KR101164225B1 - Velvet woven fabric of high density - Google Patents

Abstract

The present invention relates to a high-density velvet fabric that has a soft texture and high standing density and a large surface density, and thus no visible tissue. The fineness of the pile is 135 denier or more and the number of filaments is 34 or more. Is 2.5 or more, KOSHI is 3.5 or more, and the cover factor is about 85 to 100% high density velvet fabric.
The velvet fabric according to the present invention is soft and soft to the touch, while standing up and pulling the heald with a stable tension, so that the length of the pile is constant and the surface density is increased without increasing the number of piles so that the paper tissue is not exposed to the outside. By expressing abundant surface effects such as gloss, coziness and beautifulness unique to velvet fabric, the shape of the paper tissue is stabilized to keep the pile structure uniform and stable, and the cam type heald drive device Weaving is possible by selectively connecting to the dobby type heald drive device can produce a variety of velvet fabric.

Description

Velvet woven fabric of high density

The present invention relates to a high-density velvet fabric, soft texture of the pile and high erectivity, and relates to a velvet fabric with a large surface density is not visible.

Velvet fabric is a fabric in which a certain length of pile tissue is formed on the weft or warp of the tissue, and is widely used for interior decoration, seat cover, and stuffed toys in addition to dresses, coats, hats, and shawls.

In general, the production of velvet fabrics alternately weaves the paper and pile tissues, and after weaving them, they are cut and cut into cut piles or without loops so that a loop of loop appears densely on the surface. In the process of manufacturing, or in the process of weaving into double weaves of upper and lower branch tissues by crossing the warp and weft yarns, the pile yarns reciprocate to the upper and lower branch tissues to form pile tissues and cut the middle of pile tissues The method is such that the cut piles become piles and appear on the surface of the fabric.

Velvet fabric gives direction to the pile and gives a slight gloss, and the contrast is expressed by the difference in light reflectivity at the ends and sides of the pile, and it provides warmth and beauty to express rich surface effects and to vary the color. In addition, various textures can be imparted to the surface depending on the pile length and the weaving method.

However, the pile structure, which is the characteristic of velvet fabric, is difficult to maintain a certain direction when it is subjected to external force, and if the external force is repeatedly applied, the file does not return to its original form even after the external force is removed, thereby damaging the appearance of the velvet fabric. There is a problem.

In addition, in order to prevent the velvet fabric from being exposed to the outside, increasing the number of piles to increase the surface density decreases the soft feel of pile yarns and increases the pile length while reducing the number of piles. There is a drawback that the formed form is easily collapsed by external force.

In particular, when implementing the angled shape or wrap the corners, such as velvet fabric, the pile is divided in both directions around the angular portion, so that the branched tissue of the angular portion is exposed to the outside, there is a problem that spoils the beautiful appearance of the velvet fabric.

In order to solve the above problems, Korean Patent Publication No. 0737975 uses synthetic fiber long fibers or synthetic fibers alone or blended short fibers of synthetic and natural fibers in the warp and weft of the velvet fabric, and yarns in pile yarn. A synthetic fiber multifilament having a fineness of 1 denier or less is used, and the pile yarn is disclosed in which a long-fiber velvet fabric is put into weaving by twisting or sizing after twisting.

The long fiber velvet fabric of the present invention expresses excellent drape, elasticity and tensile strength peculiar to long fiber by using synthetic fiber multifilament yarn as the warp, weft, and pile yarn of a paper tissue, and using a synthetic fiber microfiber as a pile yarn. It gives soft touch and pile yarn gives EASY-CARE by twisting or sizing after burning.

However, according to the present invention, there is a disadvantage in that the surface effects such as glossiness, softness, and beauty of the velvet fabric are reduced by undergoing a twisting or sizing process after twisting the pile yarn in order to prevent appearance damage and maintain a soft touch. have.

The problem to be solved by the present invention is to maintain the standing state of the pile to the maximum to exhibit a high-quality surface effect peculiar to the velvet fabric, to suppress the appearance damage, high density velvet that does not reveal the tissue even without increasing the number of piles To provide a fabric.

In order to solve the above problems, the present invention has a pile fineness of at least 135 denier and a filament number of at least 34, a total thickening (THV) of 2.5 or more, a KOSHI value of 3.5 or more, and a cover factor of 85 to velvet fabric. Provides 100% high density velvet fabric.

In this case, the pile is preferably acetate.

In addition, the velvet fabric is preferably woven by selectively connecting the paper tissue and pile tissue to the cam type heald drive device and dobby type heald drive device, the paper tissue is connected to the cam type heald drive device and the pile structure is dobby type heald drive More preferably, it is woven in connection with the device.

