WO2000068493A1 - Preparation of bast fiber fabric-like rayon-containing fabrics - Google Patents
Preparation of bast fiber fabric-like rayon-containing fabrics Download PDFInfo
- Publication number
- WO2000068493A1 WO2000068493A1 PCT/KR2000/000275 KR0000275W WO0068493A1 WO 2000068493 A1 WO2000068493 A1 WO 2000068493A1 KR 0000275 W KR0000275 W KR 0000275W WO 0068493 A1 WO0068493 A1 WO 0068493A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rayon
- fabrics
- bast fiber
- containing fabrics
- mercerization
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
- D06M11/40—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table combined with, or in absence of, mechanical tension, e.g. slack mercerising
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
Definitions
- the present invention relates, in general, to rayon- containing fabrics and, more particularly, to the preparation of rayon-containing fabrics that feel like bast fiber fabrics.
- rayon-containing fabrics as used herein means all fabrics that are composed of rayon fibers not only wholly, but also partially.
- the cellulose After being deprived of the sodium hydroxide, the cellulose is let to experience shredding, aging, xanthation, mixing, filtering and ripening to produce a viscose solution suitable for spinning. Then, the viscose solution is spun through a spinneret and passed through a coagulation bath to yield viscose rayon fibers.
- Mercerization is usually applied for the solubilization of cellulose in making rayon fibers, but has not yet been used for the finishing of rayon fabrics for the fear that the fabrics would be damaged.
- the intensive and thorough research on the preparation of rayon-containing fabrics, repeated by the present inventors resulted in the finding that mercerization does not damage, but allows cotton-rayon blended fabrics to be improved in luster and dye absorptivity and to feel like bast fiber fabrics. Therefore, it is an object of the present invention to provide a method for preparing rayon-containing fabrics that feel like bast fiber fabrics.
- Mercerization is a finishing technique used to increase luster such as that of silk, dye absorptivity, and strength in cotton and linen goods: the cloth is put into a heated solution of caustic soda, e.g., NaOH, at a controlled temperature, then washed, neutralized, and rinsed. It is mercerized while being tensioned or in a relaxed condition. Usually, mercerization is conducted under a tension.
- caustic soda e.g., NaOH
- the present invention is characterized in that mercerization is applied to rayon-containing fabrics, which have been known as unable to be mercerized owing to the erosion or damage by caustic soda, to alter the surface condition of rayon fibers, allowing the rayon-containing fabrics to feel like bast fiber fabrics.
- This effect is attributed to the fact that the caustic soda reacts with the rayon fibers to make their surface stiff.
- the solubilization of rayon in a solution of caustic soda requires that the concentration and temperature of the caustic soda solution, and the processing period of time should be controlled with dependence on a desired level in the sense of touch and the use of the fabrics.
- the mercerization of rayon-containing fabrics is preferably conducted at a sodium hydroxide concentration of 14 Be° or more at not more than 25 °C and more preferably at a sodium hydroxide concentration of 23-25 Be° at 15-18 °C, but these conditions do not limit the scope of the present invention.
- rayon- containing fabrics are preferably mercerized in a shorter period of time.
- Neutralization of the rayon-containing fabrics with an agent preferably follows the mercerization.
- a dobby fabric made of cotton and rayon plied fibers was mercerized by passage at a speed of 20 m/min through a bath containing a concentration of 23-25 Be 0 of a sodium hydroxide solution maintained at 15 °C, and then, neutralized by passage at a speed of 30 m/min through a bath containing an aqueous acetic acid solution maintained at 80 °C.
- the dobby fabric was dyed by being immersed in a dye solution at 80 °C for 60 min.
- Example When being compared, the two fabrics obtained in Example and Comparative Example were different from each other in the sense of touch.
- the fabric which experienced the mercerization of Example provided the same sense of touch as that of bast fiber fabrics.
- no similarity in the sense of touch was found between the fabric of Comparative Example and bast fiber fabrics.
- the fabric of Example was found to be as good in strength as the fabric of Comparative Example.
- rayon-containing fabrics which can be mass-produced, can be provided with the same sense of touch as that of bast fiber fabrics, in accordance with the present invention.
- the present invention has been described in an illustrative manner, and it is to be understood that the terminology used is intended to be in the nature of descriptions rather than of limitation. Many modifications and variations of the present invention are possible in light of the above teachings. Therefore, it is to be understood that within the scope of the appended claims, the invention may be practiced otherwise than as specifically described.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
Disclosed is a method to provide rayon-containing fabrics with the same sense of touch as that of bast fiber fabrics. Rayon-containing fabrics are mercerized in a solution of caustic soda which is controlled in concentration and temperature. The method allows the mass production of the fabrics that feel like bast fiber fabrics.
