JP2020165033A - Woven string - Google Patents

Abstract

To provide a string-like member having all elements such as good durability, good flexibility, ease of binding, ease of manufacturing, good designability, and good recyclability.SOLUTION: Woven strings 1A and 1B are obtained by twisting machine-made paper into a round string-like shape to form a paper string 10, and then weaving a plurality of paper strings as warps with a weft. Preferably, the machine-made paper is a kraft paper, and the weft is a cotton yarn 20, a water soluble or water-disintegrable yarn, a biodegradable yarn, or a heat-bonding yarn.SELECTED DRAWING: Figure 1

Description

The present invention relates to a woven string, and is particularly suitable for use as a handle for a paper bag or a rice bag.

Conventionally, for example, as shown in Japanese Patent Application Laid-Open No. 10-245044 (Patent Document 1), a string-shaped member of any material is used as a handle in a paper bag body assembled in a bottomed tubular shape with an opening at the top. The attached hand-held paper bag is widely used mainly in retail businesses such as department stores and clothing stores, for example, for transporting products purchased by consumers.

Paper bags used in such retail stores have durability that does not easily break even if heavy or bulky products are put in them, and appeal to not only the consumers who purchased them but also the consumers around them. Not only is it easy to produce because the material is cheap and easy to manufacture, but it is also easy to dispose of after use and recycle from the viewpoint of environmental consideration. Factors such as recyclability that can be used are required at the same time.

As mentioned above, the paper bag is mainly composed of two parts, the bag body and the handle, and most of the area is occupied by the bag body, but the handle is also important to satisfy each of the above elements together with the paper bag. It plays a role, and in particular, the handle is an important factor that affects the usability of the paper bag because it is the part that the consumer directly grips.

For example, when using a flat paper string made by folding a long piece of paper in the width direction or a round paper string made by twisting a long piece of paper into a single piece, it can be easily opened and untwisted for durability. The sexuality is easily impaired, and the appearance of luxury is also impaired. When using a synthetic resin handle, although it is durable, the inorganic nature is emphasized and it lacks the beauty and luxury of the appearance, it bites into the hand and the usability is poor, and the handle and the bag body are connected. Since the materials are different, it is inconvenient because it is necessary to separate the handle and the bag body for reuse.

In addition, when a so-called paper band in which paper strings are arranged in parallel and integrated with an adhesive is used, it cannot be reused as used paper together with a paper bag because an adhesive containing PVA or the like as a main component is used. In addition, there is a problem that the usability is poor due to the hardness of the adhesive.

Furthermore, the paper band has a process of feeding out the paper string, a process of applying an adhesive to the paper string, and a process of arranging the paper strings closely and drying them. All of the dryers that wind and dry the paper require heat sources such as thermal power and electric power to raise the temperature. In particular, the dryer rotates at an average temperature of 120 to 140 degrees and an average speed of 120 to 150 rpm. There is a risk of injury, and not only large-scale manufacturing equipment but also consideration for ensuring safety is required, and there is a problem that it is not suitable for small lot production, so we can respond to requests such as small lots and many kinds of designs. difficult.

Further, examples of a rice bag sold by encapsulating rice and a string-like member used therein are shown in JP-A-2017-137589 (Patent Document 2) and JP-A-2017-154741 (Patent Document 3). Things are known.

Such rice bags have the same structure from relatively small capacities such as 1 kg and 3 kg to large capacities such as 10 kg and 30 kg, and the center is fixed below the opening, and the paper string is parallel. Using a string-shaped member such as a paper band that is lined up and integrated with an adhesive, the opening of the rice bag containing rice is folded back several times to seal it, and both ends of the string-shaped member are tied to form a handle. Is.

As described in Patent Documents 2 and 3, the string-shaped member used as the handle of the rice bag is required to have strength and flexibility to withstand binding and not to cause pain to the fingers when carrying.

