WO2009048293A1

WO2009048293A1 - A method of manufacturing on silk fabrics and silk fabrics made by the same

Info

Publication number: WO2009048293A1
Application number: PCT/KR2008/005971
Authority: WO
Inventors: Hyeon Kuk Baek; Il Gwon Jeong
Original assignee: Ecogreenpia Co., Ltd.
Priority date: 2007-10-11
Filing date: 2008-10-10
Publication date: 2009-04-16
Also published as: KR100845925B1

Abstract

The present invention relates to a method for manufacturing a silk fabric and a silk fabric made by the same wherein a 100% silk fabric is processed physically by using a nap-raising machine, such that a surface of the silk fabric becomes smooth, thereby preventing skin allergies easily occurring on sensitive skin when the silk fabric is made of chemical fibers and alternatively when it is subjected to a chemical processing treatment, and silk amino acid components are provided to a wearer's skin, thereby giving an effect of improving skin diseases, which makes it possible to produce in great large quantities functional towels, functional clothing, and underwear having high heat-keeping performance.

Description

A METHOD OF MANUFACTURING ON SILK FABRICS AND SILK FABRICS MADE BY THE SAME

Technical Field

[1] [01] The present invention relates to a method for manufacturing a silk fabric and a silk fabric made by the same, and more particularly, to a method for manufacturing a silk fabric and a silk fabric made by the same wherein a 100% silk fabric is processed physically by using a nap-raising machine, such that a surface of the silk fabric becomes smooth, thereby preventing skin allergies easily occurring on sensitive skin when the silk fabric is made of chemical fibers and alternatively when it is subjected to a chemical processing treatment, and silk amino acid components are provided to a wearer's skin, thereby giving an effect of improving skin diseases, which makes it possible to produce in great large quantities functional towels, functional clothing, and underwear having high heat-keeping performance. Background Art

[2] [02] Generally, fabrics made of general cotton yarns have a relatively rough surface, and if they come into contact with a wearer's skin, they may damage his or her healthy skin cells. Besides, if he or she has a sensitive skin, the fabrics may cause skin allergies.

[3] [03] So as to solve the conventional problems that when fabrics come into contact with the wearer's skin, a variety of skin diseases occur to him or her, Korean Patent Open-Laid Gazette No. 2002-0039888 discloses a skin care pack and a method for manufacturing the same wherein oriental medicine stuffs and aloe are added when making the skin care pack. Furthermore, Korean Patent Open-Laid Gazette No. 2002-0074767 discloses an oriental sanitary skin towel pack made of oriental medicine stuffs like sappan wood, Glycyrrhize uralensis, and so on.

[4] [04] Further, there is a conventional method for manufacturing a towel by using bamboo fibers as functional fibers wherein cotton yarns as weft are supplied to repeatedly move in a horizontal direction with respect to cotton yarns as warp such that the underside surface of the towel is made of the cotton yarns and the top surface of the towel is made of the bamboo fibers. Also, Korean Patent Open-Laid Gazette No. 2007-0093013 discloses a method for manufacturing a cotton linter towel using natural fibers made by processing cotton and cotton linter in place of the bamboo fibers.

[5] [05] However, the fabrics used for the towels made of oriental medicine stuffs or functional fibers also have a limitation in preventing the occurrence of the skin damages and in supplying nutritional components to the wearer. [6] [06] On the other hand, there are proposed various conventional methods for removing chloasma generated on skin and preventing skin damages. Among them, Korean Patent Open-Laid Gazette No. 2002-0074767 as mentioned above discloses a skin towel pack using oriental medicine stuffs, Korean Patent Open-Laid Gazette No. 2002-87886 discloses a device and method for removing chloasma generated on skin by using middle frequencies, Korean Patent Open-Laid Gazette No. 2002-86690 discloses a wet wipe containing cationic fatty acid surfactant, Korean Patent Open- Laid Gazette No. 2002-39888 as mentioned above discloses a skin care pack and a method for manufacturing the same, Korean Patent No. 357416 discloses a whitening cosmetics composition containing specific plant extracts, Korean Patent No. 355892 discloses skin care composition containing retinol and tetradibutyl pentaerythrityl hy- droxyhydrocinnamate, Korean Patent No. 338399 discloses skin whitening composition containing laser whitening agent, and Korean Patent Open-Laid Gazette No. 2001-8007 discloses a method for manufacturing skin cleansing water.

