KR20240078888A - Seamless multi-layer fabric containing bio-fibers - Google Patents

Abstract

The present invention relates to a seamless multi-weave fabric containing biofibers, wherein the biocarbon content of the first and second fabric layers is in the range of 25% to 36% relative to the total weight of the first fabric layer and the second fabric layer. It is about a seamless multi-weave fabric.

Description

Seamless multi-layer fabric containing bio-fibers}

The present invention relates to a seamless multi-weave fabric containing biofibers, wherein the biocarbon content of the first and second fabric layers is in the range of 25% to 36% relative to the total weight of the first fabric layer and the second fabric layer. It is about a seamless multi-weave fabric.

In general, down is excellent in thermal insulation and lightweight goose or duck down is used to manufacture clothing and bedding. Down is a mixture of the fur and feathers from the neck and chest of ducks or geese, and the fur and feathers are mixed in a certain ratio.

These down products have a structure where the down filling part is filled with down, and the down filling part has been manufactured to be divided into multiple parts by sewing between the outer material and the lining. By dividing the down filling area, it is possible to prevent the down from leaning to one side and to ensure that the down is evenly distributed throughout the product, such as clothing or bedding.

However, the problem of filled down escaping through the seam line has been consistently pointed out, and with the recent trend of the down filling area becoming increasingly thinner, there was concern that down leakage would worsen as the number of sewing stitches increased.

As a prior art to solve this problem, Korean Patent No. 10-2335225 is disclosed. This Korean Patent No. 10-2335225 is for a seamless double weave down fabric, and is characterized by dividing the fabric layer without a seam line.

Recently, with the rapid spread of outdoor activities such as hiking and camping, where people can escape the suffocating daily life and enjoy nature while keeping a distance from others, the outdoor market is gradually reviving after a continuous decline in 2020.

Furthermore, environmental problems are deepening due to the production and disposal of petroleum-based plastic materials, awareness of the limitations of fossil fuels, and government regulations related to this are intensifying. Accordingly, the use of resources is increasing throughout the entire process of product design, manufacturing, and disposal. Interest in biomass-based fiber materials that can be used efficiently and minimize waste emissions and related research and development are accelerating, and interest in biomass-based fibers at home and abroad is expanding.

In relation to this point, the present inventor has invented a process for producing environmentally friendly fibers by including biomass fibers in conventional seamless fabrics and a seamless multi-weave fabric containing biofibers produced thereby.

Korea Registered Patent No. 10-2335225

The present invention was devised to solve the above-mentioned problems, and the purpose of the present invention is to provide a seamless fabric containing bio fibers with a bio carbon content in the range of 25% to 36% relative to the total weight of the first and second fabric layers. It provides multi-weave fabric.

Another object of the present invention is to provide a textile fabric containing bio-fibers that form a filling space without sewing.

A seamless multi-weave fabric containing biofibers according to the present invention includes a first fabric layer having a plurality of first warp yarns and a plurality of first weft yarns; a second fabric layer having a plurality of second warp yarns and a plurality of second weft yarns; A welding portion that divides the filling portion formed between the first and second fabric layers into a plurality of filling spaces, and is formed so that the first warp and the second warp intersect once or intersect at least twice by seaming weft. It includes a welding portion; wherein the first and second fabric layers are configured to be intersecting or not intersecting based on the number of the weft threads, and biocarbon compared to the total weight of the first fabric layer and the second fabric layer. The content may range from 25% to 36%.

Preferably, the first warp yarn, second warp yarn, first weft yarn, and second weft yarn may be any one or more of bio-based polyethylene terephthalate (PET) fiber and polylactic acid fiber.

Preferably. The first and second warp yarns are bio-based polyethylene terephthalate (PET) fibers, and in this case, the biomass content may be 15 to 23%.

Preferably, the water repellency of the fabric may be 80 or higher when measured after being washed 5 times according to the AATCC 22 test.

Preferably, the textile fabric may be a double weave and/or a triple weave fabric.

Preferably, the first and second fabric layers are intersected around the joint portion when the number of seaming wefts is 2n (n is 1 or more), and when the number of seaming wefts is 2n+1 (n is 0 or more) may be configured not to be intersecting.

