TWM581043U - Paper straw - Google Patents

Abstract

A paper straw includes a first paper layer and a second paper layer. The first paper layer has a basis weight of 30 to 80 gsm and an opacity of equal to or smaller than 70%. The second paper layer has a basis weight of 90 to 200 gsm. The first paper layer further includes a first surface and a second surface, wherein the first surface faces the second paper layer, and the second surface is calendered to have a smoothness of more than 200 seconds/10mL and form an outer surface of the paper straw.

Description

Paper straw

This creation is about a paper straw.

Due to the improvement of material and living standards in modern society, both packaged drinks and on-site brewing beverages are extremely popular, and straws have become a daily necessities for modern people. At present, most of the straws are still only disposable plastic products. The daily consumption of plastic straws and the amount of waste generated by the global population is not only causing considerable processing costs, but also environmental impact. Therefore, reusable straws of various materials have been introduced in the market today, such as stainless steel straws, glass straws, etc., but these straws need to be used on the one hand and the eating habits, and the two aspects require cleaning and other procedures, thereby improving the use of consumers and businesses. The willingness to completely replace disposable straws. In order to balance convenience and environmental protection, there is a need to develop straws of other materials.

The conventional disposable plastic straw has problems such as difficulty in decomposition and recovery, and the present invention proposes a paper straw which can be directly recovered by 100% pulp production, and the outer surface is calendered to have a smooth touch and low water absorption. It is environmentally friendly and easy to use. In addition, in order to increase the aesthetic appearance of the straw or as a labeling function, it is a conventional practice to directly print the food grade ink on the surface of the straw. The paper suction tube proposed by the present invention has a partial transparency, text, by the calender treatment. The pattern or the like is printed between the straw paper layers and penetrates the outermost layer, reducing the risk of the printing ink being directly in contact with the user's mouth or food.

The paper straw provided by the present invention includes a first paper layer and a second paper layer. The first paper layer has a basis weight of 30 to 80 gsm and an opacity of ≦70%. The second paper layer has a basis weight of 90 to 200 gsm. The first paper layer further includes a first surface facing the second paper layer, the second surface being calendered to have a smoothness of 200 seconds/10 mL or more, and forming an outer surface of the paper straw.

In an embodiment of the present invention, the first paper layer and the second paper are laminated and then wound to form a paper straw.

In an embodiment of the present invention, the first paper layer further has a printed layer formed on the first surface, and the printed layer is visible on the second surface of the first paper layer.

In an embodiment of the present invention, the printed layer includes a pattern, a text, or a combination of a pattern and a character.

In an embodiment of the present invention, the first paper layer has a basis weight of 50 to 60 gsm.

In an embodiment of the present invention, the second paper layer has a basis weight of 120 to 150 gsm.

In an embodiment of the present invention, the paper straw further comprises a third paper layer, and the third paper layer has a basis weight of 90 to 200 gsm.

In an embodiment of the present invention, the third paper layer has a basis weight of 120 to 150 gsm.

In an embodiment of the present invention, the first paper layer, the second paper layer, and the third paper are laminated, and then wound to form a paper straw.

The above and other objects, features and advantages of the present invention will become more apparent and understood.

The above and other technical contents, features and effects of the present invention will be apparent from the following detailed description of the preferred embodiments. The directional terms mentioned in the following embodiments, for example, up, down, front or back, etc., are only directions referring to the additional drawings. Therefore, the directional terminology used is used to illustrate that it is not intended to limit the creation.

This creation provides a paper straw. As shown in the embodiment of Figures 1-3, the paper straw 10 includes a first paper layer 100 and a second paper layer 200. The first paper layer 100 includes a first surface 110 and a second surface 120, wherein the first surface 110 faces the second paper layer 200 and the second surface 120 forms an outer surface of the paper straw 10. The first paper layer 100 has a basis weight of 30 to 80 gsm, preferably 50 to 60 gsm. According to the present invention, the paper of the first paper layer 100 may be a calendered kraft paper, a machine glazed paper, a tracing paper or a parchment paper, but not To the extent that other papers suitable for calendering or transparency can be used for the present invention, papers prepared using long fiber wood pulp (NBKP) are preferred. The second paper layer 200 is heavier than the first paper layer 100, imparting hardness and support to the paper straw 10, and has a basis weight of 90 to 200 gsm. More preferably, the second paper layer 200 may have a basis weight of 120 to 150 gsm. According to the present creation, the paper of the second paper layer 200 is the same as the first paper layer 100, but is not limited thereto.

