TWI674867B - Paper straw structure - Google Patents

Abstract

A paper straw structure includes a long paper sheet with short sides and long sides, the short side is formed with a cutting part, and the long sides have a first joint long edge and a second joint long edge, respectively, and the surface of the paper sheet is covered with The first waterproof membrane that isolates liquids; with the above structure, the curled paper sheet overlaps and overlaps the first joint long edge and the second joint long edge with each other to form an elongated cylindrical paper straw with a sharp spike; therefore, the paper of the present invention The straw structure can achieve the effects of environmental protection and sustainable development of the earth. It is an innovative structural designer with commercial applications.

Description

Paper straw structure

The invention relates to a straw, especially a paper straw structure, which can achieve the effects of environmental protection and sustainable development of the earth, and is an innovative structural designer with commercial application.

According to the progress of manufacturing technology, the food utensils that people use every day are becoming more and more environmentally friendly; straws are generally cylindrical tubes made of plastic, which can be used to suck the contents of the container, such as: viscous or liquid Substance or drink. When eating, the container or cup does not need to be placed on the mouth of the user, that is, the mouth of the user does not need to touch any part of the container or cup, only the straw needs to be inserted into the container or cup, and then the user The attractive force (that is, the inside of the mouth is negative pressure and the outside air is atmospheric pressure) can suck the substance or beverage in the container or cup into the user's mouth, which can prevent the user's lips from directly touching the container or The edge of the cup body is therefore a convenient, safe and hygienic invention.

However, the conventional straw structure made of plastic can only be discarded or incinerated after use. Plastic straws are substances that cannot be decomposed by the natural environment. When discarded directly on the road or in the ocean, not only will it cause environmental problems, but they may also cause plastic fish to be eaten by the fish in the ocean. Into too much harmful substances or plastic fragments. When plastic straws are incinerated, the dioxin-based harmful toxic gases they produce can cause serious air pollution and affect human health. Therefore, the straws made of plastic There is much room for improvement.

Therefore, in view of the problems existing in the conventional straw structure, how to develop an innovative structure with more ideal practicability, which is eagerly anticipated by consumers, is also the goal and direction for relevant industry players to strive for breakthroughs. In view of this, the inventor has been engaged in the manufacturing development and design of related products for many years. In view of the above-mentioned goals, after detailed design and careful evaluation, the present invention is indeed practical.

Technical problems to be solved: The conventional plastic straws cannot be naturally decomposed and reused, and burning plastic straws will produce toxic gases such as dioxin. Therefore, the conventional plastic straws do not meet environmental protection requirements and the sustainable development of the earth.

Technical characteristics for solving the problem: In order to improve the above problem, the present invention provides a paper straw structure, which includes: an elongated paper sheet having two short sides and two long sides, each of which has a first joint length Edge and a second joint long edge, and the surface of the paper sheet is covered with a first waterproof film that can isolate liquid; one of the short edges of the paper sheet is cut to form a cutting portion, and the cutting portion includes one of the long edges A first trimming edge adjacent to the short side, a second trimming edge connected to the first trimming edge and inclined toward the opposite of its connection point, and a second trimming edge connected to the second trimming edge and inclined toward the opposite direction of its connection point A third cutting edge, a fourth cutting edge connected to the third cutting edge and inclined toward the opposite of the connection point, the fourth cutting edge is connected to the other long edge, so that the cutting portion has an M-shaped profile ; The second cutting edge and the short edge of the paper piece, the third cutting edge and the short edge of the paper piece have the same first angle θ1; the extension line of the first cutting edge and the second cutting edge The extension of the fourth cut edge and the third cut edge The extension lines have the same second included angle θ2 respectively; when the paper sheet is curled, the first cutting edge happens to be stacked on the third cutting edge, and the fourth cutting edge happens to be stacked on the second cutting edge, so that The short side of the paper straw forms a sharp spur, wherein the second included angle θ2 is twice the angle of the first included angle θ1; with the above structure, the paper sheet is curled so that the first joining long edge and the second The bonding long edges overlap and overlap each other to form the elongated cylindrical paper straw, and the first waterproof film is adhered to the inner surface of the paper straw.

Preferably, the first included angle θ1 is an included angle of 15 to 75 degrees, and the second included angle θ2 is an included angle of 30 to 150 degrees.

Preferably, a telescopic tube portion which is bendable, extendable, and compressible is provided at a position 1/3 of the long side, which is different from the protruding portion, and the telescopic tube portion is formed by a plurality of concave ring bodies and a plurality of convex portions. The ring bodies are arranged alternately.

Preferably, a side of the paper sheet different from the first waterproof film is covered with a second waterproof film that can isolate liquid, and the second waterproof film is adhered to the outer surface of the paper straw.

