TWI671184B - Three-layer composite material paper straw and manufacturing method thereof - Google Patents

Abstract

The invention discloses a three-layer composite material paper straw and a manufacturing method thereof. Basically, a three-layer composite paper material composed of three layers of paper material is made by spiral winding. The three-layer composite paper material includes: One layer of paper, second layer of paper and third layer of paper; the first layer of paper and third layer of paper are stone paper, the second layer of paper is long fiber wood pulp paper, the first layer of paper, the second layer of paper and the third layer of paper The long sides of the layer of paper are stacked on top of each other in a shingled manner, and the parts occupying 1/2 of the width of the short side are bonded to each other. The three-layer composite paper is adhered to each other in a spiral winding and misaligned overlapping structure. Three-layer composite material paper straws with three-layer tube walls, where the first layer of paper becomes the outermost layer of the three-layer composite material paper straws, the second layer of paper becomes the middle layer of the three-layer composite material paper straws, and the third layer of paper becomes three layers The inner layer of a composite material paper straw; the three-layer composite material paper straw of the present invention has the advantages of environmental protection, full recycling and recyclability, good structural strength, and easy production.

Description

Three-layer composite material paper straw and manufacturing method thereof

The invention relates to a structure of a straw and a manufacturing method thereof, in particular to a three-layer composite material 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 food utensils-straws, is a commonly used appliance for drinking beverages regardless of country and food culture.

Due to the improvement of material living standards in modern society, whether it is packaged beverages or on-site prepared beverages are extremely popular, so the number of drinking straws consumed by the global population every day is very alarming. At present, most of the straws used are mainly plastic straws. Although the volume of each plastic straw is not large, the cumulative amount used daily is incomparable to other plastic tableware. It is also because of the plastic straws. The volume is not large, and it is not easy to handle even after recycling. Therefore, an extremely large amount of straw waste is generated every day around the world. In addition to the large amount of plastic waste, which will be harmful to the environment, it will also increase a lot of processing costs.

In order to solve the problem of traditional plastic straws, a reusable straw has appeared in the market. A typical one is a straw made of stainless steel. Although this stainless steel straw has the advantage of being reusable, it needs to be used in a portable way. The number of users is still limited, and the penetration rate is very low. In a short time, it is still impossible to completely replace the traditional plastic straws and solve the environmental protection problems caused by plastic straws. In addition, the stainless steel straws need to be reused after repeated use. Toxic procedures, but the diameter of these straws 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 a three-layer composite material paper straw that is environmentally friendly, can be completely recycled, and is easy to produce, and a manufacturing method thereof.

In order to solve the above-mentioned technical problem, an embodiment of the three-layer composite material paper straw of the present invention is basically made of a three-layer composite paper material composed of three layers of paper material by spiral winding and dislocation overlapping. The three-layer composite paper material includes: a first layer of paper, a second layer of paper, and a third layer of paper; wherein the first layer of paper, the second layer of paper, and the third layer of paper are strip-shaped paper materials of the same width; Layer paper and the third layer of paper are stone paper, and the second layer of paper is wood pulp paper. The long sides of the first layer, the second layer, and the third layer of paper are stacked on top of each other and occupy 1 / 2The short side width parts are bonded to each other, and the three layers of composite paper are adhered to each other in a spiral winding and dislocation overlapping structure to form a three-layer composite material paper straw with a three-layer tube wall, in which the first layer of paper becomes The outermost layer of the three-layer composite material paper straw, the second layer of paper becomes the middle layer of the three-layer composite material paper straw, and the third layer of paper becomes the inner layer of the three-layer composite material paper straw.

The preferred embodiment of the wood pulp paper used for the second layer of paper is long-fiber wood pulp paper; this three-layer composite material paper straw made by spiral winding and staggered overlap has three layers of tube walls without The gap will not leak, and the long-fiber wood pulp paper as an intermediate layer can provide sufficient structural strength support, can maintain stiffness, increase the convenience of use, and is not easy to deform.

