CN112623499A

CN112623499A - Manufacturing method of ultrathin adhesive coating anti-ink-pollution packaging material and container structure thereof

Info

Publication number: CN112623499A
Application number: CN201910950025.0A
Authority: CN
Inventors: 林紫绮; 林宪仁
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2021-04-09

Abstract

The invention provides a manufacturing method of an ultrathin adhesive coating anti-ink-pollution packaging material, which comprises the following steps: providing a substrate; forming an ink layer on the surface of the substrate; the ultrathin riveting material is prepared by powdering a multi-branched polyolefin polymer material to micron-scale or nano-scale and then emulsifying the obtained product into an aqueous solution; forming a riveting layer and coating the riveting layer on the ink layer; and forming a laminating layer on the riveting layer. By implementing the invention, the base material, the ink layer and the laminating layer can be combined into a whole in a high-stability manner, so that the problems of product defects and pollution caused by the ink layer are avoided.

Description

Manufacturing method of ultrathin adhesive coating anti-ink-pollution packaging material and container structure thereof

Technical Field

The invention relates to a manufacturing method of an ultrathin adhesion coating anti-ink-pollution packaging material and a container structure thereof, in particular to a manufacturing method of an ultrathin adhesion coating anti-ink-pollution packaging material for food packaging materials or containers and a container structure thereof.

Background

At present, the containers used by the containers, especially paper cups or lunch boxes with large use amount, are popular in foreign food culture, most of the printed ink materials are not covered, and are often directly exposed to contact users, even the contained contents are polluted, so that the safety of drinking or eating of the users is easily caused.

Moreover, at present, the legal regulations for using ink are not complete, and most of the ink used at present still contains more or less toxic substances, so that the risk of toxic contamination when a user uses a container or a paper cup is actually greatly beyond the imagination of common people.

On the other hand, the packaging material, container or paper cup is usually transported or stored in a nested or stacked manner to reduce the occupied volume, so that the ink material of the high binding ink layer printed on the packaging material, container or paper cup can contaminate other packaging material, container or paper cup nested or stacked in a contact manner.

When the conventional hot melt adhesive is used for bonding, the leveling property is poor, and the hot melt adhesive cannot effectively permeate into fiber pores of the combined material, so that the combined material cannot be riveted effectively.

The bonding part generates defects of gas expansion and swelling because of air expansion, and when the product is extruded by external force, the bonding or bonding part is easy to fold, separate or tear; after long-term use or storage, the problems of sticking or adhesion can cause damage to the product, such as crack extension, moisture infiltration, and mold growth ….

In view of the above-mentioned shortcomings of the prior art using hot melt adhesive, the inventor of the present invention has made active research and innovation based on the practical experience and professional knowledge of designing and manufacturing such products for many years, in order to create a new manufacturing method of ultra-thin adhesive coating anti-ink contamination packaging material and its container structure, and after repeated trial and improvement, finally create the present invention with practical value.

Disclosure of Invention

The main purpose of the present invention is to solve the problem of how to combine the substrate, the ink layer and the lamination layer into a whole in a highly stable manner, so as to avoid the product defects and the contamination of the ink layer.

The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme. The invention provides a manufacturing method of an ultrathin adhesive coating anti-ink-pollution packaging material, which comprises the following steps: providing a base material which is used as a base for preventing the packaging material from being polluted by the ink; forming an ink layer, wherein the ink layer is combined on at least one surface of the substrate and is provided with a plurality of first pores; preparing an ultrathin riveting material, wherein a multi-branched polyolefin polymer material with the weight average molecular weight of 5,000-500,000 is provided, the multi-branched polyolefin polymer material is powdered to micron or nanometer and then emulsified into an aqueous solution, and the ultrathin riveting material is provided with a plurality of riveting terminals; forming a riveting layer, coating the ultrathin riveting material with a thickness of less than 3 microns (inclusive) on at least the ink layer, and enabling part of the riveting terminal to penetrate into the first pore and be riveted into a whole; and forming a laminating layer, wherein the laminating layer with a plurality of second pores is formed on the riveting layer, and the other part of the riveting terminal penetrates into the second pores and is riveted into a whole.

The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.

The manufacturing method of the ultrathin adhesion coating anti-ink-pollution packaging material is characterized in that the ultrathin riveting material is further coated on the base material, the base material is provided with a plurality of third pores, and the ultrathin riveting material penetrates into the first pores, the second pores and the third pores through the riveting terminals and is riveted with the first pores, the second pores and the third pores into a whole.