In addition, the above-described method of manufacturing a seamless multi-weave fabric according to another embodiment of the present invention includes the steps of mixing acrylic (Acryl) and PVA (polyvinyl alcohol) at a ratio of 16:80 to prepare a sizing solution; And it may include preparing bio-based polyethylene terephthalate (PET) fibers as the first warp and the second warp and loading them through the sizing solution.

In addition, the processing method of the above-described seamless multi-weave fabric according to another embodiment of the present invention includes the steps of (a) pre-treating or continuously refining the seamless multi-weave fabric; (b) dyeing the fabric; and (c) imparting functionality to the dyed fabric through a water-repellent process; may include.

Preferably, step (a) includes: (a1) refining CPB in a pretreatment solution set to a temperature of 35 ± 5°C; (a2) aging at 40±5°C for about 12 hours; (a3) performing a continuous refining process at 95°C for 30 to 50 minutes; And (a4) performing the Jigger boiling water washing process through six round trips at 95°C.

Preferably, step (b), (b1) initially increasing the temperature from 20°C at a rate of 2.0°C/min; (b2) color rendering at 110 to 130°C for 35 minutes; and (b3) lowering the temperature at a rate of 3.0°C/min.

Preferably, step (c) includes (c1) Net DRY at 130°C; and (c2) performing water-repellent processing during tentering at 130°C.

According to the present invention, it is possible to provide an environmentally friendly fabric having a biocarbon content in the range of 25% to 36% based on the total weight of the first fabric layer and the second fabric layer.

In addition, according to the present invention, it is possible to provide a textile fabric containing bio fibers that form a filling space without sewing.

Figures 1 and 2 are perspective views of a textile fabric according to an embodiment of the present invention,
Figure 3 is an enlarged perspective view of a portion of a textile fabric according to an embodiment of the present invention;
Figures 4 to 6 are diagrams showing the warp and weft threads of a fabric according to an embodiment of the present invention;
Figure 7 is a diagram showing the temperature increase conditions of the dyeing process in one embodiment of the present invention.

The present invention will be described in detail with reference to the attached drawings as follows. Here, repeated descriptions, known functions that may unnecessarily obscure the gist of the present invention, and detailed descriptions of configurations are omitted. Embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art. Accordingly, the shapes and sizes of elements in the drawings may be exaggerated for clearer explanation.

Throughout the specification, when a part is said to “include” a certain component, this means that it may further include other components rather than excluding other components, unless specifically stated to the contrary.

Additionally, the term "... unit" used in the specification refers to a unit that processes one or more functions or operations, and may be implemented as hardware, software, or a combination of hardware and software.

Seamless multi-weave fabric

Figures 1 and 2 are perspective views of a textile fabric according to an embodiment of the present invention, and Figure 3 is an enlarged perspective view of a part of the textile fabric according to an embodiment of the present invention. In particular, Figure 3 is an enlarged view of the warp and weft threads of the fabric (1).

The textile fabric 1 may include first and second textile layers 10 and 20. The first and second fabric layers 10, 20 may be constructed by repeatedly intersecting warp and weft threads.

The first fabric layer 10 includes a plurality of first warp yarns 11 and a plurality of first weft yarns 12, and the second fabric layer 20 includes a plurality of second warp yarns 21 and a plurality of second weft yarns. It may include weft threads (22).

The fabric 1 may include a filling portion 30 formed between the first and second fabric layers 10 and 20 and filled with, for example, down. The filling portion 30 may be filled with filling materials such as duck down and goose down. Additionally, the filling portion 30 may be filled with various fillers such as artificial cotton, wool, silk, or air depending on the purpose.

The textile fabric 1 may include a joint portion 40 that divides the filling portion 30 into a plurality of filling spaces 32 . The joint 40 may be formed by crossing the first and second fabric layers 10 and 20. In the connection portion 40, the plurality of first and second slopes 11 and 21 may be configured to cross each other. The connection portion 40 will be described in detail later.

The textile fabric (1) may include space forming portions (14, 24). The portions of the first and second fabric layers 10 and 20 excluding the joint portion 40 can be defined as space forming portions 14 and 24. The connecting portion 40 and the space forming portions 14 and 24 may be one component of the first and second fabric layers 10 and 20. The space forming portions 14 and 24 may form a filling space 32. The connecting portions 40 and space forming portions 14 and 24 may be arranged alternately in the first and second fabric layers 10 and 20. That is, the connecting portions 40 and the space forming portions 14 and 24 may be arranged alternately along the X-axis direction of FIGS. 1 and 2.

