Study on the Chemical Modification Process of Jute Fiber

Submitted toDr.Hosne Ara BegumAssociate Professor &

Head Department of YME

Submitted byPranob Halder

YMEId:2015-2-1-13

In a Nutshell

Degumming of prechlorite treated jute fiber was studied in this presentation

Here –prechlorite means.Jute isTreated in a bath with sodium chlorite1.5 g/l,ph-3,liquor ratio-1:10 kept at 30 degree centigrade and then Throughly washed.

Prechlorite treated jute fiber

Fig:Degumming process of jute

Recipe:

1.sodium hydroxide of 12g/L2. sodium silicate of 3g/L3. TF-107B of 2g/L, TF-125A of 2g/L4.Liquor ratio-1:20

Are kept at 100 degree temperature for 105 min.

Evaluate :

Effecet of - • Sodium Hydroxide Concentration• Sodium silicate Concentration• Time & Temperature• Liquor ratio• Penetrating agent Concentration• Degumming agent Concentration

IntroductionJute has some grate advantages:

• Natural Biodegradable• High Tensile Strength• Excellent Thermal Conductivity• Coolness• Ventilation function

Improved civilization

Ramie

Flax

Hemp

Constitutent

1.Cellulose: 55-65%2.Hemi cellulose:14-20%3.Lignin: 12-13%4.Moisture Content:13.75%5.Pectin: 0.2%6.Wax: 0.5%

Spin-unability:Due to

Small unit of cellulose

Coarseness Stiffness

Low extensibility & grip performance

Materials

Lightly combed and dewaxed raw jute fiber (Bengal

Chemicals

And

Scouring Process

Fiber Load

30 TF107B

TF125

Sodiamsilicate

40

NaOH

100*60\

80

Wash

Recipe:1.NaOH:5-3g/l2.Sodium silicate: 1-5 g/l3.TF107B:0.5-6.0 g/l4.TF125A:1-8 g/l5.Temp:100 degree6.Time:60-240 min

Formula

Pretreated jute fiber was treated with different sodium hydroxide concentration viz. 5g/L, 10g/L, 20g/L, 30g/L, and the solution was made with sodium silicate 3.0g/L, TF-107B 2.0g/L, TF-125A 2.0g/L, fiber to liquor ratio 1:20, and treated at 98 for 120 min℃

Effect of NaOH Concentration

66.5%

15

• pretreated jute fiber was treated for different time viz. 60 min., 90 min., 120 min., 180 min., 240 min., and the solution was made with sodium hydroxide 10g/L, sodium silicate 3.0g/L, TF107-B 2.0g/L, TF-125A 2.0g/L, fiber to liquor ratio 1:20, and treated at 98 ,℃

Effect of Time

120 min

Effect of Temperature

Effecet of Sodium silicate

72.6%

Effect of fiber to liquor ratio

Pretreated jute fiber was treated with different fiber to liquor ratio viz. 1:10, 1:15, 1:20, 1:30, 1:40, and the solution was made with sodium hydroxide 10 g/L, sodium silicate 3.0g/L, TF-107B 2.0g/L, TF-125A 2.0g/L, and treated at 100 for 120 min,℃

Effect of Fiber to liquor ratio

63.1%

Effect of TF-125A Concentration

Effect of TF-107B Concentration

L9(34) Orthogonal Experiment

The optimum condition for gum decomposition was A3B2C1. And the optimum fineness index 2.02 tex was obtained with A3B2C1.

Effect of Degumming on the Constituent Contents of Jute Fiber

Conclusion The degumming process is necessary for improving the textile properties of jute fiber. The pre-chlorite treated jute fiber was degummed by varying sodium hydroxide concentration, treatment time, temperature, sodium silicate concentration, degumming agent TF-125A concentration, penetrating agent TF-107B concentration and fiber to liquor ratio. It was found that sodium hydroxide concentration, sodium silicate concentration and treatment time were the three most important parameters for degumming process, and the degumming process was an effective method to remove hemicellulose, lignin, pectin and some other non-cellulose materials

According to the results of the L9(34) orthogonal experiment, the gum decomposition ratio 61.9 % and fineness index 2.02 Tex were obtained with the optimum treating conditions such as sodium hydroxide of 12 g/L, sodium silicate of 3.0 g/L, TF-107B of 2.0 g/L, TF-125A of 2.0 g/L, treatment time of 105 min, temperature of 100 and fiber to ℃liquor ratio of 1:20.

