WO2010130070A1

WO2010130070A1 - Paper cup and cup sleeve

Info

Publication number: WO2010130070A1
Application number: PCT/CN2009/000684
Authority: WO
Inventors: 黄志贤
Original assignee: 伟盟工业股份有限公司
Priority date: 2009-05-12
Filing date: 2009-06-22
Publication date: 2010-11-18
Also published as: CN101884489A

Abstract

A cup sleeve (100) comprises a paper-made body (110) with a biodegradable adhesive layer (120) and a paper-made heat insulating layer (130) on the outside of the paper-made body. The paper-made heat insulating layer (130) is pasted to the paper-made body (110) with the biodegradable adhesive layer (120). Plurality of projections (132) aligned continuously are formed on the surface of the paper-made heat insulating layer (130). A paper cup (200) comprises a paper-made body (210), a biodegradable coating layer (220), a biodegradable adhesive layer (230) and a paper-made heat insulating layer (240). The biodegradable coating layer (220) and the biodegradable adhesive layer (230) are provided on the inside and outside of the paper-made body (210), respectively. The paper-made heat insulating layer (240) is pasted to the outside of the paper-made body (210) with the biodegradable adhesive layer (230). Plurality of projections (242) aligned continuously are formed on the surface of the paper-made heat insulating layer (240). A space (136,244) is provided between each projection (132,242) and the biodegradable adhesive layer (120,230).

Description

Paper cups and cups

This invention relates to a paper cup and a cup, and more particularly to an insulated paper cup and insulated cup. Background technique

With the public's emphasis on environmental issues, disposable food containers have been made from cardboard, such as paper cups, paper bowls, and paper trays. However, the paper container itself is not waterproof, so a polyethylene (PE) protective film is placed on the inside of the paper container to prevent the water from directly penetrating the paperboard and causing the paper container to collapse. However, as a result, the paper food container cannot be completely decomposed after being discarded. Although the food container described above can be treated by incineration, it is also easy to generate exhaust gas during combustion. Therefore, the food container described above is likely to become a major source of environmental pollution after use.

Furthermore, the food containers that are currently used at one time are mostly single-layer thin-walled structures. Therefore, when hot foods such as hot drinks and hot soups are contained, since the food containers themselves do not have a heat insulating effect, the hot air of the hot foods is directly In addition to the opening, it is more fully transmitted to the food container as a whole and diverges outward. Therefore, when the user holds the food container by hand, the portion in contact with the food container is liable to be burnt by the hot air.

In addition, the existing paper food containers have a smooth surface, and when the user holds the food container by hand, it is still easy to slip due to slippery, especially when the oily food is contained. Invention disclosure

Accordingly, it is an object of the present invention to provide a cup having a biodegradable material and having a textured structure. Not only is it heat-insulating, non-slip, but completely biodegradable.

According to an embodiment of the invention, a cup cover comprises at least a paper body, a biodegradable adhesive layer and a paper insulation layer. The paper body is wound from a cardboard into a cylindrical structure having openings on the upper and lower sides. The biodegradable adhesive layer is located on the outside of the paper body, and the paper insulation layer is attached to the outer side of the paper body through a biodegradable adhesive layer. Further, a plurality of continuously arranged projections are formed on the surface of the paper heat insulating layer, and a gap is formed between each of the projections and the biodegradable adhesive layer.

Another object of the present invention is to provide a paper cup in which a conventional plastic film is replaced with a biodegradable material and has a concave-convex structure. Not only is it heat-insulating, non-slip, but completely biodegradable. According to another embodiment of the present invention, a paper cup includes at least a paper body, a biodegradable coating layer, a biodegradable adhesive layer, and a heat insulating layer. The biodegradable coating is located on the inside of the paper body, while the biodegradable layer is on the outside of the paper body. The heat insulating layer is attached to the outer side of the paper body through the biodegradable adhesive layer, and a plurality of continuously arranged protrusions are formed on the surface of the heat insulating layer. Wherein, there is a gap between each of the protruding portions and the biodegradable adhesive layer.