The fabric 1 may have first and second fabric layers 10 and 20 alternately arranged. That is, the positions of the first and second fabric layers 10 and 20 may be alternately arranged outside and inside with the connection portion 40 as the center. That is, the first and second fabric layers 10 and 20 may be arranged so that their positions intersect in the Y-axis direction of FIGS. 1 and 2 with the connection portion 40 as the center. However, it is not limited to this, and as will be explained later, depending on the type of the joint 40, the first and second fabric layers 10 and 20 may be arranged so as not to intersect. The alternating arrangement of the first and second fabric layers 10 and 20 will be described in detail later.

At this time, it is preferable that the biocarbon content relative to the total weight of the first and second fabric layers 10 and 20 is in the range of 25% to 36%. The reason for this is that if the biocarbon content is less than 25%, it is somewhat too low to be considered an eco-friendly fiber, and if it exceeds 36%, the feeling of use or satisfaction drops sharply to be used as clothing.

Here, the plurality of first warp yarns (11), second warp yarns (21), first weft yarns (12), and second weft yarns (22) of the fabric fabric (1) are bio-based polyethylene terephthalate (PET) fibers and poly It may be any one or more of lactic acid fibers. Preferably, the first warp yarn 11 and the second warp yarn 21 may be bio-based polyethylene terephthalate (PET) fibers, in which case the biomass content is 15 to 23%, and even 19%. It is desirable to be

Figures 4 to 6 are diagrams showing the warp and weft threads of a fabric according to an embodiment of the present invention.

The joint portion 40 may divide the filling portion 30 formed inside the first and second fabric layers 10 and 20 into a plurality of filling spaces 32.

The fabric (1) can divide the first and second fabric layers (10, 20) without a seam line through the joint portion (40), and can be divided into a plurality of filling spaces (32) divided by the joint portion (40). Since the insulating material can be filled, balanced filling is possible. In addition, since a plurality of filling spaces 32 can be provided, it is possible to prevent the thermal insulation material from being biased to one side of the filling part 30 over time. In addition, the textile fabric 1 can eliminate seam lines through the joint portion 40, thereby preventing restrictions on the application of patterns to the textile fabric 1.

At this time, the connection portion 40 may be configured such that the first and second warps 11 and 21 intersect at least once. The connection portion 40 includes first to third connection sections 41 and 42 divided according to the number of intersections of the first and second warp threads 11 and 21 or the intersection of the first and second fabric layers 10 and 20. , 43).

The connection portion 40 may be configured such that the first and second warps 11 and 21 intersect once as shown in FIG. 4 . As shown in FIG. 2, the joint portion 40 where the first and second warps 11 and 21 intersect once may be referred to as the first joint portion 41. The first connection portion 41 may divide the filling portion 30 formed inside the first and second fabric layers 10 and 20 into a plurality of filling spaces 32.

In the case of using the first connecting portion 41, the first and second fabric layers 10 and 20 may be configured so that their positions intersect with the first connecting portion 41 as the center. That is, assuming that the first fabric layer 10 is located outside the second fabric layer 20, the second fabric layer ( 20) may be crossed so as to be located outside the first fabric layer 10. In this context, the space forming portion 14 of the first fabric layer 10 and the space forming portion 24 of the second fabric layer 20 may be positioned to intersect around the first connecting portion 41. .

The connection portion 40 may be configured such that the first and second slopes 11 and 21 intersect at least twice, as shown in FIGS. 4 and 5 . The connection part 40 may include a connection weft 45. The stitching weft 45 may be composed of at least one of the first and second weft yarns 12 and 22. The splicing weft 45 may be defined as a weft located in the splicing portion 40 among the first and second wefts 12 and 22. However, it is not limited to this, and the stitching weft 45 may be defined as a separate weft yarn that is distinct from the first and second weft yarns 12 and 22. Depending on the number of weft threads 45 in the welding portion 40, the positions of the first and second fabric layers 10 and 20 may or may not intersect around the welding portion 40.

