CN112277389A

CN112277389A - Paper tube manufacturing method for increasing stiffness of tube and paper tube structure thereof

Info

Publication number: CN112277389A
Application number: CN201910677209.4A
Authority: CN
Inventors: 林紫绮; 林宪仁
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2021-01-29

Abstract

The invention provides a paper tube manufacturing method for increasing stiffness of a tube body and a paper tube body structure thereof, wherein the manufacturing method comprises the following steps: providing a pulp material; forming a longitudinal-grain substrate, which is a paper substrate manufactured and provided with longitudinal grains; setting a processing axial direction of the paper tube body, wherein the processing axial direction is a set winding axial direction; setting the feeding axial direction of the paper base material, namely setting the longitudinal texture to be the same axial direction as the rolling axial direction; and feeding and rolling to form the paper tube body. By means of the paper tube body stiffness increasing device, the stiffness of the paper tube body can be increased by means of natural physical phenomena.

Description

Paper tube manufacturing method for increasing stiffness of tube and paper tube structure thereof

Technical Field

The invention relates to a method for manufacturing a paper tube with increased stiffness and a paper tube structure thereof, in particular to a method for manufacturing a paper tube with increased stiffness for absorbing food and beverage and a paper tube structure thereof.

Background

Packaged beverages are used almost every day in daily life, however, a straw is often used when the packaged beverages are drunk; in the market today, due to cost and convenience considerations, most straws are used once and then discarded.

At present, in order to meet the degradable environmental protection standard, research and development are carried out in the industry on paper straws, however, if the paper straws are contacted with beverages or moisture for a long time, softening will occur, and the stiffness of the common paper straws is not good, so that when a sealed package of a beverage cup is punctured, the paper straws are often subjected to resistance to bend and cannot puncture the sealed package.

In addition, when mass production of the paper suction pipe is performed, a large amount of paper pulp is used, which is another ecological problem, so that how to greatly reduce the amount of paper pulp and the production cost while effectively increasing the stiffness of the paper suction pipe body is an important issue at present.

Disclosure of Invention

The invention relates to a paper tube manufacturing method for increasing tube stiffness and a paper tube structure thereof, and mainly aims to solve the problems that the paper tube stiffness is insufficient and cannot be used for puncturing the covering of a beverage cup and the like.

The purpose of the invention is realized by the following technical scheme.

The invention relates to a method for manufacturing a paper tube with increased stiffness, which comprises the following steps:

providing a pulp material; forming a longitudinal texture substrate, wherein the paper substrate is made of the pulp material and has longitudinal textures; setting a processing axial direction of the paper tube body, wherein the processing axial direction is a rolling axial direction of processing equipment when the paper tube body is manufactured; setting the feeding axis of the paper substrate to be the same as the rolling axis before feeding the paper substrate; and feeding and rolling, wherein the paper base material with the set feeding axial direction is fed and rolled to form a paper tube body.

The object of the invention is further achieved by the following technical measures.

Further, after the longitudinal texture substrate is formed, the step of coating, coating or printing a waterproof film layer is further included, so that the first surface and/or the second surface of the paper substrate is/are provided with the waterproof film layer.

Further, the waterproof membrane layer is a biodegradable waterproof membrane layer.

Further, before the rolling step, the paper substrate is glued in the bonding area of the paper substrate, and then the rolling step is carried out, so that the bonding area is bonded to form a bonding part.

Further, the colloid used in the gluing step is thermosetting glue.

Further, it further comprises a laser cutting step of laser cutting the paper tube body.

Further wherein the laser cutting step comprises roll axial cutting and/or bevel cutting.

The object of the present invention can be achieved by the following other technical means.

The invention also provides a paper tube structure for increasing the stiffness of the tube, which is a paper tube and is provided with a long shaft and a plurality of transverse textures, wherein the length of the long shaft is more than several times of the length of any transverse texture, and the included angle between the long shaft and any transverse texture is 90 +/-20 degrees.

Further wherein the paper tube has a beveled sharp portion.

By implementing the invention, at least the following progressive effects can be achieved:

firstly, the stiffness of the paper tube body can be increased by utilizing natural physical phenomena.

Secondly, the paper tube body can have the capability of tearing the covering of the beverage cup.

Thirdly, the paper tube body can have a waterproof function.

And fourthly, the consumption of the pulp material is reduced.

So that those skilled in the art can readily understand the technical disclosure and practice the invention, and can readily understand the objects and advantages of the invention based on the disclosure, claims and drawings, the detailed features and advantages of the invention will be described in detail in the embodiments.

Drawings

FIG. 1A is a first embodiment of a method of making a paper tube of the present invention to increase stiffness of the tube;

FIG. 1B is a second embodiment of a method for manufacturing a paper tube with increased stiffness according to the present invention;

FIG. 2 is a diagram of an embodiment of a paper substrate having machine direction texturing in accordance with the present invention;

FIG. 3A is an exploded view of a paper substrate of the present invention further having a waterproof film layer;

FIG. 3B is a diagram of a combination embodiment of the paper substrate of the present invention further having a waterproof film layer;

FIG. 4 is a diagram of an embodiment of the present invention for setting the processing axis and the feeding axis of the paper substrate;

FIG. 5 is a diagram of a paper tube embodiment of the present invention;

FIG. 6A is a diagram of an embodiment of the present invention in which a paper tube is not rolled but only coated with glue;

FIG. 6B is a view of the rolled paper tube of FIG. 6A;

FIG. 7 is a drawing of an embodiment of laser cutting of a paper tube according to the present invention.

