KR102363232B1 - Method for manufacturing cup holder - Google Patents

Abstract

The present invention relates to a manufacturing method of a cup holder, and more specifically, to a manufacturing method of a cup holder, which can manufacture an environmentally friendly cup holder. The manufacturing method of the present invention comprises the steps of: processing a raw material containing biodegradable plastic into a developing plate provided with a plurality of grooves using a molding machine (S11); applying an adhesive to one end of the developing plate (S12); and manufacturing a finished product by folding the developing plate so that the one end and other end of the developing plate are attached thereto (S13).

Description

Cup holder manufacturing method {METHOD FOR MANUFACTURING CUP HOLDER}

The present invention relates to a method for manufacturing a cup holder, and more particularly, to a method for manufacturing a cup holder capable of manufacturing an environmentally friendly cup holder.

A cup holder refers to a device that covers the cup so that the cup containing the liquid can be safely held.

Such a cup holder is provided between the hand and the cup holding the cup, and is used to suppress heat exchange between the hand and the liquid material accommodated in the cup.

The cup holder is usually made of a paper material, but when the cup holder is made of the paper material, waterproofness is reduced and a waterproof coating is performed on the surface.

When a paper cup holder is coated with a coating material, the cup holder manufacturing process is complicated, durability is lowered due to repeated use, making reuse difficult, and environmental pollution caused by the coating material applied to the surface of the paper cup holder at the time of disposal is raised. there is.

In order to overcome the above problems, recently, a cup holder made of a plastic material was manufactured to improve waterproofness and to minimize waste of resources due to repeated use.

The prior art, Laid-Open Patent Publication No. 10-2016-0006931 (hereinafter referred to as the prior art) relates to a holder for a take-out cup using plastic, and more particularly, has a constant width and length enough to be gripped by hand while wrapping the cup. Using a transparent plastic sheet, a plurality of protrusions are formed so as to protrude continuously to the part in close contact with the cup, a recess is formed with a part held by hand, and an engaging part is formed at both ends of the transparent plastic sheet formed with these protrusions and recesses. By doing so, it is usable regardless of the size of the cup and prevents the name or trademark printed on the cup from being covered, as well as being easy to hold and preventing heat transfer.

However, this prior art has a problem that it is not environmentally friendly because it takes hundreds of years to disassemble when the plastic cup holder is buried.

The present invention has been devised to solve the above problems, and an object of the present invention is to provide a method for manufacturing a cup holder that can manufacture an environmentally friendly cup holder.

The present invention for the purpose of solving the above problems has the following configuration and features.

Processing a raw material containing a biodegradable plastic into a developing plate provided with a plurality of grooves using a molding machine (S11); applying an adhesive to one end of the spreading plate (S12); and folding the unfolding plate so that one end and the other end of the developing plate are attached (S13) to manufacture a finished product.

In addition, manufacturing a tubular intermediate product by piercing the raw material containing the biodegradable plastic with a rod (S21); and cutting the intermediate product to a predetermined size (S22).

In addition, inserting a jig whose width increases toward the upper side into the hollow of the workpiece manufactured in the step (S22) (S23); and applying heat to the processed product mounted on the jig to manufacture a finished product (S24); Further comprising, the rod may have a protrusion protruding outward along the longitudinal direction.

The present invention having the above configuration and characteristics has the effect that since biodegradable plastic is used as a raw material, it is easy to decompose at the time of disposal, so that an environmentally friendly cup holder can be manufactured.

1 is a schematic flowchart for explaining a method for manufacturing a cup holder according to an embodiment of the present invention.
Figure 2 is a schematic view for explaining the process of the cup holder manufacturing method according to an embodiment of the present invention.
3 is a schematic flowchart for explaining a method of manufacturing a cup holder according to another embodiment of the present invention.
4 is a schematic view for explaining the drawing step in the cup holder manufacturing method according to another embodiment of the present invention.
5 is a schematic view for explaining the jig mounting step and the heating step in the cup holder reporting method according to another embodiment of the present invention.