In the manufacturing method of the ultrathin adhesive coating anti-contamination packaging material, the substrate is a paper substrate or a polymer substrate.

In the manufacturing method of the ultrathin adhesive coating anti-contamination packaging material, the ink layer is an aqueous ink layer.

In the manufacturing method of the ultrathin adhesive coating anti-contamination packaging material, the lamination layer is formed by polypropylene (PP), polyvinyl chloride (PVC), Polyethylene (PE), Low Density Polyethylene (LDPE), High Density Polyethylene (HDPE), Polystyrene (PS), acrylonitrile-butadiene-styrene copolymer (ABS), polyamide resin (Nylon), polyester resin (PET), or ethylene-vinyl acetate copolymer (EVA resin).

The manufacturing method of the ultrathin adhesive coating anti-ink-pollution packaging material further comprises a hot pressing step, wherein the hot pressing step is to apply the ink layer, the laminating layer and the base material with the temperature of more than 100 ℃, the linear pressure of 30-200kg/cm2 and the pressing time of less than 3 seconds.

The method for preventing the ultrathin adhesive coating from polluting the packaging material by the ink comprises the following steps of hot pressing, line pressure temperature equalization extrusion forming and forming, wherein the hot pressing step is carried out by a system, and the line pressure temperature equalization extrusion forming system comprises the following steps: a pressure roller; and a temperature equalizing roller, wherein the linear pressure of 30-200kg/cm is formed between the pressure roller and the temperature equalizing roller; the temperature equalizing roller provides the extrusion processing temperature above 100 ℃.

The method for preventing the ultrathin adhesion coating from polluting the packaging material further comprises a step of forming a container structure.

The purpose of the invention and the technical problem can be realized by adopting the following technical scheme

The invention also provides a container structure for preventing ink contamination, which is a manufacturing method of the ultrathin adhesive coating anti-ink contamination packaging material, and further comprises a step of forming the container structure so as to form the container structure for preventing ink contamination.

In the foregoing container structure for preventing ink contamination, the container structure for preventing ink contamination is a cup body, a bowl body or a box body.

Compared with the prior art, the invention has obvious advantages and beneficial effects.

Firstly, the defects that the air expansion and the rising of the air are generated at the adhering part due to the air expansion can be avoided;

secondly, the phenomenon that the joint part is gathered, separated or torn when the product is extruded by external force can be avoided;

thirdly, the ink layer can be ensured to be effectively protected by the film coating layer without causing pollution

Fourthly, the fiber is easy to level and penetrate into the fiber more easily, so that more stable combination is achieved; and

and fifthly, the problem that after the product is produced and after a long time, the problem at the joint part is diffused outwards to cause overall damage of the product, such as crack extension, water vapor infiltration, mould breeding … and the like can be avoided.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a flow chart of an embodiment of a manufacturing method of an ultrathin adhesive coating anti-ink-contamination packaging material;

FIG. 2A is a three-dimensional exploded view of a packaging material with a single-side coated film for preventing contamination of ink;

FIG. 2B is a three-dimensional exploded view of the ink contamination preventing packaging material with double-sided lamination;

FIG. 3 is a flow chart of an embodiment of a method of manufacturing an ultra-thin riveting material;

FIG. 4 is a diagram of an embodiment of an ultra-thin riveting material further coated on a substrate;

FIG. 5A is a perspective view of the embodiment of FIG. 4;

FIG. 5B is a cross-sectional view of the embodiment of FIG. 5A;

FIG. 6 is a diagram of an embodiment of a line pressure, uniform temperature extrusion molding system; and

fig. 7 is a view showing an example of a structure of a container for preventing contamination of ink.

Description of the symbols

S100: manufacturing method of ultrathin adhesive coating anti-ink-pollution packaging material

S10: providing a substrate S20: forming an ink layer

S30: manufacturing an ultrathin riveting material S40: forming a riveted layer

S50: forming a lamination layer S60: hot pressing step

S70: forming a container structure step S310: provides a polyolefin polymer material

S320: powdering to micron or nanometer level

S330: emulsifying into aqueous solution S70 to form container structure

100: ink contamination prevention packaging material 10: base material

110: third aperture 20: ink layer

210: first aperture 30: ultrathin riveting material

310: the rivet terminal 40: riveted layer

50: the lamination layer 510: second aperture

60: line pressure temperature equalization extrusion system 610: pressure roller

620: temperature equalizing roller 70: structural embodiment of container for preventing ink pollution

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the method for manufacturing the ultra-thin adhesive coating anti-contamination packaging material according to the present invention with reference to the accompanying drawings and preferred embodiments will be provided.

