WO2020077584A1

WO2020077584A1 - Paper container with unfoamed layer

Info

Publication number: WO2020077584A1
Application number: PCT/CN2018/110781
Authority: WO
Inventors: 张乾彬; 张世勲
Original assignee: 张乾彬; 张世勲
Priority date: 2018-10-18
Filing date: 2018-10-18
Publication date: 2020-04-23

Abstract

Disclosed is a paper container (1) with an unfoamed layer, the paper container comprising a body (2), a heat insulating layer (3) and multiple fillers (4). The body (2) comprises a bottom plate (21) and a trunk portion (22), wherein the bottom plate (21) and the trunk portion (22) enclose an accommodation space (23) and an opening (24) in communication with the accommodation space (23). The body (2) at least comprises a paper layer (25). The heat insulating layer (3) is at least partially printed at an outer periphery of the truck portion (22) by means of a screen, and the heat insulating layer (3) at least comprises an unfoamed layer (31), wherein the unfoamed layer (31) comprises an aqueous acrylic-based resin part, foam powder and an aqueous additive part, wherein the aqueous acrylic-based resin part, the foam powder and the aqueous additive part are uniformly mixed and integrally form a substrate (32); and the unfoamed layer (31) has a foam temperature that is between 80 degrees centigrade and 100 degrees centigrade. The fillers (4) are uniformly distributed and filled in the substrate (32).

Description

Paper container with unfoamed layer

Technical field

The invention relates to a food container, especially a paper container with an unfoamed layer.

Background technique

Nowadays, when consumers buy soups for drinks, paper containers often cannot be effectively insulated when they hold high-temperature food, which may cause burns. Some people will set a heat insulation ring outside the container (such as a coffee cup) to achieve heat insulation. Generally, the heat-insulating ring is made of corrugated cardboard and other thick cardboard. Although it can effectively insulate, it needs to be additionally set with the heat-insulating ring when it is used. Therefore, it is not convenient to use and the heat-insulating ring is easy to slide down and cause the container to fall. Therefore, someone has developed a foaming container. The foaming container is coated with a heat insulation layer on the surface. The heat insulation layer is first subjected to high temperature and high pressure treatment to foam to form a foam layer. The heat-insulating layer can have good heat-insulating ability, so consumers can avoid burns when holding the container holding hot drinks or hot food through the heat-insulating layer of the container.

However, the foaming temperature of the existing foaming layer exceeds 100 degrees Celsius, and it is necessary to additionally heat the insulating layer during the manufacturing process to successfully foam the foaming layer. This process requires a lot of energy costs, so it will increase significantly The manufacturing cost of the foaming container, which in turn causes the selling price of the foaming container to increase, increasing the burden on the catering industry and consumers, and the existing foaming layer has a poor grip and is easy to slip on the user's hand, and Easy to make easy to fall, there are shortcomings that need to be improved.

Therefore, it is necessary to provide a novel and progressive paper container with an unfoamed layer to solve the above problems.

Summary of the invention

The main object of the present invention is to provide a paper container with an unfoamed layer. When the paper container with an unfoamed layer is filled with food or liquid with a relatively high temperature, the unfoamed layer starts on its own after being heated Compared with the existing foaming container, the foaming process can greatly reduce the manufacturing cost and time. In addition, the unfoamed layer has a plurality of fillers evenly distributed, which can increase the touch and friction to achieve massage and Anti-slip function.

To achieve the above object, the present invention provides a paper container with an unfoamed layer, which includes a body, a heat insulation layer, and a plurality of fillers. The body includes a bottom plate and a body portion. The bottom plate and the body portion surround an accommodation space and an opening communicating with the accommodation space. The body includes at least a paper layer. The heat-insulating layer is screen-printed at least partially on the outer peripheral surface of the body part. The heat-insulating layer includes at least an unfoamed layer, wherein the unfoamed layer includes an aqueous acrylic resin portion, a foamed powder, and an aqueous additive Part, wherein the aqueous acrylic resin part, the foaming powder and the aqueous auxiliary part are uniformly mixed and integrated to form a base material, the unfoamed layer has a foaming temperature, and the foaming temperature is between 80 Celsius and less than 100 Celsius Degrees. These fillers are evenly distributed in the substrate.

BRIEF DESCRIPTION

FIG. 1 is a perspective view of a preferred embodiment of the present invention.

FIG. 2 is an exploded view of a preferred embodiment of the invention.

3 is a cross-sectional view of a preferred embodiment of the present invention.

