CN214453475U

CN214453475U - Environment-friendly paper straw

Info

Publication number: CN214453475U
Application number: CN202023025035.0U
Authority: CN
Inventors: 丁椒平; 丁宇凡
Original assignee: Kraftpack Hubei Industrial Co ltd
Current assignee: Kraftpack Hubei Industrial Co ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-10-22
Anticipated expiration: 2030-12-15

Abstract

The utility model provides an environmental protection paper straw belongs to straw technical field. It has solved the relatively poor problem of current environmental protection paper straw waterproof ability. This environmental protection paper straw, including the tubulose body of cavity, the body includes the outer layer body of inlayer body and cladding in the outer lateral wall of inlayer body and with the inlayer body adhesion, the inlayer body all adopts paper tape spiral winding to form with the outer layer body, and the pitch of the paper tape of the axial width of the paper tape edge body of coiling formation inlayer body is less than or equal to the inlayer body. The utility model discloses simple structure, design benefit, the body inner wall is more smooth and level, avoids water liquid to infiltrate in the paper tape from the side end face of paper tape, and water-proof effects is better, and body overall structure is more firm, and structural strength is higher.

Description

Environment-friendly paper straw

Technical Field

The utility model belongs to the technical field of the straw, a environmental protection paper straw is related to.

Background

At present, the consumption of straws is as much as billions every year worldwide, and at present, straws are mainly made of plastic, which causes enormous pressure on the environment. Therefore, it is a future trend to use degradable environment-friendly materials such as paper to manufacture the straw.

The prior paper suction pipe mostly adopts strip-shaped paper simply, and the paper is bent at two sides and is adhered by glue to form a circular-tube-shaped suction pipe. The straw made by the method has lower structural strength, the bonding part of the straw is easy to break, the sealing performance is poorer, and liquid leakage is easy. In order to solve the above problems, the chinese patent application (application No. 201821402003.8) discloses an environment-friendly disposable straw, comprising an inner layer paper sheet, an outer layer paper sheet and a middle layer paper sheet, wherein the upper and lower surfaces of the middle layer paper sheet are respectively bonded with adhesive films and are respectively bonded with the inner layer paper sheet and the outer layer paper sheet, and the inner layer paper sheet, the middle layer paper sheet and the outer layer paper sheet are overlapped and then wound into a tubular structure from bottom to top along the central line of the middle layer paper sheet. However, since the inner paper sheets are usually partially overlapped after being wound, and the side surfaces of part of the inner paper sheets are exposed to the inner side of the straw, although the inner paper sheets are provided with the waterproof layer, water or beverage liquid is still easy to enter the inner paper sheets from the end surfaces of the inner paper sheets when the straw is used, so that the structure of the straw is softened and damaged.

Disclosure of Invention

The utility model aims at solving the problems in the prior art, and provides an environment-friendly paper straw, which aims to solve the technical problems that: how to improve the waterproof effect of the straw.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides an environmental protection paper straw, includes the tubulose body of cavity, its characterized in that, the body includes the outer somatic body of inlayer body and cladding in the outer lateral wall of inlayer body and with the adhesion of inlayer body, inlayer body and outer somatic body all adopt paper tape spiral winding to form, and the pitch of the paper tape of the interior somatic body of winding formation along the axial width of body is less than or equal to the paper tape of inlayer body.

The inner layer body and the outer layer body of the environment-friendly paper suction pipe are made of degradable paper materials, the inner layer body and the outer layer body are molded through paper tape spiral winding and shaped through mutual adhesion, the stress in the circumferential direction of the pipe body is more uniform, the structural stability is better, and the cross section of the pipe body is more circular. Meanwhile, the width of the paper tape of the inner layer body along the axial direction of the pipe body is smaller than or equal to the thread pitch of the paper tape of the inner layer body, the adjacent spirals of the paper tape are prevented from being stacked, the inner wall of the inner layer body is smoother and more comfortable, water or liquid is not easy to contact with the side face of the paper tape when passing through the suction pipe, and the side end face of the paper tape is prevented from seeping into the paper tape, so that the waterproof effect of the inner layer body is improved, and the suction pipe can still ensure the structural strength within a long service time.

In the environment-friendly paper straw, one side of the paper tape of the inner layer body, which is attached to the outer layer body, or/and one side of the paper tape of the outer layer body, which is attached to the inner layer body, are/is provided with the bonding layer, and the paper tape of the inner layer body and the paper tape of the outer layer body are bonded through ultrasonic welding or heat sealing. The adhesive layer can be melted under the action of ultrasonic waves or during heating, and the inner layer body and the outer layer body are adhered, so that the use of glue is avoided, and the adhesive is more environment-friendly and sanitary.

