KR20170009648A - Melamin Resin crockery having marble pattern, manufacturing method thereof and Melamin Resin Composite for manufacturing melamin Resin crockery having marble pattern - Google Patents
Melamin Resin crockery having marble pattern, manufacturing method thereof and Melamin Resin Composite for manufacturing melamin Resin crockery having marble pattern Download PDFInfo
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- KR20170009648A KR20170009648A KR1020150101977A KR20150101977A KR20170009648A KR 20170009648 A KR20170009648 A KR 20170009648A KR 1020150101977 A KR1020150101977 A KR 1020150101977A KR 20150101977 A KR20150101977 A KR 20150101977A KR 20170009648 A KR20170009648 A KR 20170009648A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D22/00—Producing hollow articles
- B29D22/003—Containers for packaging, storing or transporting, e.g. bottles, jars, cans, barrels, tanks
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G19/00—Table service
- A47G19/02—Plates, dishes or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0041—Optical brightening agents, organic pigments
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08L61/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
- C08L61/28—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with melamine
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Table Devices Or Equipment (AREA)
Abstract
A method of manufacturing a melamine resin tableware having a marble pattern according to an embodiment of the present invention includes: preparing a first melamine resin composition and a second melamine resin composition having different sizes; Mixing the melamine resin compositions at a constant weight ratio; And molding the melted melamine resin composition into a molding part and pressurizing the melted melamine resin composition, wherein the size of the first melamine resin composition is 3 mm to 12 mm, and the size of the second melamine resin composition is 1 mm or less have.
Description
One embodiment of the present invention relates to a melamine resin tableware having a marble pattern, a method for producing the same, and a mixed melamine resin composition used therefor.
Generally, a melamine resin composition is used for producing a bowl such as a cup, a plate, a bowl, and an air. The melamine resin composition is a main raw material of a melamine resin which is formed by reacting melamine and formaldehyde.
Melamine is structurally equivalent to 2,4,6-triamino-1,3,4-triazine and is also called cyanuric acid amide, which is produced by reacting dicyandiamide with liquid ammonia under a predetermined pressure. Melamine is a colorless columnar crystal having a molecular weight of 126.12, a melting point of 347 ° C (decomposition) and a specific gravity of 1.573 (14 ° C), and has sublimation properties. Melts to some extent in hot water, but does not dissolve in cold water and ethanol, and does not dissolve in ether. When such melamine is mixed with formalin or formaldehyde and heated, a melamine resin (resin) is formed by a condensation reaction. Melamine resin is a kind of amino resin, and its surface is hard, smooth, and has excellent flame retardancy and chemical resistance.
The melamine resin tableware is widely used because of its light weight and durability. In the case of these melamine resin tableware, various types of patterns are transferred to the edge of the frame or the center of the tableware to enhance appearance.
A method of forming a new appearance of a melamine resin tableware can be considered since the method of transferring the melamine resin tableware to form another appearance does not satisfy various needs of the consumer.
It is an object of the present invention to provide a tableware having a different appearance from a conventional tableware and a method of manufacturing the same.
In order to accomplish the object of the present invention, there is provided a method of manufacturing a melamine resin tableware having a marble pattern according to an embodiment of the present invention, comprising preparing a first melamine resin composition and a second melamine resin composition having different sizes ; Mixing the melamine resin compositions at a constant weight ratio; And molding the melted melamine resin composition into a molding part and pressurizing the melted melamine resin composition, wherein the size of the first melamine resin composition is 3 mm to 12 mm, and the size of the second melamine resin composition is 1 mm or less have.
According to one embodiment of the present invention, the first melamine resin composition and the second melamine resin composition may be formed in different colors.
According to an example of the present invention, the first melamine resin composition and the second melamine resin composition may contain 60 to 70% by weight of melamine resin, 20 to 35% by weight of pulp and 2 to 5% by weight of additives, respectively .
According to one embodiment of the present invention, the first melamine resin composition is prepared by mixing melamine and formaldehyde in a molar ratio of 1: 1.5-3 in a reactor and reacting the melamine resin with heating at 80 to 100 ° C under an alkali catalyst to prepare a melamine resin solution step; Mixing 60 to 70% by weight of the prepared melamine resin solution with 20 to 35% by weight of pulp; Crushing the mixed material so as to have a size of 3 mm to 12 mm; And 2 to 5% by weight of an additive comprising at least one of a hardener, a releasing agent and a coloring agent in the pulverized product.
According to one example of the present invention, the second melamine resin composition is prepared by mixing melamine and formaldehyde in a molar ratio of melamine and formaldehyde in a reactor, and reacting the melamine resin solution while heating at 80 to 100 ° C under an alkali catalyst to prepare a melamine resin solution step; Mixing 60 to 70% by weight of the prepared melamine resin solution with 20 to 35% by weight of pulp; Crushing the mixed material so as to have a size of 1 mm or less; And 2 to 5% by weight of an additive including at least one of a hardener, a releasing agent and a coloring agent in the pulverized product, followed by milling to form a fine powder.