[7] [07] However, these conventional methods should use specific materials having skin care and whitening functions, and therefore, so as to remove the chloasma generated on skin, they should contain the specific materials.

[8] [08] Also, the conventional general functional fabrics make use of chemical fibers or chemical processing, and if clothing is manufactured through the chemical processing, skin allergies may occur to sensitive skin.

[9] [09] So as to overcome the above-mentioned problems, there is proposed Korean

Utility Model Publication No. 95-29480 discloses a massage silk towel made of silk, wherein one surface thereof is composed of cotton fabric towel and a separate support plate is formed, thereby making it inconvenient to use. Further, since no silk processing is made, the silk towel is not adequate to sensitive skin.

[10] [10] Korean Patent No.0550412 entitled 'method for manufacturing silk skin care towel for removing spot on skin and a silk skin care towel for removing spot on skin made by using the method', which is issued to this inventor and has been put into practical use.

[11] [11] The conventional method includes: the first step of fabricating a silk fabric formed of 100% silk yarns having small intersecting points; the second step of physically processing the surface of the silk fabric by means of sueded or sandwash processing; and the third step of cutting the physically processed silk fabric to a towel shape easily held by a user's hand and folding the cut edge of the silk fabric so as to finish the cut edge and the folded edge thereof by means of interlocking, such that the silk fabric becomes substantially smooth, thereby minimizing the skin damage caused when it rubs against skin and effectively removing the chloasma, freckles, and dark spots generated on the face that is the most sensitive region of a women's body, without any ill effects like skin allergies.

[12] [12] Furthermore, this inventor proposes to a novel method for manufacturing a silk fabric and a silk fabric made by the same wherein a 100% silk fabric has a function of improving skin diseases by supplying silk amino acid components to a wearer's skin, while preventing skin allergies easily occurring on sensitive skin when the silk fabric is made of chemical fibers and alternatively when it is subjected to a chemical processing treatment, thereby making it possible to produce in great large quantities functional towels, functional clothing, and underwear having high heat-keeping performance. Disclosure of Invention Technical Problem

[13] [13] Accordingly, the present invention has been made in view of the above- mentioned problems occurring in the prior art, and it is an object of the present invention to provide a method for manufacturing a silk fabric and a silk fabric made by the same wherein a 100% silk fabric is processed physically by using a nap-raising machine, such that a surface of the silk fabric becomes smooth, thereby preventing skin allergies easily occurring on sensitive skin when the silk fabric is made of chemical fibers and alternatively when it is subjected to a chemical processing treatment, and silk amino acid components are provided to a wearer's skin, thereby giving an effect of improving skin diseases, which makes it possible to produce in great large quantities functional towels, functional clothing, and underwear having high heat-keeping performance.

[14] [14] To accomplish the above object, according to the present invention, there is provided a method for manufacturing a silk fabric including the steps of: twisting a weft yarn formed of 100% silk of two folded 100 to 110 filaments to a twisting range under 500 t/m and weaving the twisted weft yarn and a warp yarn formed of 40 to 42 filaments, thereby forming a silk fabric; performing degumming and dyeing for the silk fabric at a temperature under 9O⁰C for 30 to 40 minutes, absorbing the water in the silk fabric by using an absorber, and drying the silk fabric at a temperature under 8O⁰C, while having minimized tension applied thereto; and forming loop naps on the surface of the dried silk fabric by using a nap-raising machine.

[15] [15] According to the present invention, the nap-raising machine includes wire raising machineor inverter, and the loop nap-forming process is performed eight times (the total of sixteen times) by using two nap-raising machines cooperated with each other.

