KR102513305B1 - Knitted bag and its manufacturing method - Google Patents

Abstract

The present invention relates to a knitted bag and a manufacturing method thereof, and more specifically to a knitted bag which is knitted with fiber to be lightweight and easy to carry and improves convenience of use, and in particular prevents the bottom from sagging or stretching through structural improvements so that an appearance does not deform when items are placed therein and a manufacturing method thereof. In order to solve the problems, the present invention provides the knitted bag which is knitted with fiber to be lightweight and easy to carry and improves convenience of use, and in particular prevents the bottom from sagging or stretching without a bottom plate by securing sturdiness of the bottom itself through structural improvements so that an appearance does not deform when items are placed therein and the manufacturing method thereof. The manufacturing method of the knitted bag comprises: a knitting process; a heating process; a bag body forming process.

Description

Knitted bag woven by knitting and its manufacturing method {Knitted bag and its manufacturing method}

The present invention relates to a knitted bag woven by knitting and a method for manufacturing the same, and more particularly, by knitting fibers as a material, it is lightweight and convenient to carry, improving convenience of use, and in particular, preventing sagging or stretching of the bottom through structural improvement. It relates to a knitted bag woven with a knitted fabric that prevents the appearance from being deformed when an object is put therein, and a method for manufacturing the same.

In general, a knitted bag can be continuously manufactured in a knitting machine through a fiber material, and the manufactured knitted bag is light and convenient to carry, and furthermore, it can implement various designs, so it has been widely used in recent years.

However, while such a knitted bag has the above-mentioned advantages, due to the nature of the textile material, when storing goods, the bottom part droops or hangs down, so the exterior design is not excellent.

In order to solve these disadvantages, a knit pleated bag woven with a knitted base that can be worn under Korean Utility Model Publication No. 20-2022-0000823 (published on April 14, 2022) has been proposed.

Referring to this publication, it is proposed to overcome the disadvantage of sagging or sagging bottom part, and to overcome the above disadvantage by proposing a structure capable of mounting a bag bottom plate. Of course, if the bottom plate of the bag can be attached, the durability of the bottom itself can be secured, but the addition of a process for attaching the bottom plate reduces manufacturing efficiency and also causes an increase in manufacturing cost.

The present invention has been made to solve the above problems, and it is lightweight and portable by knitting fibers as a material to improve the convenience of use. An object of the present invention is to provide a knitted bag woven with a knitted fabric that prevents the appearance from being deformed when items are put in by preventing stretching, and a method for manufacturing the same.

In order to achieve the above object, the present invention knits yarn through a knitting machine to continuously knit the front wall portion, the bottom portion, and the rear wall portion, while standing up the front and rear wall portions around the bottom portion and folding both lower ends inward to The bottom is sewn, and both ends facing the front and rear walls are sewn to form a bag body having a storage space therein. By melting the low-melting yarn, the bottom part becomes solid, so that the bottom part does not sag or deform even when objects are stored, so that the bottom plate is not required. It is characterized in that it is configured to be knitted to form a section so that the lower end of the front and rear wall parts can be easily sewn to the attachment section.

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Preferably, the temperature for heating the bottom part is between 200 and 300 degrees, characterized in that it is heated for 2 to 3 seconds.

In addition, a knitting process of supplying yarn to a knitting machine to continuously knit a front wall portion, a bottom portion, and a rear wall portion, and knitting by supplying a low-melting yarn together with the yarn when knitting the bottom portion; After the knitting process, a heating step of heating the bottom part to a high temperature to melt the low-melting yarn to make the bottom firm so that the bottom part does not sag or deform even when objects are stored, eliminating the need for a bottom plate; And after the heating process, the front and rear wall parts are erected around the bottom part, and both lower ends are folded inward, and sewn to the edges of the bottom part to be fixed, and both ends of the front and rear wall parts facing each other are sewn to form a storage space. It is manufactured, including a forming bag body forming process; in the knitting process, when knitting the bottom part, knitting is performed to form an attachment section knitted only with yarns without low melting point yarns at both edge portions, so that the lower ends of the front and rear wall parts are formed. It is characterized in that it is manufactured so that it can be easily sewn to the attachment section.

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Preferably, in the heating process, the temperature for heating the bottom part is between 200 and 300 degrees, characterized in that it is prepared by heating for 2 to 3 seconds.

According to the present invention, as the bag is knitted with yarn as a medium, it is light and convenient to carry, so the convenience of use is improved, and furthermore, when knitting the bottom, the low melting yarn and yarn are knitted together, so that the low melting yarn at high temperature is melted and hardened to show the effect of preventing the bottom from sagging or deforming without a separate support.

1 is a front view showing a knitting bag woven by knitting according to a preferred embodiment of the present invention.
Figure 2 is a development view showing a bag body according to a preferred embodiment of the present invention.
Figure 3 is a schematic perspective view showing a process of sewing a bag body according to a preferred embodiment of the present invention.
Figure 4 is a conceptual diagram showing a manufacturing process of a knitting bag woven by knitting according to a preferred embodiment of the present invention.

