TWM569193U - Paper straw - Google Patents

Abstract

A paper suction tube defining a suction channel extending longitudinally along a central axis, the paper suction tube comprising a suction portion and an insertion portion spaced along the central axis, the suction portion being in the shape of a flat ring, the insertion The part is obliquely ring-shaped. The paper straw further comprises at least two inner and outer stacks and mutually heat-compressed tube walls, each of the tube walls being spirally wound along a central axis by a long piece of paper, and each of the tube walls comprises a base paper layer, and at least one coating layer bonded to the side of the base paper layer, the at least two tube walls being connected to each other by heat-pressure fusion of the at least one laminating layer therebetween. By combining the tube wall heat-pressing into the paper straw, it can be safe and environmentally friendly.

Description

Paper straw

The present invention relates to a straw, and more particularly to a paper straw made of paper and suitable for sucking fluid substances.

Traditional straws are generally made of plastic materials. They are usually discarded as garbage after use. However, due to the large amount of plastic straws, the world produces a huge amount of plastic waste every day. In addition to waste of the earth's resources, waste will cause harm to the environment. In addition, plastic pipettes still have plasticizer residues, and the problem of plasticizers or toxic substances will be precipitated when smoking hot drinks, which is a hazard to human health.

In order to solve the problem of the traditional plastic straws, a variety of paper straws have appeared on the market, which are formed by bending paper sheets and overlapping portions at the edges, which are adhered by adhesive, which can achieve the purpose of reducing environmental pollution. However, when used, when it is immersed in a drink and used for sucking, the adhesive for sticking will slowly dissolve and penetrate into the drink, thereby affecting human health. Therefore, the design of the paper straw has been improved.

Accordingly, it is an object of the present invention to provide a paper straw that overcomes at least the disadvantages of the prior art.

Thus, the novel paper straw defines a suction channel extending longitudinally along a central axis, the paper suction tube comprising a suction portion and an insertion portion spaced along the central axis, the suction portion being in the shape of a flat ring. The insertion portion has an oblique shape and is not parallel to the suction portion. The paper straw further comprises at least two inner and outer stacks and mutually heat-compressed tube walls, each of the tube walls being spirally wound along a central axis by a long piece of paper, and each of the tube walls comprises a base paper layer, and at least one coating layer bonded to the side of the base paper layer, the at least two tube walls being connected to each other by heat-pressure fusion of the at least one laminating layer therebetween.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to Figures 1, 2 and 3, in a first embodiment of the novel paper straw, the paper suction tube defines a suction channel 2 extending longitudinally along a central axis 1 and further comprising a phase along the central axis 1 One of the suction portions 3 and one insertion portion 4 are spaced apart. The suction portion 3 has a flat annular shape, and the insertion portion 4 has an oblique ring shape and is not parallel to the suction portion 3, and is suitable for piercing the sealing film or inserting the cover. The paper has the longest length L projected on the central axis 1 of 150 to 250 mm, and the diameter of the paper straw is 4 to 15 mm. Preferably, the paper straw is projected on the central axis 1 for the longest length. L is 170 mm, and the diameter of the paper straw is 6 mm or 12 mm.

Looking further at the structure of the paper pipette, the paper pipette further comprises two pipe walls 5 which are internally and externally laminated and mutually thermocompressively combined. It should be noted that the number of pipe walls 5 is not limited to two, and the number can be increased according to actual needs. In order to increase the thickness and hardness. Each of the tube walls 5 is formed by a long piece of paper 6 (see Fig. 4) spirally wound along the central axis 1, and the edges of the elongated sheet 6 are adjacent to each other and form a strip along The central axis 1 is a helically extending spiral 51. The longitudinal section thickness of each of the tube walls 5 is uniform.

One of the tube walls 5 is located at the helix 51 of the tube wall 5 of the inner ring, and is offset from the spiral line 51 of the tube wall 5 of one of the tube walls 5 at the outer ring. The pitches P of the spiral lines 51 of the pipe walls 5 are equal, and the two adjacent spiral wires 51 are vertically spaced by a half pitch P to cooperate to form a multi-thread thread equally spaced along the central axis 1. .

Each of the tube walls 5 includes a base paper layer 52, and two layers are respectively coated with a coating layer 53 bonded to both inner and outer sides of the base paper layer 52. Each of the coating layer 53 is made of polylactic acid (PLA) raw material or polyethylene (PE) which can be naturally decomposed into water and carbon dioxide by a living being, and can of course be different according to national environmental regulations or actual use requirements. The use of PE-based environmentally friendly coatings, which can be naturally decomposed and can be recycled without harm to the environment. Each of the base paper layers 52 is a food grade white kraft paper, and the food grade white kraft paper is naturally pulverized and decomposed over a period of time under the exposure of sunlight or ultraviolet rays without affecting the environment. The tube walls 5 are connected to each other by heat-pressure fusion of adjacent corresponding coating layers 53. It is worth mentioning that, in the portion where the pipe walls 5 are connected, only one layer of the coating layer 53 can be used for hot-pressure fusion, so in other embodiments, one of the pipe walls 5 can be The coating layer 53 facing the other side of the tube wall 5, for example, the tube wall 5 located on the outer ring, is omitted, and the laminating layer 53 located on the inner side can be omitted, which will not be described below.