According to one embodiment of the present invention, the first melamine resin composition and the second melamine resin composition may be prepared by mixing at a weight ratio of 1: 4 to 5.67.
In order to achieve the above-mentioned object, another embodiment of the present invention discloses a melamine resin tableware provided with a marble pattern produced by any of the melamine resin tableware manufacturing methods described above.
In order to achieve the above object, another embodiment of the present invention is a mixed melamine resin composition for use in producing a tableware, wherein the first melamine resin composition of the mixed melamine resin composition comprises melamine and formaldehyde in a molar ratio of 1: 1.5 to 3 molar ratio and reacting with heating at 80 to 100 DEG C under an alkali catalyst to prepare a melamine resin solution; Mixing 60 to 70% by weight of the prepared melamine resin solution with 20 to 35% by weight of pulp; Crushing the mixed material so as to have a size of 3 mm to 12 mm; And 2 to 5% by weight of an additive comprising at least one of a curing agent, a releasing agent and a coloring agent in the pulverized mixture, wherein the second melamine resin composition in the mixed melamine resin composition contains melamine and formaldehyde 1 to 1.5 to 3 molar ratio and reacting under heating with an alkali catalyst at 80 to 100 캜 to prepare a melamine resin solution; Mixing 60 to 70% by weight of the prepared melamine resin solution with 20 to 35% by weight of pulp; Crushing the mixed material so as to have a size of 1 mm or less; And 2 to 5% by weight of an additive comprising at least one of a hardener, a releasing agent and a coloring agent in a pulverized mixture, followed by milling to form a fine powder, wherein the first melamine resin composition and the second melamine The resin composition discloses a mixed melamine resin composition used for producing a melamine resin tableware having a marble pattern mixed at a weight ratio of 1: 4 to 5.67.
The melamine resin tableware, the method of manufacturing the same, and the mixed melamine resin composition used in the melamine resin table according to at least one embodiment of the present invention having the above-described structure can realize a unique appearance, The dishware can be provided.
1 is a photograph of a first melamine resin composition.
2 is a photograph of a second melamine resin composition.
3 is a photograph of the first melamine resin composition and the second melamine resin composition in a state of being mixed.
4 is a photograph of a tableware manufactured by a conventional method.
5 to 6 are photographs of a tableware manufactured according to an embodiment of the present invention.
Hereinafter, a melamine resin tableware having a marble pattern according to the present invention, a method for producing the same, and a mixed melamine resin composition used therefor will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role. In the present specification, the same or similar reference numerals are given to different embodiments in the same or similar configurations. As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise.
The melamine resin composition according to the embodiment of the present invention includes a melamine resin, a pulp and an additive.
The melamine resin may be prepared by mixing melamine and formaldehyde (or formalin) in a molar ratio of 1: 1.5 to 3, adding an alkali catalyst to the reactor, and reacting the melamine resin at about 80 to 100 ° C. Such a melamine resin is widely used in a field of producing a container made of melamine resin as a raw material, such as a cup, a plate, a bowl, and an air.
The pulp is made, for example, as pulp for paper making, usually by removing from the wood other than cellulosic. To make pulp, first crush the wood to make chips. The chip is steamed in an aqueous solution of calcium hydrogen sulfite at a temperature of 130 to 160 ° C. for about 8 hours to remove lignin, pentanoic acid and other components. Then, it is treated again such as bleaching. The pulp thus produced is called sulfite pulp. Other than this, there are various methods such as caustic soda method and sulphate soda method. Sulfate soda pulp is referred to as kraft pulp. In addition, some of these pulps are made by shredding chips without processing such medicines. These pulp are called "sawdust pulp" and contain lignin and other ingredients. The pulp used in the present invention is preferably a bell-fed pulp having a cellulose content of 90% or more.
The additives may include a hardening agent, a release agent, a coloring agent and the like, and they can use components well known in the art of making a bowl.
In the present invention, first melamine resin compositions and second melamine resin compositions having different sizes are included to form a marble pattern on the melamine resin.
Here, the size of the first melamine resin composition may be 3 mm to 12 mm, and the size of the second melamine resin composition may be 1 mm or less. For example, the second melamine resin composition may have a particle size of 180 mesh or less. In addition, the first melamine resin composition and the second melamine resin composition may be formed to have different hues. Fig. 1 is a photograph of a first melamine resin composition, Fig. 2 is a photograph of a second melamine resin composition, and Fig. 3 is a photograph of a first melamine resin composition and a second melamine resin composition mixed.
