TW202000438A - Three-layer composite material paper straw and manufacturing method thereof for environmental protection, being completely recycled and regenerated, and easy production - Google Patents

Abstract

The present invention discloses a three-layer composite material paper straw and a manufacturing method thereof. The three-layer composite paper straw is made of three-layer composite paper material composed of three layers of paper material in a spiral winding manner. The three-layer composite paper material comprises a first-layer paper, a second-layer paper, and a third-layer paper. The first and third layers of paper are stone paper, and the second layer of paper is a long-fiber wood pulp paper. The long sides of the first-layer paper, second-layer paper, and third-layer paper are stacked on top of each other in an imbricating manner and are adhered with each other by the portions having a half of short side width. The three layers of composite paper materials are adhered in a spiral winding and staggered overlapping manner to compose a three-layer composite material paper straw with three layers of straw walls, wherein the first-layer paper becomes the outermost layer, the second-layer paper becomes the middle layer of the three-layer composite material paper straw, and the third-layer paper becomes the innermost layer of the three-layer composite material paper straw. The three-layer composite paper straw of the present invention has the advantages of environmental protection, being completely recycled and regenerated, excellent structural strength, and easy production.

Description

Three-layer composite material paper straw and manufacturing method thereof

The invention relates to a straw structure and a manufacturing method thereof, in particular to a three-layer composite paper straw and a manufacturing method thereof.

Due to the differences in food culture, the food utensils of different countries or ethnic groups will also be different, but one of the eating utensils, straws, is a common utensil used for smoking drinks regardless of the country and food culture.

Due to the improvement of material living standards in modern society, whether it is packaged beverages or on-site beverages are extremely popular, so the number of straws consumed by the global population daily is very alarming. At present, most of the straws used are still mainly made of plastic straws. Although the size of each plastic straw is not large, the cumulative number of daily use is not comparable to other plastic tableware. The volume is not large, and it is not easy to dispose even after recycling. Therefore, a huge amount of straw waste is generated every day in the world. This large amount of plastic waste will not only cause harm to the environment, but also increase a lot of processing costs.

In order to solve the problem of traditional plastic straws, there is a reusable straw in the market. The typical one is a straw made of stainless steel. Although this stainless steel straw has the advantage of being reusable, it needs to be carried with you. It is still limited and the penetration rate is very low. In a short period of time, it still cannot completely replace the traditional plastic straws and solve the environmental problems caused by plastic straws. In addition, the stainless steel straws need to undergo a disinfection process to be reused. The pore size is small, easy to stain and difficult to clean and disinfect, and the sanitary conditions are still poor.

The technical problem to be solved by the present invention is to provide an environmentally friendly, fully recoverable, and easy-to-produce three-layer composite paper straw and its manufacturing method.

In order to solve the above technical problems, an embodiment of the three-layer composite paper straw of the present invention is basically made of three-layer composite paper composed of three-layer paper materials in a manner of spiral winding and misalignment overlapping. The three-layer composite paper includes: the first layer paper, the second layer paper and the third layer paper; wherein the first layer paper, the second layer paper and the third layer paper are elongated paper materials of the same width, the first The layer paper and the third layer paper are stone paper, the second layer paper is wood pulp paper, and the long sides of the first layer paper, the second layer paper and the third layer paper are stacked on top of each other in a tiled manner, and occupy 1/ 2 The parts of the short side width are glued to each other, and the three-layer composite paper is adhered to each other in a spirally wound and misaligned overlapping manner to form a three-layer composite paper straw with three-layer tube walls, in which the first layer of paper becomes The outermost layer of the three-layer composite paper straw, the second layer of paper becomes the middle layer of the three-layer composite paper straw, and the third layer of paper becomes the inner layer of the three-layer composite paper straw.

Among them, the preferred embodiment of the wood pulp paper used for the first layer of paper is long-fiber wood pulp paper; this three-layer composite paper straw made by spiral winding and misaligned overlapping has a three-layer tube wall without The gap will not leak, and the long-fiber wood pulp paper as the middle layer can provide sufficient structural strength support, can maintain stiffness, increase the convenience of use and not easy to deform and other advantages.

