WO2020067676A1

WO2020067676A1 - Prefabricated straw using surface tension of beverage

Info

Publication number: WO2020067676A1
Application number: PCT/KR2019/012208
Authority: WO
Inventors: 김영수; 하나연; 김라엘
Original assignee: 김영수; 하나연; 김라엘
Priority date: 2018-09-27
Filing date: 2019-09-20
Publication date: 2020-04-02
Also published as: KR20200035701A; KR102116616B1

Abstract

A prefabricated straw using the surface tension of a beverage, according to the present invention, comprises: a semi-cylindrical first body made from a bendable material; a semi-cylindrical second body which is made from a bendable material, and which have both ends entering an opening of the first body so as to be formed cylindrically together with the first body; a hollow portion which is a passage through which a beverage passes inside the first and second bodies; and a water layer which is created by the surface tension of the beverage remaining between facing surfaces of the first and second bodies, and which adheres the facing surfaces of the first and second bodies to each other. According to the prefabricated straw of the present invention, a reusable straw for preventing environmental pollution can be manufactured with an intuitive and simple structure that is easily manufactured while preventing the beverage from leaking by means of the surface tension of the beverage.

Description

Prefabricated straw using surface tension of drinks

The present invention relates to a prefabricated straw using the surface tension of the beverage, assembles two bodies made of eco-friendly materials to form a straw, but uses the water film generated by the surface tension of the beverage as a guard component to adhere the two bodies to the beverage It is about a buildable straw that can be made cheaper and easier without leaking.

The straw is a tool that moves the beverage into the mouth along the hollow inside through the user's inhalation motion while entering the beverage in the direction of opening, and is widely used in modern society with a long elongated shape.

The straw has been mainly made of reusable plastics, and according to a 2015 Ministry of Environment survey, Koreans use about 2.6 billion straws annually.

Recently, as the perception that the environmental pollution caused by plastics, which takes a long time to decompose, is serious, has increased, opinions about removing plastic straws are frequently appearing, and in the United States and Europe, the straw itself, including plastic straws, has been actively expelled. It is unfolding.

At the same time, non-plastic straws are being produced, which are also made of, for example, stainless steel, silicone, bamboo or paper, or even sugar cane.

This non-plastic straw has been used for one-time use and disposable, and has been pursuing a reusable purpose at the same time. As such prior art, Korean Patent No. 1861432, an assembly and disassembly straw has been published.

The technique includes a semi-cylindrical first body portion having a predetermined thickness and having at least one first coupling portion formed on a cross-section portion; And a semi-cylindrical second body portion formed with at least one second coupling portion corresponding to the at least one first coupling portion of the first body portion to engage the first body portion. A portion and the second body portion are combined to form a single cylindrical shape, and at least partially accommodated in a container containing a solution to form a hollow therein to suck the solution, and the at least one first coupling of the first body portion A plurality of pad portions connecting the portion and the at least one second coupling portion of the second body portion is further formed, and the at least one first coupling portion and the second body portion formed in the first body portion are formed. The at least one second coupling portion is formed of a protrusion, and both side surfaces of the plurality of pad portions are formed with grooves into which the protrusion is inserted, the It is described that the first body portion and the second body portion are coupled by the plurality of pad portions, and thus can be reused prefabricated to prevent environmental pollution.

This technology is thought to be patented, especially due to the characteristics of the pad portion. In the state where the thickness of the straw is thin, the hassle of manufacturing the pad portion of the microstructure in order to insert the pad portion therebetween and the excessive cost to produce it There is a problem that it can take.

Therefore, there is a need to develop a new and advanced straw that provides a reusable assembly-based straw as a non-plastic material, but that prevents beverages from leaking between the assembly parts with a simpler and more intuitive structure.

The present invention has been devised to overcome the problems of the above technology, and the reusable straw of the first and second bodies that prevents environmental pollution as an intuitive and simple structure that is easy to manufacture without leaking through the surface tension of the beverage. The main purpose is to provide a structure of.

