using an eco-friendly material according to the present invention comprises a resin composition manufacturing step (S10) of preparing a resin composition by mixing polypropylene, Bio-PE and coconut food by-products; A lower container manufacturing step (S20) of manufacturing a lower container 110 by blow molding the resin composition prepared in the resin composition manufacturing step (S10); An upper container manufacturing step (S30) of manufacturing an upper container 120 by injection molding the resin composition prepared in the resin composition manufacturing step (S10); And, a container combining step (S40) of combining the lower container 110 and the upper container 120 prepared in the lower container manufacturing step (S20) and the upper container manufacturing step (S30), respectively. .

First, the resin composition preparation step (S10) is performed.

In the resin composition preparation step (S10), a resin composition is prepared by mixing polypropylene, Bio-PE, and coconut food by-products.

In the resin composition preparation step (S10), a resin composition is prepared by mixing 55.0 to 75.0% by weight of polypropylene, 20.0 to 25.0% by weight of Bio-PE, and 5.0 to 20.0% by weight of coconut food by-products.

In the resin composition preparation step (S10), a resin composition is prepared by mixing 55.0 to 75.0% by weight of polypropylene, 20.0 to 25.0% by weight of Bio-PE, and 5.0 to 20.0% by weight of coconut food by-products, and at a temperature of 5 to 40 ° C. Drying can be carried out for 12 to 48 hours. It is preferable to dry under the above conditions to minimize defects such as formation of weld lines and bubbles due to moisture during container molding.

Next, the lower container manufacturing step (S20) is performed.

In the lower container manufacturing step (S20), the lower container 110 is manufactured by blow molding the resin composition prepared in the resin composition manufacturing step (S10).

In the lower container manufacturing step (S20), the resin composition prepared in the resin composition manufacturing step (S10) is melted with an extruder under a temperature condition of 160 to 200 ° C. to form a parison at the end of the extruder, and the The lower container 110 is manufactured by allowing the listen to enter the mold, closing the mold and blowing air. Most appropriately, a temperature condition of 180° C. would be desirable.

When the temperature condition in the lower container manufacturing step (S20) is less than 160 ° C., the flowability of the resin is not good, so container defects may occur frequently. In addition, when the temperature condition in the lower container manufacturing step (S20) exceeds 200 ° C, carbonization occurs in the resin composition containing biomass (coconut food by-product), which may cause defects.

Next, the upper container manufacturing step (S30) is performed.

In the upper container manufacturing step (S30), the upper container 120 is manufactured by injection molding the resin composition prepared in the resin composition manufacturing step (S10).

In the upper container manufacturing step (S30), the resin composition produced in the resin composition manufacturing step (S10) is melted with an external heating device at a temperature of 170 to 230 ° C. while rotating using a screw, transferred to a nozzle, and molded to a clamping device. The upper container 120 is manufactured by injecting.

When the temperature condition in the upper container manufacturing step (S30) is less than 170 ° C., the flowability of the resin is not good, which may cause frequent container defects. In addition, when the temperature condition in the upper container manufacturing step (S30) exceeds 230 ° C., carbonization occurs in the resin composition containing biomass (coconut food by-product), which may cause defects.

Next, the container combining step (S40) is performed.

In the container combining step (S40), the lower container 110 and the upper container 120 respectively manufactured in the lower container manufacturing step (S20) and the upper container manufacturing step (S30) are combined to form a cosmetic container using eco-friendly materials ( 100) to complete.

Hereinafter, the effect of the cosmetic container 100 using an eco-friendly material according to an embodiment of the present invention will be confirmed in detail through the following Examples, Comparative Examples, and Experimental Examples.

Example 1 to 3 and comparative example 1 to 2. Manufacturing cosmetic containers by varying the mixing weight ratio

Cosmetic containers of Examples 1 to 3 and Comparative Examples 1 to 2 were prepared according to the following manufacturing method.

Resin composition preparation step (S10): A resin composition was prepared by mixing polypropylene, Bio-PE, and coconut food by-products in the weight ratios shown in Table 1, respectively, and dried at a temperature of 25 ° C. for 24 hours.

Lower container manufacturing step (S20): Melting the resin composition prepared in the resin composition manufacturing step (S10) with an extruder under a temperature condition of 180 ° C., forming a parison at the end of the extruder, so that the parison is drawn into the mold Thus, the lower container 110 was manufactured by closing the mold and blowing air.

