JPH02265862A - Wound thread streak object - Google Patents

Abstract

PURPOSE:To prevent damage of a thread streak even in a shortened work time with no generation of thread fall-off during transportation by fixing the outermost layer end thread part of a rewound thread streak object rewound up to a cylindrical bobbin to a rewound thread surface by a seal having adhesiveness. CONSTITUTION:The outermost layer end thread part of a rewound thread streak 2 rewound on a cylindrical bobbin 1 is fixed to a rewound thread surface by a seal 4 having adhesiveness. This adhesive seal 4, includes an adhesive agent only applied to its side brought into contact with an object to be adhesively stuck, a material having flexibility is used because of curved surfaces of the rewound thread streak 2 also its thickness is small due to a similar reason. And it is important that the adhesive agent has adhesive force of a degree not generating natural exfoliation, when the seal 4 is stuck, further not generating surface twill disorder and napping in the rewound thread streak 2 when the seal 4 is peeled off. The rewound thread streak 2 has its winding end subjected to a suitable punch winding 3, so that the end thread can be easily detected and taken out.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to end yarn processing of a wound yarn.

[Prior art]

Normally, continuous yarn is wound onto a bobbin and
It is supplied as a wound yarn for cheese, etc. Fixing the end yarn of a wound yarn is important for packaging after yarn production, preventing yarn disturbance during transportation, ease of handling when using the yarn in post-processing, and ease of work. Efforts have been made.

Conventionally, the outermost end yarn portion of a wound yarn has been fixed by tying the end yarn, or by fixing the end yarn to the bobbin with an adhesive sticker.

[Problem to be solved by the invention]

A wound yarn product whose end yarns are tied and fixed is less likely to be disturbed during packaging or transportation, but it is difficult to find and remove the end yarns when using them in the next process, which reduces work efficiency, especially for fine denier yarns. The drawback is that it gets extremely bad.

In addition, if the end yarn is fixed to the bare part of the bobbin where the yarn is not wound with an adhesive seal, the yarn is likely to become disordered due to twill falling, especially in cheese-shaped wound yarn products. Because of this problem, it is currently only used for wound yarns with tapering, such as burns and piconic cheese.

When using winding products with end yarn fixed to the bobbin, the seal may come off when inserted into the hole of the perforated board for fixing the bobbin during box packaging, or when the yarn is taken out for use. If you grip the end of the bobbin where there is no winding thread to avoid damaging the thread, it may cause the seal to peel off. Therefore, there is a problem in that the gripping and handling of the wound yarn material is restricted, resulting in poor workability.

Another method of fixing the end threads is to sandwich the end threads between paper and wrap the entire wound yarn in vinyl, but this method has the disadvantage that handling efficiency in the next step is extremely poor.

All of these methods still have the problem of improving handling efficiency and yarn damage.

[Means to solve the problem]

As a result of intensive research in order to solve the above problem R, the present inventors found that
The following invention was achieved.

That is, the present invention relates to a winding system article, characterized in that the end yarn portion of the outermost layer of the winding yarn wound on a cylindrical bobbin is fixed to the surface of the winding yarn with an adhesive seal. .

The adhesive seal referred to in the present invention is one in which adhesive is applied only to the side that contacts the adhered object, and there are no particular restrictions on the material, and the purpose can be achieved even if paper, film, cloth, etc. are used. However, since the surface of the wound yarn is curved, a flexible material is preferable.
For the same reason, the thickness of the seal is preferably thinner.

The adhesive must have an adhesive strength that does not cause natural peeling when the sticker is attached, and must have an adhesive strength that does not cause the surface of the wound yarn to be disturbed or fluffed when the sticker is removed. The important and preferred range of adhesive force F is 40
g≦F≦130g, more preferably 60g≦F
≦8"Og.

If the adhesive force F is less than 40 g, the seal will naturally peel off from the wound yarn material, and if it exceeds 130 g, fuzz and twill disturbance will occur when the seal is peeled off, which is not preferable.

Synthetic rubber adhesives, urethane adhesives, acrylic adhesives, and other copolymer adhesives can be used, but they do not change in a short period of time,
In addition, the object of the present invention can be achieved as long as the adhesive force does not leave adhesive residue and is adjusted within a preferable range.

The size of the sticker is 0.9d~9 for ease of peeling during use.
It is preferably about 4, but is not particularly limited, and the shape of the seal does not need to be particularly limited, and may be any shape such as square, rectangle, circle, or ellipse.

The adhesive may be applied to the seal by either full-surface application or partial application, but it is preferable to have an unapplied portion at the end of the seal from the viewpoint of ease of peeling off during use.

The sticker may be pasted at any position on the surface of the cylindrical outer layer of the wound yarn, but it is preferable to affix the sticker at a position close to the end yarn in order to securely adhere and capture the end yarn with the seal. A reliable method for fixing the end threads for this purpose is to use a device that detects the end threads, takes out the end threads, and then affixes a seal.