The long edges 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 way that the second surface of the first layer of paper occupies the second half of the short side width of the first layer of paper. Paste on the first half of the second layer of paper and occupy the first half of the width of the short side of the second layer of paper. The second half of the second half of the short side width of the second layer of paper is pasted to the first half of the third half of the short side width of the third layer of paper; the three layers of composite paper Spiral winding and dislocation overlap are bonded into a tubular three-layer composite material paper straw, starting from the end point of the first turn of the three-layer composite paper winding and the winding part thereafter. The first half of the width of the short side of the first layer of paper on the second surface is affixed to the second half of the width of the short side of the second layer of paper on the first surface of the second layer of paper. The first half of the width of the short side of the second layer of paper on the second surface is adhered to the second half of the width of the short side of the third layer of paper on the first surface of the third layer of paper.

An embodiment of a method for manufacturing a three-layer composite material paper straw of the present invention includes the following steps: A. Prepare three strip-shaped paper materials of the same width, which are a first-layer paper, a second-layer paper, and a third-layer paper. , Where the first and third layers of paper are stone paper, 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 , And a half of the width of the short side 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 The first layer of paper, the second layer of paper, and the third layer of paper are bonded to each other to form a three-layer composite material paper straw with a three-layer tube wall, wherein the first layer of paper becomes the outermost layer of the three-layer composite material paper straw and the second layer The paper becomes the middle layer of the three-layer composite material paper straw, and the third layer of paper becomes the inner layer of the three-layer composite material paper straw.

An embodiment of a method for manufacturing a three-layer composite material paper straw according to the present invention includes using any of the methods of adhesive, hot-melt bonding, and ultrasonic welding to bond the first layer of paper, the second layer of paper, and the third layer of paper. The contact surfaces between them are stuck together.

The beneficial effect of the three-layer composite material paper straw is that it is environmentally friendly and can be completed. Full recycling, and the advantages of easy production; on the other hand, this method uses spiral winding and dislocation overlapping to make a three-layer composite material paper straw, which has three layers of tube walls without gaps and will not leak, as an intermediate layer The long-fiber wood pulp paper can provide sufficient structural strength support, can maintain stiffness, increase the convenience of use, and is not easy to deform.

10‧‧‧ First layer of paper

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

10B‧‧‧ Second surface of the first layer of paper

20‧‧‧Second layer of paper

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

20B‧‧‧Second surface of second paper

30‧‧‧ Third paper

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

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

40‧‧‧Gluing unit

50‧‧‧ Winding device

L‧‧‧long side

P‧‧‧Three-layer composite paper

W‧‧‧Short side width

S1‧‧‧ The first half of the second surface of the first layer of paper occupies 1/2 of the short edge width of the first layer of paper. At the second half

S2 The first half of the second surface of the second layer of paper occupies 1/2 of the short edge width of the second layer of paper At the second half

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

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

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

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

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

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

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

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

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

The three-layer composite material paper straw of the present invention is basically composed of three layers of paper material A three-layer composite paper material P is made by spiral winding and dislocation overlapping. The three-layer composite paper material P includes: a first layer of paper 10, a second layer of paper 20, and a third layer of paper 30, The first layer of paper 10, the second layer of paper 20 and the third layer of paper 30 are strip-shaped paper materials of the same width. The first layer of paper 10 and the third layer of paper 30 are stone paper, and the second layer of paper 20 is wood. Pulp paper, preferably using long-fiber wood pulp paper as the second layer of paper 20, the first layer of paper 10, the second layer of paper 20, and the long sides L of the third layer of paper 30 stacked on top of each other (see (Figure 3), and they are bonded to each other with a portion of 1/2 of the short side width W. In order to achieve a continuous winding production method, the first layer of paper 10, the second layer of paper 20, and the third layer of paper 30 The length is not limited. The preferred embodiment is to use a rolled paper strip as a material source; the three-layer composite paper material P is wound in a spiral winding manner, and the first layer is overlapped and offset. Paper 10, second paper 20 and third paper 30 are glued to each other to form a three-layer composite material straw with three-layer tube walls (see Figure 5), of which the first-layer paper 10% Three-layered composite material of the outermost layer of straw paper, the paper layer 20 is a second intermediate layer of the three-layered composite material of straw paper, a third paper layer 30 is an inner-layer composite sheet material of the straw.

The first layer of paper 10, the second layer of paper 20, and the third layer of paper 30 all have opposite first and second surfaces (for ease of explanation, the component 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), and the three layers of the composite paper material P are used to make a tubular three layer After the composite material paper straws, the first surface thereof faces the outside of the three-layer composite material paper straws, and the second surface faces the inside of the three-layer composite material paper straws.