Upper container manufacturing step (S30): Melting the resin composition prepared in the resin composition manufacturing step (S10) with an external heating device at a temperature of 170 to 230 ° C. while rotating using a screw, transferring it to a nozzle, and then transferring it to a clamping device. An upper container 120 in the form of a cap was manufactured by injection molding.

In the container combining step (S40), the lower container 110 and the upper container 120 respectively manufactured in the lower container manufacturing step (S20) and the upper container manufacturing step (S30) are combined, and Examples 1 to 3 and comparison Cosmetic containers of Examples 1 and 2 were completed.

PP content
(weight%) Content of Bio-PE
(weight%) Content of coconut food by fire (% by weight) Comparative Example 1 45.0 30.0 25.0 Example 1 55.0 25.0 20.0 Example 2 70.0 25.0 5.0 Example 3 75.0 20.0 5.0 Comparative Example 2 85.0 14.0 1.0

comparative example 3 to 5. Manufacturing cosmetic containers by excluding some ingredients

Cosmetic containers of Comparative Examples 3 to 5 excluding some components were prepared. As shown in Table 2 below, a resin composition was prepared by excluding PP (Comparative Example 3), excluding Bio-PE (Comparative Example 4), and excluding coconut food by-products (Comparative Example 5), and other manufacturing processes It was carried out in the same manner as in Examples 1 to 3 and Comparative Examples 1 to 2.

PP content
(weight%) Content of Bio-PE
(weight%) Content of coconut food by fire (% by weight) Comparative Example 3 - 70.0 30.0 Comparative Example 4 70.0 - 30.0 Comparative Example 5 50.0 50.0 -

comparative example 6 to 7. Manufacturing of cosmetic containers with different processing temperatures of the lower container

Cosmetic containers with different processing temperatures were prepared. It was compared with Example 2 by applying a different processing temperature. The resin composition was based on the composition of Example 2 (PP 70.0% by weight, Bio-PE 25.0% by weight, coconut food by-product 5.0% by weight), only the temperature conditions in steps (S20) and (S30) were different.

Resin composition preparation step (S10): A resin composition was prepared by mixing 70.0% by weight of polypropylene, 25.0% by weight of Bio-PE, and 5.0% by weight of coconut food by-products, and dried at a temperature of 25 ° C. for 24 hours.

Lower container manufacturing step (S20): The resin composition prepared in the resin composition manufacturing step (S10) is melted with an extruder under the temperature conditions of Table 3 to form a parison at the end of the extruder, and the parison is drawn into the mold As such, the lower container 110 was manufactured by closing the mold and blowing air.

Upper container manufacturing step (S30): Melting the resin composition prepared in the resin composition manufacturing step (S10) with an external heating device at a temperature of 170 to 230 ° C. while rotating using a screw, transferring it to a nozzle, and then transferring it to a clamping device. An upper container 120 in the form of a cap was manufactured by injection molding.

In the container combining step (S40), the cosmetic container was completed by combining the lower container 110 and the upper container 120 respectively manufactured in the lower container manufacturing step (S20) and the upper container manufacturing step (S30).

Blow molding processing temperature (℃) in the lower container manufacturing step (S20) Comparative Example 6 150℃ Example 2 180℃ Comparative Example 7 210℃

comparative example 8 to 9. Manufacturing of cosmetic containers with different processing temperatures of the upper container

Cosmetic containers with different processing temperatures were prepared. It was compared with Example 2 by applying a different processing temperature. The resin composition was based on the composition of Example 2 (PP 70.0% by weight, Bio-PE 25.0% by weight, coconut food by-product 5.0% by weight), only the temperature conditions in steps (S20) and (S30) were different.

Resin composition preparation step (S10): A resin composition was prepared by mixing 70.0% by weight of polypropylene, 25.0% by weight of Bio-PE, and 5.0% by weight of coconut food by-products, and dried at a temperature of 25 ° C. for 24 hours.

Lower container manufacturing step (S20): The resin composition prepared in the resin composition manufacturing step (S10) is melted with an extruder under a temperature condition of 180 ° C to form a parison at the end of the extruder, and the parison is drawn into the mold As such, the lower container 110 was manufactured by closing the mold and blowing air.