Since the present invention can have various changes and can have various forms, implementation examples (態樣, aspects) (or embodiments) will be described in detail in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

The terminology used herein is only used to describe a specific embodiment (aspect, aspect, aspect) (or embodiment), and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as comprises or consists of are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other features It is to be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

~1~, ~2~, etc. described in the present specification are only to be referred to to distinguish that they are different components, and are not limited to the order of manufacture, and their names in the detailed description and claims of the invention are may not match.

Throughout this specification, when a part is "connected" to another part, it includes not only the case of being "directly connected", but also the case of being "indirectly connected" with another element interposed therebetween. do.

Figure 1 is a schematic flowchart for explaining a method for manufacturing a cup holder according to an embodiment of the present invention, Figure 2 is a schematic diagram for explaining the process of a method for manufacturing a cup holder according to an embodiment of the present invention, 3 is a schematic flowchart for explaining a method for manufacturing a cup holder according to another embodiment of the present invention, and FIG. 4 is a schematic diagram for explaining a drawing step in a method for manufacturing a cup holder according to another embodiment of the present invention. , Figure 5 is a schematic view for explaining the jig mounting step and the heating step in the cup holder reporting method according to another embodiment of the present invention.

The cup holder manufacturing method according to the present invention relates to a method for manufacturing a biodegradable cup holder (H) that has the same characteristics as general plastics and is easily decomposed when discarded.

Hereinafter, a cup holder manufacturing method (hereinafter, 'first present method') according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2 .

1 and 2, the first present method (cup holder manufacturing method according to an embodiment of the present invention) includes a forming step (S11), an application step (S12), and an attaching step (S13).

The forming step (S11) is a step of processing the raw material H1 including the biodegradable plastic into a developing plate H2 provided with a plurality of grooves Ha using the forming machine 1 .

It was said that the raw material (H1) includes biodegradable plastic, and the biodegradable plastic is polylactic acid (PLA), polybutylene adipate terephthalate (PBAT), thermoplastic starch (TPS), polyhydroxyalkanoate ( PHA), aliphatic polyester (AP), polybutylene succinate (PBS), polyethylene succinate (PES), polyethylene succinate (PES), polyvinyl alcohol (PVA), polycaprolactone (PCL), etc. can

The above-described biodegradable plastic has the same properties as general plastics, but is completely decomposed into water, carbon dioxide, methane gas, biomass, etc. within several months to several years at the time of landfill (biodegradable bioplastic).

As described above, since the raw material H1 of the cup holder H manufactured by the first method includes biodegradable plastic, the cup holder H manufactured by the first method is made of the same material as general plastic. Unlike conventional plastics, which have excellent characteristics such as durability and waterproofness compared to conventional products, they are environmentally friendly because they are easily decomposed when discarded.

The raw material (H1) used in the first method may include illite together with the biodegradable plastic described above.

Illite is a fine porous material in its structure, has strong adsorption and ion exchange functions, and is known to emit negative ions and far-infrared rays in its natural state.

When the raw material (H1) contains illite, the cup holder (H) manufactured by the first method emits far-infrared rays, so it suppresses the growth of mold or bacteria in the cup holder (H) to prevent the cup holder (H) It has the advantage of improving the durability of the

Illustratively, the molding machine 1 may be a mold, and when the molding machine 1 is a mold, the raw material H1 is injected into the mold in a molten state to be cooled, and foamed from the mold to be foam-molded. Therefore, as the raw material H1 is taken out from the formwork, it may be manufactured as a developing plate H2 provided with a plurality of grooves Ha.

As another example, the molding machine 1 may include a mold 12 provided with a blade as shown in FIG. 2 . When the molding machine 1 includes a mold 12 provided with a blade as shown in FIG. 2 , the molding machine 1 includes a press 11 that moves up and down, and a mold 12 that is provided at the bottom of the press 11 and moves up and down. ) may be included.