Please refer to FIG. 6, which is a step diagram of an embodiment of a method for manufacturing a three-layer composite material paper straw according to the present invention, including: A. preparing three strip-shaped paper materials of the same width, which are the first layer of paper 10, Two-layer paper 20 and third-layer paper 30, wherein 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 and the second-layer paper 20 And the long side L of the third layer of paper 30 are stacked on each other in a shingled manner, and are bonded to each other with a portion of 1/2 of the short side width W to form a three-layer composite paper P; and C. spirally rolled Three layers of composite paper material P are 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 in a staggered and overlapping manner to form a three-layer composite with three-layer tube walls. Material paper straws, in which the first layer of paper 10 becomes the outermost layer of the three-layer composite material paper straw, the second layer of paper 20 becomes the middle layer of the three-layer composite material paper straw, and the third layer of paper 30 becomes the three-layer composite material paper straw. Inner layer.

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

An embodiment of a method for manufacturing a three-layer composite material paper straw according to the present invention includes using any one of adhesive, hot-melt bonding, and ultrasonic welding to bond the first layer of paper 10, the second layer of paper 20, and the third layer. The contact surfaces of the sheets 30 are bonded together. Because the composition of stone paper is basically made of 80% stone powder (calcium carbonate CaCO3) and 20% environmentally friendly high density polyethylene (HDPE), the polyethylene (PE) contained in it can also be ultrasonic fusion or The first layer of paper 10, the second layer of paper 20, and the third layer of paper 30 are bonded together by heating and welding.

Please refer to FIG. 4, in which the three-layer composite paper material P is wound into a tubular three-layer composite material paper straw by spiral winding and dislocation overlapping, which is the first turn of the three-layer composite paper material P Starting from the end point and after the winding, the first half of the second surface 10B of the first layer of paper 10 which 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 It occupies the second half of the short side width W of the second layer of paper (indicated by the symbol S1 in the figure), and the second surface 20B of the second layer of paper 20 occupies the half of the short side width W of the second layer of paper 20 The first half of the paper is pasted on the first surface 30A of the third layer of paper 30 and occupies the second half of the short side width W of the third layer of paper 30 (indicated by the symbol S2 in the figure). This type of three-layer composite material paper straw is wound into a tube by spiral winding and dislocation overlap. The first layer of paper 10 becomes the outermost layer of the three-layer composite material paper straw, and the second layer of paper 20 becomes the three-layer composite. The middle layer of the paper straws made of material, and the third layer of paper 30 becomes the inner layer of the three-layer paper straws made of composite material (see Figure 5).

Please refer to FIG. 7, which is a schematic diagram of a device architecture of an embodiment of a method for manufacturing a three-layer composite material paper straw according to the present invention. According to an embodiment shown, the first layer of paper 10, the second layer of paper 20, and the third layer of paper 30 having the same width of the short side W are respectively rolled into a roll as a paper material for manufacturing a three-layer composite material paper straw. Source, the first layer of paper 10, the second layer of paper 20 and the third layer of paper 30 are respectively coated on the contact surfaces of the first layer of paper 10, the second layer of paper 20 and the third layer of paper 30 by a gluing unit 40, respectively. Cover the food-grade adhesive, and 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 guide the first layer of paper 10 and the second layer of paper 20 The third layer of paper 30 is bonded to form a three-layer composite paper material P, and finally a three-layer composite material paper straw with a three-layer tube wall is continuously produced by spiral winding and dislocation overlapping.

Please refer to FIG. 8. The three-layer composite paper straws of the present invention use three-layer composite paper materials P composed of three layers of paper materials to adhere to each other in a spiral winding and dislocation overlapping manner, which can be continuous. To produce a tubular structure, and then cut the tubular structure at a predetermined position of the straw length, a three-layer composite material paper straw can be continuously and massively produced, of which a section of the three-layer composite material paper straw that was initially completed during the winding manufacture, because The pipe wall structure with three layers should be cut off and discarded.

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 the definition in the claims of this application.

