KR101174399B1 - Blow molding yarn and textile of blow molding yarn, and method therefor - Google Patents

Abstract

The present invention relates to a fiber fabric having a hollow yarn or a hollow yarn, and a method for manufacturing the same. After obtaining the processing yarns that can be hollowed by covering them with outer shells, we obtain processing stages by weaving the processing yarns, and heat-treating the supporting stages to form a skeleton by fusion of low melting point yarns to each processing yarn of the processing stages. By eluting the eluted yarn in the live support stage to the hollow at the core of each processing yarn to obtain a fiber fabric made of hollow yarns.

Description

Hollow yarn, fiber fabric having same, and manufacturing method thereof {BLOW MOLDING YARN AND TEXTILE OF BLOW MOLDING YARN, AND METHOD THEREFOR}

The present invention relates to the production of a functional fiber fabric, and more particularly, to a hollow yarn having a hollow inside, a method for producing the same, and a fiber fabric including the hollow yarn.

Recently, environmentally friendly textile products and garments are becoming more popular due to the change in people's consumption consciousness. In addition to human-friendly and environmentally friendly textile products, there is an increasing demand for textile products having a complex function.

Among the functional fiber yarns are hollow yarns having hollows, which are characterized as follows.

(1) Lighter than ordinary fibers of the same thickness.

(2) The heat retention is high because the air with low thermal conductivity is confined in the empty space.

(3) Resistant to bending and torsion due to the structure similar to bamboo. (Shape stability)

(4) At the interface between the fiber and the void, the transmitted or reflected light is refracted and reflected in a complex way to reduce opacity.

(5) In short fibers, the water absorption increases due to the capillary action of the empty space. In addition, even in long fibers, if a fine hole is made in the hollow wall of the fiber wall, the absorbency is improved.

(6) In short fibers, various functional medicines processed in post processing exist inside the hollow, improving the durability of the given performance.

(7) Due to the increase in the apparent denier, the thickening in the fabric is increased and the length of the fabric is increased.

If the hollow fiber can be used as a textile fabric, such as clothing or bedding, it may have a complex functional characteristics such as lightweight and warmth, antifouling properties as well as human-friendly and environmentally friendly functions required by domestic and foreign consumers.

At present, in the case of Korea, hollow yarns are leading the development of chemical fiber only for chemical fiber. However, it has been recognized that the short fiber spun yarn is difficult to manufacture due to the characteristics of the short fiber itself, the method of forming the hollow shape according to the manufacturing method of the short fiber yarn, and the shape stability and durability without forming the hollow shape distortion. Also, in the case of the filamentous filament hollow yarn, the hollow ratio is less than 15% when the thickness of the yarn is applied to clothes or bedding, which is relatively thinner than that of the industry. There are many difficulties in commercialization due to the same morphological stability.

Accordingly, an object of the present invention is to provide a fiber yarn having a hollow yarn and a hollow yarn having excellent shape stability and excellent durability so that there is no hollow distortion, and a manufacturing method thereof.

Another object of the present invention is to provide a hollow yarn made of a hollow spun yarn having excellent morphological stability and durability, and a fiber fabric having the hollow yarn, and a method of manufacturing the same, spun as staple fibers.

According to the above object, the present invention, the low-melting-point yarn for the skeleton forming and the hollow forming eluting yarn elutable by the eluting solution to obtain a twisted yarn and coated with the outer yarn to the twisted yarn is provided with a processing yarn capable of forming a hollow Thus, the hollow yarn characterized in that the hollow yarn having a hollow through the post-treatment including the fusion of the low melting point of the processing yarn and the elution of the eluted yarn can be provided.

In addition, the present invention is a raw material obtained by weaving hollow yarns capable of forming hollow yarns obtained by applying twisted yarns by combining the low-melting point yarns for skeleton formation and the hollow-formed eluting yarns elutable by the eluting solution and coating the twisted yarns with an outer sheath. Having a support stage, through the post-treatment including the fusion of the low melting point yarn and the dissolution of the elution yarn in the processing yarns constituting the raw support stage, it is possible to provide a fabric provided with a hollow yarn having a hollow It is a fiber fabric having a hollow yarn.