Upper container manufacturing step (S30): While rotating the resin composition prepared in the resin composition manufacturing step (S10) using a screw, melt it with an external heating device under the temperature conditions shown in Table 4 below, transfer it to a nozzle, and inject it into a clamping device By doing so, an upper container 120 in the form of a cap was prepared.

In the container combining step (S40), the cosmetic container was completed by combining the lower container 110 and the upper container 120 respectively manufactured in the lower container manufacturing step (S20) and the upper container manufacturing step (S30).

Injection molding processing temperature (℃) in the upper container manufacturing step (S30) Comparative Example 8 160℃ Example 2 200℃ Comparative Example 9 240℃

comparative example 10. General pe Manufacture of applied cosmetic containers

A cosmetic container using general PE was prepared. It was compared with Example 2 by applying petroleum-based PE instead of Bio-PE. The resin composition was based on the composition of Example 2 (PP 70.0% by weight, Bio-PE 25.0% by weight, coconut food by-product 5.0% by weight).

Resin composition preparation step (S10): A resin composition was prepared by mixing 70.0% by weight of polypropylene, 25.0% by weight of general PE, and 5.0% by weight of coconut food by-products, and dried at a temperature of 25 ° C. for 24 hours.

Lower container manufacturing step (S20): The resin composition prepared in the resin composition manufacturing step (S10) is melted with an extruder under a temperature condition of 180 ° C to form a parison at the end of the extruder, and the parison is drawn into the mold As such, the lower container 110 was manufactured by closing the mold and blowing air.

Upper container manufacturing step (S30): Melting the resin composition prepared in the resin composition manufacturing step (S10) with an external heating device at a temperature of 170 to 230 ° C. while rotating using a screw, transferring it to a nozzle, and then transferring it to a clamping device. An upper container 120 in the form of a cap was manufactured by injection molding.

In the container combining step (S40), the cosmetic container was completed by combining the lower container 110 and the upper container 120 respectively manufactured in the lower container manufacturing step (S20) and the upper container manufacturing step (S30).

Experimental example One. biocarbon content check

The containers obtained from Examples 1 to 3 and Comparative Examples 1 to 10 were prepared in 25 g slices, and the biomass carbon content was measured.

ASTM D6866 (European accredited method name CEN16137) standard is a standard for measuring biomass-derived organic carbon content in products. ASTM D6866 is a standard test method for measuring biomass content in samples in various states of solid, liquid, and gas using radiocarbon analysis techniques. ) is used. Companies can benefit from the ASTM D6866 test results in two ways. One is that the greenhouse gas inventory can be deducted according to the regulatory method of each country, and the other is that more carbon credits can be obtained according to the experimental results in countries that implement cap-and-trade programs. Since the measurement result is displayed as a simple percentage value, it is easy to use for monitoring and trading by regulators and financial institutions.

The test was conducted with 25 g of the container fragments obtained from Examples 1 to 3 and Comparative Examples 1 to 10 through the US BETA Institute, which is an authentication agency.

Biomass-derived carbon content (%) Comparative Example 1 38 Example 1 35 Example 2 33 Example 3 30 Comparative Example 2 24 Comparative Example 3 39 Comparative Example 4 22 Comparative Example 5 24 Comparative Example 6 24 Comparative Example 7 23 Comparative Example 8 24 Comparative Example 9 23 Comparative Example 10 12

The biomass carbon content of Examples 1 to 3 was 30-35%, which was higher than the United States Department of Agriculture certification standard of 25%.

Experimental example 2. Drop test

A drop test was performed on the containers obtained from Examples 1 to 3 and Comparative Examples 1 to 10.

The drop test was conducted according to the method of KS A 1011 as a test for breakage and separation and malfunction caused by drop impact during transportation, handling, and use of cosmetic containers. The sample can be maintained in any position with the drop device, and the drop height must not exceed the range of (1.00±0.02)m. In addition, the weight of the member constituting the falling surface should be 50 times or more the weight of the sample, and it is based on the horizontal difference of 2 mm or less at any two points on the surface. The sample must be of sufficient size to fall completely, and the floor is constructed with concrete.

With respect to the containers obtained from Examples 1 to 3 and Comparative Examples 1 to 10, a drop test was performed from a height of 1.00 m by surface drop, edge drop, and each drop. Plane fall included three cases: upright, inverted, and transverse. The experiment was repeated three times, and after the drop test, the container was visually observed to confirm the occurrence of deformation such as separation, cracking, creaking, and damage.