The inventions described in Patent Documents 2 and 3 are considered to have a certain effect on strength and flexibility, but they are made into a flat string by adhering with an adhesive in the same manner as a conventional paper band. Since it forms a string-shaped member, it cannot be reused as used paper together with a paper rice bag, and because of the hardness of the adhesive, it lacks flexibility and is difficult to bind.

Therefore, it has durability, which is a prerequisite for holding a paper bag or a handle for a rice bag, and can satisfy each element including flexibility, design, ease of production, and recyclability. There was a strong demand for string-like members with rich properties.

JP-A No. 10-245044 Japanese Unexamined Patent Publication No. 2017-137089 Japanese Unexamined Patent Publication No. 2017-154741

The present invention is not only a highly durable string, but also has flexibility, so it is easy to grip, easy to bind, difficult to unravel, can be produced with an inexpensive material, and does not require dangerous work due to high heat. We provide string-shaped members that are suitable for small lot production, have excellent design, and have all the elements such as recyclability that can be reused as used paper without the need to separate them from the paper bags and rice bags to be used. That is the issue.

The weaving string of the present invention made to solve the above problems is formed by twisting Western paper into a single round string to form a warp and weaving the warp with a weft. It is characterized by.

According to the woven string of the present invention, a plurality of paper strings made by twisting Western paper into a single round string are used to form a warp, and the warp is woven by a weft, which is an inexpensive material and an adhesive. Demonstrates strength and durability equal to or higher than that of conventional string-shaped members such as paper bands, and has a woven structure that makes it easy to follow kinks in diagonal directions, making it highly flexible and versatile. It is possible to provide a string-shaped member with a certain shape, which is suitable for use as a handle for a paper bag or a rice bag, and particularly when used as a handle for a heavy rice bag, the burden on the fingers is significantly increased. It can be mitigated.

Further, when the Western paper is kraft paper, in addition to the fact that the material is inexpensive and easy to manufacture, the kraft paper has appropriate tension and strength. Therefore, for example, the woven string of the present invention can be used in a paper bag. When attached to the paper bag body as a handle, the tension makes it a very easy-to-grasp handle that stands on its own upwards, and when the woven string of the present invention is attached to the rice bag body as the handle of the rice bag. Due to its strength, it can function as a handle without losing the weight of the rice content, while firmly fastening the opening.

Furthermore, when the weft is cotton, it can exert its strength without significantly increasing the width and thickness of the entire woven string, so it feels good to use even for consumers with small hands, especially when used as a handle for paper bags and rice bags. It is good, looks good, and is superior in terms of availability and cost compared to, for example, chemical fiber threads, and the entire paper bag or rice bag to which the woven string or woven string is attached is used as used paper as it is. It can also be recyclable and can be reused.

Alternatively, when the weft is a water-soluble or hydrolyzable thread, it can be provided with recyclability so that it can be reused as used paper as it is, as in the case where the weft is a cotton thread.

Alternatively, if the weft is a biodegradable thread, it is suitable for applications such as outdoor civil engineering work and agricultural work strings, and it is decomposed by microorganisms in the natural world after use including paper strings to generate dust. Can be used without.

Alternatively, when the weft is a yarn having heat adhesiveness, it is possible to bond and fix the paper strings arranged in parallel by applying heat after weaving the woven string, so that the whole is integrated. It can be used as a string.

According to the woven string of the present invention, a plurality of paper strings made by twisting Western paper into a single round string are used to form a warp, and the warp is woven by a weft, for example, for a conventional paper bag or a rice bag. Compared to string-shaped members such as paper flat cords, paper round cords, paper bands or synthetic resins used for the handles of paper, it is superior in that it is hard to bite into the hand due to the flexibility due to the woven structure and the flexibility due to the absence of adhesive. It has a feeling of use, durability, ease of production without dangerous work, adaptability to small lot production, and there is no need to disassemble the paper bag etc. and the handle part after use and dispose of it as it is. It is possible to provide a versatile string-shaped member that can be reused as used paper, is convenient for consumers, and has all the elements such as excellent recyclability from the viewpoint of environmental consideration.