In addition, the present invention is a raw material obtained by weaving a hollow yarn capable of forming a hollow yarn and a hollow yarn eluted by eluting solution to obtain a twisted yarn and the hollow yarn is coated with a jacketed outer yarn. The support stage is provided, and the raw support stage is heat-treated to fuse the low melting point yarn to each processing yarn of the raw support stage to form a skeletal part, and the elution yarn is eluted with the elution solution to form a hollow at the core of each processing yarn. It is a fiber fabric having a hollow yarn characterized in that.

In addition, the present invention, by twisting the low-melting-point yarn for skeleton formation and the hollow-elution yarn elutable by the eluting solution to obtain a twisted yarn, by coating the twisted yarn with an outer shell to obtain a processing yarn capable of forming a hollow, Hollow yarn manufacturing method characterized in that the hollow yarn having a hollow through the post-treatment including the fusion of the low melting point yarn and the eluted yarn in the processing yarn can be provided.

In another aspect, the present invention, by twisting the low-melting-point yarn for skeleton formation and the hollow-eluting elution yarn elutable by the eluting solution to obtain a twisted yarn, spun yarn to the twisted yarn to obtain a processing yarn capable of forming a hollow, By weaving the processing yarns to obtain a raw support, the fiber fabric made of hollow yarns having a hollow through post-treatment including fusion of low melting point yarns and elution of the elution yarns in the processing yarns constituting the raw support stages Fiber fabric manufacturing method having a hollow yarn characterized in that it can be provided.

In another aspect, the present invention, by combining the low-melting-point yarn for skeletal formation and the hollow-eluting elution yarn elutable by the eluting solution to obtain a twisted yarn and coating the twisted yarn with an outer sheath to obtain a processing yarn capable of forming a hollow, then processing yarns Weaving the raw support stage, heat-treating the raw support stage to form a skeletal part with low melting point yarns fused to each processing yarn of the raw support stage, and then eluting the heat-treated elution yarn in the core of each processing yarn by eluting solution. It is a method for producing a fiber fabric having a hollow yarn, characterized in that to obtain a fiber fabric made of hollow yarns to form a hollow.

The present invention has the advantage of excellent shape stability and excellent durability due to less hollow distortion of the hollow yarns. In particular, although staple fiber is very difficult to form hollow and maintain its shape stability and durability due to the characteristics of raw materials and manufacturing process, the present invention is hollowed out through the fusing and post-treatment between the addressing material and sub-materials while spinning as staple fiber. It has the advantage that the rate is good and its hollow form stability and durability are excellent.

1 is a schematic manufacturing process diagram for manufacturing a fiber yarn having a hollow yarn or a hollow yarn according to an embodiment of the present invention,
Figure 2 is a perspective view of the twisted yarn obtained by combining the low melting point yarn and the eluted yarn in the manufacturing process of the present invention,
3 is a perspective view of a processing yarn coated with a jacketed yarn in the twisted yarn of FIG.
Figure 4 is a perspective view of the raw support end obtained by weaving the hollow formable processing yarn of Figure 3,
5 is a perspective view of a hollow yarn fabric obtained by eluting the raw support end of FIG. 4 after heat treatment;
6 is a conceptual diagram of a hollow yarn of the present invention,
7 to 9 are photographs showing a state in which the outer sheath is removed from the eluted hollow yarn,
10 is a cross-sectional enlarged photograph of the present invention hollow yarn,
11 is a perspective view of the present invention hollow yarn,
12 and 13 are photographic views of the hollow yarn of the present invention,
Figure 14 is a photograph taken in the state peeled off part of the outer shell in the hollow outer yarn of the present invention.

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

1 is a schematic manufacturing process diagram for manufacturing a fiber yarn having a hollow yarn or a hollow yarn according to an embodiment of the present invention.

In the present invention, in order to prepare a hollow yarn of the fiber fabric, first, to form a processing yarn 18 capable of forming a hollow as shown in FIG. In order to make the hollow yarn of Figure 3 to form a processing yarn 18, the present invention uses the outer shell 16 of the address material and the low-melting point yarn 10 and the eluted yarn 12 of the secondary material.