The long sides of the first layer of paper, the second layer of paper, and the third layer of paper are stacked on top of each other in a tiled manner. The second surface of the first layer of paper occupies the second half of the first layer of paper. Paste on the first half of the second layer of paper that occupies the first half of the short side width of the second layer of paper, and the second surface of the second layer of paper occupies the second half of the second layer of short side width Pasted on the first surface of the third layer of paper accounts for the first half of the short side width of the third layer of paper; the three-layer composite paper is bonded into a tubular three-layer composite material by spiral winding and dislocation overlap The paper straw is the winding part starting from the end of the first turn of the three-layer composite paper and thereafter, the second surface of the first layer of paper accounts for the first half of the short side width of the first layer of paper The segment is pasted on the second half of the second layer of paper, the first surface of which accounts for 1/2 of the short side width of the second layer of paper, and the second surface of the second layer of paper accounts for the first half of the second layer of short side width of 1/2. The segment is pasted on the first half of the third layer of paper that occupies the second half of the third layer of paper.

An embodiment of the method for manufacturing a three-layer composite paper straw of the present invention includes the following steps: A. Prepare three long-width paper materials of the same width, which are a first layer paper, a second layer paper, and a third layer paper respectively , Where the first layer of paper and the third layer of paper are stone paper, and the second layer of paper is wood pulp paper; B. The long sides of the first, second, and third layers of paper are stacked on top of each other in a tiled manner , And the parts that occupy 1/2 the width of the short side are bonded to each other to form a three-layer composite paper; and C. The three-layer composite paper is wound in a spiral winding manner, and the paper is misaligned and overlapped. The first layer of paper, the second layer of paper and the third layer of paper are adhered to each other to form a three-layer composite paper straw with three layers of tube walls, wherein the first layer of paper becomes the outermost layer of the three-layer composite paper straw, the second layer The paper becomes the middle layer of the three-layer composite paper straw, and the third layer of paper becomes the inner layer of the three-layer composite paper straw.

An embodiment of a method for manufacturing a three-layer composite paper straw of the present invention includes using any one of viscose, hot-melt compression bonding, and ultrasonic welding to bond the first layer paper, the second layer paper, and the third layer paper The contact surfaces are glued together.

The beneficial effect of the three-layer composite paper straw of the present invention is that it has the advantages of environmental protection, full recovery and regeneration, and easy production; on the other hand, this three-layer composite paper straw is made by spiral winding and dislocation overlap The three-layer pipe wall has no gaps and will not leak. The long-fiber wood pulp paper as the middle layer can provide sufficient structural strength support, which can maintain stiffness, increase the convenience of use and not easy to deform.

10‧‧‧ First layer paper

10A‧‧‧The first surface of the first layer of paper

10B‧‧‧The second surface of the first layer of paper

20‧‧‧Second layer paper

20A‧‧‧The first surface of the second paper

20B‧‧‧The second surface of the second paper

30‧‧‧ third layer paper

30A‧‧‧The first surface of the third layer paper

30B‧‧‧Second surface of the third layer of paper

40‧‧‧Glue unit

50‧‧‧winding device

L‧‧‧Long side

P‧‧‧Three-layer composite paper

W‧‧‧short side width

S1‧‧‧The second surface of the first layer of paper occupies the first half of the short side width of the first layer of paper. The first surface of the second layer of paper occupies the short side of the second layer of paper. Second half

S2‧‧‧The second surface of the second layer of paper occupies the first half of the short side width of the second layer of paper. The first surface of the third layer of paper occupies the short side of the third layer of paper. Second half

FIG. 1 is an external structure diagram of an embodiment of a three-layer composite paper straw of the present invention.

FIGS. 2A to 2D are schematic diagrams of a manufacturing process of an embodiment of a three-layer composite paper material.

FIG. 3 is a schematic structural view of an embodiment of a three-layer composite paper material.

Figure 4 is a schematic view of the structure of a three-layer composite paper material made into a three-layer composite paper straw by spiral winding and dislocation overlap.

Fig. 5 is a structural cross-sectional view of a longitudinal section of an embodiment of a three-layer composite paper straw of the present invention.

FIG. 6 is a step diagram of an embodiment of a method for manufacturing a three-layer composite paper straw of the present invention.