The joining portion 40 of the fabric 1 includes a plurality of joining wefts 45, so that the joining portion 40 can be arranged in a plane arrangement as shown in FIG. 2. Through this configuration, the connecting portion 40 can stably divide the filling space 32 and improve the airtightness of the filling space 32.

As shown in FIG. 5, the connecting portion 40 in which an odd number of connecting wefts 45 are provided may be defined as the second connecting portion 42. Additionally, as shown in FIG. 6, the connecting portion 40 in which an even number of connecting wefts 45 are provided may be defined as the third connecting portion 43. In this context, the first connecting portion 41 described above may be defined as one in which the connecting weft 45 is omitted.

The second connecting portion 42 may include an odd number of connecting wefts 45, that is, 2n+1 (n is 0 or more). In the case of the second connecting portion 42, unlike the first connecting portion 41, the positions of the first and second fabric layers 10 and 20 may not intersect. That is, assuming that the first fabric layer 10 is located outside the second fabric layer 20, even if the second joint 42 is formed, the first fabric layer 10 is located outside the second fabric layer 20. ) may be located outside of it.

The third connecting portion 43 may be provided with an even number of connecting wefts 45, that is, 2n (n is 1 or more). In the case of the third connecting portion 43, the positions of the first and second fabric layers 10 and 20 may intersect like the first connecting portion 41. That is, assuming that the first fabric layer 10 is located outside the second fabric layer 20, the second fabric layer 20 is centered around the third connecting portion 43 and the first fabric layer 10 ) can be crossed to be located outside.

In the case of the first and third connecting portions 40, the positions of the first and second fabric layers (10, 20) are provided to intersect, and in the case of the second connecting portions (42), the first and second fabric layers ( The positions of 10 and 20) are arranged so that they do not intersect. Therefore, the first and third joints 40 may be defined as the first joints 41 based on whether the first and second fabric layers 10 and 20 intersect. In this case, the number of weft wefts 45 is 2n, but n can be defined as 0 or more.

In this way, by eliminating the seam line of the fabric fabric (1) through the welding portion (40), the sealing of the space filled with down can be improved to improve heat retention, and the insulation of the first and second fabric layers (10, 20) can be improved. Since crossover is selectively possible, application of various textile materials becomes possible. In addition, since multiple fabric layers can be woven simultaneously, process costs and process times can be reduced, and pretreatment and dyeing of the fabric layers can be easily performed. Meanwhile, note that the woven fabric of the present invention may be a double weave and/or a triple weave fabric.

Manufacturing and processing method of seamless multi-weave woven fabric

The method of manufacturing the above-described seamless multi-weave fabric according to another embodiment of the present invention includes the steps of mixing acrylic (Acryl) and PVA (polyvinyl alcohol) at a ratio of 16:80 to prepare a sizing solution; And it may include preparing bio-based polyethylene terephthalate (PET) fibers as the first warp and the second warp and loading them through the sizing solution.

In general, the most important factor in sizing technology is maintaining a constant amount of sizing. To achieve this, the relationship between the main elements of the sizing machine's process conditions (e.g., sand speed, nip pressure of the pressing roller, hardness of the rubber roller, etc.) and solution conditions (temperature, concentration, viscosity) must be analyzed and adjusted to achieve optimal sizing. conditions can be secured.

[Table 1] below shows the sewing conditions used in the sizing process of the seamless multi-weave fabric containing biofibers according to the present invention.

division PVA ACRYL Tomorrow's light enhancer antifungal agent smoother softener Antistatic agent Bio-PET 16 80 2 One 0.7 0.2 0.1

Acryl and PVA (polyvinyl alcohol) were mixed at a ratio of 16:80 to prepare a sizing solution, and then bio-based polyethylene terephthalate (PET) fibers were prepared as the first and second warp warps to create a sizing solution. The loading process was performed. At this time, a small amount of additives such as softeners and antistatic agents were used to increase weaving efficiency.

Meanwhile, conditions such as sizing tension and drying temperature were carried out based on the standards listed in [Table 2], the sizing speed was 100 yd/min., and sizing was carried out while being careful not to put stress on the yarn.