Deformation, creaking, or damage (○,×) Plane Fall-Establishment plane fall-inverse plane fall-horizontal corner fall angle drop transform creak damaged transform creak damaged transform creak damaged transform creak damaged transform creak damaged Comparative Example 1 × × ○ × × ○ × × ○ ○ ○ ○ ○ ○ ○ Example 1 × × × × × × × × × × × × × × × Example 2 × × × × × × × × × × × × × × × Example 3 × × × × × × × × × × × × × × × Comparative Example 2 × × × × × × × × × × × × × × × Comparative Example 3 ○ × ○ ○ × ○ ○ × ○ ○ ○ ○ ○ ○ ○ Comparative Example 4 ○ × ○ ○ × ○ ○ × ○ ○ ○ ○ ○ ○ ○ Comparative Example 5 × × × × × × × × × × × × × × × Comparative Example 6 × × ○ × × ○ × × ○ × × ○ × × ○ Comparative Example 7 × × × × × × × × × × × × × × × Comparative Example 8 × × ○ × × ○ × × ○ × × ○ × × ○ Comparative Example 9 × × × × × × × × × × × × × × × Comparative Example 10 × × × × × × × × × × × × × × ×

Experimental example 3. Heat and cold resistance test

The containers obtained from Examples 1 to 3 and Comparative Examples 1 to 10 were subjected to heat and cold resistance tests.

Heat resistance and cold resistance tests are conducted to prevent deterioration of products due to hot weather, cold weather, or distribution environment during overseas export, and are especially applied to assembled products. In addition, it is checked whether the cosmetic contents and sub-materials change due to contraction and expansion, deformation and functional degradation due to creep phenomenon at low and high temperatures. The creep phenomenon is a shape in which the deformation of the material increases with the passage of time when the external force is kept constant. An example is viscoelastic deformation, in which the deformation of an object gradually increases over time when a certain stress is applied to a polymer material.

This experiment is cited in the standards of KS M ISO 2758 and ASTM D 6633, and constitutes part of the provisions of this standard. Freezers (-12 ~ -5 ℃), refrigerators (-4 ~ 5 ℃), room temperature (20 ~ 26 ℃), thermostat (42 ~ 48 ℃) were used as instruments.

Experimental example 3.1. Change test by contraction and expansion of cosmetic contents and sub-materials

The contents were filled into the containers obtained from Examples 1 to 3 and Comparative Examples 1 to 10, capped normally, and then a freezer (-12 to -5 ° C), a refrigerator (-4 to 5 ° C), room temperature (20 to 5 ° C) 26°C) and a thermostat (42 to 48°C). After 7 days, changes due to contraction and expansion were confirmed.

Whether container deformation occurred after 7 days (○, ×) freezer refrigerator room temperature thermostat Comparative Example 1 ○ × × ○ Example 1 × × × × Example 2 × × × × Example 3 × × × × Comparative Example 2 × × × × Comparative Example 3 ○ × × ○ Comparative Example 4 ○ × × ○ Comparative Example 5 × × × × Comparative Example 6 ○ × × ○ Comparative Example 7 × × × × Comparative Example 8 ○ × × ○ Comparative Example 9 × × × × Comparative Example 10 × × × ×

Experimental example 3.2. Label adhesion test

Labels were attached to the surface to be adhered to the containers obtained from Examples 1 to 3 and Comparative Examples 1 to 10, and then a freezer (-12 ~ -5 ℃), refrigerator (-4 ~ 5 ℃), room temperature (20 ~ 26°C) and a thermostat (42 to 48°C). After 7 days, whether or not the label was removed was checked.

Whether or not the label fell off after 7 days (○,×) freezer refrigerator room temperature thermostat Comparative Example 1 ○ × × × Example 1 × × × × Example 2 × × × × Example 3 × × × × Comparative Example 2 × × × × Comparative Example 3 ○ × × × Comparative Example 4 ○ × × × Comparative Example 5 × × × × Comparative Example 6 ○ ○ × × Comparative Example 7 × × × × Comparative Example 8 ○ ○ × × Comparative Example 9 × × × × Comparative Example 10 × × × ×

Experimental example 3.3. odor identification test

The entire containers obtained from Examples 1 to 3 and Comparative Examples 1 to 10 were wrapped in aluminum foil and stored in a freezer (-12 to -5 ° C), a refrigerator (-4 to 5 ° C), and room temperature (20 to 26 ° C). ), left in a thermostat (42 ~ 48 ℃), cooled at room temperature for 30 minutes, and then checked for odor.