Another object of the present invention is to provide a structure that prevents the problem of the first and second bodies idling.

Another object of the present invention is to provide a composition containing not only the viscous force between the first and second bodies while identifying the use time, but also the beneficial components of the human body.

A further object of the present invention is to secure a stable close relationship between the first and second bodies by constructing the first and second bodies with double materials having different linear expansion coefficients.

A further object of the present invention is to make the second body more resiliently wrapped through structural deformation of the first body.

In order to achieve the above object, the prefabricated straw using the surface tension of the beverage according to the present invention, a first body made of a semi-cylindrical bending material; A second body formed of a semi-cylindrical bendable material, both ends of which enter the opening side of the first body and form a cylindrical shape together with the first body; A hollow which is a passage through which beverages pass in the first and second bodies; Characterized in that it comprises a; water film that adheres to the opposite surface of the first and second bodies, which is caused by the surface tension of the beverage remaining between the opposite surfaces of the first and second bodies.

In addition, on the side facing the second body from the first body, an indent protruding toward the second body is formed, wherein the indent consists of at least one set along the perimeter of the first body. It is characterized by being formed in a plurality of sets at regular intervals along the length direction of the straw.

In addition, it is characterized in that at least one of the opposing surfaces of the first and second bodies is formed with an indentation groove having a certain depth.

Additionally, at least one of the opposing surfaces of the first and second bodies is characterized in that a slip-prevention layer made of a material having a higher coefficient of friction than the opposing surfaces of the first and second bodies is laminated.

According to the prefabricated straw using the surface tension of the beverage according to the present invention, 1) Through the surface tension of the beverage, it is possible to manufacture a reusable straw that prevents environmental pollution as an intuitive and simple structure that is easy to manufacture without leaking. 2 ) It is possible to guarantee the close proximity of the two bodies being assembled, and 3) it is possible to keep the hygiene by knowing the replacement time by roughly grasping the use time of the straw, and 4) it contains ingredients that are beneficial to the human body. As well as reducing the burden of using a straw, 5) has the effect of wrapping the body located inside more elastically due to the structural characteristics of the body located outside.

1 is a perspective view and a partially enlarged cross-sectional view of a basic embodiment of the straw of the present invention.

2 is a cross-sectional view of a further embodiment of the straw of the present invention.

Figure 3 is a cross-sectional view of the first modified embodiment indentation is formed in the straw of the present invention.

4 is a cross-sectional view of a second modified embodiment in which a groove and a functional viscous body are formed in a straw of the present invention.

Figure 5 is a cross-sectional view showing a state in which the anti-slip layer is coated on the straw of the present invention.

6 is a cross-sectional view of a third modified embodiment in which the thickness of the first body of the present invention is differentially treated.

7 is a cross-sectional view of a fourth modified embodiment in which the radius of curvature of the first body of the present invention is differentially treated.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. The accompanying drawings are not drawn to scale, and the same reference numbers in each drawing refer to the same components.

1 relates to a basic embodiment for implementing the straw of the present invention, the first body 100 made of a semi-cylindrical bendable material, and both ends of the first body 100 made of a semi-cylindrical bendable material ) Enters the opening side of the first body 100 and the second body 200 forming a cylindrical shape, and the inside of the first and

second bodies

100 and 200, a passage through which beverages pass, and the first and second bodies It may be caused by the surface tension of the beverage remaining between the opposing surfaces of (100,200), and may include a water film 10 that adheres the opposing surfaces of the first and second bodies 100,200.

Specifically, the first body 100 and the second body 200 are rounded and extended like a C shape in a state in which one side has an open opening, and the shapes of both are the same or similar. When the openings of the first and

second bodies

100 and 200 are positioned to face each other, and then the second body 200 enters the first body 100, hollow is generated inside the coupling body of the first and

second bodies

100 and 200. It becomes a body that is almost like a cylindrical shape.

