KR101020207B1 - Fabric including low melting fiber - Google Patents

Abstract

The present invention is a fabric comprising a general yarn and a low melting point yarn, wherein the low melting point yarn is included in the warp and weft or warp or weft; The general yarn and low melting point yarns are mixed or blended and included in warp and weft yarns, or inclined or weft yarns, and the fusion rate of the low melting point yarns is 30 to 100%, and the unfolding strength of the fabric is 0.2 to 3.5 Kg. It provides a fabric containing a low melting point yarn.

Description

 Fabric containing low melting point yarn {Fabric including low melting fiber}

The present invention relates to a fabric containing a low melting point yarn, and more particularly to a fabric that can be satisfied at the same time the shape stability and environmental stability by controlling the fusion rate of low melting point yarn.

Recently, the fabric is expanding its use not only for clothing but also for industrial and household goods. Among them, fabrics are used for screens as living materials. Screens are generally used as window screens or screens of projectors. Among them, screen screens are used for protecting privacy inside homes, hotels, restaurants and other buildings. It refers to what is being used for sun protection. It is a product made by cutting a certain width of fabric, winding it with a roll and fixing it to a window so that the user can unwind the roll to cover the window or wind the roll to secure a field of view. This product is called roll roll, panel screen, vertical, etc. by cutting the fabric in the form of rolls and panels.

The screen fabric should be given rigidity as it is used in long width. To this end, by coating the surface of the conventional screen fabric using a polyurethane-based resin has been given rigidity while ensuring the unique flexibility of the fabric.

However, in the above method, the coating process must be added in the process, and the screen fabric has a problem of indoor environmental pollution because the coating material is treated as VOC due to the characteristics of being installed and used in the house.

The present inventors, on the other hand, pay attention to polyester fibers, which have high strength, chemical resistance, excellent melting resistance in the range of 250 to 255 ° C., excellent heat resistance, and elasticity against extension bending. In addition to clothing such as welfare and shirts, it was noted that there are various uses for industrial materials.

However, the above polyester has a relatively high melting point and generally uses a formalin (formaldehyde aqueous solution) or an adhesive containing an organic solvent and a hard resin (phenol resin, melanin resin, urea resin) when curing the fiber structure. The adhesive containing such an organic solvent does not penetrate to the inside of the fabric, so the adhesiveness is low and the touch when finished is rough. In addition, most of the substances are highly volatile and harmful to the human body, and have been an environmental problem such as toxic gas emissions.

On the other hand, in order to improve this problem, a technique has been proposed that can omit the coating process by fusing the low-melting point yarn to the fabric by heat-treating the woven fabric including the low-melting point yarn. Although this method has an advantage of improving the problems of the conventional coating method, there is a problem in that it does not form a variety of products and does not have the properties according to the required use because the property control according to the fusion rate is not examined.

  In order to solve the above problems, an object of the present invention is to provide a highly stable fabric that does not emit volatiles.

In another aspect, the present invention is to provide a fabric capable of controlling the physical properties according to the fusion rate.

In addition, the present invention is to provide a fabric that can satisfy the flexibility as a fabric and the rigidity for the screen at the same time.

In addition, the present invention is to provide a suitable physical properties that the fabric can satisfy the flexibility and rigidity at the same time.

In order to achieve the above object, the present invention is a fabric comprising a general yarn and a low melting point yarn, the low melting point yarn is included in the warp and weft, or warp or weft; The general yarn and low melting point yarns are mixed or blended and included in warp and weft yarns, or inclined or weft yarns, and the fusion rate of the low melting point yarns is 30 to 100%, and the unfolding strength of the fabric is 0.2 to 3.5 Kg. It provides a fabric containing a low melting point yarn.

In another aspect, the present invention provides a fabric containing a low melting point yarn of all fabric strength of the fabric (based on 5mm) is 10 to 35kg.

In another aspect, the present invention provides a fabric comprising a low melting point yarn of 3 to 10cm bending length of the fabric.

In another aspect, the present invention provides a fabric comprising a low melting point yarn composed of the general yarn and the low melting point yarn 50: 50 to 75: 15 weight ratio.

In another aspect, the present invention provides a fabric comprising a low-melting point yarn, characterized in that the low-melting point yarn alone or a general yarn and a low-melting point yarn is mixed or spun yarn.

In another aspect, the present invention provides a fabric comprising a low-melting point yarn ratio of the general yarn and the low-melting point yarn 70: 30 to 0: 100 weight ratio.

