JPH0571032A - Conjugate cord yarn - Google Patents

Abstract

PURPOSE:To obtain tough conjugate cord yarn of the first twist structure which is conjugate yarn, having water absorptivity without any fraying and prepared by mutually twisting specific two kinds of filaments by fixing plural conjugate yarns with the final twist structure using plural heat fusible fibers. CONSTITUTION:Conjugate cord yarn mainly used for mops is conjugate yarn having the first twist structure prepared by mutually twisting (A) multifilament yarn composed of thermoplastic synthetic fiber such as a polyester and (B) multifilament yarn composed of cellulosic regenerated fiber such as viscose rayon. Plural conjugate yarns are fixed with the final twist structure using heat fusible fiber such as low-melting nylon filament yarn. The above-mentioned conjugate cord yarn is good in touch to objects by feeling of fall and excellent in content of a dust controlling agent and has enhanced value as a fashion material in appearance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite cord yarn having properties suitable for mops and floor mats. In particular, the present invention does not generate fiber scraps during use of the product or in washing for washing the product, and can be used for all applications including floor due to excellent water absorption, and is excellent for dust control agents. The present invention relates to a composite cord yarn having desirable characteristics such as impregnation property for mops.

[0002]

2. Description of the Related Art Conventionally, although a mop is a tool for capturing and removing dust, it has a drawback that it becomes a source of dust itself. This is because the raw material for the mop cord is mainly spun yarn of staple fiber including cotton, and the constituent short fibers thereof easily come out of the yarn as fiber scraps.

For example, a mop made of cotton yarn or spun yarn of a single component or a composite component was remarkable in dusting due to fiber scraps just by shaking. To cope with these drawbacks, a mop material made of long fibers made of synthetic fiber is disclosed in JP-A-61-61
No. 100222. However, unlike cotton, which is the existing main material, it has poor water absorption and is difficult to handle on the floor.In the case of synthetic fibers, the dust control agent does not penetrate the fibers well, and when used on glossy surfaces, dust control is difficult. There were drawbacks such as the adhesive transfer of the agent.

Attempts have also been made to mix different materials. If it has a spun yarn structure, the constituent fibers are completely mixed, and individual weaknesses are covered and the product has practicality. Therefore, such products are already known. A mixed spun yarn of cotton and synthetic fiber is known from JP-A-61-2946. Here, it is described to use a cotton yarn in which nylon, acrylic and the like are mixed and spun, and a yarn such as a mop obtained by melting a cotton yarn or a cotton yarn mixed with a synthetic fiber with a heat-adhesive synthetic fiber filament yarn is shown.

A mop cord yarn composed of a mixture of natural fibers and synthetic fibers is known from Japanese Patent Laid-Open No. 6100223. In this case, a combination of polyamide fibers and cotton yarn is disclosed. Further, as fiber examples, it is illustrated that other than cotton, cellulosic fibers such as rayon and acetate are used as raw materials, but it is shown that spun yarns of these staple fibers are used alone or in the form of a mixed yarn. ing. As in these examples, spun yarns of synthetic fibers and natural fibers or recycled fibers have been known for a long time, and mops thereof are widely distributed. However, unfortunately, there is still a drawback that it is a source of dust because it is spun yarn.

[0006]

SUMMARY OF THE INVENTION Therefore, the object of the present invention is to provide a mop which has water absorbency like cotton, which has been a main material in the past, is tough, does not cause fraying, and does not generate fiber scraps. It is an object of the present invention to provide a composite cord yarn that has the requirements that should be originally provided.

Further, the present invention provides a composite cord yarn mainly for mops, which has a good feeling to the object due to a feeling of falling, is excellent in containing a dust control agent, and has a high appearance value as a fashion material. It is also intended to be provided.

[0008]

In order to solve the above-mentioned problems, the present invention comprises a combination of multifilaments made of thermoplastic synthetic fibers and multifilaments made of regenerated cellulose-based fibers in the form of long fibers. It has been found that a composite cord yarn is preferable, in which these are compounded in a lower twist structure, and a plurality of the composite yarns are fixed in a first twist structure by heat fusion fibers.