FIG. 4 is a partially enlarged view of FIG. 3.

FIG. 5 is a schematic diagram of foaming according to a preferred embodiment of the present invention.

FIG. 6 is a partially enlarged view of FIG. 5.

7 is a cross-sectional view of another preferred embodiment of the present invention.

FIG. 8 is a partially enlarged view of FIG. 7.

9 is a schematic diagram of foaming according to another preferred embodiment of the present invention.

FIG. 10 is a partially enlarged view of FIG. 9.

Symbol Description:

1,1A: paper container with unfoamed layer; 2: body; 3, 3A: thermal insulation layer; 4: filler; 21: bottom plate;

22: body part; 23: accommodating space; 24: opening; 25: paper layer; 26: waterproof layer;

31, 31A: unfoamed layer; 32: substrate; 33, 33A: foamed layer.

detailed description

The present invention will be further described below with reference to the drawings and specific embodiments, so that those skilled in the art can better understand the present invention and can implement it, but the cited embodiments are not intended to limit the present invention.

Please refer to FIGS. 1 to 6, which show a preferred embodiment of the present invention. The paper container 1 with an unfoamed layer of the present invention includes a body 2, a heat insulating layer 3 and a plurality of fillers 4.

The body 2 includes a bottom plate 21 and a body portion 22. The bottom plate 21 and the body portion 22 define an accommodating space and an opening 24 communicating with the accommodating space. The body 2 includes at least a paper layer 25. In this embodiment, the body 2 only includes a paper layer 25. Preferably, the inner surface of the body 2 is additionally covered with a waterproof layer 26 to prevent the body 2 from wetting and causing liquid leakage. It should be noted that, in this embodiment, the paper container 1 with an unfoamed layer is a cup, and in other embodiments, the paper container 1 with an unfoamed layer may also be another container (such as a bowl).

The heat-insulating layer 3 is screen-printed at least partially on the outer peripheral surface of the body portion 22, and the heat-insulating layer 3 includes at least an unfoamed layer 31, wherein the unfoamed layer 31 includes a water-based acrylic resin portion and a foam , And an aqueous auxiliary part, wherein the aqueous acrylic resin part, the foamed powder and the aqueous auxiliary part are uniformly mixed and integrally form a substrate 32, the unfoamed layer 31 has a foaming temperature, and the foaming temperature Between 80 degrees Celsius and less than 100 degrees. It is worth mentioning that industrial screen printing can be used for water-based, oily, resinous, emulsion, powder, etc., even coatings, adhesives can also be printed, so screen printing is very suitable as the heat insulation layer 3 of the present invention The method of coating on the outer peripheral surface of the body portion 22, and the printing process of screen printing is to gently print on the object to be printed by a scraper, and the scraper is usually made of rubber, the pressure during scraping The smaller size can avoid damage to the outer surface of the body 22.

The fillers 4 are filled into the base material 32 evenly. The particle touch of these fillers 4 can increase the friction of the user holding the insulation layer 3 to provide functions such as anti-slip and massage touch.

Further, each of the fillers 4 is a hard block, in this embodiment is a plastic block, and in other embodiments may be other materials such as glass blocks. Preferably, each of the fillers 4 is spherical, so as to avoid giving the user a sharp feeling when holding, and the ratio of the radial dimension of each filler 4 to the thickness of the heat insulation layer 3 is 0.25 to 0.5 to have The massage effect and anti-skid ability are better, and each of the fillers 4 is less likely to fall off from the substrate 32.

In actual use, when the paper container 1 with an unfoamed layer contains food or liquid (liquid in this embodiment), and the temperature of the contained liquid is lower than the foaming temperature (the foaming temperature is approximately 80 degrees Celsius) -100 degrees), the unfoamed layer 31 does not undergo a foaming process (as shown in FIGS. 3 and 4); when the temperature of the liquid is not lower than the foaming temperature, the unfoamed layer 31 starts The foaming process is performed by itself. After the foaming is completed, the unfoamed layer 31 forms a foamed layer 33 (as shown in FIGS. 5 and 6). The foamed layer 33 can have a more thermal insulation effect Therefore, the invention can greatly reduce the cost and time required for pre-foaming in the manufacturing process, and has better massage effect and anti-skid ability.