In another aspect, the present invention provides a fabric comprising a low melting point yarn as a composite fiber, a low melting point polyester resin in the sheath portion, a flame retardant polyester resin in the core portion.

In another aspect, the present invention provides a fabric comprising a low-melting point yarn containing the isophthalic acid component, terephthalic acid component, ethylene glycol component and diethylene glycol component.

In another aspect, the present invention provides a fabric comprising a low-melting point yarn copolymerized with the flame-retardant polyester resin is phosphorus-based flame retardant.

In another aspect, the present invention provides a fabric comprising a low melting point yarn containing 5,000 to 10,000 ppm of phosphorus atom (P) in the polyester-based flame retardant polyester-based resin.

The present invention also provides a fabric comprising a low melting point yarn wherein the ratio of the sheath portion to the core portion is from 10:90 to 30: 70% by weight.

In another aspect, the present invention provides a fabric comprising a low melting point yarn further comprises a flame retardant yarn.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, it should be noted that in the drawings, the same components or parts denote the same reference numerals as much as possible. In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted in order not to obscure the subject matter of the present invention.

The terms "about "," substantially ", etc. used to the extent that they are used herein are intended to be taken to mean an approximation of, or approximation to, the numerical values of manufacturing and material tolerances inherent in the meanings mentioned, Accurate or absolute numbers are used to help prevent unauthorized exploitation by unauthorized intruders of the referenced disclosure.

As used herein, the term "fabric" is used as a term meaning all of woven fabrics, knitted fabrics, felts, plates, nonwoven fabrics, adhesive fabrics, mold fabrics, webs.

The fabric according to the present invention may be formed by mixing a general yarn and a low melting point yarn. First, general yarns may be used without limitation, and low melting point yarns may be used as non-limiting examples of cis-core or split composite fibers. The low melting point yarn may be used for warp and / or weft only with low melting point yarn, and the low melting point yarn and the general yarn may be mixed and / or spun yarn.

In addition, the low-melting point yarn may be a flame-retardant low-melting point polyester filament including a low-melting point polyester-based resin in the sheath part and a flame-retardant polyester-based resin in the core part. In this case, the polyester resin may be one or more selected from the group consisting of polyethylene terephthalate and polybutylene terephthalate resin, the low-melting polyester resin isophthalic acid component, terephthalic acid component, ethylene glycol component and diethylene It may include a glycol component.

Further, the polyester resin may have a melting point of 220 ° C. to 260 ° C., and a melting point of the low melting polyester resin may be 110 to 200 ° C. If it is less than the above range there is a problem in the morphological stability of the polyester itself and if it exceeds the above range may affect the resin of the core portion. The ratio of the sheath portion to the core portion is preferably 10:90 to 30: 70% by weight. If the sheath portion is less than 10% by weight, the thermal adhesion performance is lowered. It becomes too small and the fiber property of polyester falls remarkably, and it becomes difficult to exhibit a flame-retardant property.

The flame retardant polyester-based resin is preferably copolymerized with a phosphorus flame retardant, more preferably may be a phosphorus flame retardant represented by the following formula (1). In this case, it is preferable that the phosphorus flame retardant contains 5,000 ppm to 10,000 ppm of phosphorus atom (P) in the polyester resin. When added so that the phosphorus content is less than 5,000 ppm, the flame retardant effect is insignificant, and if it exceeds 10,000 ppm, the melt viscosity of the polyester-based resin is lowered, there is a problem that the workability and physical properties during spinning.

However, R1 and R2 are a C1-C18 alkyl group, an aryl group, a monohydroxy alkyl group, or a hydrogen atom, R3 is a C1-C18 alkyl group, an aryl group. In addition, n is an integer of 1-4.

When the yarn to form the fabric is prepared, it can be woven or woven according to the design of the predetermined fabric. In forming the fabric, the general yarn and the low melting point yarn may be included in the fabric in a weight ratio of 50:50 to 75:15. On the other hand, when the low-melting point yarns are mixed or filamented with the general yarns to be woven or woven together with the normal yarns, the ratio of the mixed and spun yarns to the low-melting point yarns may be included in a weight ratio of 70:30 to 0: 100. When the general yarn and the low melting point yarn is in a weight ratio of 0: 100, it means that the low melting point yarn is used alone, not mixed or pulverized yarn.