The first melamine resin composition is prepared by mixing melamine and formaldehyde in a molar ratio of 1: 1.5-3 in a reactor and reacting the melamine resin under heating with an alkaline catalyst at 80 to 100 캜 to prepare a melamine resin solution. Mixing 20 to 35% by weight of pulp with 70% by weight of the pulp; pulverizing the mixed pulp to have a size of 3 mm to 12 mm; and pulverizing the pulverized pulp with additives 2 to 3, 5% by weight of the composition.
More specifically, first, melamine and formaldehyde are mixed in a molar ratio of 1: 1.5 to 3 in a reactor and reacted while heating at 80 to 100 ° C under an alkaline catalyst to prepare a melamine resin solution. Then, 60 to 70% by weight of the prepared melamine resin solution is impregnated with 20 to 35% by weight of pulp. Here, the melamine resin liquid is in a solution state, and the pulp is a chip state in a small lump shape. Thereafter, the impregnated pulp with the melamine resin solution is dried in a steam dryer. As an example, the mixed product can be dried at 80-90 ° C. to a moisture content of 6-8%. When dried, it can be in the form of popcorn chunks, which are crushed to a size of 3 mm to 12 mm. And 2 to 5% by weight of an additive containing at least one of a hardener, a release agent and a colorant is added to the pulverized product.
On the other hand, the second melamine resin composition comprises the steps of mixing melamine and formaldehyde in a molar ratio of 1: 1.5 to 3 in a reactor and reacting the mixture with heating at 80 to 100 캜 under an alkali catalyst to prepare a melamine resin solution, Mixing 60 to 70% by weight of pulp with 20 to 35% by weight of pulp, drying the mixed material and pulverizing the mixed material to a size of 1 mm or less, and adding to the pulverized material an additive comprising at least one of a hardener, 2 to 5% by weight of the mixture is mixed and then milled to form a fine powder.
More specifically, first, melamine and formaldehyde are mixed in a molar ratio of 1: 1.5 to 3 in a reactor and reacted while heating at 80 to 100 ° C under an alkaline catalyst to prepare a melamine resin solution. Then, 60 to 70% by weight of the prepared melamine resin solution is impregnated with 20 to 35% by weight of pulp. Here, the melamine resin liquid is in a solution state, and the pulp is a chip state in a small lump shape. Thereafter, the impregnated pulp with the melamine resin solution is dried in a steam dryer. As an example, the mixed product can be dried at 80-90 ° C. to a moisture content of 6-8%. Once dried, it can be in the form of popcorn chunks, which are first crushed to a size of less than 1 mm. Then, 2 to 5% by weight of an additive containing at least one of a hardener, a releasing agent and a coloring agent is added to the pulverized product, followed by milling in a ball mill. It is preferable to mill for about 8 to 10 hours. The particle size of the ground powder may thus be such that the diameter is less than about 250 탆. By filtering the milled powders by using a vibration bar having 180 mesh, only the particles having a particle size of 180 mesh or less can be passed through to form the second melamine resin composition.
Thus, the first melamine resin composition and the second melamine resin composition may be prepared, and the first melamine resin composition and the second melamine resin composition may be mixed at a weight ratio of 1: 4 to 5.67 to prepare a mixed melamine resin composition.
The mixed melamine resin composition is preheated at a high frequency of about 100 to 150 DEG C, and then put into a mold and press-molded at a high temperature of 150 to 200 DEG C to produce a desired tableware.
Fig. 4 is a photograph of a tableware manufactured by a conventional method, and Figs. 5 to 6 are photographs of a tableware manufactured according to an embodiment of the present invention.
5 to 6, a tableware manufactured according to an embodiment of the present invention has a marble pattern compared to a tableware manufactured by the conventional method shown in FIG. 4, thereby manufacturing a tableware having a more refined appearance . Further, the first melamine resin composition and the second melamine resin composition may be different in hue to produce a more distinctive tableware. If a third melamine resin composition different in size and color is added in addition to the first and second melamine resin compositions, a melamine resin bowl having a marble pattern of a unique appearance can be provided.
The melamine resin tableware having the marble pattern described above, the method of manufacturing the melamine resin tableware, and the mixed melamine resin composition used therefor are not limited to the configuration and method of the embodiments described above, All or some of the embodiments may be selectively combined.
Claims (8)
Mixing the melamine resin compositions at a constant weight ratio; And
Placing the mixed melamine resin compositions into a molding part, and pressing the melamine resin composition to form a tableware,
Wherein the first melamine resin composition has a size of 3 mm to 12 mm and the second melamine resin composition has a size of 1 mm or less.
Wherein the first melamine resin composition and the second melamine resin composition are different in color from each other.
Wherein the first melamine resin composition and the second melamine resin composition each contain 60 to 70% by weight of a melamine resin, 20 to 35% by weight of a pulp and 2 to 5% by weight of an additive. Method of manufacturing dishware.