Yarn Tension (g) Drying temperature (℃) Creel Department protection department drying section winding part Ch.1 Ch.2 Cy.1 Cy.2 Cy.3 Cy.4 Cy.5 Bio-PET 5 5 8 7 135 135 120 120 120 120 120

Yarn speed
(yd/min.) sizing
Pick-up ratio(%) Honongdo
(%) Squeezing pressure
(kgf/ ^cm2 ) arc temperature
(℃) Bio-PET 100 8.0~10.0 8 1.0 40~50

Preferably, in consideration of the characteristics of the fabric containing biofibers, the present invention includes the steps of (a) pre-treating or continuously refining the seamless multi-weave fabric; (b) dyeing the fabric; and (c) providing functionality to the dyed fabric through a water-repellent process.

Step (a) is a step of pre-treating the seamless multi-weave fabric. Specifically, step (a) includes (a1) refining CPB in a pretreatment solution set to a temperature of 35 ± 5°C; (a2) aging at 40±5°C for about 12 hours; (a3) performing a continuous refining process at 95°C for 30 to 50 minutes; and (a4) performing a Jigger boiling water washing process through six round trips at 95°C.

The treatment processes of each of these steps are listed in Table 4 below.

division division condition (a1) CPB refining and
(a2)Aging stage Alkaline preparation -NaOH 3g/L
- Refining agent 2g/L
- Degreaser 10g/L Processing conditions - Pick up ratio: 60%
- Mangle pressure: 2.5 kgf/cm ²
- 35±5℃
- Aging time: 40±5℃ 12hrs. (a3) Continuous refining (washing) Alkaline preparation -NaOH 3g/L
- Refining agent 2g/L
- Degreaser 10g/L Processing conditions - 95℃ ×30~50m/min (a4) Jigger boiling water washing step Processing conditions - Jigger wash: 95℃ × 6 round trips

By adding this continuous scouring process and washing more thoroughly, the effect of preventing the scouring agent from remaining on the surface of the fabric occurs.

Step (b) is a step of dyeing the fabric, (b1) raising the temperature from the initial 20°C at a rate of 2.0°C/min; (b2) color rendering at 110 to 130°C for 35 minutes; and (b3) lowering the temperature at a rate of 3.0°C/min (see FIG. 7).

Step (c) is a step of imparting functionality to the dyed fabric through a water-repellent process. Specifically, step (c) includes (c1) Net DRY at 130°C; and (c2) performing water-repellent processing during tentering at 130°C. The treatment processes of each of these steps are listed in [Table 5] below.

division Secondary working conditions (Net DRY → tenter) Water repellent prescription C0 water repellent
crosslinking agent : 7% (owf)
: 1% (owf) machine condition temperature and speed
mangle pressure : 130℃ ×40m/min.
: 2.5 bar

Afterwards, seamless multi-weave fabrics containing bio fibers were manufactured in various forms through the process according to the present invention, and these are summarized in [Table 6]. Additionally, the results of measuring tear strength and water repellency for each fabric are summarized in [Table 7]. ASTM D 226 was applied for tear strength, AATCC 22 for water repellency, and AATCC 61 for washing.

fabric number slope weft group GNC01-001 P/DTY 50/72SD
(Bio 19%) PLA/DTY 75/24 dual job GNC01-002 P/DTY 50/72SD
(Bio 19%) PLA/DTY 55/24 dual job GNC01-003 P/DTY 50/72SD
(Bio 19%) PLA/DTY 75/24 + P/DTY 50/72 SD(Bio 19%) (3:1) dual job GNC01-004 P/DTY 50/72SD
(Bio 19%) PLA/DTY 75/24 + P/DTY 50/72 SD(Bio 19%) (1:1) dual job GNC01-005 P/DTY 50/72SD
(Bio 19%) PLA/DTY 75/24 TWILL GNC01-006 P/DTY 50/72SD
(Bio 19%) PLA/DTY 55/24TM800 Ripstop
(2.5*3.0) GNC01-007 P/DTY 50/36 (biodegradable) PLA/DTY 55/24 + P/DTY 50/72 SD (Bio 19%) 1:1 PLAIN GNC01-008 P/DTY 50/36 (biodegradable) PLA/DTY 55/24 + P/DTY 50/72 SD (Bio 19%) 3:7 PLAIN GNC01-009 P/DTY 50/36 (biodegradable) PLA/DTY 55/24 + P/DTY 50/72 SD (Bio 19%) 1:9 PLAIN