According to still another embodiment of the present invention, a paper cup includes at least a paper body, a biodegradable coating layer, a first biodegradable adhesive layer, a paper layer, a second biodegradable adhesive layer, and a heat insulating layer. The biodegradable coating layer is located inside the paper body, and the first biodegradable rubber layer is located outside the paper body. The paper layer is attached to the outside of the paper body by a first biodegradable adhesive layer. The second biodegradable adhesive layer is located outside the paper layer, and the heat insulating layer is attached to the outer side of the paper layer through the second biodegradable adhesive layer, and the surface of the heat insulating layer forms a plurality of continuously arranged convex portions. There is a gap between each of the protruding portions and the paper layer.

The paper cup and cup of the present invention are applied with a biodegradable material. Moreover, the paper cup and the cup sleeve have protrusions, and the gap between each of the protrusions and the paper body contains air, which can effectively block the heat conduction and accelerate the decomposition speed of the paper cup and the cup sleeve after being discarded. Therefore, in a non-closed space of appropriate temperature and humidity, the paper cup and the cup can be quickly and completely decomposed into water and carbon dioxide. Water and carbon dioxide can be returned to the environment for biological reuse. Furthermore, the continuation of the paper cup and the surface of the cup sleeve also increases the friction of the user when holding the paper cup. BRIEF DESCRIPTION OF THE DRAWINGS

The above and other objects, features, advantages and embodiments of the present invention will become more apparent and understood.

1 is a cross-sectional structural view of a cup sleeve according to an embodiment of the present invention;

2 is a perspective view of the cup of FIG. 1; FIG. 3 is a cross-sectional structural view of a paper cup according to another embodiment of the present invention;

Figure 4 is a perspective view of the paper cup of Figure 3;

FIG. 5 is a cross-sectional structural view of a paper cup according to still another embodiment of the present invention.

[Main component symbol description]

100: Cup set 110: Paper body

120: Biodegradable adhesive layer 130: Paper insulation layer

132: Projection 134: Attachment 136: void 140: biodegradable

200: Paper cup 210: Paper body

210: Cover layer 230: glue layer

240: Paper insulation 242: Projection

244: Void 300: paper cup

310: Paper body 320: Biodegradable

330: first biodegradable adhesive layer 340: paper layer

350: second biodegradable adhesive layer 360: paper insulation layer The best way of achieving the invention

Please refer to FIG. 1, which is a cross-sectional structural view of a cup sleeve according to an embodiment of the present invention. The cup 100 has a paper body 110, a biodegradable adhesive layer 120 and a paper insulation layer 130. The paper body 110 is wound from a cardboard into a cylindrical structure having openings on the upper and lower sides. The outer side of the paper body 110 has a biodegradable adhesive layer 120, and the paper heat insulating layer 130 is attached to the outside of the paper body 110 through the biodegradable adhesive layer 120.

The biodegradable gel layer 120 is composed entirely of biodegradable materials such as polylactic acid, biodegradable polyester, polyol or a mixture of any of the foregoing. Therefore, the cup 100 is completely biodegradable, and the cup can be quickly and completely decomposed into water and carbon dioxide in a non-closed space of appropriate temperature and humidity. Water and carbon dioxide can be returned to the environment for biological reuse.

The paper insulation layer 130 has a plurality of protrusions 132 on the surface thereof, and the longitudinally adjacent protrusions 132 have an attachment portion 134. The attachment portion 134 of the paper insulation layer 130 is attached to the biodegradable layer 120. The outside of the paper body 110. There is a gap 136 between each of the projections 132 and the biodegradable adhesive layer 120. The projections 132 provide a non-smooth surface on the surface of the paper insulation layer 130, which increases the friction of the user when holding the paper cup, thereby reducing the chance of the user tipping over due to slippery. Further, the air gap 134 has air to form a heat insulating medium, which effectively blocks heat conduction.

Additionally, the paper body 110 of the cup 100 can have a biodegradable coating 140 therein. The biodegradable coating layer 140 is composed of a biodegradable material such as polylactic acid, a biodegradable polyester, a polyol, or a mixture of any combination thereof. The biodegradable coating layer 140 forms a waterproof film on the inside of the paper body 110.

FIG. 2 is a perspective structural view of the cup sleeve of FIG. 1. FIG. As shown in FIG. 2, the paper body of the cup 100 There is a paper insulation layer 130 outside the 110. The projections 132 on the paper insulation layer 130 are arranged in a lateral or oblique direction. In this embodiment, the projections 132 on the paper insulation layer 130 are arranged in a laterally continuous manner outside the paper body 110, and the longitudinally adjacent projections 132 have an attachment portion 136, which is insulated by paper. The layer 130 is attached to the outside of the paper body 110 with an attachment portion 134. And in this embodiment, the protrusions 132 have the same size.