As shown in FIG. 1, first, the low melting point yarn 10 and the eluted yarn 12 are twisted together (step S2 of FIG. 1) to form a twist yarn 14 as shown in FIG. 2, and the twist yarn 14 thus made is ) Is coated with an outer sheath 16 (step S4 of FIG. 1) to form a processing yarn 18 capable of forming a hollow.

The low melting point yarn 10 used in the present invention is a polyester material and serves as a skeleton of the hollow yarn (24 of FIG. 5) and is a core material that maintains the hollow shape. The general polyester yarn has a melting point of about 250 to 260 ° C, but the low melting point of polyester material ranges from 120 to 200 ° C, which is relatively lower than that of general polyester yarn. The low melting point yarn 10 has a property of melting during heat treatment and then hardening as it hardens. The low melting point yarn 10 is bonded to the outer shell 16 or the eluted yarn 12 when fused. In the present invention, the low-melting point yarn 10 has a thickness in the range of 10 to 300 denier and is preferably formed in the form of a filament yarn bundle, but may also be a monofilament yarn of the same thickness.

In addition, the eluted yarn 12 used in the present invention is a core material for producing a hollow form of a hollow yarn (24 of FIG. 5), and its raw material is PLA (Poly Lactic Acid) or PVA (Poly Vinyl Alcohol). The eluted yarn 12 is a sub-material which is located in a portion where a hollow is to be formed and is removed in a post-treatment process using an eluted solution. Therefore, the eluted sand 12 should be easily dissolved and removed in the elution solution introduced during the post-treatment process. PLA and PAV materials are easy to dissolve and elute. Among the materials used for the elution yarn 12, PLA is cheaper than PVA, so it is more suitable for use as the elution yarn 12. In addition, in addition to the PLA and PVA materials in recent years, such as elutable polyester that can be easily eluted to meet the object of the present invention has been continuously developed, of course, these elutable materials can be used.

The PLA material in the eluted sand 12 is called corn fiber, it is eco-friendly, biodegradable, fusion occurs at about 120 ~ 180 ° C, and it is easy to dissolve in an alkali solvent. In addition, the PVA material in the eluted sand 12 has a property of being easily dissolved in water.

The twisted yarn 14 is obtained by jointly twisting the low melting point yarn 10 for skeleton formation and the hollow forming elution yarn 12 that can be eluted by the eluting solution. Plywood can be carried out with all types of weaving machines or twisting yarns having a weaving yarn and twisting yarn function, and can be used by varying the thickness combination of the low melting point yarn 10 and the eluting yarn 12 according to the use and characteristics.

The twisting degree in the twisted yarn is preferably 200 ~ 4000 TPM (Twist Per Meter), more preferably 300 ~ 3000 TPM.

In addition, it is useful to form a framework of the low melting point yarn 10 by properly considering the number of twists (撚 係數: Twist Multiplier) acting as a variable in the thickness and twisting degree of the yarn within the range of twisting during the twisted yarn. The linkage number K has a relationship as shown in Equation 1 below.

Here, K is the number of links, soft water (TPM; Twist Per Meter) represents the degree of twist, the number (Nm) represents the thickness of the yarn.

The number of linkages (K) is a value that determines the degree of twist given to the thread as an absolute value for the thickness of the thread.Even if the same number of twists (years) is given to threads with different thicknesses, the number of linkages is different. Even if the number of links is applied, the number of twists will vary depending on the thickness of the thread.

The number of linkages [K] for forming the twisted yarns 14 of the present invention is preferably 50 to 330, more preferably 100 to 300.

If the linkage number [K] is less than '50', the twist becomes too small, so the pitch between the spiral twist and the twist of the low melting point yarn 10 for skeletal formation remaining after eluting the elution yarn 12 is widened. Hollow shape is unclear and a phenomenon of shape instability such as crushing of the formed hollow may occur. On the other hand, if the number of linkages [K] exceeds '330', the twist becomes too much, resulting in poor workability during spinning of the outer skin (16), excessive shrinkage during heat treatment, and spiral twist and twist between the low melting point yarn (10). If the pitch is too dense, the elution of the elution yarn 12 is inferior.