The velvet fabric according to the present invention is soft and soft to the touch, while standing up and pulling the heald with a stable tension, so that the length of the pile is constant, and the surface density is increased without increasing the number of piles so that the paper tissue is not exposed to the outside. As a result, rich surface effects such as glossiness, warmth, and beauty unique to the velvet fabric can be expressed.

In addition, the shape of the paper tissue is stabilized to keep the file structure uniform and stable, and weaving is possible by selectively connecting the paper tissue and the file structure to the cam type heald drive device and dobby type heald drive device, so that various types of velvet fabric Can be prepared.

1 is an enlarged cross-sectional view showing a schematic configuration of a velvet fabric.
2 is a view schematically showing a seed light driving device of the velvet loom 1 for weaving the velvet fabric of the present invention.
3 is an exemplary diagram showing a state in which the selected heald 40 is raised in the dobby heald drive device 10.
4 is an exemplary view showing a state in which the heald light 40 selected by the dobby heald drive device 10 is lowered.
5 is an enlarged view of main parts of the dobby seed light driving device 10.
Figure 6 is a test report showing the THV value measured with a weight measuring instrument.
7 and 8 are velvet fabric test report of the comparative example.
9 and 10 are velvet fabric test report of the embodiment according to the present invention.

Velvet fabric is a structure in which a pile structure (d) of a predetermined length is formed in the branch structure (c) consisting of the weft yarn (a) and the inclination (b), as shown in Figure 1, the pile structure exposed to the outside of the velvet fabric Plays an important role in determining characteristics.

In order to maintain the high quality of the velvet fabric, it is important to maintain the standing state of the pile and to prevent the branch tissue from being hidden by the pile. If it is configured, there is a problem that the stiffness of the touch, and if the number of piles is increased in order to cover the paper tissue with a pile, the touch is also not soft as the manufacturing cost increases accordingly.

In the present invention, the pile fineness of the velvet fabric is 135 denier or more, the cover factor is 85% or more, and the density of the surface is densified while the standing density of the pile is improved.

If the pile's fineness is less than 135 denier, the flexural strength is low, so it is easily bent as the external force is repeated, and the pile structure is easily damaged. Not desirable

In order to prevent the stiffness of the pile as the fineness of the pile becomes more than 135 denier, the number of filaments of the pile is preferably maintained at 34 or more, and the pile structure of the pile having more than 135 denier and 34 filaments It can be soft and high standing.

As described above, the velvet fabric in which piles of 135 deniers and 34 filaments or more are formed in a cover factor of 85% or more can be sufficiently covered with angular portions even when the pile is deformed to an angular shape, so that the tissue is not exposed to the outside. Appearance can be maintained.

In addition, it is preferable that the warp and weft yarn constituting the ground tissue have a strength of 4gf / d (load / denier) or more to firmly support the pile structure, and the pile has a strength of less than 4gf / d to have a soft texture. Do.

As a kind of fiber constituting the velvet fabric of the present invention, the warp and weft of the paper tissue use high strength nylon and polyester, and the pile may use primary yarn, pre-dyed yarn or undyed yarn (bright, dull) as acetate yarn. Acetate has the advantage that the touch is soft because the cross section is not sharp and round, and the cross section is wrinkled, so that the cross section is superior to nylon and polyester having a circular cross section.

Velvet fabrics are more difficult to express after dyeing than normal fabrics because of their morphological structure, and they are not easy to express vivid patterns through dyeing. Therefore, the acetate yarn file is required when color fastness and color fastness such as day fastness and washing fastness are required. Preference is given to using acetate primary yarns as materials.

Conventional velvet fabric of less than 120 denier acetate can be woven by a cam type heald drive device, but more than 150 denier velvet fabric takes a lot of tension, so it is difficult to work with a cam type heald drive device, and the length of the pile is fixed. And weaving is not easy.

Therefore, the velvet fabric of the present invention is preferable to weave the paper structure and pile structure by combining the cam type heald drive device and the dobby heald drive device, which is provided with both a cam type heald drive device and a dobby heald drive device in a velvet loom. If necessary, it is possible to manufacture the ground tissue and pile tissue by connecting to any one of the cam type or dobby type heald drive device, or to selectively manufacture the combination of these heald drive devices, thereby forming a velvet fabric. There is an effect that can provide a variety of velvet fabrics, such as densely or loosen the density of the tissue, and also allows the pile to be formed in a solid state, or to vary the uprightness of the pile.

Hereinafter, a velvet loom having a cam type heald drive device and a dobby heald drive device for weaving the velvet fabric of the present invention will be described.

FIG. 2 schematically shows a heald drive device of the velvet loom 1 for weaving the velvet fabric of the present invention, and FIG. 3 shows a state in which the heald light selected from the dobby heald drive device 10 is raised. 4 shows a state in which the selected heald 40 is lowered in the dobby heald drive device 10, and FIG. 5 shows a main part of the dobby heald drive device 10.