[16] [16] At the loop nap-forming process first to third times, so as to make counter naps weakened and pile naps strengthened to allow the loops to be extended to the maximum extent, a drum rotation speed is in a range from 180 rpm to 190 rpm, the counter pile drum speed is lowered to a range from 5% to 10%, the pile drum speed is raised to a range from -10% to -15%, and an advancing speed (the processing speed of the fabric per minute) is 20m.

[17] [17] At the loop nap-forming process fourth and fifth times, the drum rotation speed is in a range of 200 rpm, the counter pile drum speed is raised to a range from 15% to 20%, and the pile drum speed is lowered to a range of -0.5%.

[18] [18] At the loop nap-forming process sixth and seventh times, the drum rotation speed is in a range of 200 rpm, the counter pile drum speed is raised higher by 2% than that in the loop nap-forming process the second time, and the pile drum speed is the same as that the third time.

[19] [19] At the loop nap-forming process the eighth time, the drum rotation speed and the counter pile drum speed are raised, thereby finishing the formation of the naps on the surface of the silk fabric.

[20] [20] By using the silk fabric produced by the above-mentioned processes, functional towels and functional clothing can be produced, which prevent skin diseases from occurring on skin and provide skin cleansing effects. Furthermore, they provide nutritive components to the skin through the supply of silk amino acid. Technical Solution

[21] [21] According to the present invention, there is provided a method for manufacturing a silk fabric wherein a raw yarn is desirably formed of 100 filaments and has a twisting range under 500 t/m, such that the weft part is napped by using fine fillets for the physical processing of the 100% silk, thereby obtaining a peach skin effect.

[22] [22] That is, the naps may be of course formed just on the surface of the silk fabric, so as to obtain the peach skin effect, but only when the weft is pulled to contract a predetermined portion of the fabric and is then cut, the silk fabric can be utilized as a product even at the state where the weft yarn is cut, without any property changes. Therefore, the weft has 42 filaments or another thickness, but it is desirable that at the nap-raising process the weft should have the two folded 100 to 110 filaments to a twisting range under 500t/m and the warp should have 40 to 42 filaments.

[23] [23] At this time, the warp having the thickness of the 42 filaments has more reduced defect causes than that having the thickness of 21 filaments. The difference of the thicknesses of the warp yields the defect causes during the nap-raising process.

[24] [24] The warp having 270 to 320 patterns is tested, and 70 to 80 weft yarns per one inch are woven.

[25] [25] At this time, the number of the naps is greatly changed in accordance with the differences of the number of the patterns of the warp, and the difference of the number of the naps formed on the silk fabric causes the difference of the contraction. The contraction is in a range from 15% to 35%, and the silk fabric is woven in consideration of the thickness or strength of the raw fabric according to the characteristics of the product.

[26] [26] So as to perform the processing for the woven silk fabric, a substantially small amount of stress should be applied to the raw yarns, and therefore, an appropriate temperature is needed. Further, the carefulness in the difference of an amount of silk amino acid is needed.

[27] [27] As a general process, if the silk fabric is processed at a temperature above 100⁰C

(in a range from 12O⁰C to 14O⁰C), the contraction at the nap-raising process appears under 5%, and if the processing is kept, dropping is caused to lose the function as the fabric.

[28] [28] Therefore, degumming and dyeing for the silk fabric are performed at a temperature under 9O⁰C for 30 to 40 minutes, and the acid treatment as a part of the degumming process is performed in the intermediate process of the degumming operation, not in the final process thereof, such that the smell generated from the silk fabric can be removed. Also, this is performed in the same manner as the dyeing process.

[29] [29] During a drying process, if the silk fabric is passed through a mangle device that is rotated to absorb the water from the silk fabric in state of being closed, impact is applied to the silk fabric. So as to reduce the impact applied to the silk fabric, thus, a natural drying process is adopted in the method of this invention. That is, the water in the silk fabric is absorbed by using an absorber, and the silk fabric is dried at a temperature under 8O⁰C, while having minimized tension applied thereto.

[30] [30] The dried silk fabric is just rolled, without any tenter process. Then, the loop naps are formed on the surface of the dried silk fabric by using a nap-raising machine.