Reference• [1]• Yu Hongqin; Dang Min; Yu Chongwen; A preliminary Study on Chemical Degumming of Jute and Kenaf Fibers; Plant Fiber and Products

2003, 25, 190-192• [2]• P Ghosh; Effect of selective chemical treatments of jute fiber on textile-related properties and processible; Indian Journal of F• ibers & textile Research 2004, 29, 85-89• [3]• Zhao Min; Dyeing and finishing of Jute fiber; Textile Science Research 1993, 3, 32-37• [4]• J. Jeyakodi Moses; A Study of jute fibers treated at ambient conditions; AATCC review 2001, 3, 34 – 37• [5]• S.N. Chattopadhyay; N.C. Pan; A. Day; Resuse of reactive dyes for dyeing of jute fabric; Bioresource Technology 2006, 97, 77-83• [6]• Y. Cai; S. K. David; M. T. Pailthorpe; Dyeing of Jute and Jute/Cotton Blend Fabrics with 2:1 Pre-metallised Dyes; Dyes and

Pigments2000, 45, 161 - 168• [7]• Hassan K. Sreenath; Arun B. Shah; Vina W. Yang; Enzymatic Polishing of Jute/Cotton Blended Fabrics; Journal of Fermentation and

Bioengineering 1996,81 , 18 – 20• [8]• G. Basu; S. N. Chattopadhyay; Ambient Temperature Bleaching of Jute fiber–Its Effect on Yarn Properties and Dyeing Behaviour; Indian

Journal of Fiber & Textile Research 1996, 21, 217 - 222• [9]• N.C. Pan;S.N. Chattopadhyay;A. Day; Jute Yarn Bleaching at Ambient Temperature with Different Pretreatments; Textile Asia 2001, 3, 40

- 43

• [10]• D.P. Chattopadhyay; Introduction, Chemistry and Preparatory Processes of Jute; Colourage, May 1998, 5, 23 – 35• [11]• N.C.Pan; A. Day; Kumar K. Mahalanabis; Chemical Composition of Jute and its Estimation ; Man-made Textiles In India 1999, 9, 467 –

473• [12]• Liu Jian; Cheng Hongzhang; Li Zuo; On the development of research of hemp fiber degumming; Plant Fiber and Products 2002, 24, 39-42• [13]• Zheng Laijiu; Yu Chongwen; Study on chemical modification of kenaf fiber and mixed blending with cotton; Journal of Dalian Institute of

Light Industry 2002, 21, 145-148• [14]• Bi Lei; Jiang Fengqin; Ji Yingchao; Guangxi Textile Science & Technology 2006, 35, 19-21• [15]• Wang H M; Wang X; Bast fiber degumming; Textil Asia 2004, 2, 28-30• [16]• Liu Zhaotie; yang Yani; Zhang Lili; Study on the performances of ramie fiber modified with ethylenediamine; Carbohydrate Polymers 2007,• [17]• Ryszard Kozlowski; Jolanta Batog; Wanda Konczewicz; Enzymes in bast fibrous plant processing; Biotechnology Letters 2006• [18]• Zheng Lianshuang; Du Yumin; Zhang Jiayao; Biobleaching effect of xylanase preparation from an alkalophilic bacillus sp. On ramie fibers;

Biotechnology letters 2000, 22, 1363-136• [19]• Yang Yingxian; The status quo and strategy of hemp bast degumming; Shandong Textile Science & Technology 2005, 1, 51-54

Questions

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