Description
PREPARATION OF BAST FIBER FABRIC-LIKE RAYON-CONTAINING FABRICS
BACKGROUND OF THE INVENTION
The present invention relates, in general, to rayon- containing fabrics and, more particularly, to the preparation of rayon-containing fabrics that feel like bast fiber fabrics. The term "rayon-containing fabrics" as used herein means all fabrics that are composed of rayon fibers not only wholly, but also partially.
For eons, fabrics made of hemp or ramie have been extensively used as materials for the production of summer season or warm climate clothing due to their being ventilative and feeling stiff to the touch. Such natural fiber fabrics are, however, virtually impossible to produce on a large scale because they involve much labor and require intricate procedures for their preparation. Accordingly, there is always an undersupply of the fabrics, resulting in an increase in their price. As for viscose rayon fibers, their preparation generally begins with a pulp sheet containing about 90-94 % pure cellulose through a so-called steeping or mercerizing process. That is, immersion of the pulp sheet in a 17.5% NaOH solution allows the cellulose to be solubilized to give alkaline cellulose. After being deprived of the sodium hydroxide, the
cellulose is let to experience shredding, aging, xanthation, mixing, filtering and ripening to produce a viscose solution suitable for spinning. Then, the viscose solution is spun through a spinneret and passed through a coagulation bath to yield viscose rayon fibers.
SUMMARY OF THE INVENTION
Knowledge of mercerization allows modification and adaptation leading to the present invention. Mercerization is usually applied for the solubilization of cellulose in making rayon fibers, but has not yet been used for the finishing of rayon fabrics for the fear that the fabrics would be damaged. However, the intensive and thorough research on the preparation of rayon-containing fabrics, repeated by the present inventors, resulted in the finding that mercerization does not damage, but allows cotton-rayon blended fabrics to be improved in luster and dye absorptivity and to feel like bast fiber fabrics. Therefore, it is an object of the present invention to provide a method for preparing rayon-containing fabrics that feel like bast fiber fabrics.
It is another object of the present invention to provide a method for preparing bast fiber fabric-like rayon-containing fabrics at a low cost on a large scale.
Based on the present invention, the above objects could be accomplished by a provision of a method for preparing bast fiber fabric-like rayon-containing fabrics, in which rayon- containing fabrics are let to experience mercerization, whereby the rayon-containing fabrics feel like bast fiber fabrics.
DETAILED DESCRIPTION OF THE INVENTION
Mercerization is a finishing technique used to increase luster such as that of silk, dye absorptivity, and strength in cotton and linen goods: the cloth is put into a heated solution of caustic soda, e.g., NaOH, at a controlled temperature, then washed, neutralized, and rinsed. It is mercerized while being tensioned or in a relaxed condition. Usually, mercerization is conducted under a tension.
The present invention is characterized in that mercerization is applied to rayon-containing fabrics, which have been known as unable to be mercerized owing to the erosion or damage by caustic soda, to alter the surface condition of rayon fibers, allowing the rayon-containing fabrics to feel like bast fiber fabrics. This effect, to our knowledge, is attributed to the fact that the caustic soda reacts with the rayon fibers to make their surface stiff. When mercerization is conducted for rayon-containing
fabrics, the solubilization of rayon in a solution of caustic soda requires that the concentration and temperature of the caustic soda solution, and the processing period of time should be controlled with dependence on a desired level in the sense of touch and the use of the fabrics. The mercerization of rayon-containing fabrics is preferably conducted at a sodium hydroxide concentration of 14 Be° or more at not more than 25 °C and more preferably at a sodium hydroxide concentration of 23-25 Be° at 15-18 °C, but these conditions do not limit the scope of the present invention. As the sodium hydroxide solution is higher in concentration, rayon- containing fabrics are preferably mercerized in a shorter period of time.
Neutralization of the rayon-containing fabrics with an agent preferably follows the mercerization.
A better understanding of the present invention may be obtained in light of the following examples which are set forth to illustrate, but are not to be construed to limit the present invention.
EXAMPLE
A dobby fabric made of cotton and rayon plied fibers was mercerized by passage at a speed of 20 m/min through a bath containing a concentration of 23-25 Be0 of a sodium hydroxide
solution maintained at 15 °C, and then, neutralized by passage at a speed of 30 m/min through a bath containing an aqueous acetic acid solution maintained at 80 °C. The dobby fabric was dyed by being immersed in a dye solution at 80 °C for 60 min.
COMPARATIVE EXAMPLE
The same procedure as in Example was repeated except that the mercerization and the neutralization were not conducted.
When being compared, the two fabrics obtained in Example and Comparative Example were different from each other in the sense of touch. The fabric which experienced the mercerization of Example provided the same sense of touch as that of bast fiber fabrics. In contrast, no similarity in the sense of touch was found between the fabric of Comparative Example and bast fiber fabrics. In addition, the fabric of Example was found to be as good in strength as the fabric of Comparative Example.