[31] [31] The nap-raising machine includes wire raising machineor inverter, and the loop nap-forming process is performed eight times (the total of sixteen times) by using two nap-raising machines cooperated with each other.

[32] [32] As the speed of each drum is lowered or raised, the tension of the warp can be adjusted, which is obvious to those skilled in the art.

[33] [33] That is, at the loop nap-forming process first to third times, so as to make counter naps weakened and pile naps strengthened to allow the loops to be extended to the maximum extent, a drum rotation speed is in a range from 180 rpm to 190 rpm, the counter pile drum speed is lowered to a range from 5% to 10%, the pile drum speed is raised to a range from -10% to -15%, and an advancing speed (the processing speed of the fabric per minute) is 20m. At the loop nap-forming process fourth and fifth times, the drum rotation speed is in a range of 200 rpm, the counter pile drum speed is raised to a range from 15% to 20%, and the pile drum speed is lowered to a range of -0.5%. At the loop nap-forming process sixth and seventh times, the drum rotation speed is in a range of 200 rpm, the counter pile drum speed is raised higher by 2% than that in the loop nap-forming process the second time, and the pile drum speed is the same as that the third time. At the loop nap-forming process the eighth time, the drum rotation speed and the counter pile drum speed are raised, thereby finishing the formation of the naps on the surface of the silk fabric.

[34] [34] Referring to FIG.4 showing the processes for manufacturing the silk fabric, first, the thicknesses of the weft and warp formed of 100% silk yarns are determined. Next, the silk fabric is woven by using the determined weft and warp. Then, the woven silk fabric is subjected to degumming and dyeing, and after that, it is dried. Next, the dried silk fabric is subjected to nap-raising process and nap-cutting process, thereby completing the production of the silk fabric. By using the silk fabric, a variety of products like functional skin care towels, functional clothing, and products having a function of improving skin diseases. Now, preferred embodiments of this invention for the products will be described.

[35] [35] [First Embodiment]

[36] [36] According to a method for manufacturing a functional skin care towel, as shown in FIG.1 or 2, the functional skin care towel was made by putting foam 2 inside a silk fabric 1 and sewing the silk fabric 1, thereby enhancing the contact degree with skin, that is, the frictional force against skin curves, by means of the elastic restoring force of the foam 2. As shown in the enlarged portion of FIG.l or 2, naps 11 were formed on the surface of the silk fabric 1, thereby obtaining a high effect of removing skin macula, and further the formation of the naps 11 provided no irritation to sensitive skin, thereby preventing the generation of skin troubles.

[37] [37] In other words, the silk fabric 1 was formed of 100% silk yarns having an excellent quality like raw silk yarns, spun silk yarns, and so on, and it was woven with extremely small intersection points like satin fabrics.

[38] [38] At this time, the weft of the silk fabric had the two folded 100 to 110 filaments and the twisting range under 500t/m, and when the weft was pulled to contract a predetermined portion of the fabric and was then cut, so as to obtain the peach skin effect, the silk fabric didn't have any property changes even at the state where the weft yarn was cut.

[39] [39] [Second Embodiment]

[40] [40] According to a method for manufacturing functional clothing, as shown in

FIG.3, the inside of the functional clothing was formed of silk yarns and the outside thereof was formed of the warp used for general clothing fabric like poly.

[41] [41] In this embodiment, so as to make the functional clothing smoother than a physically processed fabric, the nap-raising was performed on the inner surface of the woven silk fabric by using the fillets of the nap-raising machine, which include substantially fine needles. Then, the naps formed on the inner surface of the silk fabric were cut to a given height by using a shearing machine. Finally, fine particles accumulated on the silk fabric during the nap-raising and shearing processes were removed by using a diamond brush to which diamond powder was applied. At this time, the nap-raising and shearing processes were performed repeatedly two or three times, thereby allowing the surface of the silk fabric to be smoother.

[42] [42] Especially, if the functional clothing is applied to underwear, the smoothly processed inside surface comes into contact with a wearer's skin, which reacts to a sympathetic nervous system, thereby making the wearer feel comfortable physically and mentally, enhancing his or her immunity to make his or her metabolism more activated, and accelerating the recovery of his or her fatigue.