Claims (8)

A three-layer composite material paper straw is a three-layer composite paper material composed of three layers of paper materials, which is made by spiral winding and dislocation overlapping. The three-layer composite paper material includes: a first layer of paper and a second layer Paper and third layer of paper; the first layer of paper, the second layer of paper and the third layer of paper are strip-shaped 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. The long sides of the first layer, the second layer, and the third layer of paper are stacked on top of each other in a shingle manner, and each other occupies 1/2 of the width of the short side. Bonded together, the three-layer composite paper material is adhered to each other in a spiral winding and dislocation overlapping manner to form the three-layer composite material paper straw with a three-layer tube wall, and the first layer of paper becomes the three-layer composite material paper straw. In the outermost layer, the second layer of paper becomes the middle layer of the three-layer composite material paper straw, and the third layer of paper becomes the inner layer of the three-layer composite material paper straw. The three-layer composite material paper straw as described in claim 1, wherein the first layer of paper, the second layer of paper, and the third layer of paper are made by any of the methods of using adhesive, heat fusion bonding, and ultrasonic welding. Bond the contact surfaces between each other. The three-layer composite material paper straw according to claim 1, wherein the second layer of paper is a long-fiber wood pulp paper. The three-layer composite material paper straw according to claim 1, wherein the first layer of paper, the second layer of paper, and the third layer of paper all have opposite first and second surfaces. The first layer of paper, the The long sides of the second layer of paper and the third layer of paper are stacked on top of each other in a shingled manner, and the second surface of the first layer of paper occupies the second half of the short side width of the first layer of paper. The first surface of the second layer of paper occupies the first half of the 1/2 short edge width of the second layer of paper, and the second surface of the second layer of paper occupies 1/2 the short side width of the second layer of paper The second half of the paper is adhered to the first half of the third layer of paper, and the first half of the third layer of paper occupies the first half of the width of the short side of the third layer of paper; wherein the three layers of composite paper are bonded together by spiral winding and dislocation overlapping. The three-layer composite material paper straw, which is tubular, is a winding portion starting from the end point of the first turn of the three-layer composite paper winding and the subsequent winding portions, and the second surface of the first layer of paper occupies the first The first half of the 1/2 short edge width of the second layer of paper is pasted on the first surface of the second layer of paper to occupy the second half of the short edge width of the second layer of paper. The first half of the second layer of paper having a half of the short side width of the second layer of paper is pasted to the second half of the short layer of the third layer of paper. A method for manufacturing a three-layer composite material paper straw includes the following steps: A. preparing three strip-shaped paper materials of the same width, namely a first layer of paper, a second layer of paper, and a third layer of paper, the first layer The paper and the third layer of paper are stone paper, 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 two layers of the short side width of 1/2 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 is overlapped and displaced. 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 material paper straw with a three-layer tube wall. The first layer of paper becomes the most Outer layer, the second layer of paper becomes the middle layer of the three-layer composite material paper straw, and the third layer of paper becomes the inner layer of the three-layer composite material paper straw. The method for manufacturing a three-layer composite material 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 viscose, hot-melt bonding, and ultrasonic welding. Either way, the contact surfaces between them are glued together. The method for manufacturing a three-layer composite material paper straw according to claim 5, wherein the second layer of paper is long-fiber wood pulp paper. The method for manufacturing a three-layer composite material paper straw according to claim 5, wherein the first layer of paper, the second layer of paper, and the third layer of paper all have opposite first and second surfaces, and the first layer The long sides of the paper, the second layer of paper, and the third layer of paper are stacked on top of each other in a shingled manner. The second surface of the first layer of paper occupies the second half of the width of the short side of the first layer of paper. The section is pasted on the first half of the second layer of paper and the first half of the width of the short side of the second layer of paper, and the second surface of the second layer of paper occupies 1/2 of the second layer of paper. The second half of the short edge width is pasted on the first surface of the third layer of paper, which occupies the first half of the short edge width of the third layer of paper. The three layers of composite paper are spirally wound and misaligned to overlap. The three-layer composite material paper straw that is bonded into a tube in a manner starts from the end point of the first winding of the three-layer composite paper and the winding part thereafter, and occupies the second surface of the first layer of paper. The first half of the 1/2 short edge width of the first layer of paper is pasted to the first half of the second layer of paper and the second half of the short edge width of the second layer of paper. The first half of the second surface of the second layer of paper occupies 1/2 of the short edge width of the second layer of paper is stuck to the first surface of the third layer of paper occupies 1/2 of the short edge width of the third layer of paper the second half.