At this time, since the second body 200 enters the first body 100, when the first and

second bodies

100 and 200 are combined, the radius of curvature of the first body 100 is greater than that of the second body 200. It may be possible, even before coupling, the radius of curvature (or diameter) of the first body 100 may be greater than the radius of curvature (or diameter) of the second body 200, or the radius of curvature of both may be the same. That is, since the first and

second bodies

100 and 200 are made of a material having flexibility or elasticity, even if the curvature radii of the first and

second bodies

100 and 200 are the same, the second body 200 is elastically applied to the first body 100 ) It is possible to enter into and combine.

In addition, of course, the width of the opening of the first body 100 may be determined in consideration of the elasticity and the diameter of the second body 200.

The material of the first and

second bodies

100 and 200 can be a thin metal material (stainless steel or alloy containing it), a rubber material, etc., and a paper material is also available.

As described above, when the first and

second bodies

100 and 200 are combined, there is no separate coupling means, and both may be separated. However, after the actual combination, the user inserts the straw of the present invention into the beverage and inhales it. As the beverage rises along the direction, the first and

second bodies

100, 200 permeate each other, that is, the opposite side. At this time, the surface tension of the liquid beverage, including water, permeates the opposite surfaces of the first and

second bodies

100 and 200, or the remaining beverage aggregates to form a kind of water film 10. The water film 10 generated by such a principle can faithfully perform a role of preventing the beverage from leaking between the opposite surfaces of the first and

second bodies

100 and 200 and filling this gap.

Such straws can be reused by separating the first and second bodies (100,200) as well as being used for a single use.

As a result, the straw of the present invention according to FIG. 1 can be easily and inexpensively manufactured with a simple structure, and it is environmentally friendly to prevent environmental pollution caused by the excessive occurrence of plastic materials without leaking beverages between the first and

second bodies

100 and 200. It provides properties that can create an atmosphere.

* Figure 2 is a cross-sectional view of a further embodiment of the straw of the present invention.

A further embodiment of the straw of the present invention according to FIG. 2 is that the two bodies are assembled to perform the straw function described above as in the embodiment of FIG. 1, but the first and

second bodies

100, 200 are bent in multiple stages C It can be made of a material having a shape-like structure and in this case not necessarily bendable, for example, a glass material or a porcelain material.

In FIG. 2, the cross sections of the first and

second bodies

100 and 200 are formed of a hexagonal structure such as a honeycomb or a honeycomb. In addition, it can be made of various polyhedral structures such as a triangular or octagonal bar, and is made of a polygonal structure close to a circle It is more preferable for stabilization of the water film.

In FIG. 2, the second body 200 may have a length of each side that is bent in multiple stages to smoothly enter the first body 100 than a length of a corresponding side of the first body 100.

According to such a structure, it is possible to exert the same function as the known straw while forming the water film 10 by the surface tension of the beverage between the first and

second bodies

100 and 200 without turning.

3 is a cross-sectional view of a first modified embodiment in which the indent is mounted on the straw of the present invention.

3, it is possible that at least one side of the opposing surface of the first body 100 is formed with a plurality of indents 110 at regular intervals along the length direction of the straw.

That is, the indent 110 is a portion protruding from the opposite surface of the first body 100 toward the opposite surface of the second body 200, which is the first body 100 toward the second body 200 V-cutting or topical pressing may be used to orient the second body 200, or it may be attached so that a separate attachment material protrudes on the corresponding portion in addition to the hollow structure.

The indent 110 serves as a stopper that prevents the second body 200 from turning or idling within the first body 100.

In addition, the indent 110 is not necessarily limited to being formed on the first body 100, but is also configured to protrude from the opposite surface of the second body 200 toward the opposite surface of the first body 100 It is possible, in this case, especially when the first and

second bodies

100 and 200 are made of an opaque material, when the opening direction of the second body 200 inserted into the first body 100 cannot be confirmed from the outside, the second body 200 It can also serve as a kind of indicator to check the position of the opening.

In addition, these indents 110 may be mounted on opposite surfaces of the first and

second bodies

100 and 200 to further enhance the role of preventing idling of the second body 200.