In particular, when the woven cord of the present invention is compared with the paper band, it becomes clear that the flexibility due to the woven structure and the flexibility due to the absence of an adhesive exhibit a better usability, and the paper band. Has a problem that the adhesive residue applied to the surface is generated by rubbing or bending, and a problem that it is vulnerable to tearing or cracking, but the woven cord of the present invention is an excellent invention that does not cause the above problem.

The figure which shows the preferable embodiment of this invention. The woven string 10A shown in FIG. 1 is shown in (a) a view seen from the long side 11 side and (b) a view seen from the long side 12 side. The schematic diagram which shows an example of the manufacturing process of the paper string in this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a preferred embodiment of the present invention, in which a plurality of paper strings 10 made by twisting long Western paper are used, and the paper strings 10 are arranged in parallel as warp threads using a weaving machine, and cotton threads are used. It is a woven string woven with 20 as a weft, and shows a woven string 1A using 6 paper strings 10 and a woven string 1B using 12 paper strings 10.

Since the width of the resulting woven string is determined by the number of 10 paper strings that are the warp threads, increase the number of 10 paper strings when manufacturing a wide woven string, and conversely, increase the number of paper strings when manufacturing a narrow woven string. Decrease the number of 10.

In the present embodiment, one cotton thread 20 is used as the weft, and the cotton threads 20 are folded back at the long sides 11 and 12 corresponding to both edges of the plurality of paper strings 10 arranged in parallel, and further one of them. On the long side 11, the cotton thread 20 is folded back to form a loop, and the loop portions 21 are knitted with each other (weft entanglement treatment) to form the ears 22 in the length direction of the woven string. In addition to the advantage that the weft threads 20 can be appropriately spaced and the weft threads are less likely to fray, there are also advantages such as an accent on the appearance (see FIG. 2).

The cotton thread 20 may be simply folded back on the long sides 11 and 12 corresponding to both edges.

The weaving string can be used by weaving the warp and the weft into a long length with a loom, storing the string, and cutting the weft into a predetermined length according to the purpose of use.

In addition, the length to be manufactured can be set arbitrarily, and the loom can be manufactured independently, and since large-scale manufacturing equipment and preparation unlike conventional paper bands are not required, small lot production can be easily supported. In addition to being able to do so, the risk of endangering workers can be avoided because no heat source is used.

When the woven cords 1A and 1B according to the present embodiment are used as the handles of the paper bag, the woven cords 10 are not adhered to each other and are fastened by the cotton thread 20, so that the woven cords 1A and 1B have cushioning properties. There is an advantage peculiar to the woven string that the added weight is dispersed and it is difficult to bite into the hand.

In addition, the woven cords 1A and 1B form a knot when used as a handle of the rice bag, but at that time, the paper strings 10 arranged in parallel are not adhered to each other and are fastened by the cotton thread 20. Therefore, it is possible to finely adjust the length of the paper string 10 on the inner peripheral side and the outer peripheral side when bending three-dimensionally, and there is an advantage peculiar to the woven string that the knot is hard to be untied.

As the paper string 10, any paper string can be used regardless of the material and the presence or absence of the coating, but in the embodiment of the present invention, the long kraft paper 2 is twisted to form a single round string. I am using a paper string (see Fig. 3).

Since the woven string of the present embodiment consists only of a paper string made of paper and a cotton thread made of cotton, for example, even when the paper bag or rice bag using the woven string of the present embodiment as a handle is no longer needed, it remains as it is. It is possible to recycle the entire paper bag or rice bag as used paper.

In particular, by using a paper string made by twisting kraft paper as a warp as in the present embodiment, appropriate tension is exhibited when the woven string is used. For example, the woven string of the present embodiment can be used in a paper bag. When attached to the bag body as a handle, the tension makes it a very easy-to-grasp handle that stands on its own upwards.