The fabric formed through the weaving or knitting is subjected to a process of fusing low-melting point yarns to impart rigidity. At this time, the low melting point yarn is fused between fibers to impart rigidity or form stability to the fabric (fusion rate). The cross section of the woven fabric is cut vertically (when the low melting point yarn is provided as a weft yarn) and then fixed. Then, using an electron microscope, the cross-sectional group of the fabric is observed at 200 times magnification, and 200 of these are randomly extracted, and the number of fibers being fused is counted by counting the number of fibers fused between the fibers within this range. This is expressed as a percentage.

Fusion rate of the fabric according to an embodiment of the present invention may be 30 to 100% to be provided in a variety of products. And in the case of the fabric having a fusion rate in the above range the degree of slippage is 0.1 to 2.5mm, in the case of the pull-up strength may be 0.2 to 3.5Kg per 1ol, 10 to 35Kg based on 5mm. In addition, the bending length of the fabric may be 3 to 10cm.

The sliding length means a length in which the inclined or weft yarns are partially biased or pushed to one side by physical action such as friction applied to the surface or the back of the fabric. In the case of general fabrics, there is a binding factor between the warp and the weft by the cover factor (cover factor) to secure the shape stability of the fabric as a physical bonding force, but the fabric according to the present invention to secure the fusion rate of the warp and / or weft respectively The shape stability of the fabric can be further secured (see Fig. 4).

Meanwhile, the fold-up strength refers to the strength when the warp or weft yarn woven from the fabric is separated from the fabric. In other words, the high pull-up strength means that the woven yarn has a high degree of fusion with the low melting point yarn. This means that the fabric is secured to form stability in the use state of the long width or long length for screen or blind use.

In addition, the bending length of the fabric according to the present invention may be 3 to 10cm. The bending length can be evaluated by the test method described below, but the bending length of the fabric according to the present invention shows a certain difference from the bending length of the tubular fabric, but bendability can be expressed to ensure flexibility as the fabric. If the bending length is excessively long, there is a lack of flexibility as a fabric, and thus, there is a difficulty in the processing process, and there is a problem that is unsuitable as a blind or the like.

When the physical properties of the fabric are included in the above range, appropriate form stability is given for screen / blinds, and there is no big problem in rolling (when used as blind paper, the fabric can be wound). That is, in the fabric according to the present invention, the above-described physical properties may be regarded as a preferable region that can simultaneously satisfy the contradictory physical properties of the shape stability for the screen and the flexibility as the fabric.

On the other hand, the fabric according to an embodiment of the present invention may use ultraviolet absorbers such as benzotriazole-based, benzophenone-based and other processing agents for fibers in order to improve the light fastness in addition to flame retardancy. Antistatic agents, water and oil repellents, antifouling agents, antibacterial agents, moisture absorbents, anti slip agents, and the like, which are generally used as other textile processing agents that may be used, may additionally be used, even if such commonly known processing agents are added. Of course, it is included in the scope of the present invention without departing from the spirit of the invention.

Meanwhile, the fabric according to the present invention may be made of a fabric formed of flame retardant yarn and low melting point yarn. In this case, the low melting point yarn may be included in warp and weft yarns, or inclined or weft yarns, or the flame retardant yarn and low melting point yarns may be mixed or plyed together and included in the inclined and weft yarns, or inclined or weft yarns. Other physical properties and fusion rate may be the same as the fabric formed of the general yarn and low melting point yarn.

As described above, the fabric according to the embodiment of the present invention does not adopt a separate coating process and thus does not emit volatile materials, thereby having an effect as an environmentally friendly industrial material.

In addition, the fabric according to an embodiment of the present invention is characterized by having a suitable physical properties for each application by providing physical properties that can satisfy the flexibility as a fabric and the rigidity for the screen at the same time.

In addition, the fabric according to an embodiment of the present invention has the advantage that it can have a suitable physical properties by changing the fusion rate according to the use.

 Examples of the method for producing the recycled polyester fiber of the present invention are shown below, but not limited thereto.

Example 1

Weaving yarn using warp yarn as general polyester, weft yarn with core structure (Sheath / Core) composite fiber, 30% by weight of polyester with low melting point and 70% by weight of general polyester Weaving plain weave using one yarn. At this time, the tissue density is 100 strands / inch in the oblique direction, 100 strands / inch in the weft direction. The woven fabric was then treated to a fusion rate of 30%.

Examples 2-5

As in Example 1, but the fusion rate was 50%, 70%, 90%, 100%, respectively.

Examples 6-10

In the same manner as in Examples 1 to 5, the low melting point polyester ratio was 40% by weight.

Examples 11-15

In the same manner as in Examples 1 to 5, the low melting point polyester ratio was 50% by weight.