As shown in FIG. 2 , the formwork 12 may include, for example, a plate material and a full knife 121 and a half knife 122 protruding downward from the lower portion of the plate material. The bankal 122 means that the protrusion length is shorter than that of the wankal 121 .

When the molding machine 1 includes the mold 12 as shown in FIG. 2 , the raw material H1 may be a sheet-like solid material (eg, foam-molded solid material), and in the forming step S11, the ) is formed along the periphery of the developing plate H2 when viewed in a plan view to cut the sheet-like solid material, and the half-knife H2 cuts the sheet-like solid material and takes the sheet-like solid material, and based on [B] in FIG. A groove (Ha) that is recessed from the plane of (H2) toward the bottom may be formed (see [A] in FIG. 2 ).

The molding machine 1 for performing the above-described molding step (S11) is described as an example, and is not limited to the above-described configuration, and as long as the development plate H2 is formed, various configurations may be included to replace or additionally include the aforementioned configuration. Of course you can.

The development plate H2 may have a shape curved upward when viewed in a plan view, and the plane (planar shape) of the development plate H2 is disposed below the upper curve and the upper curve, and is disposed below the upper curve. It may consist of a shorter lower curve, one connecting line connecting one end of the upper and lower curves (right connecting line), and the other connecting line connecting the other ends of the upper and lower curves (left connecting line). .

The development plate H2 may have a bent longitudinal direction formed by being curved from one side to the other side, and the groove Ha is exemplarily the width of the development plate H2 by connecting the upper curve and the lower curve. It may be formed along a direction (a direction orthogonal to the longitudinal direction on a plane).

The application step (S12) is a step of applying the adhesive 2a to one end of the developing plate H2 (see [B] in FIG. 2 ). Illustratively, the application step (S12) may be performed by the inserter 2 including a receiving portion in which the adhesive 2a is accommodated, a discharge portion provided below the receiving portion, and a valve for opening and closing the discharge portion. The input device 2 is not limited to the above configuration.

In the application step (S12), the adhesive 2a may be applied on a flat surface or a bottom surface of one side. The adhesive 2a may be an eco-friendly adhesive, and for example, the adhesive 2a may be a natural adhesive such as starch.

The attaching step (S13) is a step of manufacturing the finished product (cup holder H) by folding the developing plate H2 so that one end and the other end of the developing plate H2 are attached.

Illustratively, in the attaching step (S13), one end and the other end may be attached by the adhesive 2a by rolling the developing plate H2 to surround the cup so that one side plane and the other side bottom surface overlap. .

As described above, the first method includes a processing step (S11) of manufacturing a raw material (H1) containing biodegradable plastic into a spreading plate (H2), so that it is easy to decompose at the time of landfill (H) There is an advantage that can be manufactured.

In addition, since the processing step (S11) forms a number of grooves (Ha), the developing plate (H2) can be rolled up well in the attachment step (S13), and the cup can be effectively protected by giving an embossing effect, and the grooves ( H2) can be filled with air to improve thermal insulation.

Hereinafter, a method for manufacturing a cup holder according to another embodiment of the present invention (hereinafter, 'second present method') will be described with reference to FIGS. 3 to 5 .

3 to 5, the second present method (cup holder manufacturing method according to another embodiment of the present invention) is a drawing step (S21), a cutting step (S22), a jig mounting step (S23), and a heating step (S24) is included.

3 and 4 , the drawing step S21 is a step of manufacturing a tubular intermediate product by piercing the raw material H1 including the biodegradable plastic with the rod 3 .

Illustratively, the raw material H1 may be injection-molded, and it is of course that, like the raw material H1 in the first method, it may further include eliir.

The raw material H1 used in the second method has a configuration corresponding to that of the raw material H1 used in the first method H1. decide to do

The solid raw material H1 may move so that the rod 3 penetrates with respect to the rod 3 having a width smaller than the width of the raw material H1 in the drawing step S21. Here, the width refers to the vertical direction with reference to FIG. 4 .