[43] [43] As described above, there is provided the method for manufacturing a silk fabric and the silk fabric made by the same wherein the 100% silk fabric is processed physically on the surface thereof by using the nap-raising machine to form the multiplicity of naps thereon, such that the surface of the silk fabric becomes smooth and the silk amino acid components are provided to a wearer's skin, thereby preventing skin allergies easily occurring on sensitive skin when the silk fabric is made of chemical fibers and alternatively when it is subjected to a chemical processing treatment, and giving an effect of improving skin diseases, which makes it possible to produce in great large quantities functional towels, functional clothing, and underwear having high heat-keeping performance.

[44] [44] While the present invention has been described with reference to the particular illustrative embodiments, it is not to be restricted by the embodiments but only by the appended claims. It is to be appreciated that those skilled in the art can change or modify the embodiments without departing from the scope and spirit of the present invention.

Advantageous Effects

[45] [45] According to the present invention, there is provided a method for manufacturing a silk fabric wherein a raw yarn is desirably formed of 100 filaments and has a twisting range under 500 t/m, such that the weft part is napped by using fine fillets for the physical processing of the 100% silk, thereby obtaining a peach skin effect. Brief Description of the Drawings

[46] [01] The above and other objects, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the invention in conjunction with the accompanying drawings, in which:

[47] [02] FIG.l is a partly enlarged view showing the nap-raising state of 100% silk after the nap-raising operation for a silk fabric made by using a method for manufacturing the silk fabric according to the present invention; [48] [03] FIG.2 is a perspective view showing a skin care towel using 100% silk fabric after the nap-raising operation of the present invention; [49] [04] FIG.3 is a perspective view showing clothing using 100% silk fabric after the nap-raising operation of the present invention; and [50] [05] FIG.4 is a flow chart showing a method for manufacturing a silk fabric according to the present invention.

Claims

[1] A method for manufacturing a silk fabric comprising the steps of: twisting a weft yarn formed of 100% silk of two folded 100 to 110 filaments to a twisting range of 500 t/m and weaving the twisted weft yarn and a warp yarn formed of 40 to 42 filaments, thereby forming a silk fabric; performing degumming and dyeing for the silk fabric at a temperature under

9O⁰C for 30 to 40 minutes, absorbing the water in the silk fabric by using an absorber, and drying the silk fabric at a temperature under 8O⁰C, while having minimized tension applied thereto; and forming loop naps on the surface of the dried silk fabric by using a nap-raising machine.

[2] The method according to claim 1, wherein the nap-raising machine includes wire raising machineor inverter.

[3] The method according to claim 1, wherein the loop nap-forming process is performed eight times (the total of sixteen times) by using two nap-raising machines cooperated with each other, and wherein at the loop nap-forming process first to third times, so as to make counter naps weakened and pile naps strengthened to allow the loops to be extended to the maximum extent, a drum rotation speed is in a range from 180 rpm to 190 rpm, the counter pile drum speed is lowered to a range from 5% to 10%, the pile drum speed is raised to a range of -10% to -15%, and an advancing speed (the processing speed of the fabric per minute) is 20m; at the loop nap-forming process fourth and fifth times, the drum rotation speed is in a range of 200 rpm, the counter pile drum speed is raised to a range from 15% to 20%, and the pile drum speed is lowered to a range of -0.5%; at the loop nap-forming process sixth and seventh times, the drum rotation speed is in a range of 200 rpm, the counter pile drum speed is raised higher by 2% than that in the loop nap-forming process the second time, and the pile drum speed is the same as that the third time; and at the loop nap-forming process the eighth time, the drum rotation speed and the counter pile drum speed are raised, thereby finishing the formation of the naps on the surface of the silk fabric.

[4] A silk fabric manufactured by the method according to any one of claims 1 to 3.

[5] A functional towel made by using the silk fabric manufactured according to claim 4.

[6] Functional clothing made by using the silk fabric manufactured according to claim 4.