It is preferable to perform appropriate punch winding at the end of the winding of the wound yarn to make it easier to detect and take out the end yarn. ° and
This refers to multiple layers of winding at the same location.

The threads used in the present invention include recycled cellulose fibers such as cupra rayon and viscose rayon, and synthetic fibers such as polyester, polyamide, polyacrylonitrile, polypropylene, and polyurethane, among which fusible polyurethane fibers are most preferred.

Even though the thread form is multifilament, when removing the seal,
There are no particular restrictions on the material as long as it does not cause fluff, but fused filaments, multifilaments with high cohesiveness, or monofilaments are preferred.

The thickness of the thread is also not particularly limited, but for polyurethane it is most preferably from 5 denier to 4000 denier.

The term "wound yarn" as used in the present invention refers to a yarn wound into a cheese, burn, or cone shape.

In the wound yarn product in which end yarns are fixed to the yarn surface with adhesive stickers according to the present invention, since the stickers are attached to and captured at the end yarns, it is easy to find the end yarns. Further, it is easy to take out the end yarn.

Furthermore, it is also possible to display the brand name, loft, etc. on the surface of the seal, and the packaging form can be selected as desired.

(Example) Hereinafter, this will be explained in detail using examples.

A sticker was prepared by applying an acrylic adhesive to one side of a 20 nm x 25 nus rectangular piece of paper with a thickness of 82 pm, except for 5 m of one long side. This sticker was attached to the surface of a wound yarn of 20 denier 3 filament ether polyurethane fiber, and evaluated after being left in an atmosphere at a temperature of 30° C. and a humidity of 60%.

To measure the adhesive force F, after leaving it for 24 hours, grasp the end of the seal where no adhesive was applied with the upper chuck of the Tensilon strength and elongation measuring device, grasp the wound yarn with the lower chuck, and calculate the stress required for peeling. was measured.

Peeling of the stickers was evaluated by visual observation of the condition of the five cheeses attached.

The evaluation of twill disorder is when the stickers of 5 pieces of cheese are removed (
The state of the twill on the surface layer of the conventional product with the thread ends tied (when the knot was untied) was observed, and it was determined whether the thread passed the test.

The fuzz was evaluated by observing the fuzz when the stickers of five cheeses were removed, and grading them into three grades.

The end yarn retrieval performance was evaluated by taking out the end yarns of 100 pieces of cheese and measuring the time required to unwind the fixed portion, and using this as an index. The results are summarized in Table 1.

Example 1.2 In Example 1, where the adhesive strength of the seal was 42 g, the sticker remained attached even after 30 days, and no damage to the winding yarn was observed after the sticker was removed. It was properly fixed. Adhesive force 130g
In Example 2, the adhesion was sufficient and there was no particular problem in the state of damage to the surface threads when the seal was removed. In both Examples 1 and 2, it was easy to take out the end threads, and the work efficiency was four times that of the conventional product in which the end threads were tied and fixed.

Comparative Example 1.2 The Comparative Example with a sticker adhesive force of 25 g completely peeled off after being left for 30 days, and the Comparative Example 2 with a sticker of 160 g did not peel off at all, but the adhesive force was too strong and the sticker was removed. After the thread was removed, the yarn was severely disordered, and fluff was observed due to filament breakage, and the required quality could not be met.

Comparative Example 3 (Conventional Product) A conventional product in which the end threads were tied and fixed was evaluated in the same manner as in the example. Although no 112 disorder or fluff was observed, it took time to find and take out the end yarns, and the evaluation result was that the workability was extremely poor.

(Margin below) Table 1 (note) Peeling of hoshir ○: The seal t-m remains open.

X-m- pasted sheet) Lrb'am and has come off.

**Twill disturbance O - - When the seal was removed, the twill of the surface yarn was not disturbed at all.

×...-When the sticker was removed, the twill of the surface yarn was noticeably disordered.

***Fuzz 0---When the sticker is removed, there is no fuzz at all.

8--When I peeled off the sticker, the hair was still intact.

×--When the sticker was removed, there was a noticeable amount of fuzz.

〔Effect of the invention〕

In the wound yarn article of the present invention, in which the end yarn portion is fixed to the surface of the wound yarn with an adhesive seal, the yarn does not fall off during transportation, and the end yarn can be easily removed by peeling off the seal. This allows the work time to be significantly reduced. Furthermore, when the seal is removed, there is no twill disturbance or fuzz on the thread surface, and no damage to the thread is caused.

In addition, it is also possible to display markings on the surface of the seal, and the packaging form can be selected as desired.

[Brief explanation of drawings]

FIG. 1 shows a cheese-shaped wound yarn product in which the end yarn is fixed to the surface of the wound yarn with a seal. 1---------Bobbin 2---Take-up thread 3---Bunch winding 4---Adhesive seal patent applicant Asahi Kasei Corporation

Claims (1)

[Claims] 1. A wound yarn article, characterized in that the end yarn portion of the outermost layer of the wound yarn article wound on a cylindrical bobbin is fixed to the surface of the wound yarn with an adhesive seal.