FIG. 7 is a schematic diagram of an equipment architecture of an embodiment of a method for manufacturing a three-layer composite paper straw of the present invention.

FIG. 8 is a schematic diagram of a continuous manufacturing method of the three-layer composite paper straw of the present invention.

First, please refer to FIG. 1 which is an external structural view of an embodiment of a three-layer composite paper straw of the present invention.

The three-layer composite paper straw of the present invention is basically a three-layer composite paper P composed of three-layer paper materials, which is spirally wound and misaligned and overlapped. The three-layer composite paper P includes: A layer of paper 10, a second layer of paper 20 and a third layer of paper 30, of which the first layer of paper 10, the second layer of paper 20 and the third layer of paper 30 are elongated paper materials of the same width, the first layer of paper 10 And the third layer paper 30 is stone paper, the second layer paper 20 is wood pulp paper, preferably long fiber wood pulp paper is used as the second layer paper 20, the first layer paper 10, the second layer paper 20 and the first The long sides L of the three-layer paper 30 are stacked on top of each other in a shingled manner (see FIG. 3), and are glued to each other with a portion of 1/2 the width W of the short side. In order to enable a continuous winding production method, The lengths of the first layer paper 10, the second layer paper 20, and the third layer paper 30 are not limited. The preferred embodiment is to use a paper strip wound as a material source; the three-layer composite paper P is spirally wound It is wound in a winding manner, and the first layer of paper 10, the second layer of paper 20 and the third layer of paper 30 are adhered to each other using a glue to form a three-layer composite paper straw with three-layer tube walls. (See Figure 5), where the first layer of paper 10 becomes the outermost layer of the three-layer composite paper straw, the second layer of paper 20 becomes the middle layer of the three-layer composite paper straw, and the third layer of paper 30 becomes the three-layer composite material The inner layer of a paper straw.

The first layer of paper 10, the second layer of paper 20, and the third layer of paper 30 all have opposing first and second surfaces (for ease of explanation, the symbol of each layer of paper is followed by the letter A for the first surface, and the letter B Represents the second surface, for example: 10A represents the first surface of the first layer of paper 10, 20B represents the second surface of the second layer of paper 20, and so on), using a three-layer composite paper P to make a tubular three-layer After the composite paper straw, the first surface is facing the outer side of the three-layer composite paper straw, and the second surface is facing the inner side of the three-layer composite paper straw.

Please refer to FIG. 6 which is a step diagram of an embodiment of a method for manufacturing a three-layer composite paper straw of the present invention, including: A. Preparation of three strip-shaped paper materials of the same width, which are the first layer of paper 10, the first Two-layer paper 20 and third-layer paper 30, of which the first layer paper 10 and the third layer paper 30 are stone paper, and the second layer paper 20 is wood pulp paper; B. The first layer paper 10, the second layer paper 20 And the long side L of the third layer of paper 30 is stacked on top of each other in a shingled manner, and is bonded to each other with a portion of 1/2 the short side width W to form a three-layer composite paper P; and C. spirally wound The three-layer composite paper P is wound in a winding manner, and the first layer paper 10, the second layer paper 20 and the third layer paper 30 are adhered to each other in a staggered overlapping manner to form a three-layer composite with three-layer pipe walls Paper straws, where the first layer of paper 10 becomes the outermost layer of the three-layer composite paper straw, the second layer of paper 20 becomes the middle layer of the three-layer composite paper straw, and the third layer of paper 30 becomes the three-layer composite paper straw Inner layer.

Please refer to FIGS. 2A to 2D, where the long sides L of the first layer paper 10, the second layer paper 20, and the third layer paper 30 are stacked on top of each other in a tiled manner is the second of the first layer paper 10 The surface 10B occupies the second half of the short-side width W of the first layer of paper 10 and sticks to the first surface 20A of the second-layer paper 20 accounts for the first half of the short-side width W of the second layer of paper 20. The second surface 20B of the second layer paper 20 occupies the second half of the second layer paper 20, and the second half of the width W sticks to the first surface 30A of the third layer paper 30, which occupies the 1/2 short side of the third layer paper 30. The first half of the width W.