The velvet loom (1) is provided with a plurality of heald 40 for forming the paper texture and pile of the velvet fabric, dobby heald drive device 10 and cam type heald drive device for driving the heald 40 ( 20).

The cam-type heald drive device 20 is a cam box 22 is installed on one side of the velvet loom 1, the cam rod 23 is installed to interlock with the cam 21 installed in the cam box 22, The cam rod 23 and the heald 40 are configured to be connected by a wire 24.

The dobby type heald drive device 10 has a heald 40 and a pull rod 13 connected to a wire 12, and an upper portion of the pull rod 13 and an upper portion of the operating lever 14 are horizontal connecting rods 15. The lower end of the pull rod 13 and the operating lever 14 is installed in the frame so as to be rotatable.

The actuating lever 14 is provided with the upper and lower hook levers 2 and 3 with the vertical connecting rod 16 as an intermediate medium, and the upper and lower hook levers 2 are provided by the upper and lower hook bars 4 and 5. 3) is configured to alternately pull operation, in order to drive the upper and lower hanger (4) (5), the upper and lower hanger drive cam (6) (7) is installed in the frame.

The upper part of the supporting rod 8 for supporting the upper and lower hook levers 2 and 3 for selectively operating the heald 40 is coupled to move upward and downward through the support bar 9 and the lower end is operated. It is connected to the piece 17, the lower portion of the operating piece 17 is provided with a chain 31 is formed with a projection 30 for lifting the operating piece.

The power transmission unit 50 is composed of a chain gear, a chain and a bevel gear for driving the dobby type heald drive device 10 and the cam type heald drive device 20.

Each of the plurality of healds 40 is configured to be selectively connected to the dobby heald drive device 10 and the cam heald drive device 20, and FIG. 1 illustrates the case where eight healds 40 are provided. In the present invention, the installation quantity of heald 40 is not limited to this, and it is possible to weave various types of velvet fabric by increasing or decreasing the number of healds as necessary.

The velvet loom 1 configured as described above may be operated as follows.

The velvet fabric is formed by weaving the weft yarn and the warp yarn to form a weave, and weaving by forming a pile between the weave tissue, first determine the weaving method of the weft, warp yarn and pile of the velvet fabric to be weaved, and then Selectively, the paper heald for opening the paper tissue inclination and the filing heald for opening the pile are selectively connected to the wire 12 of the dobby heald drive device 10 and the wire 24 of the cam heald drive device 20. Connect.

A heald connected to the wire 24 is opened by the action of the cam 21 and the cam rod 23 of the cam heald drive device 20, and the action of the dobby heald drive device 10 is applied to the wire 12. The connected heald 40 is opened, and the weft is supplied thereto to form a paper tissue and a pile in the paper tissue.

Looking at this in more detail, the power transmission unit 50 transmits power to the dobby type heald drive device 10 and the cam type heald drive device 20 through a chain gear, chain, bevel gear to drive them, and received power In the dobby heald drive device 10, the chain 30 in which the protrusion 30 is formed is cyclically moved, and the protrusion 30 lifts the operating piece 17 at a predetermined time interval.

By the above operation, the supporting rod 8 connected to the operation piece 17 descends, and accordingly, the upper and lower hook levers 2 and 3 descend, and are caught by the upper and lower latches 4 and 5.

Also, the upper and lower hook levers 2 and 3 rotate the upper and lower hook driving cams 6 and 7 while the upper and lower hook levers 4 and 5 push the upper and lower hook levers 4 and 5, respectively. 5) caught and pulled.

Accordingly, the vertical connecting rod 16 connected to the upper and lower hook levers 2 and 3 is pulled, the operating lever 14 connected to the vertical connecting rod 16 is pulled, and the operating lever 14 and the horizontal connecting rod 15 are pulled out. The pull table 13 connected by) is pulled out.

By the above operation, the heald 13 is connected to the dowel type heald drive device 10 because it simultaneously opens the heald 40 connected by the pull rod 13 and the wire 12 and firmly holds the opened state and pulls it with a stable tension. When the heald is connected to the tissue, the form of the paper tissue is stabilized to maintain the file structure uniformly and stably, and when the heald is connected to the dobby heald drive device 10, the uprightness of the pile is improved and the length of the pile is kept constant. I can keep it.

Hereinafter, the present invention will be described in more detail with reference to the following examples, comparative examples and test examples.

It is to be understood, however, that the invention is not to be construed as limited to the embodiments set forth herein, but is capable of modifications and equivalents within the spirit and scope of the invention. Will be apparent to those skilled in the art to which the present invention pertains.