In the embodiment shown in FIG. 1, a plain weave is used as the weave, but other weaves such as twill weave and satin weave may be used, and the number of warp threads and weft threads to be used is also presented. Of course, the number is not limited.

In the present embodiment, since the weft thread used is the cotton thread 20, the cotton thread 20 is thin and flexible, and can exhibit strength without significantly increasing the width and thickness of the entire woven string. Especially when used as a handle for paper bags and rice bags, not only is it comfortable to use even for consumers with small hands, but it is also excellent in terms of material availability and cost, and it can be used as it is for recycling used paper. , It can be a woven string with high recyclability.

Also, regarding the design, there are various types of warp threads, such as white, which are made by twisting beige (brown) kraft paper, which is the most common color, and have a certain thickness. By combining colored cotton threads as weft threads, it is possible to easily express a color pattern as compared to a paper band in which paper strings are arranged in parallel and integrated with an adhesive, and the color and weave of the threads are further changed. It is possible to change the design in various ways just by itself, and it is also possible to provide woven strings with various designs in small quantities by small lot production, so it will be a woven string with rich design as a handle for paper bags, rice bags, etc. be able to.

Further, when the weft yarn to be used is, for example, a water-soluble or water-decomposable yarn, it can be directly put out for waste paper collection and recyclable like the woven string of the present embodiment using the cotton yarn 20. It has the advantage that it can be a string-like member having a high quality.

Further, when the weft yarn used is, for example, a biodegradable yarn, when this woven cord is used for outdoor civil engineering work or agricultural work, for example, the paper cord 10 is decomposed by microorganisms in the natural world after use. This has the advantage that it can be used as a string-shaped member that does not generate dust.

Further, when the weft thread to be used is, for example, a thread having heat adhesiveness, it is possible to bond and fix the paper strings 10 arranged in parallel to each other by applying heat after weaving the woven string. This woven string can be used as a substitute for, for example, a PP band (polypropylene band) for fastening a cardboard, and has an advantage that it can be used as an environment-friendly string-like member with a reduced amount of plastic used.

As described above, according to the woven string of the present invention, a plurality of paper strings obtained by twisting Western paper into a single round string are used to form a warp, and the warp is woven by a weft, for example. Compared to string-shaped members such as flat paper strings, round paper strings, paper bands or synthetic resins that are conventionally used for handles for paper bags and rice bags, the flexibility of the woven structure and the flexibility of not using adhesives make the hands more flexible. It has an excellent usability such as being hard to bite into the paper, durability, ease of production without dangerous work, adaptability to small lot production, and it is necessary to disassemble the paper bag and the handle part after use and dispose of them separately. To provide a versatile string-shaped member that can be reused as waste paper as it is, is convenient for consumers, and has all the elements such as excellent recyclability from the viewpoint of environmental consideration. Can be done.

In particular, when the woven cord of the present invention is compared with the paper band, it becomes clear that the flexibility due to the woven structure and the flexibility due to the absence of an adhesive exhibit a better usability, and the paper band. Has a problem that the adhesive residue applied to the surface is generated by rubbing or bending, and a problem that it is vulnerable to tearing or cracking, but the woven cord of the present invention is an excellent invention that does not cause the above problem.

1A, 1B woven string, 2 kraft paper, 10 paper strings, 11,12 long sides, 20 cotton threads, 21 loops, 22 ears

Claims (6)

A woven string characterized in that a plurality of paper strings formed by twisting foreign paper into a single round string are used to form a warp, and the warp is woven by a weft. The woven string according to claim 1, wherein the Western paper is kraft paper. The woven string according to claim 1 or 2, wherein the weft is a cotton thread. The woven cord according to claim 1 or 2, wherein the weft yarn is a water-soluble or water-soluble yarn. The woven cord according to claim 1 or 2, wherein the weft yarn is a biodegradable yarn. The woven cord according to claim 1 or 2, wherein the weft yarn is a yarn having heat adhesiveness.