Meanwhile, the twisted yarn 14 twisted yarn is as shown in FIG. 2, and the twisted yarn 14 becomes a core part of the present invention, and the core part is covered by the outer sheath 16 to be hollowed. It is formed of a processing yarn 18. At this time, the outer sheath 16 is a seed part (sheath part).

The outer shell 16 covering the core portion is a core address material representing the appearance and physical properties of the hollow yarn (24 of FIG. 5), and the raw material may be any fiber material capable of spinning or the like. In the state of the processing yarn 18, the outer shell 16 forms a sheath part on the outside of the twisted yarn 14, and the fusion of the low melting point yarn 10 and the elution of the eluted yarn 12 are performed. When the post-treatment is completed, as shown in the hollow yarn 24 of FIG. 5, the shape of the seed portion is stably maintained according to the skeleton formation of the low melting point yarn 10, and the material is representative of the overall appearance and physical properties. .

 The method of covering the twisted yarn 14 with the outer sheath 16 includes spinning, covering, twisting yarn, and the like, and the spinning method is most preferred.

There are a number of methods for spinning the outer shell 16, such as core spinning (spinning), siro-fil spinning (Murata Vortex Spinning) MVS.

In the case of coating the outer yarn 16 by the spinning method, the outer yarn 16 may include a sliver, a roving, or the like, which is a single fiber focused type for spinning. The spinning machine uses a spinning machine capable of spinning the core yarn and the Cairo yarn, etc., and spins the yarn in a form that can completely surround the twisted yarn 14 in which the single fiber focused state for spinning such as sliver or spinning yarn is twisted together. . In addition to the spinning methods mentioned, there are a number of other spinning methods that can be adapted to the formation of the outer sheath 16, which is also applicable.

When spinning, the direction of the twist forming the outer sheath 16 using a sliver or roving yarn is preferably reversed to the twisting direction of the twisted twisted yarn 14. The twist setting after spinning may be the same as in the case of general spinning.

The hollow yarn which can be hollow formed when the twisted yarn 14 becomes a core part and the outer skin 16 consists of a seed part is a spun yarn that can be hollowed when the outer skin 16 is coated by spinning. Becomes

When the method of coating with the outer sheath 16 is made of a covering or twisted yarn method, both long and short fibers can be used.

The processing yarn 18 capable of forming a hollow is the same as that of FIG. 3, and the hollow forming yarn in which the hollow is formed in the core portion is subjected to the post-treatment of fusing the low melting point yarn 10 and eluting the eluted yarn 12 (FIG. 5). , 24 of FIG. 11.

In the present invention, the post-treatment may be performed immediately in the state of the processing yarn 18 capable of forming a hollow, but after weaving into the raw support stage 20 to ensure better commercialization or morphological stability of the hollow 30, It is preferable to perform the post-treatment to obtain a processing fabric 22 to form a hollow.

Therefore, in the preferred embodiments of the present invention by weaving the processing yarns 18 capable of forming a hollow using a weaving machine or a knitting machine (step S6 of FIG. 1), to obtain a live support stage 20 as shown in FIG.

It should be understood that the meaning of 'weaving' includes all of the weaving, knitting, and nonwoven fabrics.In the case of long-term storage of the woven support group 20, the PLA component is produced according to the elution yarn 12 as the PLA material. Full consideration should be given to possible biodegradation.

The raw support stage 20 woven in this way is heat-treated while passing through a heat treatment apparatus such as a tenter to fuse the low melting point yarn 10 in the processing yarn 18, but the outer skin 16 and the low melting point yarn constituting the seed portion. (10) The bundle filament yarns constituting itself are fused to each other (step S8 of Fig. 1). The heat treatment condition in the heat treatment machine maintains the temperature range of 120 ~ 220 ℃ so that the low melting point yarn (10) can be fused, the low melting point yarn because the eluted yarn 12 made of PLA material also has a melting point of 120 ~ 180 ℃ It is fused together with (10).

The low melting point yarns 10 and the eluted yarns 12 fused by heat treatment are hardened while the heat cools, and a strong fusion bond with the outer shell yarn 16 and the outer shell yarn 16 is also achieved at the joint portion.