An embodiment of a method for manufacturing a three-layer composite paper straw of the present invention includes using any one of viscose, hot-melt pressure bonding, and ultrasonic welding to combine the first layer paper 10, the second layer paper 20, and the third The contact surfaces of the layer papers 30 are stuck together. Because the composition of stone paper is basically made of a combination of 80% stone powder (calcium carbonate CaCO3) and 20% environmentally friendly high-density polyethylene (HDPE), the polyethylene (PE) contained in it can also be ultrasonically welded or It is the method of heat welding that makes the first layer of paper 10, the second layer of paper 20 and the third layer of paper 30 stick together at the contact surface with each other.

Please refer to Fig. 4, in which the three-layer composite paper P is wound into a tubular three-layer composite paper straw by spiral winding and dislocation overlap, which is the first turn wound from the three-layer composite paper P At the beginning and after the end of the winding part, the first half of the second surface 10B of the first layer of paper 10 occupies 1/2 of the short side width W of the first layer of paper 10 is adhered to the first surface 20A of the second layer of paper 20 The second half of the second layer of paper accounts for the second half of the width W (indicated by the symbol S1 in the figure), the second surface 20B of the second layer of paper 20 occupies the second layer of paper 20 of the short side width W The first half of the paper is pasted on the first surface 30A of the third layer of paper 30, which occupies the second half of the short side width W of the third layer of paper 30. This is a three-layer composite paper straw that is wound into a tubular shape by spiral winding and misalignment. The first layer of paper 10 becomes the outermost layer of the three-layer composite paper straw, and the second layer of paper 20 becomes a three-layer composite. The middle layer of paper straws, the third layer of paper 30 becomes the inner layer of the three-layer composite paper straws (see Figure 5).

Please refer to FIG. 7 which is a schematic diagram of an equipment architecture of an embodiment of a method for manufacturing a three-layer composite paper straw of the present invention. According to the illustrated embodiment, the first layer paper 10, the second layer paper 20, and the third layer paper 30 having the same short side width W are wound into rolls as paper materials for manufacturing a three-layer composite paper straw Source, the first layer of paper 10, the second layer of paper 20 and the third layer of paper 30 are coated on the contact surface of the first layer of paper 10, the second layer of paper 20 and the third layer of paper 30 by a glue unit 40 Distribute food-grade viscose, then guide the first layer of paper 10, the second layer of paper 20, and the third layer of paper 30 to the winding device 50, and use the adhesive to separate the first layer of paper 10, the second layer of paper 20 It is bonded to the third layer of paper 30 to form a three-layer composite paper P. Finally, a three-layer composite paper straw with three-layer tube walls is continuously produced by spiral winding and dislocation overlap.

Please refer to FIG. 8, the three-layer composite paper straw of the present invention uses three-layer composite paper P composed of three-layer paper materials to adhere to each other in a spirally wound and misaligned overlapping manner, which can continuously produce a tubular structure, and then If the length of the straw is cut off, the three-layer composite paper straw can be produced continuously and in large quantities. Among the three-layer composite paper straws that are initially completed during the winding process, the pipe wall structure should not have a three-layer structure. Cut off and discard.

Although the present invention has been disclosed as above through the above embodiments, it is not intended to limit the present invention. Those skilled in the art can make some modifications and retouching without departing from the spirit and scope of the present invention. The scope of patent protection shall be subject to those defined in the claims of this application.

10‧‧‧ First layer paper

10A‧‧‧The first surface of the first layer of paper

10B‧‧‧The second surface of the first layer of paper

20‧‧‧Second layer paper

20B‧‧‧The second surface of the second paper

30B‧‧‧Second surface of the third layer of paper

P‧‧‧Three-layer composite paper

Claims (8)