Referring to FIG. 4, at the time of manufacture, two long paper sheets 6 are spirally wound by a paper pipe suction machine (not shown), and heat-sealed and welded to form a long pipe body, and then according to the required length. The long tubular body is cut and cut by a rotatable circular blade 7 for manufacturing the paper straw.

When the paper straw is used, when it is immersed in a drink and used for sucking, the coating layer 53 can prevent the base paper layer 52 from being softened and softened, maintains hardness and shape, and does not dissolve into the drink, so that it does not affect human health.

Referring to Figures 5 and 6, a second embodiment of the novel paper straw is constructed substantially the same as the first embodiment, with the difference that the number of the tube walls 5 is different, and the paper straw of the second embodiment The tube wall 5 comprises three inner and outer stacks and is thermocompression bonded to each other. In the manufacture, as shown in Fig. 7, three elongated paper sheets 6 are spirally wound and joined by thermocompression bonding.

In summary, the novel paper straw comprises at least two inner and outer laminated wall 5 which is spirally wound and heat-sealed by using at least two of the long paper sheets 6, so that the glue is not dissolved during use. Glue or toxic substances will not affect human health, and the materials used are all environmentally friendly and can be naturally decomposed, which has the effect of safety and environmental protection, so it can achieve the purpose of this new type.

However, the above is only the embodiment of the present invention, and when it is not possible to limit the scope of the present invention, all the simple equivalent changes and modifications according to the scope of the patent application and the contents of the patent specification are still This new patent covers the scope.

1‧‧‧central axis

2‧‧‧ suction channel

3‧‧‧Smoking Department

4‧‧‧Insert Department

5‧‧‧ wall

51‧‧‧ spiral

52‧‧‧Base paper layer

53‧‧‧Layer layer

6‧‧‧Long paper

7‧‧‧ Round blade

L‧‧‧Longest length

Ψ‧‧‧管管

P‧‧‧pitch

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: Figure 1 is a perspective view of a first embodiment of the present type of paper straw; Figure 2 is a first embodiment of the present invention FIG. 3 is a cross-sectional enlarged view of the first embodiment; FIG. 4 is a schematic view showing a manufacturing process of the first embodiment; FIG. 5 is a second embodiment of the present paper straw FIG. 6 is an enlarged cross-sectional view of the second embodiment; and FIG. 7 is a schematic view showing a manufacturing process of the second embodiment.

Claims (10)

A paper suction tube defining a suction passage extending longitudinally along a central axis, the paper suction tube comprising: a suction portion and an insertion portion spaced along the central axis, the suction portion being in the shape of a flat ring The insertion portion has an oblique shape and is not parallel to the suction portion; the paper suction tube further comprises: at least two inner and outer stacking walls which are mutually thermocompression bonded, each of the tube walls being formed by a long piece of paper The central axis is spirally wound, and each of the tube walls includes a base paper layer, and at least one layer is coated with a laminating layer bonded to the side of the base paper layer, the at least two tube walls being borrowed from each other The at least one laminating layer located therebetween is heat-sealed and connected to each other. The paper straw of claim 1, wherein the edges of the elongated paper sheets of each of the tube walls are adjacent to each other and form a spiral extending spirally along the central axis, one of the tube walls. The helix of the tube wall located in the inner ring is offset from the spiral line of one of the tube walls on the outer ring. The paper straw of claim 2, wherein the material of each of the coating layers is selected from the group consisting of polylactic acid, polyethylene, or a composition thereof. The paper straw of claim 3, wherein each of the base paper layers is food grade white kraft paper. The paper straw of any one of claims 1 to 4, wherein each of the tube walls has a uniform longitudinal section thickness. The paper straw of claim 5, wherein the spiral lines of the tube walls have equal pitches and cooperate to form multi-thread threads equally spaced along the central axis, and each two adjacent spiral lines The lower interval is 1/2 pitch. The paper straw of claim 6, wherein the paper straw comprises two inner and outer stacks and the wall of the tube is thermocompression bonded to each other. The paper straw of claim 6, wherein the paper straw comprises three inner and outer stacks and the wall of the tube is thermocompression bonded to each other. The paper straw according to claim 1, wherein the paper straw has a longest length projected on the central axis of 150 to 250 mm, and the paper straw has a diameter of 4 to 15 mm. The paper straw according to claim 1, wherein the paper straw has a longest length of 170 mm projected on the central axis, and the paper straw has a diameter of 6 mm.