Odor occurrence after 7 days (○, ×) freezer refrigerator room temperature thermostat Comparative Example 1 × × × ○ Example 1 × × × × Example 2 × × × × Example 3 × × × × Comparative Example 2 × × × × Comparative Example 3 × × × ○ Comparative Example 4 × × × ○ Comparative Example 5 × × × × Comparative Example 6 × × × ○ Comparative Example 7 × × × × Comparative Example 8 × × × ○ Comparative Example 9 × × × × Comparative Example 10 × × × ×

Experimental example 4. Loss test

A weight loss test was performed on the containers obtained from Examples 1 to 3 and Comparative Examples 1 to 10. This test was performed with TM C1 according to ASTM D2684 standard. Depending on the container material or the sealing power of the container and cap, the preservation of the container for the contents, such as weight loss and deterioration of the contents, was confirmed.

The measurement was performed using an electronic balance with a precision of 0.01% of the sample weight, and was conducted in a thermostat maintaining 45 ~ 50 ℃. First, the weights of the containers obtained from Examples 1 to 3 and Comparative Examples 1 to 10 were specified using an electronic balance. Then, the containers obtained from Examples 1 to 3 and Comparative Examples 1 to 10 were quantitatively filled with the contents. The weight of the container filled with the contents was measured using an electronic balance. After 7 days in the thermostat, the sample container was taken out and the weight was measured after being left at room temperature for 2 hours.

① Weight change was calculated through the following calculation method.

Weight Change = [(Gf - Gi)/Ni] x 100

Gf: total weight of the container after storage in the thermostat (upper container, lower container, contents)

Gi: Total container weight before test (upper container, lower container, contents)

Ni: total weight of contents before test

② Daily average weight change (R) was obtained.

Weight change values were divided by the number of days the test was performed.

③ Daily average weight change rate was obtained.

Daily average weight change rate (%) = (R/Ni) × 100

Daily average weight change rate (%) Comparative Example 1 0.128% Example 1 0.013% Example 2 0.008% Example 3 0.011% Comparative Example 2 0.037% Comparative Example 3 0.136% Comparative Example 4 0.138% Comparative Example 5 0.048% Comparative Example 6 0.032% Comparative Example 7 0.034% Comparative Example 8 0.032% Comparative Example 9 0.034% Comparative Example 10 0.045%

Experimental example 5. Reduced pressure leakage test

A reduced pressure leak test was performed on the containers obtained from Examples 1 to 3 and Comparative Examples 1 to 10.

This test was performed with TM C2 according to the ASTM D5094 standard. The container material or packing sealability of the lower container and the upper container was checked. In the normal assembly state, the adhesion state of the contact parts such as the lower container and the upper container was confirmed by checking whether the substitute solution leaked during decompression. A torque meter, a vacuum oven, and a beaker were used as test equipment and reagents.

First, the lower containers obtained from Examples 1 to 3 and Comparative Examples 1 to 10 were filled with a substitute test liquid about 1/2. The upper container was fastened to the lower container, the container was inverted in a vacuum oven, and the vacuum was left for 1 minute after reaching 400 to 600 mmHg.

Judgment was made by visually checking the leakage state of the substitute test solution, and when there was no leakage for 1 minute after reaching 600 mmHg, it was marked as ×, and when there was leakage, it was marked as ○.

Leakage of substitute test solution (○, ×) Comparative Example 1 ○ Example 1 × Example 2 × Example 3 × Comparative Example 2 × Comparative Example 3 ○ Comparative Example 4 ○ Comparative Example 5 × Comparative Example 6 ○ Comparative Example 7 × Comparative Example 8 ○ Comparative Example 9 × Comparative Example 10 ×

conclusion.

Effects such as physical properties were confirmed through the cosmetic containers prepared in the above Examples and Comparative Examples.

Accordingly, in the biocarbon content experiment, Examples 1 to 3 were found to have high biomass-derived carbon content, and in addition, Comparative Example 1, Comparative Example 3, and Comparative Example 5 were found to have biomass-derived carbon content values was found to be high.