As shown in fig. 1, the present embodiment is a manufacturing method S100 of an ultrathin adhesive coating anti-contamination packaging material, which includes the following steps: providing a substrate S10; forming an ink layer S20; manufacturing an ultrathin riveting material S30; forming a riveting layer S40; and forming a lamination layer S50. Still further includes a hot pressing step S60 or still further includes a container structure forming step S70.

As shown in fig. 1, fig. 2A and fig. 2B, a substrate S10 is provided, the substrate 10 is used as a base of the packaging material 100 for preventing the contamination of the ink, i.e. a main supporting structure of the packaging material; the substrate 10 may be a paper substrate or a polymer substrate, such as plastic or silicone material …, which is easy to obtain and cost-effective.

Forming an ink layer S20, which is formed by bonding the ink layer 20 to at least one surface of the substrate 10, so that the substrate 10 can show various patterns or patterns of multiple colors by implementing the ink layer 20; the ink layer 20 has a plurality of first pores 210, and the ink layer 20 may be an aqueous ink layer.

As shown in fig. 3, the ultra-thin riveting material S30 is prepared by providing a multi-branched polyolefin polymer material S310 with a weight average molecular weight of 5,000 to 500,000, powdering the multi-branched polyolefin polymer material to micron-sized or nano-sized S320, and emulsifying the micro-sized or nano-sized multi-branched polyolefin polymer material into an aqueous solution S330, wherein the ultra-thin riveting material 30 can be effectively thinned by powdering to micron-sized or nano-sized S320.

The emulsified aqueous solution S330 is easy to level, and on the other hand, the aqueous solution can penetrate into the pores of various materials more easily, so that the multi-branched polyolefin and the combined material are riveted, the problem of too thick thickness caused by the colloidal adhesive can be solved, and the processing fluidity during application can be increased, and in addition, the ultrathin riveting material 30 has a plurality of riveting terminals 310, namely, 2 to 15 ten thousand of riveting terminals 310 are formed in a unit area by the multi-branched chain with the molecular weight of 2 to 15 ten thousand.

Forming a riveting layer S40, which is formed by coating the ultra-thin riveting material 30 with an ultra-thin thickness of 3 μm (inclusive) or less on at least the ink layer 20, and allowing a part of the riveting terminal 310 to penetrate into the first aperture 210 and be riveted into a whole; that is, 2 to 15 ten thousand riveting terminals 310 penetrate into the plurality of first pores 210 on the ink layer 20 in a unit area, thereby allowing the riveting layer 40 and the ink layer 20 to be tightly integrated.

Forming a lamination layer S50, which is to form the lamination layer 50 having a plurality of second apertures 510 on the riveting layer 40, and make another portion of the riveting terminals 310 penetrate into the second apertures 510 and rivet into a whole. That is, 2 to 15 thousands of rivet terminals 310 per unit area penetrate into the plurality of second pores 510 of the laminated film layer 50, so that the laminated film layer 50 and the rivet layer 40 are tightly integrated.

The lamination layer 50 may be formed of polypropylene (PP), polyvinyl chloride (PVC), Polyethylene (PE), Low Density Polyethylene (LDPE), High Density Polyethylene (HDPE), Polystyrene (PS), acrylonitrile-butadiene-styrene copolymer (ABS), polyamide resin (Nylon), polyester resin (PET), ethylene-vinyl acetate copolymer (EVA resin) …, or the like.

In some products, it is only necessary to make the ink layer 20 on one surface of the substrate 10, and at this time, the step of forming the lamination layer S50 may be performed on the other surface of the substrate 10 in advance, or after forming the riveting layer S40, the step of forming the lamination layer S50 on both sides of the substrate 10 may be performed.

As shown in fig. 4, 5A and 5B, in addition to the ink layer 20 having a plurality of first pores 210 and the shower layer 50 having a plurality of second pores 510, the base material 10 also has a plurality of third pores 110, so that when the ultra-thin riveting material 30 is further coated on the base material 10, the riveting terminal 310 will penetrate into the first pores 210, the second pores 510 and the third pores 110 and be riveted with the first pores 210, the second pores 510 and the third pores 110 into a whole.