When the cup 100 is discarded after use, in addition to the gap 136 increasing the area of the cup 100 in contact with the air, since the paper insulation layer 130 is only partially attached to the paper body 110, it can help accelerate biodegradation. rate.

Referring to FIG. 3, a cross-sectional structural view of a paper cup according to another embodiment of the present invention is shown. The paper cup 200 includes a paper body 210, a coating layer 220, a glue layer 230, and a paper insulation layer 240.

As shown in FIG. 3, the paper body 210 has a generally cup shape with an accommodation space in the middle. The inner side of the paper body 210, that is, the side of the paper body 210 that contacts the food, has a coating layer 220 to form a protective film so that the paper body 210 is not penetrated by the moisture of the contents. The outer side of the paper body 210 has a glue layer 230.

Both the cladding layer 220 and the glue layer 230 are composed of biodegradable materials. Biodegradable materials such as polylactic acid, biodegradable polyesters, polyols or mixtures of any of the foregoing. Therefore, the paper cup 200 is completely biodegradable, and the paper cup can be quickly and completely decomposed into water and carbon dioxide in a non-closed space of appropriate temperature and humidity. Water and carbon dioxide can be returned to the environment for biological reuse.

The paper heat insulating layer 240 is attached to the outside of the paper body 210 through the adhesive layer 230. The paper heat insulating layer 240 has a plurality of projections 242 on the surface thereof, and a gap 244 is formed between each of the projections 242 and the adhesive layer 230. The projections 242 provide a non-smooth surface to the surface of the insulating layer 240, which increases the friction of the user when holding the paper cup, thereby reducing the chance of the user tipping over due to slippery.

Further, the air gap 244 has air to form a heat insulating medium, which effectively blocks heat conduction. In addition, the void 244 also increases the area of the insulated paper cup 200 in contact with the air after the paper cup 200 is discarded, thereby assisting in the decomposition of the paper cup 200 and accelerating the decomposition rate.

Fig. 4 is a perspective structural view showing the paper cup of Fig. 3. As shown in Fig. 4, the paper body 210 of the paper cup 200 has a paper insulation layer 240 outside. The projections 242 on the paper insulation layer 240 are continuously arranged outside the paper body 210. In this embodiment, the projections 242 are the same size.

FIG. 5 is a cross-sectional view showing a paper cup according to another embodiment of the present invention. The paper cup 300 includes a paper body 310, a biodegradable coating layer 320, a first biodegradable adhesive layer 330, and a paper layer. 340. The second biodegradable adhesive layer 350 and the paper insulation layer 360. The paper body 310, the biodegradable coating layer 320, and the first biodegradable adhesive layer 330 are similar to the foregoing embodiment, except that in the embodiment, the paper insulation layer 360 is not directly passed through the first creature. The decomposable adhesive layer 330 is attached to the paper body 310, and is attached to the paper layer 340 by the second biodegradable adhesive layer 350. The paper layer 340 is attached to the paper through the first biodegradable adhesive layer 330. On the body 310.

Therefore, at the time of manufacture, the paper body 310 having the biodegradable coating layer 320 and the first biodegradable adhesive layer 330 inside and outside may be separately manufactured, and the second biodegradable adhesive layer 350 may be advanced outside the paper layer 340. A paper insulation layer 360 is attached. The paper layer 340 is attached to the outside of the paper body 310 by a hot press method to form a paper cup 300.

Alternatively, a layer of biodegradable coating may be applied directly to the inside of the paper layer 340 having the insulating layer 350 during processing. The paper layer 340 is then wound into a cylindrical structure having an opening above and below, i.e., into a heat insulating cup. Increased the diversity and convenience of the processing.

As is apparent from the above embodiments of the present invention, the paper cup and the cup sleeve to which the present invention is applied have the following advantages. First, the surface of the paper cup and the cup sleeve has a convex portion, and air is provided in the gap between each convex portion and the paper body to effectively block heat conduction.

Second, replacing the traditional plastic film with a biodegradable coating, the paper cup and the cup still have a good water-proof effect. Moreover, the gap between the protruding portion of the paper cup and the surface of the cup and the paper body increases the contact between the discarded paper cup and the cup sleeve and the air, and accelerates the decomposition speed of the paper cup and the cup sleeve after being discarded. Therefore, in a non-closed space of appropriate temperature and humidity, the paper cup and the cup can be quickly and completely decomposed into water and carbon dioxide. Water and carbon dioxide can be returned to the environment for biological reuse.