4 is a cross-sectional view of a second modified embodiment in which the groove and the functional viscous body are formed in the straw of the present invention.

FIG. 4 illustrates a structure in which the indentation groove 120 is formed on any one of the opposing surfaces of the first and

second bodies

100 and 200, and the indentation depth of the indentation groove 120 may be 3 mm at 300 microns.

The indentation groove 120 provides a space for temporarily accommodating a small amount of the beverage, thereby temporarily accommodating the beverage and then flowing the beverage downward by gravity or a user shaking motion while facing the opposite surfaces of the first and

second bodies

100 and 200. Auxiliary role to form the water film 10, that is, it serves to secure the amount of beverage for smooth water film formation.

Furthermore, the indentation groove 120 assists the first and

second bodies

100 and 200 to be bent in the inner direction, that is, in a direction in which they are gathered together, so that the first and

second bodies

100 and 200 are not separated from each other or maintained in close relationship. Can help you do that.

Additionally, it is possible for the indentation groove 120 to contain or coat the viscous body 140.

The viscous body 140 is made of a strong viscous property to enhance the adhesion of the first and

second bodies

100 and 200, and furthermore, when the viscous body 140 has an indentation groove when observed from above or below with a specific color. At 120), the use of the straw of the present invention is roughly grasped through the height of the exposed amount to help determine whether to replace the straw.

To this end, the viscous body 140 of the present invention accommodates a certain amount in the indentation groove 120 in a state containing at least one of xanthan gum, locust bean gum, gum arabic, and guar gum in a state colored in a specific color Or 100 mm to 1 mm thick.

Xanthan gum, locust bean gum, gum arabic, and guar gum are colorless and odorless, and the viscosity does not change over time. The viscous body 140 does not have a property of expanding in volume by contact with water, but has a high viscosity, and when a user bites a straw and inhales, an external force is applied to the area around the indentation groove 120 as if it is a known sword. It may be exposed to the outside of the recessed groove 120 while stretching or partially flowing together.

Since the viscous body 140 exposed to the outside of the indentation groove 120 has a specific color, it is possible to visually check the straw of the present invention by observing it from above or below. It can be inferred that the operation or gripping operation was frequent, and as a result, the amount of the viscous body 140 exposed to the outside may be increased as the periphery of the recessed groove 120 is deformed. Through the amount (high and low) of the amount of 140), it is easy to grasp the use time of the straw of the present invention, whereby the user can recognize that it is time to replace the viscous body 140 when the amount of the exposed amount is large.

In addition, the viscous body 140 may further contain a first functional material so that such a color can be confirmed even at night or in a dark environment.

Specifically, the viscous body 140 containing the first functional material is 10 to 80% by weight of xanthan gum, 10 to 80% by weight of locust bean gum, and 10 to 10% by weight of dicyano pyrazine % Can be prepared by mixing and stirring.

Here, xanthan gum and locust bean gum are mixed together, but when xanthan gum is used alone, the viscosity enhancing ability is slightly lowered, so locust bean gum (LBG), which is known to exhibit a synergistic effect of viscosity when mixed with xanthan gum, is used. It is a mixture. Thus, it is possible to treat the xanthan gum to have a better ability to control the viscosity than the case where the viscous body 140 is produced as the sole active ingredient.

In the present invention, the first functional material, dicyanopyrazine, is a chromochromic fluorescent material, and chromochromic fluorescence changes the original fluorescent color through physical stress such as pressure, and recovers the original fluorescent color through heat or recrystallization. Means the phenomenon. The dicyanopyrazine has an associative structure in which plate-like molecular layers are stacked, and has a property of changing to fluorescent as the plate-like molecular stacking structure is changed by physical stress. Due to the fluorescence of the first functional material, as previously mentioned, it is easy to identify the viscous material that has leaked to the outside even at night or in a dark environment.