Therefore, in the experimental example, in the case of the cosmetic containers 100 of Examples 1 to 3 manufactured according to the manufacturing method of the cosmetic container using the eco-friendly material of the present invention, the effect of increasing stability against falling, the effect of preventing shrinkage and expansion, and increasing the adhesive strength of the label It was confirmed that the indices for physical properties including effect, off-flavor prevention effect, content loss prevention effect, and content leakage prevention effect were excellent.

However, in the case of Comparative Examples 1 to 9, the index for physical properties including the effect of increasing stability against falling, the effect of preventing shrinkage and expansion, the effect of increasing label adhesiveness, the effect of preventing off-flavor generation, the effect of preventing content loss, and the effect of preventing content leakage I could see a slight drop. Therefore, it was confirmed that Examples 1 to 3 were capable of maintaining excellent physical properties while having a high biomass-derived carbon content.

On the other hand, in the case of Comparative Examples 1 and 3, the biomass-derived carbon content was high, but the effect of increasing stability against falling due to an excessive amount of coconut by-products, preventing shrinkage and expansion, increasing label adhesiveness, and preventing off-flavors It was confirmed that the results for physical properties including effect, content loss prevention effect, and content leakage prevention effect were not good.

Therefore, when polypropylene, Bio-PE and coconut food by-products are all included in the content ratio and temperature conditions of the present invention, the effect is the best, and according to the mixing of polypropylene, Bio-PE and coconut food by-products It was confirmed that an unexpected effect appeared.

The present invention is environmentally friendly by significantly reducing the amount of polypropylene, which is a petroleum-based synthetic resin, by using bio-PE of natural origin. In addition, compared to the case of using general petroleum polyethylene, it was confirmed that the physical properties were excellent in the case of using Bio-PE, and the combination of polypropylene, Bio-PE and coconut food by-products had new effects that had not been seen before. appeared.

Accordingly, the present invention is prepared using a resin composition containing polypropylene, Bio-PE, and coconut food by-products, so that the amount of petroleum-based plastics used is reduced, as well as high biomass-derived carbon content, low moisture permeability, and low-temperature impact strength. As a new cosmetic container and its manufacturing method with high elongation, low secondary foaming rate and high elongation, it is specified that a cosmetic container using eco-friendly materials and its manufacturing method have been developed.

Although the present invention has been described with the accompanying drawings, this is only one example of various embodiments including the gist of the present invention, and is intended to be easily practiced by those skilled in the art. As an object, it is clear that the present invention is not limited to the embodiments described above. Therefore, the protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent range by change, substitution, substitution, etc. within the scope of the present invention do not depart from the scope of the present invention. will be included In addition, it is clear that some configurations in the drawings are provided exaggerated or reduced than the actual ones to more clearly explain the configuration.

(S10): Resin composition preparation step
(S20): lower container manufacturing step
(S30): Upper container manufacturing step
(S40): container combining step
100: cosmetic container
110: lower container
120: upper container
130: finishing member

Claims (5)

Cosmetic container using an eco-friendly material, characterized in that manufactured using a resin composition mixed with polypropylene, Bio-PE and coconut food by-products.
According to claim 1,
The resin composition is a cosmetic container using an eco-friendly material, characterized in that a mixture of 55.0 to 75.0% by weight of polypropylene, 20.0 to 25.0% by weight of Bio-PE, and 5.0 to 20.0% by weight of coconut food by-products.
According to claim 1,
A cosmetic container using an eco-friendly material, characterized in that it is manufactured using the resin composition and is composed of a lower container and an upper container, wherein the lower container is manufactured by blow molding and the upper container is manufactured by injection molding.
According to claim 1,
The Bio-PE is a cosmetic container using an eco-friendly material, characterized in that manufactured using sugar cane or corn starch as a raw material.
A resin composition preparation step of preparing a resin composition by mixing polypropylene, Bio-PE, and coconut food by-products (S10);
A lower container manufacturing step (S20) of manufacturing a lower container by blow molding the resin composition prepared in the resin composition manufacturing step (S10);
An upper container manufacturing step (S30) of manufacturing an upper container by injection molding the resin composition prepared in the resin composition manufacturing step (S10); and,
A container combining step (S40) of combining the lower container and the upper container respectively manufactured in the lower container manufacturing step (S20) and the upper container manufacturing step (S30); manufacturing a cosmetic container using eco-friendly materials, characterized in that it comprises a method.

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