Examples 16-20

In the same manner as in Examples 1 to 5, the low melting point polyester ratio was 60% by weight.

Examples 21-25

In the same manner as in Examples 1 to 5, the low melting point polyester ratio was 70% by weight.

Examples 26-30

In the same manner as in Examples 1 to 5, the low melting point polyester ratio was 80% by weight.

Examples 31 to 35

In the same manner as in Examples 1 to 5, the low melting point polyester ratio was 90% by weight.

Examples 36 to 40

In the same manner as in Examples 1 to 5, the low melting point polyester ratio was 100% by weight.

Comparative Examples 1 and 2

Same as Example 1, but the fusion rate was treated with 10% and 20% ^, respectively.

Comparative example  3

In the same manner as in Example 1, using a general polyester yarn without using a low melting point yarn to prepare a conventional fabric.

division Fabric structure Fusion rate
(%) slope Weft Example 1 General History 30 wt% 30 Example 2 General History 30 wt% 50 Example 3 General History 30 wt% 70 Example 4 General History 30 wt% 90 Example 5 General History 30 wt% 100 Example 6 General History 40 wt% 30 Example 7 General History 40 wt% 50 Example 8 General History 40 wt% 70 Example 9 General History 40 wt% 90 Example 10 General History 40 wt% 100 Example 11 General History 50 wt% 30 Example 12 General History 50 wt% 50 Example 13 General History 50 wt% 70 Example 14 General History 50 wt% 90 Example 15 General History 50 wt% 100 Example 16 General History 60% by weight 30 Example 17 General History 60% by weight 50 Example 18 General History 60% by weight 70 Example 19 General History 60% by weight 90 Example 20 General History 60% by weight 100 Example 21 General History 70 wt% 30 Example 22 General History 70 wt% 50 Example 23 General History 70 wt% 70 Example 24 General History 70 wt% 90 Example 25 General History 70 wt% 100 Example 26 General History 80 wt% 30 Example 27 General History 80 wt% 50 Example 28 General History 80 wt% 70 Example 29 General History 80 wt% 90 Example 30 General History 80 wt% 100 Example 31 General History 90 wt% 30 Example 32 General History 90 wt% 50 Example 33 General History 90 wt% 70 Example 34 General History 90 wt% 90 Example 35 General History 90 wt% 100 Example 36 General History 100 wt% 30 Example 37 General History 100 wt% 50 Example 38 General History 100 wt% 70 Example 39 General History 100 wt% 90 Example 40 General History 100 wt% 100 Comparative Example 1 General History 30 wt% 10 Comparative Example 2 General History 30 wt% 20 Comparative Example 3 General History General History -

* Test Methods

1.Slip slip length measurement: KSK 0408

2. Unfolding strength

 (1) one full unfolding strength

A sample size of 7 × 7 (cm) was prepared, one of which was taken out, 1 cm was taken out and the bite tester (KSK 0520) was bitten in the remaining 6 cm. At this time, the tissue density was matched to 100 × 100 (strands / inch).

(2) 5mm pull up strength

Prepare a sample size of 7X7 (cm) and hook it into position 5 mm from the top of the center of the prepared sample. The hook uses a material that does not change shape even when the force of more than 60 Kg. The hook is placed on the upper part of the tensile tester, the fabric is held underneath, and the load is measured while the load is applied until the oval of 5 mm is separated from the fabric. In this case, if the fabric does not separate and the fabric breaks, the load at the time of break is considered as data. The maximum value of the loads applied during the measurement is evaluated by the property value. At this time, the tissue density was matched to 100 × 100 (strands / inch).

3. Bending length of the fabric

Prepare a sample size 7 × 7 (cm) and place one end on the platform to be parallel to the long direction of the platform. The drooping part protrudes from the platform and advances in the longitudinal direction of the platform to bend under its own load. The tip of the protruding part is free and the other side allows the sample to slide under moderate pressure. If the leading end of the sample is inclined at an angle of 41.5 ° below the horizontal plane through a continuous line at the front end of the platform, the protruding length is twice the bending length of the sample.