≪ Examples and Comparative Examples &

The ground heald was connected to the cam type heald drive device, and weaving the ground tissue using nylon 100 denier as the warp yarn and 75 denier polyester as the weft yarn, and the heald for the pile was connected to the dobby heald drive device. Using a acetate yarn having fineness and filament number, a velvety fabric was prepared by planting a tissue in a warp direction of 118 ol / inch and in a weft direction of 102 ol / inch.

The cover factor of the prepared velvet fabric was calculated based on the following formula and is shown in Table 1 below.

Cover factor (%) = Constant (K) × Pile fiber cross section × Number of piles per unit area ÷ Unit area × 100

-Constant (K): The pile is planted between the yarns forming the branch tissue and theoretically occupies 25% per unit area, so 100% criterion 4 is applied.

-Cross section of pile fiber = Denier ÷ 900000 ÷ Acetate fiber specific gravity

-Specific gravity of acetate fiber = 1.32

Fineness of pile (d) / number of filaments (F) Cover factor (%) Example 1 135d / 34F 85 Example 2 150d / 38F 94 Example 3 160d / 40F 100 Comparative example 120d / 30F 75

<Test Example>

The overall physical properties of the velvet fabric prepared in Example 2 and Comparative Example were measured by the Korea Textile Research Institute.

6 shows a total hand value (THV) measured by a Kaawabata Evaluation System, in which, Sample 1 is a velvet fabric of Comparative Example and Sample 2 is a velvet fabric of Example 2. FIG.

The texture value expresses the quality and quality by combining the touch when the fabric is touched with the visual and aesthetic sense when seen. The higher the numerical value in the range of 1 to 5, the better the characteristics.

As shown in Figure 6, the value of the comparative example (Sample 1) is 2.24 and the value of the Example (Sample 2) is measured to 3.31 so that the velvet fabric of Example 2 according to the present invention is excellent in touch and visual quality It can be seen that.

In addition, the test report of the comparative example is shown in Figures 7 and 8 and the test report of Example 2 is shown in Figures 9 and 10.

The KOSHI value shown in the figure is a measure of the stiffness of the fiber and represents the sense of plasticity, repulsive force, elasticity, etc. due to the touch of the hand.The higher the KOSHI value in the range of 0 to 10, the higher the repulsive force, elasticity, etc. High fiber shape can be maintained and beautiful appearance can be maintained.

The KOSHI value of the comparative example is 0.00 (FIG. 7), and the KOSHI value of Example 2 is measured to 5.15 (FIG. 9), so that the velvet fabric of Example 2 according to the present invention has high standing and external force acting repeatedly. It can be seen that can continue.

In addition, the velvet fabrics of Examples 1 to 3 and Comparative Example were placed on a flat surface and visually observed, and the surface of the velvet fabrics of Examples did not show paper tissues, but the velvet fabrics of Comparative Examples showed little paper texture between piles. It was found that the luxurious feel of the velvet fabric was reduced compared to the example.

In addition, it was also found that the velvet fabric of the Example was much softer than the comparative example even in the hand felt.

In addition, as a result of repeatedly pressing 10 times under a load of 100 kg / m 2, the piles of the examples were maintained in the standing state, but the piles of the comparative example were bent, and the surface state was partially damaged.

Therefore, in order to maintain the standing state of the pile to the maximum and to prevent the appearance damage by external force, and to increase the number of piles, the paper tissue is not exposed to the outside. It is 85-100%, KOSHI value is 3.5 or more, it can be seen that the filament number is 34 or more and the total THV is 2.5 or more to provide a soft touch.

a: weft, b: bevel, c: local, d: file,
1: Velvet loom, 2: Upper hook lever, 3: Lower hook lever, 4: Upper hanger, 5: Lower hanger, 6: Upper hanger drive cam, 7: Upper hanger drive cam, 8: Support rod, 9: Support span , 10: dobby heald drive, 12: wire, 13: pull rod, 14: operating lever, 15: horizontal connection, 16: vertical connection, 17: operating piece, 20: cam type heald drive, 21: cam, 22 : Cam box, 23: cam rod, 24: wire, 30: protrusion, 31: chain, 40: heald, 50: power transmission

Claims (4)

In the velvet fabric composed of branch and pile tissue,
The fineness of the pile is 135 denier or more and the number of filaments is 34 or more,
The THV is 2.5 or more, and the KOSHI value is 3.5 or more.
The cover factor is 85 to 100% high density velvet fabric. The method according to claim 1,
The pile is a high density velvet fabric, characterized in that the yarn. The method according to claim 1,
The velvet fabric is a high-density velvet fabric, characterized in that the woven fabric by selectively connecting the paper tissue and pile tissue to the cam type heald drive device and dobby type heald drive device. The method according to claim 1,
The paper fabric of the velvet fabric is connected to the cam type heald drive device, and the pile structure is connected to the dobby type heald drive device, characterized in that the woven woven high density.

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