Hereinafter, a knitted bag woven with the knitting of the present invention and a manufacturing method thereof will be described in more detail with reference to the accompanying drawings.

Prior to this, the terms or words used in this specification and claims should not be construed as being limited to the usual or dictionary meaning, and the inventor appropriately uses the concept of the term in order to explain his/her invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention, so at the time of the present application, they can be replaced. It should be understood that there may be many equivalents and variations.

Figure 1 is a front view showing a knitted bag woven according to a preferred embodiment of the present invention, Figure 2 is a development view showing a bag body according to a preferred embodiment of the present invention, Figure 3 is a preferred embodiment of the present invention It is a schematic perspective view showing the process of sewing the bag body according to the example.

Referring to Figures 1 to 3, the knitted bag 100 woven by knitting of the present invention is largely composed of a bag body 110 and a handle 120.

First, the bag body 110 is formed by knitting a yarn 130 to continuously knit the front wall portion 112, the bottom portion 116, and the rear wall portion 114, with the bottom portion 116 as the center. By standing up the front and rear wall parts 112 and 114, folding both lower ends inward and sewing them with the bottom part 116, and sewing both opposite ends of the front and rear wall parts 112 and 114 facing each other to form a storage space therein.

Meanwhile, when the bottom portion 116 is knitted, the low melting point yarn 140 is knitted together with the yarn 130, and the bottom portion 116 is heated at a high temperature to melt the low melting point yarn 140. It is preferable that the bottom portion 116 is configured so that the bottom portion 116 is not drooped or deformed even when objects are stored by inducing the bottom portion 116 to be strong.

Here, referring to FIG. 2, it is obvious that the bag body 110 may be knitted so that the yarns 130 are twisted with each other, as shown in some enlarged views, and may be knitted in various patterns depending on the knitting method. . And, as shown in some enlarged views of the bottom portion 116, it can be seen that the yarn 130 and the low-melting yarn 140 are knit together. When the bottom portion 116 where the low-melting yarn 140 is knitted together is heated at a high temperature, that is, between 200 and 300 degrees, preferably 230 degrees, for 2 to 3 seconds, the low-melting yarn 140 melts and the yarn 130 It is absorbed into and hardened while cooling to form a solid bottom portion 116. Eventually, in order to prevent sagging or deformation of the bottom portion 116, the low melting point yarn 140 is knitted together in the section where the bottom portion 116 is formed without the need to attach a separate bottom plate, and then the low melting point yarn 140 It is possible to form a knitted bag 100 that overcomes the disadvantages of the prior art by forming a solid bottom portion 116 by proposing an unexpected configuration that melts.

At this time, as can be seen in the partially enlarged view of FIG. 2, in the process of forming the bottom portion 116, an attachment section (d) knitted with only the yarn 130 without the low melting point yarn 140 is formed at both edges. It is more preferable to do so. Because, when the low-melting yarn 140 is knitted on the entire bottom portion 116, it is natural that the entire bottom portion 116 becomes hard when heated, and then it is not easy to sew the lower ends of the front and rear wall portions 112 and 114 thereafter. Because. Of course, even if the entire bottom portion 116 is solid, it is not impossible to sew, but since it is difficult to sew as hard as it is, an attachment section (d) knitted with only the yarn 130 without the low-melting yarn 140 is formed on both edges, It is desirable to make sewing easy. Here, a boundary point is formed at the edge of the bottom part 116 through a broken line so that the attachment section (d) and the other part can be distinguished.

Finally, the handle 120 may be formed by knitting integrally in the knitting process of the bag body 110, or may be separately manufactured after knitting the bag body 110 and attached by sewing. It is obvious that depending on the length of the handle 120, it can be formed as a type that can be worn on the shoulder.

As such, the knitting bag 100 of the present invention is light and convenient to carry as the bag is manufactured by knitting the yarn 130, and the convenience of use is improved, as well as the yarn 130 on the bottom part 116. After knitting the low-melting yarn 140, the low-melting yarn 140 is melted and hardened to provide a solid bottom 116 without a separate support. there is

Now, in the following, we will look at the manufacturing process of the knitted bag knitted with the above structure.

4 is a conceptual diagram showing a manufacturing process of a knitted bag knitted according to a preferred embodiment of the present invention.

Referring to FIG. 4, the knitted bag woven by the knitting of the present invention largely includes a knitting process 200, a heating process 210, and a bag body forming process 220.

First, in the knitting process 200, the yarn 130 is supplied to the knitting machine 300 to continuously knit the front wall portion 112, the bottom portion 116, and the rear wall portion 114, but the bottom portion When knitting (116), it is a process of knitting by supplying the low melting yarn 140 together with the yarn 130. At this time, as shown in some enlarged views, in the process of forming the bottom portion 116, it is preferable to form an attachment section (d) knitted with only the yarn 130 without the low-melting yarn 140 at both edges. do. In order to help understanding in dividing the attachment section (d) at the bottom part 116, the boundary point is shown by displaying a broken line, and the yarn 130 and the low-melting yarn 140 are knitted together on the left side of the boundary point. And, on the right side, it can be seen that only the yarn 130 is knitted alone.