That is, 2-15/ten thousand riveting terminals 310 are penetrated into the plurality of first pores 210 of the ink layer 20, the plurality of second pores 510 of the laminating layer 50 and the plurality of third pores 110 of the substrate 10 in a unit area, so that the laminating layer 50, the ink layer 20 and the substrate 10 can be tightly combined into a whole at the same time.

As shown in fig. 1 and 6, the embodiment of the manufacturing method S100 may further include a hot pressing step S60, in which the ink layer 20, the laminating layer 50 and the substrate 10 are combined, and the temperature is higher than 100 ℃ (inclusive), the pressure is applied at 2 of 30-200kg/cm, and the pressing time is less than 3 seconds.

The hot pressing step S60 is performed by a line pressure and temperature equalizing extrusion molding system 60, and the line pressure and temperature equalizing extrusion molding system 60 includes: a pressure roller 610; and a temperature equalizing roller 620, wherein a linear pressure of 30-200kg/cm is formed between the pressure roller 610 and the temperature equalizing roller 620; the temperature equalization roller 620 provides the extrusion temperature above 100 deg.C (inclusive).

In order to produce more frequently used products, the above manufacturing method may further include a step S70 of forming a container structure to produce a cup, bowl or box using the ultra-thin adhesive coating to prevent the contamination of the packaging material with the ink.

As shown in fig. 7, this embodiment further provides an ink contamination resistant container structure 70 made in accordance with the above-described method. The container structure 70 for preventing ink contamination may be a cup, a bowl, a box …, or the like.

While the foregoing embodiments have been described in a specific context of preferred embodiments, it will be appreciated by those skilled in the art that variations may be made in these embodiments without departing from the spirit of the invention.

Claims

1. A manufacturing method of ultrathin adhesion coating anti-ink-pollution packaging material is characterized by comprising the following steps:

providing a base material which is used as a base for preventing the packaging material from being polluted by the ink;

forming an ink layer, wherein the ink layer is combined on at least one surface of the substrate and is provided with a plurality of first pores;

preparing an ultrathin riveting material, wherein a multi-branched polyolefin polymer material with the weight average molecular weight of 5,000-500,000 is provided, the multi-branched polyolefin polymer material is powdered to micron or nanometer and then emulsified into an aqueous solution, and the ultrathin riveting material is provided with a plurality of riveting terminals;

forming a riveting layer, coating the ultrathin riveting material on the ink layer at least with the thickness of less than 3 microns, and enabling part of the riveting terminal to penetrate into the first pore and be riveted into a whole; and

and forming a laminating layer, namely forming the laminating layer with a plurality of second pores on the riveting layer, and enabling the other part of the riveting terminal to penetrate into the second pores and be riveted into a whole.

2. The method as claimed in claim 1, wherein the ultra-thin adhesive coating is further coated on the substrate, the substrate has a plurality of third holes, and the riveting terminal penetrates into the first, second and third holes and is riveted with the first, second and third holes into a whole.

3. The method of claim 1, wherein the substrate is a paper substrate or a polymer substrate.

4. The method of claim 1, wherein the ink layer is an aqueous ink layer.

5. The method of claim 1, wherein the lamination layer is formed of polypropylene, polyvinyl chloride, polyethylene, low density polyethylene, high density polyethylene, polystyrene, acrylonitrile-butadiene-styrene copolymer, polyamide resin, polyester resin, or ethylene-vinyl acetate copolymer.

6. The method for manufacturing the ultra-thin adhesive coating anti-contamination packaging material of any one of claims 1 to 5, further comprising a hot pressing step of applying a temperature of 100 ℃ or more, a line pressure of 30-200kg/cm2, and a pressing time of 3 seconds or less to the ink layer, the lamination layer, and the substrate.

7. The method of claim 6, wherein the hot pressing step is performed by a line-pressure temperature-equalizing extrusion molding system, and the line-pressure temperature-equalizing extrusion molding system comprises: a pressure roller; and a temperature equalizing roller, wherein the linear pressure of 30-200kg/cm is formed between the pressure roller and the temperature equalizing roller; the temperature equalizing roller provides the extrusion processing temperature above 100 ℃.

8. The method of contamination of ultra-thin adhesive coated ink repellent packaging material according to any one of claims 1 to 5 and claim 7, further comprising the step of forming a container structure.

9. An ink contamination preventive container structure characterized by being the ink contamination preventive container structure manufactured according to the manufacturing method of claim 8.

10. The ink contamination resistant container structure of claim 9 wherein the ink contamination resistant container structure is a cup, bowl or box.