The first melamine resin composition may contain,
Reacting melamine and formaldehyde in a molar ratio of 1: 1.5 to 3 in a reactor and reacting the melamine and formaldehyde while heating at 80 to 100 ° C under an alkali catalyst to prepare a melamine resin solution;
Mixing 60 to 70% by weight of the prepared melamine resin solution with 20 to 35% by weight of pulp;
Crushing the mixed material so as to have a size of 3 mm to 12 mm; And
And 2 to 5% by weight of an additive containing at least one of a hardener, a releasing agent, and a coloring agent in the pulverized product is mixed with the melamine resin.
The second melamine resin composition may contain,
Reacting melamine and formaldehyde in a molar ratio of 1: 1.5 to 3 in a reactor and reacting the melamine and formaldehyde while heating at 80 to 100 ° C under an alkali catalyst to prepare a melamine resin solution;
Mixing 60 to 70% by weight of the prepared melamine resin solution with 20 to 35% by weight of pulp;
Crushing the mixed material so as to have a size of 1 mm or less; And
Mixing 2 to 5% by weight of an additive comprising at least one of a hardener, a releasing agent and a coloring agent in a pulverized mixture, and then milling the mixed powder to form a fine powder. The melamine resin tableware Way.
Wherein the first melamine resin composition and the second melamine resin composition are prepared by mixing at a weight ratio of 1: 4 to 5.67, and the melamine resin composition is prepared by mixing the first melamine resin composition and the second melamine resin composition.
In the first melamine resin composition in the mixed melamine resin composition,
Reacting melamine and formaldehyde in a molar ratio of 1: 1.5 to 3 in a reactor and reacting the melamine and formaldehyde while heating at 80 to 100 ° C under an alkali catalyst to prepare a melamine resin solution;
Mixing 60 to 70% by weight of the prepared melamine resin solution with 20 to 35% by weight of pulp;
Crushing the mixed material so as to have a size of 3 mm to 12 mm; And
Mixing 2 to 5% by weight of an additive comprising at least one of a hardener, a releasing agent and a colorant in the pulverized product,
In the second melamine resin composition in the mixed melamine resin composition,
Reacting melamine and formaldehyde in a molar ratio of 1: 1.5 to 3 in a reactor and reacting the melamine and formaldehyde while heating at 80 to 100 ° C under an alkali catalyst to prepare a melamine resin solution;
Mixing 60 to 70% by weight of the prepared melamine resin solution with 20 to 35% by weight of pulp;
Crushing the mixed material so as to have a size of 1 mm or less; And
Mixing 2 to 5% by weight of an additive comprising at least one of a hardener, a releasing agent and a colorant in the pulverized product, and then milling the mixture to form a fine powder,
Wherein the first melamine resin composition and the second melamine resin composition are mixed at a weight ratio of 1: 4 to 5.67. The melamine resin composition of claim 1, wherein the melamine resin composition is a melamine resin composition.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150101977A KR101762946B1 (en) | 2015-07-17 | 2015-07-17 | Melamin Resin crockery having marble pattern, manufacturing method thereof and Melamin Resin Composite for manufacturing melamin Resin crockery having marble pattern |
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| KR1020150101977A KR101762946B1 (en) | 2015-07-17 | 2015-07-17 | Melamin Resin crockery having marble pattern, manufacturing method thereof and Melamin Resin Composite for manufacturing melamin Resin crockery having marble pattern |
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| KR101762946B1 KR101762946B1 (en) | 2017-07-28 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190116945A (en) * | 2018-04-05 | 2019-10-15 | 제일화학주식회사 | Manufacturing method of melamine resin molded article |
| KR20200045107A (en) * | 2018-10-22 | 2020-05-04 | 주식회사 이더멜라민 | Melamin Resin crockery |
| KR20240030124A (en) | 2022-08-29 | 2024-03-07 | 주식회사 이더멜라민 | Manufacturing method of non-slip melamin resin crockery having engraved pattern |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102138776B1 (en) | 2018-09-14 | 2020-07-28 | 진수곤 | Method for producing melamine synthetic resin and molded product produced thereby |
| KR102670662B1 (en) * | 2023-08-16 | 2024-05-31 | 월포스 주식회사 | Manufacturing method of melamine resin molding material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2011218681A (en) * | 2010-04-09 | 2011-11-04 | Sumitomo Heavy Ind Ltd | Resin molding apparatus and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190116945A (en) * | 2018-04-05 | 2019-10-15 | 제일화학주식회사 | Manufacturing method of melamine resin molded article |
| KR20200045107A (en) * | 2018-10-22 | 2020-05-04 | 주식회사 이더멜라민 | Melamin Resin crockery |
| KR20240030124A (en) | 2022-08-29 | 2024-03-07 | 주식회사 이더멜라민 | Manufacturing method of non-slip melamin resin crockery having engraved pattern |
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