Exemplarily in the drawing step (S21), the raw material H1 is transferred from the front end (left side with reference to FIG. 4) by the conveyer 4 including the roller 41 rotating with the shaft member 42 as the central axis. It can move to the rear end (right side based on FIG. 4), and as it moves to the rear end, the rod 3 disposed on the rear end penetrates the raw material H1 and is manufactured as a tubular intermediate product with a hollow inside. can be

The method of moving the raw material H1 in the drawing step S21 is described as an example, and of course, various methods may be used.

The cutting step (S22) is a step of cutting the intermediate product to a predetermined size. The cutting step (S22) may be exemplarily performed by a cutter (not shown) having a blade or a saw, and the intermediate product having a length parallel to the left-right direction in FIG. 4 is cut to have a smaller length. to manufacture a number of processed products (H3).

Each of the plurality of processed products (H3) is formed with a hollow cup into which the cup is inserted.

As such, the second present method has an advantage in that it is possible to more rapidly manufacture a plurality of cup holders (H) by including the drawing step (S21) and the cutting step (S22).

Meanwhile, the rod 3 used in the drawing step S21 may include a protrusion 31 protruding outward along the longitudinal direction.

Here, the outer side means a radial direction with respect to a center line parallel to the longitudinal direction of the rod 3 .

As described above, since the rod 3 performing the drawing step S21 has the protrusion 31 , the raw material H1 moves from the front end to the rear end, and thus forms a hollow of the processed product H3. It is possible to form a recessed groove (Ha).

In this way, since the rod 3 has the protrusion 31, it is possible to easily form the groove Ha for improving the cushioning feeling and heat insulation of the cup holder H while producing the processed product H3. .

3 and 5, in the jig mounting step (S23), the intermediate product is cut in the cutting step (S22) and the inner hollow of the manufactured product (H3) is a jig 5 that increases in width from the bottom to the top ) is inserted and installed.

Here, the upper side means the upper side with reference to FIG. 5, and the lower side means the lower side with reference to FIG. 5 .

The raw material H1 including the biodegradable plastic of the processed product H3 is molded and is mounted on the jig 5 in the jig mounting step S23 to temporarily increase the width from the bottom to the top. Here, the width means a length in the left-right direction with reference to FIG. 5 .

The heating step (S24) is a step of manufacturing a finished product (cup holder (H)) by applying heat to the processed product (H3) mounted on the jig (5).

Illustratively, the jig 5 may be a heating element such as an electrical resistor, and the jig 5 generates heat in the heating step (S24) so that the width increases from the lower part to the upper part (H3) temporarily deformed. It can be permanently deformed (increasing width from bottom to top) by applying heat to it.

In this way, the second present method includes the drawing step (S21) and the cutting step (S22) so that the workpiece (H3) can be manufactured in a faster time, and at the same time, the jig mounting step (S23) and the heating step (S24) There is an advantage in that it is possible to manufacture a cup holder (H) to surround a conventional cup that increases in width from the bottom to the top by including.

As described above, since the second method is formed of the raw material (H1) including biodegradable plastic, it is decomposed quickly during landfilling, and thus has the advantage of being environmentally friendly.

On the other hand, the raw material (H1) used in the first method and the second method may further include a condensation inhibitor (G). The biodegradable plastic and the condensation inhibitor (G) of the raw material (H1) may be mixed with particles of the condensation inhibitor (G) dispersed in a state in which the biodegradable plastic is molten, for example.