According to the present creation, the second surface 120 of the first paper layer 100 is calendered to have an opacity of less than or equal to 70% and a smoothness of 200 seconds/10 mL or more, and those skilled in the art can rely on the transparency of the pattern and The need for a smooth touch determines the opacity and smoothness of the first paper layer 100. In an embodiment of the present creation, the first paper layer 100 has an opacity of less than 55% and a smoothness of greater than 800 seconds/10 mL. More preferably, the smoothness is 1000 to 1500 seconds/10 mL.

The "calendering treatment" described in the present invention may be, but not limited to, a treatment method such as hard calendering, soft calendering, or supercalendering. According to an embodiment of the present invention, the calendering process is performed on the second surface 120 of the first paper layer 100 by an auto-calendering process, the calendering temperature is 60 to 150 ° C, and the calendering line is 15 to 350 N/mm. get on. The supercalendering treatment imparts a low water absorption property to the first paper layer 100 in addition to the smoothness of the first paper layer 100 and the fineness of the paper suction pipe 10. Further, according to the present creation, the first surface 110 of the first paper layer 100 may also be subjected to an overcalendering process in accordance with product requirements to increase paper transparency and surface smoothness. According to another embodiment of the present creation, both sides of the first paper layer 100 and the second paper layer 200 are subjected to an over-calendering process.

As shown in FIG. 2, the first paper layer 100 may further have a printed layer 150 formed on the first surface 110. The printed layer 150 includes a pattern, a text or a combination of a pattern and a character. The combination of the pattern, the text or the pattern and the text is formed by printing in a food grade ink, but is not limited thereto. Since the first paper layer 100 has an opacity of less than or equal to 70%, the pattern and text of the printed layer 150 can be seen through the first paper layer 100 and can be seen on the second surface 120 to provide, for example, labeling, beautification, advertising, and the like. . 3 is a partially enlarged schematic view of the E1 mark of FIG. 1. The first paper layer 100 is oriented with its first surface 110 facing the second paper layer 200, and is overlapped with the second paper layer 200, and then wound to form a paper straw. 10 (see Figure 1). Since the first surface 110 faces the second paper layer 200, the printing layer 150 is located between the first paper layer 100 and the second paper layer 200, so the ink of the printing layer 150 does not contaminate the food and does not directly contact. It reaches the user's mouth, thus reducing the risk of eating the printed ink and damaging health.

4 to 5 are another embodiment of the present invention, wherein FIG. 5 is a partially enlarged schematic view showing the mark E2 of FIG. 4. As shown in FIGS. 4 to 5, the paper straw 10a includes a first paper layer 100, a second paper layer 200, and a third paper layer 300. The first paper layer 100, the second paper layer 200, and the third paper layer 300 are sequentially stacked, and then wound to form a paper suction pipe 10a. In one embodiment, the characteristics of the first paper layer 100 and the second paper layer 200 are as described above, and the third paper layer 300 has a basis weight of 90 to 200 gsm, more preferably 120 to 150 gsm. According to the present creation, the paper of the third paper layer 300 may be the same as the first paper layer 100 and the second paper layer 200, but is not limited thereto. Since the paper straw 10a has the structure of the third paper layer 300, it has better hardness and support by increasing the basis weight, and can also provide better anti-wet and anti-wetting effect and prolong the use time. According to an embodiment of the present creation, the third paper layer 300 has the same over-pressure treatment as the first paper layer 100.

The manufacturing method of the paper straw of the present invention is as shown in Figs. 6 to 8, and the paper suction pipe 10a will be described as an example. As shown in FIG. 6, after the first paper layer 100, the second paper layer 200, and the third paper layer 300 are aligned with each other, they are cut into long strips of paper, and the long paper is prepared by winding. The paper straw 10a of the present creation. According to an embodiment of the present creation, the stack between the paper layers may be further coated with a food grade adhesive to increase the convenience of winding production, but the creation does not limit the connection. According to another embodiment of the present invention, the first paper layer 100, the second paper layer 200, and the third paper layer 300 are firstly cut into strips of the same width and then stacked one on another, and then prepared by winding. The paper straw 10a is a creation.