On the other hand, the yarn 130 includes both artificial fibers and natural fibers that are commonly used, and representative examples of artificial fibers include nylon and polyester.

Next, the heating process 210 is a process of heating the bottom portion 116 through a heating plate 400 to melt the low-melting yarn 140 so that the bottom becomes firm. When heated between ~ 300 degrees and preferably at 230 degrees for 2 to 3 seconds, the low-melting yarn 140 melts and hardens while cooling to form a hard bottom portion 116 . At this time, when the low-melting yarn 140 is not attached to the edge of the bottom portion 116 (d) is formed, it is natural that other portions except for that portion become hard. On the other hand, the reason why the heating temperature of the bottom portion 116 in the heating process 210 is limited to between 200 and 300 degrees is because the melting point of the low melting yarn 140 melts at 200 degrees or more, but heating at a high temperature exceeding 300 degrees. When this is done, the temperature is preferably between 200 and 300 degrees because the low-melting yarn 140 melts excessively and makes the bottom part 116 harder to lose the feel of the fiber. In addition, the exposure time to the temperature is as short as 2 to 3 seconds, which is also for the same reason.

Finally, in the bag body forming process 220, the front and rear wall portions 112 and 114 are raised around the bottom portion 116, and both lower ends are folded inward and sewn to the edges of the bottom portion 116. This is a process of forming the bag body 110 having a storage space by fixing and sewing both ends of the front and rear wall portions 112 and 114 facing each other. At this time, when sewing the lower ends of the front and rear wall portions 112 and 114 and the bottom portion 116 to form an attachment section (d) without the low-melting yarn 140, when sewing in the attachment section (d) It can be sewn easily and the efficiency will be improved.

In addition, a handle attachment process of attaching the handle 120 to the top of the bag body 110 may be added, which is well known, and a separate description thereof will be omitted.

The foregoing has outlined rather broadly the features and technical advantages of the present invention in order to better understand the claims of the invention which will be described later. Additional features and advantages that form the scope of the claims of the present invention will be detailed below. It should be appreciated by those skilled in the art that the conception and specific embodiments of the invention disclosed may readily be used as a basis for designing or modifying other structures for carrying out purposes similar to the invention.

In addition, the concepts and embodiments of the present invention disclosed in the present invention serve as a basis for modifying or designing other structures to achieve the same purpose of the present invention, and such modified or changed equivalent structures by those skilled in the art are patented. Various changes, substitutions and modifications are possible without departing from the spirit or scope of the invention described in the claims.

100: knitting bag of the present invention 110: bag body
112: front wall portion 114: rear wall portion
116: bottom part d: attachment section
120: handle 130: yarn
140: low melting yarn 200: knitting process
210: heating process 220: bag body forming process
300: knitting machine

Claims (6)

Yarn is knitted through a knitting machine to continuously knit the front wall portion, the bottom portion, and the rear wall portion, but the front and rear wall portions are raised around the bottom portion, and both lower ends are folded inward to sew the bottom portion, and the front and rear wall portions are facing each other. Both ends are sewn to form a bag body with a storage space inside,
When knitting the bottom part, the low melting point yarn is knitted together with the yarn so that the bottom part is heated at a high temperature and the low melting point yarn is melted so that the bottom part becomes strong and the bottom part does not sag or deform even when items are stored, so a bottom plate is not required. However, when knitting the bottom portion, knitting is performed to form an attachment section knitted only with yarn without low-melting yarn on both side edges, so that the lower end of the front and rear wall portions can be easily sewn to the attachment section Knitting characterized in that Knitting bag woven with . delete According to claim 1,
The temperature for heating the bottom part is between 200 and 300 degrees, a knitted knitted bag, characterized in that the heating for 2 to 3 seconds. A knitting process of supplying yarn to a knitting machine to continuously knit a front wall portion, a bottom portion, and a rear wall portion, and supplying a low-melting yarn together with the yarn to knit the bottom portion when knitting;
After the knitting process, a heating step of heating the bottom part to a high temperature to melt the low-melting yarn to make the bottom firm so that the bottom part does not sag or deform even when objects are stored, eliminating the need for a bottom plate; and
After the heating process, the front and rear wall parts are erected around the bottom part, and both lower ends are folded inward, and sewn to the edges of the bottom part to be fixed, and both ends of the front and rear wall parts facing each other are sewn to form a bag body with a storage space. Manufactured, including; bag body forming process to do,
In the knitting process, when knitting the bottom part, knitting is performed to form an attachment section knitted only with yarn without low melting yarn on both side edges so that the lower end of the front and rear wall parts can be easily sewn to the attachment section. Method for manufacturing a knitted bag woven by knitting characterized in that. delete According to claim 4,
In the heating step, the temperature for heating the bottom part is between 200 and 300 degrees, a method for producing a knitted bag woven by knitting, characterized in that produced by heating for 2 to 3 seconds.

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