A three-layer composite paper straw is made of three-layer composite paper composed of three-layer paper materials in a manner of spiral winding and dislocation overlap. The three-layer composite paper includes: first layer paper and second layer Paper and a third layer of paper; the first layer of paper, the second layer of paper and the third layer of paper are elongated paper materials of the same width, the first layer of paper and the third layer of paper are stone paper, the The second layer of paper is wood pulp paper. The long sides of the first layer of paper, the second layer of paper and the third layer of paper are stacked on top of each other in a shingled manner, and each other takes up half of the width of the short side Bonded together, the three-layer composite paper is bonded to each other in a spirally wound and misaligned overlapping manner to form the three-layer composite paper straw with three layers of pipe walls, and the first layer of paper becomes the three-layer composite paper straw The outermost layer of the second layer of paper becomes the middle layer of the three-layer composite paper straw, and the third layer of paper becomes the inner layer of the three-layer composite paper straw. The three-layer composite paper straw according to claim 1, characterized in that the first layer of paper, the second layer of paper and the third layer of paper are made of adhesive, hot-melt pressure bonding and ultrasonic welding Either way, the contact surfaces are glued together. The three-layer composite paper straw according to claim 1, wherein the second layer of paper is long-fiber wood pulp paper. The three-layer composite paper straw according to claim 1, characterized in that: the long sides of the first layer of paper, the second layer of paper and the third layer of paper are stacked on top of each other in a tiled manner is the first The second surface of the layer paper occupies the second half of the first layer of paper, and the second half of the width of the first layer of paper adheres to the second layer of paper, the first surface occupies the first half of the second layer of paper. The second surface of the second layer of paper occupies the second half of the second layer of paper, the second half of the width of the second half of the third layer of paper is attached to the first surface of the third layer of paper The first half of the edge width; where the three-layer composite paper is bonded into a tube by spiral winding and dislocation overlap, the three-layer composite paper straw is the first winding from the three-layer composite paper At the beginning and after the end of the winding part, the second surface of the first layer of paper occupies the first half of the short side width of the first layer of paper is pasted to the first surface of the second layer of paper The second half of the second half of the second half of the width of the second side of the paper, the second surface of the second layer of paper accounted for the first half of the second half of the second side of the width of the second layer of paper pasted to the third layer of paper The first surface occupies the second half of the short side width of the third layer of paper. A method for manufacturing a three-layer composite paper straw includes the following steps: A. Prepare three long-width paper materials of the same width, which are a first layer paper, a second layer paper, and a third layer paper, respectively. The paper and the third layer of paper are stone paper, and the second layer of paper is wood pulp paper; B. The long sides of the first layer of paper, the second layer of paper, and the third layer of paper are stacked on top of each other in a shingled manner , And the half of the short side width is bonded to each other to form a three-layer composite paper; and C. The three-layer composite paper is wound in a spiral winding manner and overlapped in a misaligned manner The first layer of paper, the second layer of paper and the third layer of paper are adhered to each other to form the three-layer composite paper straw with three layers of tube walls, the first layer of paper becomes the most of the three-layer composite paper straw For the outer layer, the second layer of paper becomes the middle layer of the three-layer composite paper straw, and the third layer of paper becomes the inner layer of the three-layer composite paper straw. The method for manufacturing a three-layer composite paper straw according to claim 5, wherein the first layer of paper, the second layer of paper and the third layer of paper are made of adhesive, hot-melt press and ultrasonic Any one of these methods can bond the contact surfaces together. The method for manufacturing a three-layer composite paper straw according to claim 5, wherein the second-layer paper is long-fiber wood pulp paper. The method for manufacturing a three-layer composite paper straw according to claim 5, characterized in that: the long sides of the first layer of paper, the second layer of paper and the third layer of paper are stacked on top of each other in a tiled manner. The second surface of the first layer of paper occupies the second half of the first layer of paper, and the second half of the width of the first layer of paper is attached to the second layer of paper, the first surface of the second layer of paper accounts for 1/2 of the short side The first half of the width, the second surface of the second layer of paper accounts for 1/2 of the second layer of paper, and the second half of the width of the short side is pasted on the first surface of the third layer of paper, accounting for 1 of the third layer of paper. /2 The first half of the short-side width; where the three-layer composite paper is bonded into a tube by spiral winding and dislocation overlap, the three-layer composite paper straw is the first to be wound from the three-layer composite paper At the beginning of the end of a circle and after the winding part, the second half of the first layer of paper occupies the first half of the short side width of the first layer of paper is stuck to the second layer of paper A surface occupies the second half of the second layer of paper in the second half of the width of the short side, the second layer of paper occupies the first half of the second layer of paper in the first half of the short side of the width The first surface of the three-layer paper occupies the second half of the short-side width of the third layer of paper.

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