The present invention will be described in detail below with respect to its preferred embodiments. In the present invention, two types of long fibers, that is, a multifilament made of a thermoplastic synthetic fiber and a multifilament made of a regenerated fiber of a cellulosic type are used as materials for the composite cord yarn. As a thermoplastic synthetic fiber,
Long fibers such as polyamide, polyester, polyvinyl alcohol, and polyvinyl chloride are used, but a preferred example is bulky polyamide fibers (so-called BCF nylon). As the yarn grade, a multifilament having a single yarn denier of 5 to 30 denier is preferable.

As the cellulosic regenerated fibers, long fibers such as viscose rayon and cupra rayon are used. As the yarn grade, a multifilament having a single yarn denier of 5 to 60 denier is preferable, and it is particularly preferable that it is larger than that used for the thermoplastic synthetic fiber from the viewpoint of washing resistance. The yarn denier of each of the thermoplastic synthetic fiber and the cellulosic regenerated fiber is determined in consideration of the final thickness which is desirable for use as a composite cord yarn and in use.
It is already 1000 to 5000 denier.

From the standpoint of achieving both water absorption and washing resistance as well as differences in heat shrinkage behavior and water elongation behavior, it is preferable that the balance between the two is not so uneven, and both are already 30 to 70%. Is desirable.

First, both yarn denier materials, which are determined in consideration of the thickness of the final composite cord yarn and the mixing balance of both materials, are compounded by twisting yarn. The twist number needs to be a predetermined twist number, but is preferably 100 times or more per m in order to suppress the protrusion of the cellulosic fiber due to the difference in shrinkage of both materials. Further, the interlaced yarn may be interlaced before the twisted yarn and then twisted.

A more preferred embodiment of the present invention is to supply the cellulosic fiber so as to be located at the center of the ply-twisted structure, so that the structure is substantially covered with the thermoplastic synthetic fiber.

Substantially the meaning of "coated structure" means that after the twist-fixing with the heat-sealing fibers, only the cellulosic fibers can be pulled out from the inside. Such a structure is achieved by making a difference in the supply rate of both materials at the time of twisting. That is, it is achieved by slightly increasing the supply of thermoplastic synthetic fibers. It can also be achieved by applying a tensile tension to the cellulosic fiber at the time of supply.

When the covering structure is adopted, since the cellulosic fibers are not substantially interposed at the fusion points, the cellulosic fibers can move freely to some extent, and therefore, the advantages described below are merely exerted. Alternatively, the number of twists of the lower twist and the upper twist can be lower than the number of twists described above or later.

In the present invention, a plurality of the above-described twisted composite yarns are twisted together with the heat-fusible fibers in the direction opposite to the twist. The number of twists is preferably 100 times or more per m.
As the heat-fusible fiber, Elder (manufactured by Toray Co., Ltd.) and Flor (manufactured by Unitika Co., Ltd.), which are known as low melting point nylon filament yarns, can be used. The mixed denier ratio is about 0.1 to 10%. Two heat-fusible fiber yarns are better to have two denier yarns than one yarn.

In the fusion, the above twisted composite cord yarn is cone-up and heat-treated in a steam atmosphere under pressure, or is squeezed and treated in hot water near the boiling point. The dyed cheese can be melted at the same time as the cheese dyeing, or can be melted at the same time as the skein dyeing.

The skein method is slightly inferior in adhesive strength, but the skein method is preferable when the bulky BCF nylon is used for bulking. If you want to suppress bulkiness and finish it with a firmness, you can just glue it in the corn or cheese wind state. In this case, the adhesion is fairly strong.

The composite cord thread thus obtained is sewn on a base cloth such as a canvas, and the cords are cut into a uniform length and used as a cleaning mop. This mop can be made into a dust control mop to be used in a dry state by impregnating a known dust collecting / holding oil agent, a so-called dust control agent. In addition to the mop, it can also be used as an entrance mat for removing dust such as shoes.