Preferably, the foamed powder accounts for 31% to 41% by weight of the unfoamed layer 31, and the aqueous additive accounts for 10% to 14% by weight of the unfoamed layer 31, the unfoamed layer 31 It also includes 1% to 3% by weight of water. In this embodiment, the aqueous acrylic resin portion accounts for 50% by weight of the unfoamed layer 31, the foamed powder accounts for 36% by weight of the unfoamed layer 31, and the aqueous additive accounts for the unfoamed 12% by weight of the layer 31, the unfoamed layer 31 further includes 2% by weight of water, which may have a lower foaming temperature, but it is not limited to this, and may be used by other manufacturers according to actual use According to the above requirements, the proportion of the unfoamed layer 31 is prepared according to the above conditions.

It should be noted that, in this embodiment, the heat insulation layer 3 gradually thickens from the opening 24 toward the bottom plate 21 (as shown in FIGS. 3 and 5), and the portion of the heat insulation layer 3 close to the bottom plate 21 It has better heat insulation capacity, and is better when it contains a small amount of high temperature liquid.

Compared with the above embodiment, as shown in FIGS. 7 to 10, in another embodiment of the present invention, the heat insulation layer 3A gradually extends from the opening 24 toward the bottom plate 21, and the heat insulation layer 3A is close to the The portion 24 of the opening 24 has better heat insulation capability, so it is more suitable for containing a large amount of high-temperature liquid. When the paper container 1A with an unfoamed layer contains high-temperature liquid, the unfoamed layer 31A of the heat-insulating layer 3A That is, the foamed layer 33A is formed, and the foamed layer 33A can have more heat insulation effect, and the heat insulation layer 3A can also have better massage effect and anti-skid ability through the fillers 4. The above embodiments are the same, so no more description will be given. In addition, in other embodiments, it is also necessary for the heat insulation layer to extend equally, which is not limited thereto.

In summary, the paper container with an unfoamed layer of the present invention, when the paper container with an unfoamed layer is filled with food or liquid with a relatively high temperature, the unfoamed layer starts the foaming process by itself after being heated Compared with the existing foaming container, the present invention can greatly reduce the manufacturing cost and time. In addition, the unfoamed layer has a plurality of fillers evenly distributed, which can increase the feeling of touch and friction to achieve massage and anti-skid. Features.

The present invention has been disclosed above with preferred embodiments, but those skilled in the art should understand that the embodiments are only used to depict the present invention and should not be construed as limiting the scope of the present invention. It should be noted that all changes and substitutions equivalent to the above-mentioned embodiments should be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

A paper container with an unfoamed layer, characterized in that it includes:

A body including a bottom plate and a body portion, the bottom plate and the body portion enclose an accommodating space and an opening communicating with the accommodating space, the body includes at least a paper layer;

A heat insulation layer, which is screen printed on the outer peripheral surface of the body part at least partially, the heat insulation layer includes at least an unfoamed layer, wherein the unfoamed layer includes a water-based acrylic resin portion, a foamed powder, and a water-based auxiliary Agent part, wherein the aqueous acrylic resin part, the foaming powder and the aqueous auxiliary agent part are uniformly mixed and integrated to form a base material, the unfoamed layer has a foaming temperature, and the foaming temperature is between 80 Celsius and less than Between 100 degrees

A plurality of fillers are evenly distributed in the substrate.
The paper container with an unfoamed layer according to claim 1, wherein each of the fillers is a hard block.
The paper container with an unfoamed layer according to claim 1, wherein each of the fillers is spherical, and the ratio of the radial dimension of each filler to the thickness of the heat insulation layer is 0.25 to 0.5.
The paper container with an unfoamed layer according to claim 1, wherein the foamed powder accounts for 31% to 41% by weight of the unfoamed layer.
The paper container with an unfoamed layer according to claim 1, wherein the aqueous additive accounts for 10% to 14% by weight of the unfoamed layer.
The paper container with an unfoamed layer according to claim 1, wherein the unfoamed layer further comprises 1% to 3% by weight of water.
The paper container with an unfoamed layer according to claim 1, wherein the aqueous acrylic resin portion accounts for 50% by weight of the unfoamed layer, and the foamed powder accounts for 36% of the unfoamed layer By weight, the aqueous additive accounts for 12% by weight of the unfoamed layer, and the unfoamed layer further includes 2% by weight of water.
The paper container with an unfoamed layer according to any one of claims 1 to 7, wherein the heat insulating layer gradually thickens from the opening toward the bottom plate.
The paper container with an unfoamed layer according to any one of claims 1 to 7, wherein the heat insulating layer extends thinly from the opening toward the bottom plate.
The paper container with an unfoamed layer according to any one of claims 1 to 7, wherein the inner surface of the body is additionally provided with a waterproof layer.