As described hereinbefore, rayon-containing fabrics, which can be mass-produced, can be provided with the same sense of touch as that of bast fiber fabrics, in accordance with the present invention. The present invention has been described in an
illustrative manner, and it is to be understood that the terminology used is intended to be in the nature of descriptions rather than of limitation. Many modifications and variations of the present invention are possible in light of the above teachings. Therefore, it is to be understood that within the scope of the appended claims, the invention may be practiced otherwise than as specifically described.
Claims
1. A method for preparing bast fiber fabric-like rayon- containing fabrics, in which rayon-containing fabrics are let to experience mercerization, whereby the rayon-containing fabrics feel like bast fiber fabrics.
2. A method as set forth in claim 1, wherein the mercerization is conducted at a sodium hydroxide concentration of more than 14 Be° at a temperature of less than 25 °C.
3. A method as set forth in claim 2, wherein the mercerization is conducted at a sodium hydroxide concentration of 23-25 Be° at a temperature of 15-18 °C.
4. A method as set forth in claim 1, wherein the rayon- containing fabrics are those that are composed of rayon fibers wholly or partially.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1999/16732 | 1999-05-11 | ||
| KR1019990016732A KR19990064802A (en) | 1999-05-11 | 1999-05-11 | Processing method which let textiles mixing rayon and cotton keep the feeling of flax textiles |
| KR1020000005047A KR100329501B1 (en) | 1999-05-11 | 2000-02-02 | Preparation of rayon-containing fabric having the touch of bast fiber fabric |
| KR2000/5047 | 2000-02-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2000068493A1 true WO2000068493A1 (en) | 2000-11-16 |
Family
ID=26635104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2000/000275 Ceased WO2000068493A1 (en) | 1999-05-11 | 2000-03-29 | Preparation of bast fiber fabric-like rayon-containing fabrics |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100329501B1 (en) |
| WO (1) | WO2000068493A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100329501B1 (en) * | 1999-05-11 | 2002-03-23 | 윤여훈 | Preparation of rayon-containing fabric having the touch of bast fiber fabric |
| CN102251404A (en) * | 2011-05-09 | 2011-11-23 | 张家港耐尔纳米科技有限公司 | Preparation method of linnet cotton yarn |
| US10793984B2 (en) | 2016-08-04 | 2020-10-06 | Pvh Corporation | Non-iron fabrics and garments, and a method of finishing the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4163840A (en) * | 1975-05-09 | 1979-08-07 | Fiber Associates, Inc. | Process and apparatus for making alkali cellulose in sheet form |
| US4269973A (en) * | 1975-05-09 | 1981-05-26 | Fiber Associates, Inc. | Process and apparatus for making alkali cellulose in sheet form |
| US5482776A (en) * | 1988-10-05 | 1996-01-09 | Asahi Kasei Kogyo Kabushiki Kaisha | Viscose rayon fiber having superior appearance |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0351366A (en) * | 1989-07-20 | 1991-03-05 | Kao Corp | Rayon fiber of carboxymethylated viscose method and production thereof |
| KR100248117B1 (en) * | 1993-12-30 | 2000-04-01 | 조민호 | Manufacturing method of composite fabric with excellent physical properties |
| KR100329501B1 (en) * | 1999-05-11 | 2002-03-23 | 윤여훈 | Preparation of rayon-containing fabric having the touch of bast fiber fabric |
-
2000
- 2000-02-02 KR KR1020000005047A patent/KR100329501B1/en not_active Expired - Fee Related
- 2000-03-29 WO PCT/KR2000/000275 patent/WO2000068493A1/en not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4163840A (en) * | 1975-05-09 | 1979-08-07 | Fiber Associates, Inc. | Process and apparatus for making alkali cellulose in sheet form |
| US4269973A (en) * | 1975-05-09 | 1981-05-26 | Fiber Associates, Inc. | Process and apparatus for making alkali cellulose in sheet form |
| US5482776A (en) * | 1988-10-05 | 1996-01-09 | Asahi Kasei Kogyo Kabushiki Kaisha | Viscose rayon fiber having superior appearance |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100329501B1 (en) * | 1999-05-11 | 2002-03-23 | 윤여훈 | Preparation of rayon-containing fabric having the touch of bast fiber fabric |
| CN102251404A (en) * | 2011-05-09 | 2011-11-23 | 张家港耐尔纳米科技有限公司 | Preparation method of linnet cotton yarn |
| US10793984B2 (en) | 2016-08-04 | 2020-10-06 | Pvh Corporation | Non-iron fabrics and garments, and a method of finishing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20000024271A (en) | 2000-05-06 |
| KR100329501B1 (en) | 2002-03-23 |
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