In the environment-friendly paper straw, a gap is formed between adjacent spirals of the paper tape of the inner layer body, and the hot-melted bonding layer partially penetrates into the gap. Like this, the plastic that gets into the clearance can fill up the clearance and carry out the adhesion with adjacent spiral, improves the structural strength of inner member body, but also can avoid water liquid to get into the clearance, further improves water-proof effects.

In the environment-friendly paper straw, the winding direction of the paper tape of the inner layer body is the same as that of the paper tape of the outer layer body, and the paper tape of the outer layer body covers the gaps of the paper tape of the inner layer body. Therefore, the matching precision of the paper tape gaps of the inner body can be further ensured, and the leakage at the gaps is avoided.

In the environment-friendly paper straw, the winding direction of the paper tape of the inner layer body is opposite to the winding direction of the paper tape of the outer layer body. The paper tapes on the inner layer and the outer layer are wound in the reverse direction, so that an interweaving effect can be formed, and the integral structural strength is further improved.

In the environment-friendly paper straw, the width of the paper tape wound to form the outer layer body along the axial direction of the straw body is less than or equal to the thread pitch of the paper tape of the outer layer body. Therefore, the smoothness of the outer peripheral surface of the pipe body can be ensured, and the hand feeling is better when a user grips the pipe body.

In foretell environmental protection paper straw, the paper tape of inlayer body forms one side of body inner wall and has the waterproof layer, and the paper tape of outer layer body forms one side of body outer wall and also has the waterproof layer, avoids water liquid to permeate the paper tape from the inner wall of inlayer body, improves water-proof effects.

In the environment-friendly paper straw, the waterproof layers are arranged on the end faces of the two ports of the straw body, so that water liquid is prevented from permeating into the paper tapes from the two ports of the straw body.

In the environment-friendly paper straw, the waterproof layer is a film coating layer made of PLA or PBS material or a coating layer made of waterproof degradable material. The waterproof degradable material is methacrylic acid modified olefin dispersoid.

Compared with the prior art, the utility model has the advantages of it is following:

1. the utility model discloses a take up to be bilayer structure with the paper tape, the body atress is even, and the structure is firm, and more sanitary environmental protection.

2. The paper tape that winds into the inner layer body is not stacked in each spiral, so that the inner wall of the inner layer body is smoother and smoother, the side end face of the paper tape is prevented from protruding outside, the fused bonding layer partially permeates gaps among the paper tape spirals and can seal the side end face of the paper tape, water liquid is prevented from permeating the paper tape from the side end face of the paper tape, the waterproof effect is better, and adjacent spirals are bonded through the fused bonding layer, so that the integral structure of the pipe body is more stable, and the structural strength is higher.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a radial cross-sectional view of the present invention;

fig. 3 is a cross-sectional view of the present invention in the axial direction.

In the figure, 1, a tube body; 2. an inner layer body; 3. an outer layer body; 4. a bonding layer; 5. a waterproof layer; 6. a helix.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1 and 2, an environment-friendly paper straw comprises a hollow tubular straw body 1, wherein the straw body 1 comprises an inner layer body 2 and an outer layer body 3, the inner layer body 2 and the outer layer body 3 are formed by spirally winding paper tapes, and the paper tapes of the outer layer body 3 are wound on the outer peripheral surface of the tubular inner layer body 2 and are adhered to the inner layer body 2.

Specifically, as shown in fig. 2 and 3, in this embodiment, the paper tapes forming the inner layer body 2 and the outer layer body 3 are made of degradable materials, the adhesive layer 4 is disposed between the inner layer body 2 and the outer layer body 3, the adhesive layer is made of degradable materials, and the paper tape of the inner layer body 2 and the paper tape of the outer layer body 3 are bonded by the melted adhesive layer 4 through ultrasonic welding or heat sealing. The adhesive layer 4 may be directly pre-disposed on the paper tape of the inner layer 2 to be attached to the outer layer 3 or the paper tape of the outer layer 3 to be attached to the inner layer 2, or may be disposed on both the paper tape of the inner layer 2 and the paper tape of the outer layer 3.

As shown in fig. 3, the width L of the paper tape wound to form the inner layer 2 along the axial direction of the tube 1 is less than or equal to the pitch D of the paper tape of the inner layer 2, so as to avoid the overlapping between the adjacent spirals 6 of the paper tape of the inner layer 2, make the inner wall of the tube 1 smoother, and avoid the side end surface of the paper tape of the inner layer 2 from protruding outside, thereby reducing or avoiding the contact with the water flowing through the tube 1, and improving the waterproof effect of the paper tape.

