JP2509118B2 - Compound cord yarn - Google Patents

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 a novel structure having properties suitable for mops and floor mats. The composite cord yarn of the present invention comprises a plurality of cellulosics.
Of recycled thermoplastic multifilament (core yarn)
Synthetic fiber multifilament (covering yarn) coated
Heat-bonded fiber with multiple composite yarns with a twisted ply structure
A three-layer structure (covering structure) that is fused and fixed with a more twisted structure
So, it has a structure that allows the core thread to move freely,
Composite suitable as cord yarn for mops or floor mats
Can provide cord thread . In particular, the present invention does not generate fiber scraps during use of the product or during 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, a mop is a tool for capturing and removing dust, but it has a drawback that it becomes a source of dust itself. For some reason, the raw material for the mop cord is mainly spun yarn of staple fiber such as 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 Japanese Patent Laid-Open No. Sho 61-61.
No. 100222. However, unlike cotton, which is the existing main material, it has poor water absorbency and is difficult to support on the floor.In the case of synthetic fiber, the dust control agent does not penetrate the fiber well, and if it is used on a glossy surface, 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 practicability is achieved. Therefore, such products are already known. A mixed spun yarn of cotton and synthetic fiber is known from JP-A-61-12946. Here, it is described to use a cotton yarn in which nylon, acrylic and the like are mixed-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 made 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. In addition, as fiber examples, it is illustrated that other than cotton, cellulosic fibers such as rayon and acetate are used as a raw material, but it is shown that spun yarns of these staple fibers are used alone or in the form of a mixed spun 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 their mops are widely distributed. However, unfortunately, there is still a drawback that it is a source of dust because it is spun yarn. Also,
No. 36-6646 discloses synthetic and natural fibers and low
The low melting point synthetic fiber obtained by melting plural twisted yarns with the melting point synthetic fiber
A two-layer composite yarn fixed with fibers is disclosed. this
In the case of composite yarn, as shown in FIG.
Fiber or natural fiber 5 is fixed with melt 4 of low melting point synthetic fiber
It is not possible to move freely because it is a composite cord thread for mop
Then, it cannot be used .

[0006]

OBJECTS OF THE INVENTION It is therefore an object of the present invention has a water-absorbent, such as cotton was the main material of the past, yet not out tough fray, it is the generation of fiber waste
It is an object of the present invention to provide a composite cord yarn that satisfies the requirements that the mop should have, such as good dust and dirt removal during washing .

The present invention also provides a composite cord yarn mainly for a mop, which has a good feeling of hitting an 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]

Means for Solving the Problems The present inventor has solved the above problems.
As a result of various studies on the above, a plurality of regenerated cellulose-based fibers were obtained.
Fiber multifilament (core yarn) is made of thermoplastic synthetic fiber
Twisted structure covered with ruti filament (covering yarn)
A plurality of composite yarns that have been composited with
Since it has a three-layer structure (covering structure) that is fused and fixed by manufacturing,
With a structure that allows the core thread to move freely,
Is a composite cord yarn suitable as a cord yarn for floor mats.
They have found that they can be provided and have completed the present invention .
That is, the present invention is: a multifilament composed of thermoplastic synthetic fibers and
Multifilament made of cellulosic regenerated fiber
Regeneration of the cellulosic system consisting of a combination of long fibers of
The fibers were substantially coated with thermoplastic synthetic fibers
It is compounded with a twisted structure, and multiple composite threads are heat-sealed.
A composite cord yarn that is fixed in a twisted structure by fibers
provide. Further, the heat-sealing fiber described is a low melting point nylon filament.
It is also characterized in that it is a thread . In addition, or the described composite cord yarn is for mop or floor
It is also characterized in that it is a cord thread for mats .

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 cellulosic fiber 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 desired as a composite cord yarn in terms of application and use.
It is already 1000 to 5000 denier.

From the viewpoint of achieving both water absorption and washing resistance in that they both have different shrinkage behavior with respect to heat and elongation behavior with respect to water, it is preferable that the balance between the two is not so biased, 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 number of twists needs to be a predetermined number of twists, but is preferably 100 times or more per m in order to prevent the cellulosic fibers from being raised due to the difference in shrinkage of the two materials. Also, interlacing may be performed before the twisted yarn and then twisted.

The composite cord yarn of the present invention is prepared by supplying the cellulosic fiber so as to be located at the center of the ply-twisted structure.
It is necessary to have a structure that is substantially covered by thermoplastic synthetic fibers.

Substantially, the term "coated structure" means that after the twist-fixing with the heat-sealing fibers, only the cellulosic fibers can be pulled out from them. 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. Instead, the number of twists of the lower twist and the upper twist can be lower than the number of times described above or later.

In the present invention, a plurality of the above-described undertwisted structure composite yarns are twisted together with the heat-fusible fibers in the direction opposite to the undertwisting. The number of upper 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 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 half denier yarns than one.