After this heat treatment, the raw support stage 20 is eluted with an elution solution (step S10 of FIG. 1), and then washed with water and dried to obtain a final fiber fabric 22 made of hollow yarns 24.

When the material of the elution yarn 12 is PLA, as a elution condition, a solution obtained by diluting 50% of caustic soda (NaOH) with 3-10% OWS (On the Weight of Solution) is used as the elution solution. It is to immerse the fabric 20 heat-treated for 20 to 100 minutes in the 100 ℃ temperature range. Elution of the eluted PLA material 12 under such dissolution conditions is more than 95% eluted, the eluted PLA component is bio-degradation is environmentally friendly.

The elution solution when the material of the elution yarn 12 is PVA is water.

Part of the low melting point yarn 10 when the eluted yarn 12 is eluted, but part of the melting point is negligible and there is almost no change in physical properties, so there is no effect on the core skeleton to maintain the hollow form.

As the heat-treated fabric 20 is eluted, a final fiber fabric 22 made of hollow yarns 24 having hollows 30 formed in the core is obtained as shown in FIG. 5.

As shown in FIGS. 5 and 6, each of the hollow yarns 24 constituting the finally obtained fiber fabric 22 has hollows 30 formed in the core by eluting the elution yarns 12. That is, the hollow 30 is surrounded by a low melting point yarn 10 serving as a bone portion as a core portion, and the low melting point yarn 10 is a seed portion by an outer shell 16 bound to the low melting point yarn 10. It becomes the hollow yarn 24 of the structure enclosed.

In Figure 6 is shown as a conceptual view of the hollow yarn 24, in fact, the eluted yarn 12 and the low-melting point yarn 10 is twisted formed, so that the low-melting point yarn 10 that serves as a skeleton is a photograph of FIG. It is to be understood that the spiral and hollow 30 also appear in a spiral as in.

8 and 9 are enlarged photographs taken by removing the outer sheath 16 from the hollow yarn 24 in a state in which heat treatment and elution are completed, and the hollow 30 and the hollow 30 are spirally wrapped to filament yarns. The low melting point yarn 10 welded to each other can be seen together.

FIG. 10 is a photograph of a cross section of the hollow yarn 24 of the final fabric fabric 22 actually produced, and FIG. 11 is a perspective view of the hollow yarn 24.

12 to 14 are photographic views of the hollow yarns 24, which show the appearance of hollow yarns made of co-banged yarns, and FIG. Is showing. And, Figure 14 is a photographic figure peeled off the outer sheath from the hollow yarn of the present invention.

In the hollow yarns 24 of Figs. 10 and 11, "30" is hollow, "10" is a fused low melting point that acts as a skeleton as a core part, and "16" is a low melting point yarn as a seed part ( It is the outer shell which bound with 10). Both the low melting point yarn 10 and the outer shell yarn 16 constitute a skeleton portion 28 of the hollow 30.

Also through the actual picture of the hollow yarn 24 of FIGS. 12 to 14, the hollow 30 constituting the hollow yarn 24 and the low-melting point yarn 10 spirally framed and the low-melting point yarn 10 thereof. ) Can be seen wrapped around the outer sheath (16).

Fiber fabric 22 having hollow yarns 24 according to the present invention can be manufactured in various embodiments as follows.

Example 1

100% polyester 50 denier (D) low-melting yarn and 40 denier PLA yarn (Poly Lactic Acid Yarn) are jointly twisted with Z twist 1,800T / M (Twist / Meter) It was.

The spun yarn thus prepared was used as a core part, and a cotton yarn was prepared by spinning the yarn with S twisted 1,000 T / M in a cotton spinning machine so as to seed the sheath part.

Thereafter, the core spun yarn spun with a core was heat-treated at 190 ° C of dry heat to fuse the low melting point yarn. The core spun yarn heat-treated to melt the low-melting point portion was treated with 40% NaOH solution in 5% OWS (On the Weight of Solution) at a temperature of 98 ° C for 40 minutes to elute the PLA yarn portion. It was completed.

Example 2)

100% polyester material 50 denier (D) low melting point yarn and 40 denier (D) PLA yarn was prepared by twisted yarn twisted at Z twisted 1,800T / M.