[0020]

The present invention will now be described in more detail by way of examples, which do not limit the scope of the present invention. Example 1 One 1600 denier 40-filament viscose rayon filament yarn and two 1300 denier 136-filament nylon 66BCF yarns were twisted at 140 T / m in the Z direction of the final twist, followed by a heat-fusible fiber. As 1
00 denier 10 filament low melting point nylon thread 2
While inserting the book in the center of the above-mentioned two twisted composite yarns, 120 T / m twisting was performed in the S direction.

Cone up this into a paper tube,
It was treated for 15 minutes in a superheated steam atmosphere at 0 ° C. Also,
The same was rewound into a skein having a circumference of 180 cm, treated in hot water of 95 ° C. for 60 minutes, dried, and rewound on a corn. The corn-shaped heat-treated product was finished as a cord yarn with hardness and elasticity, and the skein-formed one was finished as a soft and voluminous cord yarn. It was

These fused composite cord yarns have a length of 20 cm.
A mop was prepared by cutting into multiple pieces and sewing the multiple rows to a cloth tape. This mop was washed with a household washing machine (TOSHIBA fully automatic washing machine AW-8750) for 12 minutes and dehydrated three times, and the dispersion of fusion and the fraying of individual fibers were inspected.
Only the cut end of about 5 m / m was scattered, and no damage was observed at other portions. As a result of washing the mop using cotton under the same conditions, the fiber scraps were considerably floating in the wash water, but the present invention did not show such floating of fiber scraps at all.

After immersing the composite cord yarn of the present invention in water,
It was dehydrated for 2 minutes by the dehydrator of the above washing machine, and the water retention rate with respect to the dried cord yarn was measured. As a result, 40% water swelling was shown, which was the same value as the cotton cord yarn. Further, a dust control agent mainly composed of liquid paraffin and alkylbenzene oil was attached to the above mop for practical use as a mop, but there was no scattering of fiber scraps or dust generation, and the dust collecting property was excellent.

Example 2 Using the same viscose rayon filament yarn and nylon 66BCF yarn as in Example 1, a composite cord yarn was prepared under the conditions of Table 1.

[Table 1]

Three low-melting nylon yarns having a denier of 100 denier are used at the time of ply-twisting. The obtained composite cord yarn was treated in hot water under the same skein conditions as in Example 1. as a result,
The one with the twisted viscose rayon and nylon 66BCF (2-1) had strong fusion, but the one with the upper twist (2-2) had weak fusion itself and was It was easy to disperse and lacked in practicality as a mop. From this, it can be seen that it is necessary to mix the viscose rayon and the nylon 66BCF with the twisted yarn in the lower twisting stage.

Example 3 The constitution of the lower twisted yarn was made at Z-140 T / m under the conditions shown in Table 2.

[0027]

[Table 2]

Subsequently, two 100-denier low-melting nylon yarns are inserted at the time of ply-twisting these two twisted yarns, and S-
It was twisted at 120 T / m, squeezed and heat treated under the same conditions as in Example 1. The obtained composite cord yarn was examined for twist, hardness, water swelling degree and the like. The results are shown in Table 3.

[0029]

[Table 3]

Twisting; 3-1 and 3-3 were often bent in the middle of the cord yarn due to the remaining torque of the twist.
The proportions of viscose rayon are 79% and 32%, respectively, and others (the proportion of viscose rayon 32 to 66).
%), It is preferable that both materials are in the range of 30 to 70%.

Hardness: The hardness should be selected according to the requirements of the application. A flat cross-section yarn having a denier of 10 denier is soft, and a round cross-section yarn having a denier of 10 to 40 denier is judged to have an appropriate hardness.

Water swelling degree: The water swelling degree shows an intermediate value between the viscose rayon yarn and the nylon 66 yarn, but the higher the blending ratio of the viscose rayon yarn, the better the water swelling. However, it shows a value almost equal to or better than cotton and can be used as a mop material that can be used on the floor. In addition, the impregnation of the dust control agent is improved, and the transfer of adhesion to the object is prevented.

[0033]

Example 4 Two viscose rayon filament yarns of 900 denier 30 filaments made of Y-section yarn,
1300 denier 136 filament nylon 66B
When twisting two CF yarns at 140 T / m in the Z direction of the lower twist,
The nylon 66BVF yarn was supplied 4% more, and the viscose rayon filament yarn was twisted so as to be covered with the nylon 66BCF yarn.