The condensation inhibitor (G), 0.2 parts by weight of an impact heating agent (G1) containing sodium acetate, tolylene diisocyanate and ethylenediamine (polyurea) formed through interfacial polycondensation of ethylenediamine (polyurea) containing 0.1 parts by weight of endothelial agent (G2), 0.3 parts by weight of shelling agent (G3) containing sulfur-cured ethylene-propylene diene monomer (Ethylene Propylene Diene Rubber), magnetite, polyacrylic acid, and polyoxy 0.2 parts by weight of a cationic agent (G4) containing ethylene (polyoxyethylene), 0.4 parts by weight of a heat conduction spacer (G5) containing carbon fibers with an aspect ratio of 20 or more, 0.3 parts by weight of a pressurizing agent (G6) containing iron (fe) It may include parts (the ratio of each component of the anti-condensation agent (G) was based on 0.2 parts by weight of the impact-heating agent).

Referring to FIG. 6, when describing the condensation inhibitor (G) in more detail, the shock exothermic agent (G1) of the condensation inhibitor (G) is an aqueous solution containing sodium acetate, and the solvent may be exemplarily water, and the sodium acetate is It may be dissolved in a supersaturated state in the solvent.

The impact heating agent (G1) is supersaturated with a solvent, and is in a very unstable state, so it hardens easily even with a slight impact, and can release heat contained in a liquid state. The impact heat generating agent (G1) may generate heat by being impacted by a pressurizing agent (G6), which will be described later.

It is preferable that 0.2 parts by weight of the impact heating agent (G1) is included. When the amount of the impact heating agent (G1) is less than 0.2 parts by weight, the heating effect is not large, and when it exceeds 0.2 parts by weight, the weight of the dew condensation inhibitor (G) increases and the raw material ( H1) (corresponding to 'GS' in FIG. 6) has a problem in that the dispersibility is lowered by moving downward.

The endothelial agent G2 surrounds the impact heating agent G1, and as described above, may include polyurea formed through interfacial polycondensation of tolylene diisocyanate and ethylenediamine.

When tolylene diisocyanay and ethylenediamine are stirred, interfacial polycondensation to form a shell (endodermis), but the presence of unreacted amine and the mixing process of oxygen and nitrogen atoms, or the amount present in other molecules in the composition A positive charge can be formed by attracting charged hydrogens, etc., through dipole interactions.

Illustratively, the impact heating agent (G1) may be accommodated in the endothelial agent (G2) in a liquid state by being heated after being stirred with tolylene diisocyanay and ethylenediamine in a solid state, and the impact heating agent (G1) is the endothelium The process existing inside the second (G2) is not limited to the above method and may vary.

The endothelial agent (G2) preferably contains 0.1 parts by weight. When the amount of the endothelial agent (G2) is less than 0.1 parts by weight, the impact heat generating agent (G1) containing 0.2 parts by weight cannot be sufficiently wrapped with a sufficient thickness to form a liquid impact heating agent ( G1) may be lost, and when it exceeds 0.1 parts by weight, there is a problem in that the heat generated by the impact heating agent (G1) is not easily transferred to the outside of the dew condensation inhibitor (G).

The envelope (G3) surrounds the endothelium (G2) as shown in FIG. 6 and is disposed outside the endothelium (G2), as described above, with sulfur-cured ethylene-propylene diene monomer (Ethylene Propylene Diene Rubber) 0.3 It may contain parts by weight.

Ethylene-propylene diene monomer (EPDM) is obtained by adding a non-conjugated diene during the hybrid polymerization of ethylene and propylene, and has excellent water resistance and ozone resistance.

Illustratively, the EPDM may include an ethylene-propylene copolymer, treated calcined kaolin vinyl silane, stearic acid, zinc oxide, trimethylquinoline, a paraffinic plasticizer, a processing aid, and a conductive carbon black.

EPDM is a hybrid polymer capable of peroxide or sulfur vulcanization, and EPDM with added sulfur has a faster shrinkage rate at a low temperature of 5° C. or less than EPDM with added peroxide.

That is, the sulfur-cured ethylene-propylene diene monomer is sulfur-added to the EPDM, and may further include dithiomorpholine, tetramethylthiuram disulfide, dibutyldithiocarbonate zinc, and ethylene thiourea in addition to sulfur.