Preferably, a printed layer is disposed between the second waterproof film and the paper sheet, and the printed layer includes one or a combination of graphics, colors, and logos.

With this innovative and unique design, the paper straw structure of the present invention has the following advantages:

1. Paper straws can be decomposed in the natural environment and can be recycled.

2. Burning paper straws will not produce toxic gases such as dioxin that can cause harm to the human body.

3. The burr can be inserted through the sealing layer of the container or cup to absorb the internal Drink or liquid.

4. The telescopic tube can be bent to fit the mouth direction angle and position of the user, and can comfortably suck the beverage in the container or cup.

5. The printing layer can be printed with colors as the identification mark of the straw.

6. The invention can achieve the effects of environmental protection and sustainable development of the earth.

In order to make your reviewers better understand the composition, features, and other purposes of the present invention, the following is a description of the preferred embodiments of the present invention, which will be described in detail with reference to the drawings, and will be implemented by those familiar with the technical field.

10‧‧‧paper

101‧‧‧ short side

102‧‧‧long side

11‧‧‧ the first joint long edge

12‧‧‧Second joint long edge

20‧‧‧ Spike

21‧‧‧Cutting Department

211‧‧‧first cut

212‧‧‧Second Cut Edge

213‧‧‧ Third cut

214‧‧‧ Fourth cut

30‧‧‧Telescopic tube department

31‧‧‧ concave ring body

32‧‧‧ convex ring body

60‧‧‧The first waterproof membrane

70‧‧‧print layer

80‧‧‧Second waterproof membrane

100‧‧‧ Paper straw

θ1‧‧‧First angle

θ2‧‧‧ second angle

W‧‧‧ the width of the first joint long edge, the width of the second joint long edge

FIG. 1 is a perspective assembled view of the present invention.

FIG. 2A is a schematic diagram before curling according to the present invention.

FIG. 2B is a schematic diagram after curling according to the present invention.

FIG. 3 is a perspective assembled view of another embodiment of the present invention.

FIG. 4A is a schematic diagram before curling according to another embodiment of the present invention.

FIG. 4B is a schematic view after curling according to another embodiment of the present invention.

FIG. 5 is a schematic cross-sectional view taken along the line 5-5 in FIG. 4B.

FIG. 5A is a partially enlarged view of part A of FIG. 5.

Please refer to FIG. 1 to FIG. 5A, a paper straw structure is provided, which includes: a long paper sheet 10, the paper sheet 10 is edible wood pulp paper or decomposable paper, and the thickness is 0.05 to 0.15 mm ( mm), the paper sheet 10 has two short sides 101 and two The long side 102 has two first long edges 11 and two second long edges 12, and the surface of the paper sheet 10 is covered with a first waterproof film 60 (for food grade shower) Film or edible wax); the width W of the first joining long edge 11 or the second joining long edge 12 is 1/6 to 1/3 of the short side 101 of the paper sheet 10, and the paper sheet 10 is curled to make the first The bonding long edge 11 and the second bonding long edge 12 overlap and overlap each other, and are adhered and fixed by an adhesive or a hot-melt method to form an elongated cylindrical paper straw 100, in which the first waterproof film 60 is attached to the The inner surface of the paper straw 100.

Next, please refer to FIG. 1 to FIG. 2B, which is a first embodiment of the present invention. One of the short edges 101 of the paper sheet 10 is cut to form a cutting portion 21. The cutting portion 21 includes one of the long edges. 102 a first cutting edge 211 adjacent to the short side 101, a second cutting edge 212 connected to the first cutting edge 211 and inclined toward the opposite point of its connection point, a second cutting edge 212 connecting and connecting toward the second cutting edge 212 A third cutting edge 213 inclined opposite to the point, and a fourth cutting edge 214 connected to the third cutting edge 213 and inclined toward the opposite of the connection point. The fourth cutting edge 214 is connected to the other long side. 102, to make the cutting portion 21 have an M-shaped outline; the second cutting edge 212 and the short edge 101 of the paper sheet 10, the third cutting edge 213 and the short edge 101 of the paper sheet 10 have the same first section, respectively. An included angle θ1; the extension lines of the first cut edge 211 and the second cut edge 212, and the extension lines of the fourth cut edge 214 and the third cut edge 213 have the same second included angle θ2.

As mentioned above, when the paper sheet 10 is curled, the first cutting edge 211 happens to be stacked on the third cutting edge 213, and the fourth cutting edge 214 happens to be stacked on the second cutting edge 212, so that the paper straw 100 is short. The edge 101 forms a sharp spike portion 20; however, when the first included angle θ1 is 15 degrees, the second included angle θ2 is 30 degrees; when the first included angle θ1 is 30 degrees, then The second included angle θ2 is 60 degrees; when the first included angle θ1 is 45 degrees, the second included angle θ2 is 90 degrees; when the first included angle θ1 is 60 degrees, the second included angle θ2 is 120 degrees; when The first included angle θ1 is 75 degrees, and the second included angle θ2 is 150 degrees. It can be known that the relationship between the second included angle θ2 is twice the angle of the first included angle θ1.