Third, the continuous arrangement of the paper cup and the surface of the cup sleeve increases the friction of the user when holding the paper cup, reducing the chance of the user knocking over due to slippery. ..

The present invention has been disclosed in the above embodiments, but it is not intended to limit the invention. Any person skilled in the art will be able to make various changes and modifications without departing from the spirit and scope of the invention, and the scope of the invention is defined by the scope of the claims. Industrial applicability

The paper cup and cup sleeve to which the present invention is applied have a biodegradable material. Moreover, the paper cup and the cup sleeve have protruding portions, and the air gap between each protruding portion and the paper body contains air, which can effectively block the heat conduction and also accelerate the decomposition speed of the paper cup and the cup sleeve after being discarded. Therefore, in a non-closed space of appropriate temperature and humidity In between, the paper cup and the cup can be quickly and completely broken down into 7j and carbon dioxide. Water and carbon dioxide can be returned to the environment for biological reuse. Furthermore, the continuous arrangement of the paper cup and the surface of the cup sleeve also increases the frictional force of the user when holding the paper cup.

Claims

Claim

A cup sleeve, characterized in that it comprises at least:

a paper body, which is wound by a cardboard into a cylindrical structure having an opening above and below;

a biodegradable adhesive layer on the outside of the paper base;

a paper insulation layer attached to the outside of the paper body by the biodegradable rubber layer, and the surface of the paper insulation layer has a plurality of continuously arranged protrusions, the protrusions and the paper There is a gap between the bodies.

2. A cup sleeve according to claim 1 wherein the biodegradable coating layer is a mixture of polylactic acid, biodegradable polyester, polyol or any combination of the above.

3. A cup sleeve according to claim 1, wherein the projections of the paper insulation layer are arranged in a transverse or oblique direction.

The cup sleeve according to claim 1, wherein the protruding portion of the paper heat insulating layer has a uniform size.

5. The cup of claim 1 further comprising a biodegradable coating on the inside of the paper body.

6. A paper cup, characterized in that it comprises at least:

a paper body;

a biodegradable coating layer on the inside of the paper body;

a biodegradable adhesive layer located outside the paper body;

a paper insulation layer attached to the outside of the paper body by the biodegradable rubber layer, and the surface of the paper insulation layer has a plurality of continuously arranged protrusions, wherein the protrusions and the protrusions There is a gap between the biodegradable adhesive layers.

7. A paper cup according to claim 6 wherein the biodegradable coating layer is a mixture of polylactic acid, biodegradable polyester, polyol or any combination of the above.

8. A paper cup according to claim 6 wherein the biodegradable layer is a polylactic acid, a biodegradable polyester, a polyol or a mixture of any of the foregoing.

9. A paper cup according to claim 6, wherein the projections of the paper insulation layer are arranged in a transverse or oblique direction.

The paper cup according to claim 6, wherein the protruding portions of the paper heat insulating layer have the same size.

11. A paper cup, characterized in that it comprises at least:

a paper body;

a biodegradable coating on the paper; inside the body;

a first biodegradable adhesive layer located outside the paper body;

a paper layer attached to the outside of the paper body by the biodegradable adhesive layer;

a second biodegradable adhesive layer located outside the paper layer and

a paper insulation layer attached to the outside of the paper layer by the second biodegradable adhesive layer, and the surface of the paper insulation layer has a plurality of continuously arranged protrusions, wherein the protrusions There is a gap between the second biodegradable adhesive layer.

The paper cup according to claim 11, wherein the biodegradable coating layer is a polylactic acid, a biodegradable polyester, a polyol, or a mixture of any combination thereof.

13. A paper cup according to claim 11 wherein the first biodegradable layer is a polylactic acid, a biodegradable polyester, a polyol or a mixture of any of the foregoing.

14. A paper cup according to claim 11 wherein the second biodegradable layer is a polylactic acid, a biodegradable polyester, a polyol or a mixture of any of the foregoing.

The paper cup according to claim 11, wherein the projections of the paper insulation layer are arranged in a lateral or oblique direction.

The paper cup according to claim 11, wherein the protruding portions of the paper heat insulating layer have the same size.