Further, in this embodiment, the width L of the paper tape wound to form the inner layer 2 along the axial direction of the pipe body 1 is smaller than the pitch D of the paper tape of the inner layer 2, that is, a gap is formed between adjacent spirals 6 of the paper tape of the inner layer 2, so that when the paper tape of the outer layer body 3 is bonded to the paper tape of the inner layer body 2, the hot-melted adhesive layer 4 partially permeates into the gap, the gap is filled, the adjacent spirals 6 of the paper tape of the inner layer body 2 are bonded, the overall structural strength of the inner layer body 2 is improved, and the adhesive layer 4 entering the gap seals the side end face of the paper tape, so as to further improve the waterproof effect.

Further, in this embodiment, the inner layer 2 and the outer layer 3 are both formed by spirally winding a paper tape, and meanwhile, the paper tape winding direction and the helix angle of the inner layer 2 are the same as those of the outer layer 3, and the paper tape of the outer layer 3 and the paper tape of the inner layer 2 are staggered, so that the paper tape of the outer layer 3 covers the gaps between the paper tapes of the inner layer 2. Of course, the inner layer body 2 and the outer layer body 3 can also be formed by winding two or more than two paper tapes which are arranged in parallel in the actual production process.

Furthermore, the width of the paper tape wound to form the outer layer body 3 along the axial direction of the pipe body 1 is also smaller than or equal to the thread pitch of the paper tape of the outer layer body 3, so that the outer peripheral surface of the outer layer body 3 is smoother and smoother, and the holding hand feeling is improved.

Furthermore, one side of the inner wall of the pipe body 1 formed by the paper tape of the inner layer body 2 is provided with a waterproof layer 5, and the waterproof layer 5 is a coating layer made of degradable modified materials such as PLA or PBS or a coating made of methacrylic acid modified olefin dispersoid. The side of the outer layer body 3, which forms the outer wall of the tube body 1, is also provided with a waterproof layer 5, and the end faces of the two ports of the tube body 1 are also provided with the waterproof layers 5, so as to prevent water from permeating into the paper tape from the inner wall of the tube body 1 and the two ends of the tube body 1.

Example two

The technical scheme of the embodiment is basically the same as that of the first embodiment, but the difference is that in the embodiment, the winding direction of the paper tape of the outer layer body 3 is opposite to that of the paper tape of the inner layer body 2, so that the paper tape of the inner layer body 2 and the paper tape of the outer layer body 3 are interwoven, the structural strength of the pipe body 1 is improved, the stress on the pipe body 1 is more uniform, and the cross section of the pipe body 1 is more circular.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms tubular body 1, inner body 2, outer body 3, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides an environmental protection paper straw, includes hollow tubulose body (1), its characterized in that, body (1) include inner body (2) and cladding in inner body (2) lateral wall and with outer layer body (3) of inner body (2) adhesion, inner body (2) and outer layer body (3) all adopt paper tape spiral winding to form, and the pitch of the paper tape of the axial width of body (1) along the inner body (2) of coiling formation inner body (2) is less than or equal to inner body (2).

2. The environment-friendly paper straw as claimed in claim 1, wherein an adhesive layer (4) is arranged on one side of the inner layer body (2) attached to the outer layer body (3) or/and one side of the outer layer body (3) attached to the inner layer body (2), and the inner layer body (2) and the outer layer body (3) are bonded through ultrasonic welding or heat sealing by the paper tape of the inner layer body (2) and the paper tape of the outer layer body (3).

3. The environmentally friendly paper drinking straw as claimed in claim 2, wherein the adjacent spirals (6) of the paper tape of the inner layer (2) have a gap therebetween, and the hot-melted adhesive layer (4) partially penetrates into the gap.

4. The environment-friendly paper straw as claimed in claim 1, 2 or 3, wherein the paper tape winding direction of the inner layer body (2) is the same as that of the outer layer body (3), and the paper tape of the outer layer body (3) covers the gaps of the paper tape of the inner layer body (2).

5. The environment-friendly paper straw as claimed in claim 1, 2 or 3, wherein the paper tape of the inner layer body (2) is wound in a direction opposite to the winding direction of the paper tape of the outer layer body (3).

6. The environment-friendly paper drinking straw as claimed in claim 5, wherein the width of the paper tape wound to form the outer layer body (3) along the axial direction of the straw body (1) is less than or equal to the pitch of the paper tape of the outer layer body (3).

7. The environment-friendly paper straw as claimed in claim 1, 2 or 3, wherein the side of the paper tape of the inner layer body (2) forming the inner wall of the straw body (1) is provided with a waterproof layer (5), and the side of the paper tape of the outer layer body (3) forming the outer wall of the straw body (1) is also provided with a waterproof layer (5).

8. The environment-friendly paper straw as claimed in claim 7, wherein the end surfaces of the two ends of the tube body (1) are provided with waterproof layers (5).

9. The environment-friendly paper straw as claimed in claim 8, wherein the waterproof layer (5) is a film coating layer made of PLA or PBS material or a coating layer made of waterproof material.