Test results of the above examples are summarized in Table 2 below. As shown in Table 2, the examples according to the present invention can be seen that the woven yarn is not detached due to the excellent fusion state of the fabric as compared to the general fabric (Comparative Example 3) as well as the comparative examples. In other words, it is expressed in the rigidity of the fabric can be controlled by varying the appropriate fusion rate and the mixing ratio of the low melting point yarn according to the selection for each use. 3 and 4 are cross-sectional SEM photographs of the fabric according to the embodiment of the present invention, and FIG. 5 is a cross-sectional SEM photograph of the fabric according to the comparative example.

division
slip
(mm) Falling Strength (Kg) Bending length
(cm) 1 ol 5 mm Example 1 2.5 0.2 10 3 Example 2 2.1 0.9 10.9 3.4 Example 3 1.8 2.1 11.7 3.9 Example 4 1.2 2.5 18.3 4.3 Example 5 0.5 2.7 21.1 4.7 Example 6 2.5 0.3 10.2 5 Example 7 1.9 2.1 11.4 4.4 Example 8 1.2 2.4 15.1 5.1 Example 9 0.5 2.9 19.1 6 Example 10 0.4 3.1 22.5 6.9 Example 11 2.4 0.3 10.2 4.1 Example 12 1.7 2.2 13.4 4.6 Example 13 0.9 2.6 17.1 5.4 Example 14 0.4 3.2 23.5 6.2 Example 15 0.4 3.3 26.8 7.2 Example 16 2.2 0.5 10.6 4.2 Example 17 1.3 2.2 18.3 4.8 Example 18 0.6 2.7 21.4 5.7 Example 19 0.4 3.3 26.9 6.6 Example 20 0.3 3.4 29.4 7.3 Example 21 2.1 0.7 10.9 4.6 Example 22 1.2 1.9 19.3 5.3 Example 23 0.6 2.2 25.3 6.1 Example 24 0.3 3.1 31 7 Example 25 0.2 3.4 32.1 7.6 Example 26 2 0.7 11.2 5 Example 27 1.1 1.6 22.1 5.8 Example 28 0.5 2.6 30.1 6.5 Example 29 0.2 3.3 34.1 7.3 Example 30 0.1 3.4 34.8 8 Example 31 2.1 0.7 13.2 5.5 Example 32 0.9 1.9 25.4 6.2 Example 33 0.4 2.8 33.2 7.2 Example 34 0.2 3.4 34.5 8.2 Example 35 0.1 3.5 35 8.8 Example 36 1.9 0.8 14.3 6.1 Example 37 0.8 1.9 30.4 7 Example 38 0.2 3.1 34.2 8.3 Example 39 0.1 3.5 34.9 9.2 Example 40 0.1 3.5 35 10 Comparative Example 1 4.5 0.12 3.85 2.7 Comparative Example 2 4.3 0.15 5.76 2.9 Comparative Example 3 6.7 0.1 2.14 2.6

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be clear to those who have knowledge of.

1 and 2 is a conceptual diagram showing the principle of measuring the pull-up strength 1ol standard and 5mm standard of the fabric according to an embodiment of the present invention.

Figure 2 is a manufacturing process of the recycled polyester according to another preferred embodiment of the present invention.

3 and 4 is a cross-sectional SEM photograph of the fabric according to an embodiment of the present invention.

5 is a cross-sectional SEM photograph of the fabric according to a comparative example.

Claims (9)

In the fabric containing a common yarn and a low melting point yarn, The low melting point yarn is included in warp and weft yarns, or warp or weft yarns; The general yarn and low melting point yarns are mixed or spun and included in the inclined and weft yarn, or the inclined or weft yarn, Fusion rate of the low melting point yarn is 30 to 100%, Fabric containing the low melting point yarn of all the unfolding strength (based on one ol) of 0.2 to 3.5Kg. The method of claim 1, All fabric strength of the fabric (based on 5mm) fabric containing a low-melting point yarn of 10 to 35kg. The method according to claim 1 or 2, The fabric has a bending length of 3 to 10cm fabric comprising a low melting point yarn. The method according to claim 1 or 2, The general yarn and the low melting point yarn comprising a low melting point yarn consisting of 50: 50 to 75: 15 weight ratio. The method according to claim 1 or 2, The ratio of the general yarn and the low melting point yarn is a fabric comprising a low melting point yarn consisting of 70: 30 to 0: 100 weight ratio. The method of claim 1, The fabric includes a low melting point yarn further comprising a flame retardant yarn. The method according to claim 1 or 2, The low melting point yarn is a composite fiber, A sheath fabric comprising a low melting point polyester resin in the sheath portion and a flame retardant polyester resin in the core portion. The method of claim 7, wherein The flame retardant polyester resin is a fabric comprising a low melting point copolymer copolymerized with a phosphorus-based flame retardant. The method of claim 7, wherein Wherein said ratio of sheath to core is 10:90 to 30: 70% by weight.

Images