Furthermore, it is possible that the viscous body 140 may further contain a second functional material, which is beneficial to teeth when a part of the viscous body 140 is mixed into a beverage and enters the user's mouth. Add ingredients.

Specifically, the specific composition of the viscous body 140 containing the second functional material is 30 to 60 wt% of xanthan gum, 30 to 60 wt% of locust bean gum, and xylitol as compared to the total viscous body weight. It is possible to include 5 to 15% by weight of the second functional substance as an active ingredient.

In this second functional material, xylitol serves to protect the teeth or restore the damaged tooth surface, and may provide a kind of refreshing to the user.

In addition, the second functional material contains xylitol inside a wall made of chitosan as an active ingredient, and protects xylitol in the shape of a capsule to dissolve beverages while partially inhaled into the user's mouth with xanthan gum. It provides the role of allowing the capsule to explode due to the action or the user's biting action to release xylitol at the same time.

Furthermore, the viscous body 140 containing the first and second functional materials is a slit 130 extending through a predetermined length along the longitudinal direction of the straw at the bottom surface of the indentation groove 120 as shown in the drawing. It is also possible to be contained within.

That is, the slit 130 is an additional space cut along the longitudinal direction of the first body 100 at a depth deeper than the indentation groove 120, and the viscous body containing the above-described first and second functional materials is too easy. It serves to prevent exposure to the outside of the recessed groove.

5 is a partially enlarged cross-sectional view showing a state in which the anti-slip layer is coated on the straw of the present invention.

In the embodiment of FIG. 5, the anti-slip layer 50 is coated on each surface of the opposite surfaces of the first and

second bodies

100 and 200, which causes the first and

second bodies

100 and 200 to slip as unnecessary idling is achieved. ) Is provided to prevent the problem that occurs.

Specifically, the anti-slip layer 50 is a material having a friction coefficient greater than the friction coefficients of the opposite surfaces of the first and

second bodies

100 and 200, for example, roughness or fine embossing on a surface or a section made of a material such as rubber / silicon. Formed / laminated the material giving the protrusions on the opposite surfaces of the first and second bodies (100,200), or coated on the opposite surfaces of the first and second bodies (100,200) in the form of a sheet or layer can do.

Furthermore, the anti-slip layer 50 is thicker than that shown in FIG. 5 to be stacked on each of the opposite surfaces of the first and

second bodies

100 and 200 in the same state as the thickness of the first and

second bodies

100 and 200 at the maximum. It might be.

In this case, specifically, the anti-slip layer 50 stacked on the opposite surface (the inner peripheral surface of the first body) of the first body 100 is made of a material larger than the linear expansion coefficient (thermal expansion coefficient) of the first body 100, Similarly, the anti-slip layer 50 stacked on the opposite surface of the second body 200 (the outer circumferential surface of the second body) is made of a material larger than the coefficient of linear expansion of the second body 200. In other words, the anti-slip layer 50 stacked on each of the first and

second bodies

100 and 200 is made of a material larger than the coefficient of linear expansion of each of the first and

second bodies

100 and 200.

In this case, for example, when the first and

second bodies

100 and 200 are made of a metal material, the first and

second bodies

100 and 200 are made of an alloy of nickel and iron, and the slip prevention layer 50 has a greater linear expansion coefficient than that of nickel and manganese. , Iron alloy or nickel, manganese, copper alloy, and the like.

The lamination configuration of the first and

second bodies

100 and 200 applies the principle of bimetal, and a straw is used when drinking a beverage having a temperature lower than normal temperature rather than a hot beverage, but the cold heat of the cold beverage is in the hollow of the straw. When applied, the first body 100 is generally bent in the hollow side direction in a tendency to shrink the anti-slip layer 50 of the first body 100 by stacking a slip-preventing layer having a large linear expansion coefficient therein, and vice versa. The body 200 is bent in the direction of the first body 100 in a tendency to shrink the anti-slip layer 50 of the second body 200 by stacking the anti-slip layer 50 having a large coefficient of linear expansion on its outer side.