Reference numerals:

210: paper base 211: longitudinal grain

212: waterproof membrane layer 220-bonded area

221: colloid 310: axial direction of rolling

50: a paper tube body 510: long shaft

520: sharp portion 60: and (4) laser.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description will be made on the specific implementation, structure, features and effects of a paper tube manufacturing method for increasing stiffness of a tube body and a paper tube body structure thereof according to the present invention with reference to the accompanying drawings and preferred embodiments.

The following will describe in detail a method for manufacturing a paper tube with increased stiffness and a paper tube structure thereof according to an embodiment of the present invention with reference to the accompanying drawings.

As shown in fig. 1A and 1B, the present embodiment is a method S100 for manufacturing a paper tube with increased stiffness, which includes: providing a pulped material S10; forming a longitudinal textured substrate S20; setting a paper tube body processing axial direction S30; setting the feeding axial direction S40 of the paper base material; and feeding and rolling S50.

A pulped material S10 is provided, which is any material that can be pulped.

As shown in fig. 2, a longitudinal texture substrate S20 is formed, wherein the paper substrate 210 is made of the pulp material, and the paper substrate 210 is made of, for example, a paperboard, and the texture of the paperboard has a plurality of parallel longitudinal textures 211, and the longitudinal textures 211 are MD (machine Direction).

As shown in fig. 3A and 3B, some paper tube 50 requiring waterproof function according to different requirements of the paper tube 50, after forming the longitudinal texture substrate S20, a step S25 of preparing a waterproof film layer is further included, which is a step of coating, spreading, or printing the waterproof film layer 212, so that the first surface and/or the second surface of the paper substrate 210 has the waterproof film layer 212. And waterproof membrane layer 212 may be a biodegradable waterproof membrane layer.

As shown in fig. 4, since the paper tube body 50 is manufactured by rolling, the paper tube body processing axial direction S30 is set, and the paper tube body processing axial direction S30 is set before manufacturing, and the processing device is set, and the rolling axial direction 310 of the rolled paper sheet is set when the paper tube body 50 is manufactured.

The feeding axis direction S40 of the paper substrate is set such that the longitudinal grain 211 of the paper substrate 210 to be processed is set to be the same as the winding axis direction 310 of the processing apparatus before the paper substrate 210 is fed.

As shown in fig. 5, feeding and rolling S50 is performed, in which the paper base material 210 with the feeding axis set is fed and rolled S50 to form the paper tube 50.

Because the manufactured paper tube 50 has the long axis 510 and the plurality of longitudinal textures 211, and the included angle θ 1 between the long axis 510 and any longitudinal texture 211 can be 90 ± 20 degrees, the paper tube 50 can naturally achieve the effect of increasing stiffness by utilizing physical phenomena.

As shown in fig. 6A and 6B, in order to stabilize the structure of the paper tube 50, before the rolling step of the paper substrate 210, the adhesive coating step S45 may be performed on the bonding area 220 of the paper substrate 210, and then the rolling step is performed to complete the stable bonding of the bonding area 220, at this time, the paper tube 50 will also be formed with a bonding portion. The glue 221 used in the glue step S45 may be a heat-curable glue, in addition to a general adhesive.

As shown in fig. 7, the rolled paper tube 50 is a paper tube 50 having a relatively continuous length, and thus the above manufacturing step may further include a laser cutting step S55 of cutting the paper tube 50 with a laser 60 to make the paper tube 50 a length equal to that of a general straw.

In order to make the straw have the sharp part 520 with an oblique angle so as to more conveniently puncture the covering of the cup mouth of the beverage cup when in use, the laser cutting step S55 may further include rolling axial cutting and/or oblique angle cutting.

While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

Claims

1. A method for manufacturing a paper tube with increased stiffness of the tube, comprising:

providing a pulp material;

forming a longitudinal texture substrate, wherein the paper substrate is made of the pulp material and has longitudinal textures;

setting a processing axial direction of the paper tube body, wherein the processing axial direction is a rolling axial direction of processing equipment when the paper tube body is manufactured;

setting the feeding axial direction of the paper base material, wherein the longitudinal texture is set to be in the same axial direction as the rolling axial direction before the paper base material is fed; and

and feeding and rolling, namely feeding and rolling the paper base material with the set feeding axial direction to form a paper tube body.

2. The method of claim 1, further comprising coating, or printing a waterproof film layer on the first surface and/or the second surface of the paper substrate after the longitudinal texture substrate is formed.

3. The method of manufacturing a paper tube for increasing stiffness of the tube according to claim 2, wherein the waterproofing membrane is a biodegradable waterproofing membrane.

4. The method of claim 1, wherein the step of rolling is performed after the step of applying glue to the bonding area of the paper substrate before the step of rolling, so that the bonding area is bonded to form the bonding portion.

5. The method of manufacturing a paper tube for increasing stiffness of the tube according to claim 4, wherein the glue applied in the glue applying step is a thermosetting glue.

6. The method for manufacturing a paper tube with increased stiffness as claimed in claim 1, further comprising a laser cutting step of laser-cutting the paper tube.

7. The method of claim 6, wherein the laser cutting step comprises a roll axial cut and/or a bevel cut.

8. A paper tube structure for increasing stiffness of a tube body is characterized in that the paper tube body is provided with a long shaft and a plurality of transverse textures, the length of the long shaft is more than several times of the length of any transverse texture, and an included angle between the long shaft and any transverse texture is 90 +/-20 degrees.

9. A paper tube structure for increasing stiffness of the tube according to claim 8, wherein the paper tube has a beveled sharp portion.