Furthermore, please refer to FIG. 3 to FIG. 4B, which is another embodiment of the present invention. The paper suction tube 100 is provided with a plurality of concave ring bodies 31 and a plurality of convex ring bodies 32 alternately, so that the paper suction tube 100 is adjacent to the short A flexible tube portion 30 that can be bent, extended, and compressed is formed at the side 101, and the flexible tube portion 30 may be disposed at a position different from the spur portion 20 and 1/3 of the long side 102.

In addition, please refer to FIG. 5 to FIG. 5A. A side of the paper sheet 10 different from the first waterproof film 60 is covered with a second waterproof film 80 (for food-grade coating or edible wax) that can isolate liquid. Two waterproof films 80 are attached to the outer surface of the paper straw 100, and a printing layer 70 is arranged between the second waterproof film 80 and the paper sheet 10, and the printing layer 70 includes one or a combination of graphics, colors, and logos.

Finally, please refer to FIG. 3, the paper straw 100 of the present invention has the protruding portion 20 which can pierce the beverage packaging, or the telescopic tube portion 30 which can be adapted to the direction and angle of the mouth of the user, and Comfortably suck the beverage in the container or cup; therefore, the paper straw structure of the present invention can achieve the effects of environmental protection and sustainable development of the earth, and is an innovative structural designer with commercial applications.

Based on the description of the above embodiments, the operation, use and effects of the present invention can be fully understood, but the above-mentioned embodiments are only preferred embodiments of the present invention, and the implementation of the present invention cannot be limited in this way. Scope, that is, the scope of patent application and invention description according to the present invention Simple equivalent changes and modifications made to the content are all within the scope of the present invention.

Claims (8)

A paper straw structure includes: an elongated paper sheet having two short sides and two long sides, the two long sides respectively having a first joint long edge and a second joint long edge, and the surface of the paper sheet is covered with A first waterproof film capable of isolating liquid is provided; one of the short edges of the paper sheet is cut to form a cutting portion, and the cutting portion includes a first cutting edge adjacent to the short edge by one of the long edges, and a first connecting edge connected to the first edge. A second cutting edge with all sides inclined toward the opposite of its connection point, a third cutting edge connected with the second cutting edge and inclined toward the opposite of its connection point, a third cutting edge connected with the third cutting edge and toward the A fourth cutting edge that is opposite to the connection point is inclined, and the fourth cutting edge is connected to another long side, so that the cutting portion has an M-shaped outline; the second cutting edge and the short edge of the paper sheet, the The third cut edge has the same first angle θ1 with the short edge of the paper sheet; the extension line of the first cut edge and the second cut edge, the extension line of the fourth cut edge and the third cut edge Have the same second angle θ2 respectively; when the paper sheet is curled, the first cut edge happens to be stacked on the third cut edge, the first cut edge The four cutting edges happen to be stacked on the second cutting edge, so that the short side of the paper straw forms a sharp spur; wherein the second included angle θ2 is twice the angle of the first included angle θ1; In the structure, the paper sheet is rolled so that the first joint long edge and the second joint long edge overlap each other to form an elongated cylindrical paper straw, and the first waterproof film is pasted on the inner surface of the paper straw. The paper straw structure according to item 1 of the scope of the patent application, wherein a telescopic pipe part which can be bent, extended and compressed is provided at a position 1/3 of the long side which is different from the spur part, and the telescopic pipe part is The plurality of concave ring bodies and the plurality of convex ring bodies are arranged alternately. The paper straw structure according to item 1 of the patent application scope, wherein a side of the paper sheet different from the first waterproof membrane is covered with a second waterproof membrane that can isolate liquid, and the second waterproof membrane is pasted on The outer surface of the paper straw. The paper straw structure according to item 3 of the patent application scope, wherein a printing layer is disposed between the second waterproof film and the paper sheet, and the printing layer includes one or a combination of graphics, colors, and logos. According to the paper straw structure of the first patent application scope, the first included angle θ1 is at an included angle of 15 to 75 degrees, and the second included angle θ2 is at an included angle of 30 to 150 degrees. The paper straw structure according to item 1 of the scope of patent application, wherein the width W of the first long edge and the second long edge is the same, and the width W is 1/6 to 1 of the short edge of the paper sheet. / 3. The paper straw structure according to the first patent application scope, wherein the paper sheet is edible wood pulp paper or decomposable paper. The paper straw structure according to item 1 of the patent application scope, wherein the thickness of the paper sheet is 0.05 to 0.15 millimeters (mm).