For fusion, the above twisted composite cord yarn is cone-up and heat-treated in a steam atmosphere under pressure, or 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 skeined and 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 a bulky BCF nylon is used for bulking. If you want to suppress bulkiness and finish it with a firmness, you can bond 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 canvas, and the cords are cut into a uniform length to be 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 nylon yarn 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 at 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 The resulting composite
As shown in Fig. 1 (a), the structure of the cord yarn is made up of multiple cords.
Luluose-based recycled fiber core yarn 1 is covered with synthetic fiber coated yarn 2.
Multiple composite yarns were melted and fixed by the heat fusion fiber 3.
It was found to have a three-layer structure .

These fused composite cord yarns have a length of 20 cm.
A mop was produced by cutting into multiple pieces and sewing multiple rows of the pieces onto 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 edge 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 floated in the wash water, but such floats of the fiber scraps were not observed at all in the present invention.

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 on the dry 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 no scattering of dust and generation of dust were found, 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 shown in Table 1.

[Table 1]

Three low-melting nylon yarns having a denier of 100 denier are used during the upper twist. 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 a strong fusion bond, while the one with the twisted upper twist (2-2) had a weak fusion itself and was It was easy to disperse and lacked in practicality as a mop. From this, it is understood that it is necessary to mix the viscose rayon and the nylon 66BCF in the twisting step in the twisting step.

Example 3 An undertwisted yarn composition was produced at Z-140 T / m under the conditions shown in Table 2.

[0027]

[Table 2]

Subsequently, two low-melting nylon yarns of 100 denier were inserted when two of these lower twisted yarns were combined, 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 twisting, hardness, water swelling degree and the like. Table 3 shows the results.

[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 twisting.
The proportions of viscose rayon are 79% and 32%, respectively, and others (the proportion of viscose rayon is 32 to 66).
%), It is preferable that both materials are between 30 and 70%.

Hardness: The hardness should be selected according to the requirements of the application. A flat cross-section yarn with a single yarn denier of 10 denier is soft, and a round cross-section yarn with a single yarn 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, and 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 adhesion and transfer to the object can be 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.

Subsequently, two low melting point nylon yarns of 10 filaments of 100 denier as heat-fusible fibers were inserted in the center of the two twisted composite yarns, and 110 T / in the S direction.
m was twisted. This 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 thus obtained 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 it is easy to remove dust during washing. When the mop made of only nylon 66BCF yarn was co-washed with cotton, cotton debris was often captured at the tip of the cord during washing, and co-washing with the cotton cord was completely impossible.

Composite cords obtained in Examples 2 to 4 above
The yarn basically has the structure shown in FIG.
Found to have . Further, although the above-mentioned examples relate to the viscose rayon yarn and the nylon 66BCF yarn, even if the cupra rayon yarn is used as the regenerated fiber of the cellulose yarn, the thermoplastic synthetic fiber is polyester, polyvinyl alcohol, polyvinyl chloride or the like. The same result can be obtained by using the long fibers of.

[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 50 with excellent water absorption
It is a grade containing%, and has the same degree of water swelling as a cotton mop, so it can be used in a water environment. It can be used as a material to replace 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 by 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. 1/1 for mop cord yarn consisting only of thermoplastic synthetic fibers
It has a low charge of 0 or less. Therefore, it can be used as a mop capable of OA in combination with the features of lintless described above. (4) As shown in Fig. 1 (b),
Good removability due to a small amount of regenerated cellulose core yarn coming out . In particular, it shows excellent stain removal property 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 dust-eating property, 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. In addition, with conventional 100% synthetic fiber cord yarn
Is hard to remove dirt, and the tip becomes dark. 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. It washes the mop
If so, because the core yarn is a cellulose regenerated fiber,
Easy to remove dust and dirt trapped in the composite cord thread
Because it falls to.

When the cellulosic fiber is covered with the thermoplastic fiber, the following effective features are added. (6) A large amount of 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 move freely due to elongation due to water during washing and come out at the cut tip of the cord. In addition, the Young's modulus decreases due to water, and since it has a straight structure, it separates 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 bleeding 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) A feeling of falling due to the weight is produced, and it becomes a snare that closely adheres to the object. (14) A mixed color mop with high design is possible.

[Brief description of drawings]

FIG. 1 is a schematic view showing a cross section of a composite cord yarn having a three-layer structure of the present invention.

FIG. 2 is a schematic diagram showing a cross section of a conventional composite yarn having a two-layer structure.

[Explanation of symbols]

 1 Cellulose Regenerated Fiber Core Yarn 2 Synthetic Fiber Coated Yarn 3 Heat Fused Fiber 4 Low Melting Point Synthetic Fiber Melt 5 High Melting Point Natural or Synthetic Fiber

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Claims (3)

(57) [Claims] 1. A a combination of the long fibers of the multifilament consisting of multifilaments and cellulose regeneration fibers made of thermoplastic synthetic fibers, said cellulose
The recycled fibers are essentially made of thermoplastic synthetic fibers.
A composite cord yarn, wherein the composite cord yarn is compounded in a covered twisted structure, and a plurality of the composite yarns are fixed in a twisted structure by a heat fusion fiber. 2. The heat-melt-adhesive fiber according to claim 1, which has a low melting point
Composite cord characterized by being a long filament yarn
Thread . 3. The composite cord yarn according to claim 1 or 2
Characterized in that it is a cord thread for a floor mat or a floor mat
A composite cord thread to be used .