In other words, the first body 100 is collected inward and the second body 200 is opened outward due to cold and non-high heat beverages, and unnecessary gaps are generated between the first and

second bodies

100 and 200 by this principle. It provides the property to prevent this and maintain a close proximity between the two.

As described above, the first body 100 of FIG. 1 extends in a C-shape with an opening therebetween, that is, in an open circular shape or a shape close to it, in the present invention. Both ends of the periphery are referred to as first and second ends 101 and 102, and a portion connecting the first and second ends 101 and 102 is referred to as a connecting portion 103.

The first end 101 extends from about 5 to 25 mm, preferably about 10 to 20 mm, based on the so-called 'virtual X axis' extending in the horizontal direction from the center of the first body 100 .

The second end 102 is an opposite end of the first end 101, extending from the center of the first body 100 to about 45 to 60 mm, preferably about 50 to 60 mm, based on the virtual X axis It is done. Due to this, the first body 100 has an extended structure of 230 to 265 mm (ie, the angle of the opening is 95 to 130 mm slightly above the right angle with respect to the center).

Of course, the extension structure of the first body 100 is not limited to the above-described angular base, but according to the first body 100, the second body takes a further extension from each end than the semicircle shape based on the cross-section. It is possible to secure a sufficient physical area to cover the body 200. At this time, the second body 200 may also be configured as described above.

Additionally, the thickness of the first body 100 may be configured to be gradually thinned from the first end 101 to the end of the second end 102.

* Specifically, based on the vertical line (virtual Y axis) extending vertically outward from the center of the first body 100 based on the planar view of the first body 100, the virtual at the first end 101 The same thickness is achieved up to the point A contacting the Y-axis, and when this point (A) is used as the starting point and the end of the second end 102 is called the ending point, it gradually becomes thinner from the corresponding point, that is, from the starting point (A) to the ending point. You can take a rescue.

Specifically, when the thickness of the starting point (A) is called a and the thickness of the ending point is called b, a may have a thickness of 15 to 25 times that of b, preferably 2 times.

According to this configuration, the first body 100 is provided with relatively good elasticity compared to when made of the same thickness, and at the same time, the second body 200 is pushed toward the second end 102 which is relatively thin. Deformation of the one end 101 compensates for the problem that coupling / release with the second body 200 is not easy while inducing only the deformation of the second end 102 while preventing as much as possible.

In other words, by strengthening the elasticity in one direction by the sequential thinning structure of the first body 100, the ease of detachment with the second body 200 centered on this region is reinforced, but it is too thin. 2 provides a characteristic that reinforces the problem that the body 200 is easily detached or the first body 100 is easily deformed.

Specifically, when the radius of curvature of the connecting portion 103 is R1, the radius of curvature of the first end 101 is R2, and the radius of curvature of the second end 102 is R3, the numerical value consists of R1> R2> R3. have.

The radius of curvature is the reciprocal of the curvature, that is, the connection portion 103 has the most gentle curvature, and the first end 101 is larger than the curvature of the connection portion 103 but smaller than the curvature of the second end 102. do.

According to this structure, the first end 101 based on the connecting portion 103 is extended to be rounded to the center of the first body 100, and thus serves to hold the second body 200 more firmly. In charge.

In addition, since the length of the first end 101 is shorter than the second end 102 as mentioned in FIG. 6, the second body 200 enters when the curvature radius of the second end 102 is less than or equal to / There is a problem that becomes difficult to release, so to solve this, the radius of curvature of the first end 101 is formed larger than the radius of curvature of the second end 102.

In addition, since the second end 102 is longer than the extension length of the first end 101 and may have reinforced self-elasticity, it has a radius of curvature that is smaller than that of the first end 101 and is relatively lower than that of the first end 101. It can extend sharply toward the center of the first body 100 and exert better and stronger bonding force while pressing the second body 200 more tightly and tightly when combined with the second body 200.