The prepared twisted yarn was used as a core part, and a cotton yarn was used as a seed part to produce a SIRO-FIL spinning yarn with S-twist 1,000T / M at a cotton spinning machine. .

Afterwards, the SIRO-FIL spun yarn was heat-treated at 190 ° C in dry heat to fuse the low melting point yarn. The Silo-fil spun yarn heat-treated to melt the low-melting point portion was treated with 40% NaOH 50% solution in 5% OWS solution at a temperature of 98 ° C for 40 minutes to elute the PLA yarn portion. It was completed.

Example 3

A 100% polyester material 50 denier (D) low melting point yarn and 75 denier (D) PLA yarn was completed by the same procedure as in Example 1) except that the twisted yarn prepared by Z twisted 1,800T / M.

Example 4

Complete with the same procedure as in Example 1), except that 70-denier (D) low-melting point yarn and 40-denier (D) PLA yarn are 100% polyester jointed and twisted with Z twist of 1,800T / M (Twist / Meter). It was.

Example 5

A 100% polyester material 70 denier (D) low melting point yarn and 75 denier (D) PLA yarn was completed by the same procedure as in Example 1) except that it was prepared by jointly twisted Z-twist 1,800T / M.

Example 6

A 100% polyester material 50 denier (D) low melting point yarn and 75 denier (D) PLA yarn was completed by the same procedure as in Example 2) except that the twisted yarn prepared by Z twisted at 1,800T / M.

Example 7

A 100% polyester material 70 denier (D) low melting point yarn and 40 denier (D) PLA yarn was completed by the same procedure as in Example 2) except that the twisted yarn prepared by Z twisted 1,800T / M.

Example 8

A 100% polyester material 70 denier (D) low melting point yarn and 75 denier (D) PLA yarn was completed by the same procedure as in Example 2) except that it was prepared by jointly twisted with Z twist 1,800T / M.

Example 9

100% polyester material 50 denier (D) low melting point yarn and 40 denier (D) PLA yarn was prepared by twisted yarn twisted at Z twisted 1,800T / M.

The spun yarn prepared in this way was made into a core part, and the cotton spun yarn was seeded to prepare a core spun yarn by spuning the yarn with a twist of 1,000 T / M in a cotton spinning machine.

Thereafter, the spun-coated spun spun yarn was woven in a conventional manner, but was used as a weft yarn to prepare a woven fabric.

Before processing the prepared fabric, a low melting point yarn was fused by heat treatment at 190 ° C. in a heat treatment machine (Tenter).

Next, the fabric using the core spun yarn, which was heat-treated to melt the low-melting point yarn, was treated with 40% NaOH 50% stock solution at a temperature of 98 ° C in a solution diluted with 5% OWS to elute the PLA portion. It was.

Example 10)

100% polyester material 50 denier (D) low melting point yarn and 40 denier (D) PLA yarn was prepared by twisting the twist with Z twist 1,800T / M).

 The prepared twisted yarn was used as a core part, and siro-fil spinning yarns were prepared by spinning Siro-fil at S-twist 1,000T / M in a cotton spinning machine to be a seed part. .

Siro-fil Weaved Siro-fil spun yarn was woven in a conventional manner, but was used as a weft yarn to prepare a plain weave fabric.

Before processing the prepared fabric, a low melting point yarn was fused by heat treatment at 190 ° C. in a heat treatment machine (Tenter).

The fabric using the siro-fil spun yarn heat-treated to melt the low-melting-point yarn was treated with PLA for 40 minutes at a temperature of 98 ° C. in a 50% solution of caustic soda (NaOH) diluted with 5% OWS. The part was eluted and completed.

Among the above-described embodiments, the thickness of the yarn in Examples 11) to 16), a weaving method, a structure, a heat treatment, an elution method, and the like are summarized in Table 1 below.

Example Low Melting Point Thickness [D] PLA company
Thickness [D] Spinning method Weaving Heat treatment Dissolution 11 50 75
Core
Weft used plain weave
Before processing
Heat treatment machine
190 ℃
NaOH 50% stock solution
Dilute 5% OWS
98 ℃ 40 minutes treatment 12 70 40 13 70 75 14 50 75
Syrophil
(siro-fil) 15 70 40 16 70 75

Example 17)

100% polyester material 70 denier (D) low melting point yarn and 75 denier (D) PLA yarn was prepared by combining twisted twisted yarn with Z twist 1,800T / M.