Next, two 100-denier 10-filament low-melting-point nylon yarns as heat-fusible fibers were inserted into the center of the two twisted composite yarns, and 110T / in the S direction.
m was twisted. This product was rewound into a skein having a circumference of 180 cm and treated in a superheated steam atmosphere at 115 ° C. for 15 minutes.

The fused cord yarn obtained in this manner had a soft texture and volume, but a knitted fabric with a frenching machine was sewn on a canvas to produce a mop. This mop was used for cleaning in a work environment with a large amount of fiber scraps and oil, and the effect of cleanly removing the captured fiber scraps was confirmed.

It was also confirmed that it is possible to co-wash with a cotton mop because the dust is removed easily during washing. With a mop made only of nylon 66BCF yarn, when co-washed with cotton, cotton debris was often caught at the tip of the cord during washing, and co-washing with cotton cord was completely impossible.

Although the above examples relate to viscose rayon yarn and nylon 66BCF yarn, even if cupra rayon yarn is used as a regenerated fiber of cellulose yarn, polyester, polyvinyl alcohol, polyvinyl chloride is used as a thermoplastic synthetic fiber. Almost the same result can be obtained by using such long fibers.

[0038]

Industrial Applicability The composite cord yarn according to the present invention has various excellent characteristics when it is used for a mop, and they are listed below. (1) Regenerated fiber of cellulose yarn with excellent water absorption 50
It is a grade containing%, and has the same degree of water swelling as a cotton mop, so it can be used in a wet environment. It can be used as a substitute material for cotton as a mop cord material made of 100% long fibers that can be used on the floor. (2) No fiber scrap is generated by using 100% long fibers. In the case of short fibers such as cotton, the fiber scraps generated from themselves have always been a problem, but the mop using the composite cord yarn of the present invention does not generate fiber scraps at all. Moreover, it has an excellent dust trapping property.

(3) Generation of static electricity can be suppressed. 1/10 for mop cord yarn consisting only of thermoplastic synthetic fibers
It has the following low charge. Therefore, it can be utilized as a mop capable of OA in combination with the features of lintless described above. (4) Good stain removal. In particular, it shows excellent stain removal properties against oily stains.

(5) It has an effect of easily separating the captured dust during washing. In the case of a conventional synthetic fiber material having a crimp structure like BCF yarn, since it has a good ability to bite dust, it is extremely difficult to remove the dust attached to the cut tip of the cord. The same phenomenon occurs in the case of spun yarn. The present invention is excellent in phosphorus release property in addition to the soil release property described above, and it can be said that it is most suitable as a mop cord from these two properties.

When the cellulosic fiber is covered with the thermoplastic fiber, the following effective characteristics are further added. (6) A large amount of the dust control agent is absorbed in the center of the cord to suppress stickiness of the cord surface, but when used, it will rise to the surface at any time and the wiping property will be good.

(7) The dust release property is further improved. This is because the cellulosic fibers freely move due to elongation due to water during washing and come out at the cut tip of the cord. In addition, the Young's modulus is lowered by water, and since it has a straight structure, it is separated from the tip of the cord so as to remove all the dust that was being held.

(8) When viscose rayon yarn having a strong glossy feeling is used as the coated cellulosic fiber, it has an effect of making the stain oozing on the cord inconspicuous by an optical action from the inside. (9) Twisting or bending due to the difference in contraction or the difference in extension is unlikely to occur. (10) It has a soft texture. (11) Wash resistance is improved.

The mop cord yarn according to the present invention further has the following features. (12) It has a tough structure with excellent durability including washing resistance. (13) There is a feeling of falling due to the weight, and it becomes a snail that closely adheres to the object. (14) A mixed color mop with high design is possible.

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Claims (1)

[Claims] 1. A multifilament composed of thermoplastic synthetic fibers and multifilaments composed of regenerated cellulosic fibers, which are composed of long filaments, which are compounded in a ply-twisted structure. A composite cord yarn in which a book is fixed in a ply-twisted structure by heat-sealing fibers.