In the foregoing, the winding is preferably spirally wound. As shown in the cross-sectional view of FIG. 7, the first paper layer 100, the second paper layer 200, and the third paper layer 300 are stacked and connected in the foregoing manner, and then cut into long strips of paper, spirally wound in a fixed direction, and rearward. The helical portion overlaps the forward abutting spiral. For example, referring to Figure 7, the surface 310 of the rear helical third paper layer 300 will be partially joined to the second surface 120 of the front spiral first paper layer 100. According to an embodiment of the present invention, the portion of the spiral overlap is coated with a food grade adhesive, but the creation does not limit the type of food grade adhesive. Another paper straw 10 provided by the present invention is also the same preparation process, and will not be further described herein.

Fig. 8 is a schematic view showing the manufacturing process of the paper suction pipe 10a provided by the present invention. The paper roll 1000 provides the material of the first paper layer 100, has a fixed width, and is cut into strips of paper. The paper may also be printed with characters and patterns as needed. The paper roll 2000 provides the material of the second paper layer 200, and the paper roll 3000 provides the material of the third paper layer 300, which has also been cut into strips of fixed width. The first paper layer 100 material, the second paper layer 200 material, and the third paper layer 300 material may partially or entirely pass through the gumming unit 4000 to be in the first paper layer 100, the second paper layer 200, and the third paper layer 300. The contact surface is coated with adhesive. After the first paper layer 100 material, the second paper layer 200 material, and the third paper layer 300 material are stacked and connected to each other, the hollow tubular structure 10a' is formed in a spirally wound manner by being guided to the winding device 5000. Another glue-coated unit can also be set during the guiding process, and the adhesive is applied to the edge of the long strip of paper, and the overlapped portion can be fixed by the glue when spirally wound. When spirally wound to an appropriate length, the hollow tubular structure 10a' can be withdrawn from the winding device 5000 and cut to produce a plurality of paper straws 10a. It should be noted that this creation does not limit the manufacturing method of the paper straw, nor does it limit the number of paper layers of the paper straw, for example, the number of paper layers can be increased to four or five layers. The number of paper layers can be adjusted according to the requirements of paper straws such as hardness, supportability, etc., the material of the paper layer, the basis weight, and the manufacturing method.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Those skilled in the art to which the present invention pertains may have some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this creation is subject to the definition of the scope of the patent application attached.

10, 10a‧‧‧ paper straws

10a’‧‧‧ hollow tubular structure

100‧‧‧First paper layer

110‧‧‧ first surface

120‧‧‧second surface

150‧‧‧Printing layer

200‧‧‧ second paper layer

300‧‧‧ third paper layer

310‧‧‧ surface

1000, 2000, 3000‧‧‧ paper rolls

4000‧‧‧Glue unit

5000‧‧‧Winding device

E1, E2‧‧‧ mark the part of the paper straw

Fig. 1 is a perspective view showing an embodiment of a straw made of paper.  2 is a perspective view of the first paper layer of the embodiment shown in FIG. 1.  Figure 3 is a partially enlarged schematic view of the embodiment of Figure 1.  Fig. 4 is a perspective view showing another embodiment of a straw made of paper.  Figure 5 is a partially enlarged schematic view of the embodiment of Figure 4.  Figure 6 is a partially exploded perspective view of the embodiment of Figure 4.  Figure 7 is a cross-sectional view of the embodiment of Figure 4.  Fig. 8 is a schematic view showing the manufacturing process of the embodiment of the straw made of paper.  

Claims (9)

A paper straw, comprising:  a first paper layer having a basis weight of 30 to 80 gsm and an opacity of ≦70%;  a second paper layer, the second paper layer has a basis weight of 90 to 200 gsm;  The first paper layer includes a first surface facing the second paper layer, the second surface is calendered to have a smoothness of 200 seconds/10 mL or more, and the second surface The surface forms the outer surface of the paper straw.   The paper straw according to claim 1, wherein the first paper layer and the second paper are laminated and then wound to form the paper straw. The paper straw of claim 1, wherein the first paper layer further has a printed layer formed on the first surface, and the printed layer is visible on the second surface of the first paper layer. The paper straw according to claim 3, wherein the printing layer comprises a pattern, a letter or a combination of a pattern and a character. The paper straw according to claim 1, wherein the first paper layer has a basis weight of 50 to 60 gsm. The paper straw according to claim 1, wherein the second paper layer has a basis weight of 120 to 150 gsm. The paper straw according to claim 1, further comprising a third paper layer having a basis weight of 90 to 200 gsm. The paper straw according to claim 7, wherein the third paper layer has a basis weight of 120 to 150 gsm. The paper straw according to claim 7, wherein the first paper layer, the second paper layer and the third paper are laminated, and the paper straw is formed by winding.