The prepared twisted yarn was used as a core part, and a siro-fil spun yarn was prepared by spinning Siro-fil at S-twist 1,000T / M in a cotton spinning machine as a seed part. .

Thereafter, a siro-fil spun siro-fil spun yarn was single knit in a flat knitting machine in a conventional manner to prepare a knit water.

The low-melting-point yarn was fused by heat treatment at 190 ° C. in a heat treatment machine (Tenter) before processing the prepared knitted material.

The fabric using the siro-fil spun yarn heat-treated to melt the low-melting-point yarn was treated with PLA for 40 minutes at a temperature of 98 ° C. in a 50% solution of caustic soda (NaOH) diluted with 5% OWS. The part was eluted and completed.

The hollow spun yarn manufactured as in the above examples and the fiber fabric having the same were measured before and after elution as follows, and the hollow ratio was as follows. The results are shown in Table 2 below.

division Weight before elution Weight after elution Hollowness Remarks Example 1 100g 80g 20%
Example for checking the hollow form of the yarn. Example 2 100g 80g 20% Example 3 100g 70g 30% Example 4 100g 80g 20% Example 5 100g 70g 30% Example 6 100g 70g 30% Example 7 100g 80g 20% Example 8 100g 70g 30% Example 9 100g 90 g 10% Example for checking the hollow formation after fabrication.

When using the entire amount of the weft yarn, the hollow ratio as in Example 1) to Example 8) becomes Example 10 100g 90 g 10% Example 11 100g 85 g 15% Example 12 100g 90 g 10% Example 13 100g 85 g 15% Example 14 100g 85 g 15% Example 15 100g 90 g 10% Example 16 100g 85 g 15% Example 17 100g 70g 30%

The hollow ratios of <Table 2> are the results calculated by the following <Equation 2>, the hollow ratio is based on the weight ratio, not the cross-sectional area ratio or volume ratio, the hollow was formed by the weight change rate before and after elution.

Looking at the table of <Table 2>, the hollow ratio of the hollow yarn 24 according to the embodiment of the present invention is showing a range of 10 to 30%.

Through fusion of the low melting point yarn (10) forms a skeleton with the outer shell 16, the eluted yarn 12 PLA can be seen that the hollow 30 is as much as the space occupied by the original PLA company. .

The hollow yarn fibrous fabric 22 and the hollow yarn 24 produced according to the present invention are the skeleton of the dissolving yarn 12 is the skeleton portion 28, that is, the low melting point yarn 10 and the outer shell yarn 16 The influence on the appearance and properties on the part 28 is minimized, and the shape distortion is excellent by minimizing the hollow distortion, and the durability is also excellent.

Furthermore, when the raw support fiber 20 is obtained and then subjected to heat treatment and eluting to obtain a hollow yarn fiber fabric 22, the hollows formed in each of the hollow yarns 24 constituting the fiber fabric 22 ( 30) the shape stability is better and can be made almost no distortion of the hollow (30).

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. Therefore, the scope of the present invention should not be limited by the described embodiments, but should be determined by the scope of claims and equivalents thereof.

The hollow fiber or the fiber fabric woven with hollow yarns of the present invention can be used in the development of products such as fabrics, knitted fabrics, non-woven fabrics, etc. that require other thermal insulation, lightweight, such as bedding, clothing.