It is preferable that 0.3 parts by weight of the sulfur-cured ethylene-propylene diene monomer in the shelling agent (G3) is included, but when less than 0.3 parts by weight is used, the coating agent (G2) to be described later and the heat conduction spacer to be described later are not sufficiently wrapped with a sufficient thickness. There is a problem in that the weight of the anti-condensation agent (G) increases when it exceeds 0.3 parts by weight.

The cationic agent (G4) is provided on the outer and inner surfaces of the shelling agent (G3), respectively, and as described above, magnetite, polyacrylic acid and polyoxyethylene are included. Thus, it was used to add the polarity of the envelope (G3).

Magnetite is magnetic when it receives an external magnetic field, but when the external magnetic field is removed, the residual magnetism disappears and there is no side effect due to residual magnetism. The magnetite may be embedded in the outer and inner surfaces of the envelope G3, respectively.

Polymethacrylic acid is coated on the surface of the magnetite, and contains a plurality of carboxyl groups to form a coordination bond with the magnetite at multiple bonding points, so that it is possible to increase the coating stability.

Polyoxyethylene may react with a carboxyl group that does not form a coordination bond with magnetite on the surface of polymethacrylic acid to form a stable bond through an amide bond to impart positive charge properties to the magnetite. The positive surface charge of the cationic agent (G4) may have a surface zeta potential of +30 mV or more.

It is preferable that 0.2 parts by weight of the cationic agent (G4) is used, but when it is less than 0.2 parts by weight, the positive charge is not sufficient, and when it exceeds 0.2 parts by weight, there is a problem in that the weight of the condensation inhibitor (G) is excessively increased.

The heat conduction spacer (G5) is provided between the endothelial material (G2) and the outer covering material (G3) to separate the endothelial material (G2) and the sheathing material (G3). Carbon fiber was used. The carbon fiber may have a thermal conductivity of about 200 W/mK, and may serve to transfer the heat generated by the impact heating agent (G1) to the shell material (G3) side.

It is preferable that 0.4 parts by weight of the heat conduction spacer (G5) is included. If it is less than 0.4 parts by weight, heat conduction is not sufficient. There is a problem of increasing

The pressurizing agent (G6) includes iron, is provided on the inner surface of the envelope (G3) to protrude inward, and may be provided in plurality at intervals from the inner surface of the envelope (G3).

The pressurizing agent (G6) applies an impact to the impact heat agent (G1) by pressing the impact heat agent (G1) as the shell material (G3) contracts, and preferably contains 0.3 parts by weight, but less than 0.3 parts by weight If it is, it is not possible to apply a sufficient impact to the impact heating agent (G1), and when it exceeds 0.3 parts by weight, there is a problem in that the weight of the condensation inhibitor (G) is excessively increased.

[A] of FIG. 6 shows a state in which the envelope (G3) is not contracted at a temperature exceeding 5°C. The sheathing agent (G3) and the endothelial material (G2) are spaced apart by a heat conductive spacer (G5), and their length in a state in which the sheathing material (G3) is not contracted, such as at a temperature exceeding 5°C of the above-described pressurizing agent Since the distance between the tentative sheathing agent G3 and the endothelial material G2 is shorter, the pressurizing agent G6 cannot pressurize the impact heating agent G1 in a state in which the sheathing agent G3 is not contracted.

As described above, since the envelope (G3) and the endothelial material (G2) have a positive charge, the endothelium (G2) and the envelope material (G3) generate a repulsive force, so that the envelope (G3) is not contracted. The pressurizing agent provided on the inner surface of the agent (G3) suppresses the pressure of the endothelial agent (G2).

In addition, when there are a large number of units (GU) of the condensation inhibitor (G), the neighboring units (GU) are spaced apart from each other by the repulsive force between the positively charged envelopes (G3). Dispersibility can be improved.