As described so far, the configuration and operation of the prefabricated straw using the surface tension of the beverage according to the present invention are expressed in the above description and drawings, but this is merely an example and the spirit of the present invention is not limited to the above description and drawings Of course, various changes and modifications are possible without departing from the technical spirit of the present invention.

Claims

As a prefabricated straw using the surface tension of drinks,

A first body made of a semi-cylindrical bendable material;

A second body formed of a semi-cylindrical bendable material, both ends of which enter the opening side of the first body and form a cylindrical shape together with the first body;

A hollow which is a passage through which beverages pass in the first and second bodies;

Characterized in that it comprises a; a water film that is caused by the surface tension of the beverage remaining between the opposite surfaces of the first and second bodies, and sticking the opposite surfaces of the first and second bodies.
According to claim 1,

As a prefabricated straw using the surface tension of drinks,

A multi-folded C-shaped first body;

A multi-stage bent C-shape, wherein both ends enter the opening side of the first body and form a closed body along with the first body;

A hollow which is a passage through which beverages pass in the first and second bodies;

It is caused by the surface tension of the beverage remaining between the opposing surfaces of the first and second bodies, characterized in that it comprises a water film for adhering the opposing surfaces of the first and second bodies, a prefabricated straw.
The method according to claim 1 or 2,

On the side facing the second body from the first body,

An indent protruding toward the second body is formed,

In the state that the indent is made of at least one set along the circumference of the first body. Prefabricated straw, characterized in that formed in a plurality of sets at regular intervals along the longitudinal direction of the straw.
The method according to claim 1 or 2,

Prefabricated straw, characterized in that at least one of the opposing surfaces of the first and second body is formed with an indentation groove in a certain depth.
The method of claim 4,

Prefabricated straw, characterized in that the indentation groove includes a viscous body containing at least one of xanthan gum, locust bean gum, gum arabic, guar gum as an active ingredient.
The method of claim 5,

Inside the recessed groove,

A slit pierced along the longitudinal direction is further formed,

The viscous body,

10 to 80% by weight of total viscous body, 10 to 80% by weight of xanthan gum, 10 to 80% by weight of locust bean gum, and 1 to 10% by weight of dicyano pyrazine (Dicyano pyrazine), the first functional material, are accommodated in the slit Characterized in that, prefab straw.
The method of claim 5,

Inside the recessed groove,

A slit pierced along the longitudinal direction is further formed,

The viscous body,

In the slit, with 30 to 60% by weight of xanthan gum, 30 to 60% by weight of locust bean gum, and xylitol containing 5 to 15% by weight of a second functional material containing chitosan as an active ingredient, based on total weight of viscous body Prefabricated straw, characterized in that accommodated.
According to claim 1,

On at least one of the opposing surfaces of the first and second bodies,

Prefabricated straw, characterized in that the anti-slip layer made of a material having a larger coefficient of friction than the opposite surfaces of the first and second bodies.
The method of claim 8,

The slip prevention layer,

It is laminated on each of the opposing surfaces of the first and second bodies,

Characterized in that it is made of a material larger than the coefficient of linear expansion of the first and second bodies.

Made, prefab straw.
According to claim 1,

The first body,

A first end extending from a first portion contacting the virtual X axis horizontally extending from the center to one side, and a second end extending from the portion contacting the virtual X axis opposite to the first portion to the other end, and , Consisting of a connecting portion connecting the first and second ends,

It is made of the same thickness from the center of the first body to the connection point abutting the virtual Y-axis extending vertically from the center of the first end,

The prefabricated straw, characterized in that the thickness gradually increases as it extends from the point abutting on the virtual Y-axis to the second end.
According to claim 1,

The first body,

A first end extending from a first portion contacting the virtual X axis horizontally extending from the center to one side, and a second end extending from the portion contacting the virtual X axis opposite to the first portion to the other end, and , Consisting of a connecting portion connecting the first and second ends,

The radius of curvature of the first end,

Prefabricated straw, characterized in that larger than the radius of curvature of the second end, smaller than the radius of curvature of the connecting portion.