Fabric number Tear strength (N)
(Warp/Weft) Water repellency Early 1 wash 5 washes Washed 10 times GNC01-001 30.5/36.0 100 100 95 95 GNC01-002 31.4/33.2 100 100 90 90 GNC01-003 31.7/46.1 100 100 95 95 GNC01-004 32.4/49.6 100 95 90 90 GNC01-005 29.3/20.9 100 100 90 90 GNC01-006 28.6/15.2 100 100 100 90 GNC01-007 18.0/22.6 95 95 90 85 GNC01-008 18.6/24.0 100 100 95 95 GNC01-009 18.6/25.2 95 95 90 90

As a result of the test, it was found that the water repellency of the fabric was above 80 when measured after being washed 5 times according to the AATCC 22 test.

Although the present invention has been described above with reference to preferred embodiments, those skilled in the art may make various modifications and changes to the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. You will understand that you can do it.

Claims (11)

a first fabric layer having a plurality of first warp yarns and a plurality of first weft yarns;
a second fabric layer having a plurality of second warp yarns and a plurality of second weft yarns;
A welding portion that divides the filling portion formed between the first and second fabric layers into a plurality of filling spaces, and is formed so that the first warp and the second warp intersect once or intersect at least twice by seam weft. It includes a connecting part that is
The first and second fabric layers are configured to be intersecting or not intersecting based on the number of stitching wefts, and
Characterized in that the biocarbon content relative to the total weight of the first fabric layer and the second fabric layer is in the range of 25% to 36%,
Seamless multi-weave fabric containing biofibers
According to paragraph 1,
The first warp yarn, the second warp yarn, the first weft yarn, and the second weft yarn,
Characterized by at least one of bio-based polyethylene terephthalate (PET) fiber and polylactic acid fiber,
Seamless multi-weave fabric containing biofibers
According to paragraph 1,
The first and second warp yarns are bio-based polyethylene terephthalate (PET) fibers, and in this case, the biomass content is 15 to 23%,
Seamless multi-weave fabric containing biofibers
According to paragraph 1,
The fabric is characterized in that the water repellency of the fabric is 80 or more when measured after being washed 5 times according to the AATCC 22 test.
Seamless multi-weave fabric containing biofibers
According to paragraph 1,
The textile fabric is characterized in that it is a double-weave and/or triple-weave fabric.
Seamless multi-weave fabric containing biofibers
According to paragraph 1,
The first and second fabric layers are,
When the number of the splicing wefts is 2n (n is 1 or more), they are arranged intersectingly around the joint, and when the number of the splicing wefts is 2n+1 (n is 0 or more), they are not arranged crossly. Characterized by
Seamless multi-weave fabric containing biofibers
In the method of manufacturing the seamless multi-weave fabric of claim 1,
Preparing a sizing solution by mixing acryl and PVA (polyvinyl alcohol) at a ratio of 16:80; and
Preparing bio-based polyethylene terephthalate (PET) fibers as a first warp and a second warp and loading them through the sizing solution,
Manufacturing method of seamless multi-weave fabric
In the processing method of seamless multi-weave fabric,
(a) pre-treating or continuously refining the seamless multi-weave fabric;
(b) dyeing the fabric; and
(c) imparting functionality to the dyed fabric through a water-repellent process; Characterized in that it includes,
Processing method of seamless multi-weave fabric
According to clause 8,
In step (a),
(a1) refining CPB in a pretreatment solution set at a temperature of 35±5°C;
(a2) aging at 40±5°C for about 12 hours;
(a3) performing a continuous refining process at 95°C for 30 to 50 minutes; and
(a4) performing a Jigger boiling water washing process through six round trips at 95°C;
Processing method of seamless multi-weave fabric
According to clause 8,
Step (b) above,
(b1) initially increasing the temperature from 20°C at a rate of 2.0°C/min;
(b2) color rendering at 110 to 130°C for 35 minutes; and
(b3) lowering the temperature at a rate of 3.0°C/min,
Processing method of seamless multi-weave fabric
According to clause 8,
In step (c),
(c1) Net drying at 130°C; and
(c2) carrying out water-repellent processing during tentering at 130°C,
Processing method of seamless multi-weave fabric