[B] of FIG. 6 is a view showing a state in which the envelope (G3) is contracted at a temperature of 5°C or less. If the temperature of the composition falls below 5° C. in a state in which the present composition containing the dew condensation inhibitor (G) is applied, as described above, the envelope (G3) is contracted, and the envelope (G3) and The separation distance of the endothelial material (G2) is reduced, and the pressurizing agent (G6) provided on the inner surface of the outer covering material (G3) penetrates the distance between carbon fibers or between the pores of the carbon fibers to pressurize the endothelial material (G2). By doing so, it is possible to apply an impact to the impact heating agent (G1) provided inside the endothelial agent (G2).

The impact heat agent (G1) generates heat as an impact is applied, and the heat is transferred to the shell agent (G3) through the heat conduction spacer (G5), and the temperature of the composition through the shell agent (G3) It can be increased to effectively suppress the formation of dew on the surface of the composition.

Through this, there is an advantage that it is possible to suppress (condensation suppression) from freezing dew formed on the surface of the present composition in cold weather such as winter.

It goes without saying that the envelope (G3) may be liquefied again later by the impact heating agent (G1) or heat applied from the outside to be restored to a reusable state. Various known techniques may be used for externally applying heat to the envelope (G3).

The present invention described above with reference to the accompanying drawings is capable of various modifications and changes by those skilled in the art, and such modifications and changes should be construed as being included in the scope of the present invention.

Molding machine: 1 Feeder: 2
Rod: 3 Turns: 31
Feeder: 4 Jig: 5
Cup holder: H Raw material: H1
Deployment plate: H2 Workpiece: H3
Home: Ha

Claims (4)

Processing a raw material containing biodegradable plastic into a developing plate having a plurality of grooves using a molding machine (S11);
applying an adhesive to one end of the developing plate (S12); and
manufacturing a finished product by folding the developing plate so that one end and the other end of the developing plate are attached (S13);
including,
The raw material further comprises illite and a dew condensation inhibitor (G),
The anti-condensation agent (G),
0.2 parts by weight of an impact heating agent (G1) containing sodium acetate, 0.1 parts by weight of an endothelial agent (G2) containing polyurea formed through interfacial polycondensation of tolylene diisocyanate and ethylenediamine , 0.3 parts by weight of a shelling agent (G3) containing sulfur-hardened ethylene-propylene diene monomer (Ethylene Propylene Diene Rubber), magnetite, polymethacrylic acid, polyoxyethylene, cation containing polyoxyethylene (G4) 0.2 parts by weight, an aspect ratio of 20 or more, including 0.4 parts by weight of a heat conductive spacer (G5) containing carbon fibers, 0.3 parts by weight of a pressurizing agent (G6) containing iron (fe),
The endothelial material (G2) surrounds the impact heat generating agent (G1), the outer skin material (G3) surrounds the endothelial material (G2) and at the same time shrinks at a temperature of 5°C or less, and the heat conduction spacer (G5) is It is provided between the endothelial agent (G2) and the shelling agent (G3), and the magnetite of the cationic agent (G4) is provided on the outer and inner surfaces of the shelling agent (G3), respectively, and the pressurizing agent (G6) is A method of manufacturing a cup holder, characterized in that the length of the pressurizing agent is shorter than the distance between the endothelial material (G2) and the outer covering material (G3), provided a plurality of spaced apart on the inner surface of the envelope (G3).
manufacturing a tubular intermediate product by piercing a raw material containing a biodegradable plastic with a rod (S21); and
cutting the intermediate product to a predetermined size (S22);
including,
inserting a jig whose width increases toward the upper side into the hollow of the workpiece manufactured in the step (S22) (S23); and
manufacturing a finished product by applying heat to the processed product mounted on the jig (S24);
further comprising,
The rod is a cup holder manufacturing method, characterized in that provided with a protrusion protruding outward along the longitudinal direction. delete delete

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