(10)-Low Melting Point (12)-Elution
(14)-twisted yarn (16)-jacketed
(18)-Processed Yarn (20)-Raw Support Group
(22)-Hollow Yarn Fiberglass (24)-Hollow Yarn
(28)-Skeleton (30)-Hollow

Claims (14)

A low melting point yarn for skeletal formation and a hollow forming eluting yarn which can be eluted by the eluting solution are twisted together to obtain a twisted yarn, and the twisted yarn is coated with an outer skin to provide a processing yarn capable of forming a hollow, and thus a low melting point yarn in the processed yarn. Hollow yarn, characterized in that the hollow yarn having a hollow can be provided through post-treatment including fusion and dissolution of the eluted yarn.
With a raw support end made by weaving hollow forming process yarns obtained by combining twisted yarns of low-melting-point yarns for skeletal formation and hollow-forming eluting yarns elutable by the eluting solution and coating the twisted yarns with an outer sheath, Having a hollow yarn, characterized in that the fabric provided with a hollow yarn having a hollow through the post-treatment including the fusion of the low melting point of the processing yarn constituting the raw support stage and the elution of the eluted yarn can be provided Textile fabric.
It is provided with a live support stage which is made by weaving the low melting point yarn for skeletal formation and the hollow forming eluting yarn which can be eluted by the eluting solution to obtain twisted yarns, and weaving them with hollow forming process yarns coated with the outer skin. Heat treatment of the raw support stage to form a skeletal portion by fusing a low melting point yarn to each processing yarn of the raw support stage, eluting the eluted yarn with the elution solution to form a hollow formed in the core of each processing yarn Fibrous fabrics having yarns.
The fiberglass having a hollow yarn according to claim 2 or 3, wherein the low melting point yarn for skeleton formation has a thickness of 10 to 300 denier as a polyester material having a melting point of 120 to 200 ° C.
The fiber fabric having a hollow yarn according to claim 2 or 3, wherein the elution yarn for hollow formation is one of PLA (Poly Lactic Acid), PVA (Poly Vinyl Alcohol), and an elutable polyester material.
Low-melting point yarns for skeletal formation and hollow-eluted elution yarns elutable by the eluting solution are twisted together to obtain twisted yarns. Hollow yarn manufacturing method characterized in that the hollow yarn having a hollow can be provided through post-treatment including the melting of the melting point and the elution of the eluted yarn.
A twisted yarn is obtained by combining the low melting point yarn for the skeleton forming and the hollow forming eluting yarn which can be eluted by the eluting solution to obtain twisted yarns. By obtaining a raw support, a fiber fabric made of hollow yarns having a hollow can be provided through post-treatment including fusion of low melting point yarns and elution of the elution yarns in the processing yarns constituting the live support stages. Fiber fabric manufacturing method having a hollow yarn, characterized in that.
The low-melting-point yarn for skeletal formation and the hollow-formed eluted yarn elutable by the eluting solution are twisted together to obtain twisted yarns, and the coated yarns are coated with an outer sheath to obtain hollow yarns. After the heat treatment of the raw support end to form a bone portion while the low melting point yarns are fused to each processing yarn of the raw support stage, eluting the heat-treated elution in the raw support end with an elution solution to form a hollow in the core of each processing yarn A method of producing a fiber fabric having a hollow yarn, characterized in that to obtain a fiber fabric made of hollow yarns.
10. The method of claim 7 or 8, wherein the coating is performed by one of spinning, covering, and twisting yarns.
The method of claim 7 or 8, wherein the twisted yarn is a fiber yarn manufacturing method having a hollow yarn, characterized in that the twisted yarn is made by twisting the twist of 200 ~ 4000 TPM (Twist Per Meter).
The method of claim 7 or 8, wherein the number of linkages [K] for forming the twisted yarn is 50 ~ 330, characterized in that the fiber fabric manufacturing method having a hollow yarn.
According to claim 7 or 8, wherein the low-melting point for the skeleton forming a polyester material having a melting point of 120 ~ 200 ℃ melting point has a thickness of 10 ~ 300 denier, 120 ~ 220 ℃ when heat treatment the raw support end Fiber fabric manufacturing method having a hollow yarn, characterized in that the heat treatment in the temperature range.
The method of claim 7 or 8, wherein the elution yarn for hollow formation is a PLA (Poly Lactic Acid) material, dilution 50% stock solution of caustic soda (NaOH) with 3-10% OWS (On the Weight of Solution) during elution Method for producing a fiber fabric having a hollow yarn, characterized in that the solution is carried out for 20 to 100 minutes in a temperature range of 30 ~ 100 ℃ using one solution as the elution solution.
10. The method of claim 7 or 8, wherein the weaving is made of one of woven, knitted, and nonwoven fabrics.

Images