Preparation of multiple-reactive-site and flexible crosslinking agent with transaconitic acid and acrylic acid and its application for three-dimensional crosslinking of cellulose

2021 ◽  
pp. 004051752110678
Author(s):  
Ting Liang ◽  
Kelu Yan ◽  
Tao Zhao ◽  
Bolin Ji
Keyword(s):  
Acrylic Acid ◽  
Crosslinking Agent ◽  
Three Dimensional ◽  
Cotton Fabrics ◽  
Carboxyl Groups ◽  
Reactive Site ◽  
Polycarboxylic Acid ◽  
Recovery Angle ◽  
Strength Retention ◽  
Tearing Strength

A novel multiple-reactive-site crosslinking agent, P(TAA‒AA), was developed from transaconitic acid and acrylic acid in this study. Cotton fabrics with durable wrinkle-resistant properties were obtained by crosslinking with P(TAA‒AA), which benefited from the multifunctional carboxyl groups of crosslinking agents and the three-dimensional crosslinking inside cotton fibers. The wrinkle-resistant properties of P(TAA‒AA)-modified fabrics were evaluated and compared with those of other polycarboxylic acid-treated fabrics, and the P(TAA‒AA)-modified fabrics showed a wrinkle recovery angle of 262° as high as the 1,2,3,4-butanetetracarboxylic acid-modified fabrics while maintaining nearly two-fold higher tearing strength retention (62.9%), and they showed a much higher value of whiteness index than the citric acid-modified fabrics. This demonstrated that the obtained P(TAA‒AA) is an ideal polycarboxylic acid already known to date simultaneously to realize the high wrinkle recovery angle and high tearing strength retention for treated cotton fabrics. The Raman depth mapping images and the scanning electron microscope images of P(TAA‒AA)-modified samples indicated that P(TAA‒AA) molecules can diffuse into the amorphous regions of the cellulose fibers and form crosslinking bridges between cellulose chains. The multiple reactive carboxyl groups in P(TAA‒AA) may form three or more ester bonds between the P(TAA‒AA) molecule and different cellulose chains, which were regarded as the main contribution to the high crosslinking effectiveness of the P(TAA‒AA)-modified fabrics.

scholarly journals Established an eco-friendly cotton fabric treating process with enhancing anti-wrinkle performance

2021 ◽  
Vol 16 ◽  
pp. 155892502110034
Author(s):  
Xiongfang Luo ◽  
Pei Cheng ◽  
Wencong Wang ◽  
Jiajia Fu ◽  
Weidong Gao
Keyword(s):  
Tensile Strength ◽  
Citric Acid ◽  
Cotton Fabric ◽  
Crosslinking Agent ◽  
Cost Effective ◽  
Waterborne Polyurethane ◽  
Cotton Fabrics ◽  
Wrinkle Resistance ◽  
Before And After ◽  
Strength Retention

This study establishes an eco-friendly anti-wrinkle treating process for cotton fabric. Sodium hydroxide-liquid ammonia pretreatment followed by 6% (w/w) PU100 adding citric acid pad-cure-dry finishing. In this process, citric acid (CA) was used as the fundamental crosslinking agent during finishing because it is a non-formaldehyde based, cost-effective and well wrinkle resistance agent. Environmental-friendly waterborne polyurethane (WPU) was used as an additive to add to the CA finishing solution. Six commercial WPUs were systematically investigated. Fabric properties like wrinkle resistance, tensile strength retention, whiteness, durable press, softness, and wettability were well investigated. Fourier transform infrared spectra and X-ray diffraction spectra were also measured and discussed before and after adding waterborne polyurethane. Tentative mechanism of the interaction among the WPU, CA, and modified cotton fabrics is provided. The effect of cotton fabric pretreatment on fabric performance was also investigated. After the eco-process’s treatment, the fabric wrinkle resistant angle was upgraded to 271 ± 7°, tensile strength retention was maintained at 66.77% ± 3.50% and CIE whiteness was elevated to 52.13 ± 3.21, which are much better than the traditional CA anti-wrinkle finishing based on mercerized cotton fabrics. This study provides useful information for textile researchers and engineers.

scholarly journals Chelation and Metal-Ion Complex Formation of Chitosan Treated Cotton

2019 ◽  
Vol 8 (3) ◽  
pp. 93-100 ◽  
Author(s):  
Sudirman Habibie
Keyword(s):  
Cotton Fabric ◽  
Metal Ion ◽  
Chelating Agents ◽  
Transition Metal Ions ◽  
Cotton Fabrics ◽  
Carboxyl Groups ◽  
Polycarboxylic Acid ◽  
Salt Solutions ◽  
Polycarboxylic Acids ◽  
Zinc Salts

Chitin dan chitosan adalah bahan “chelate” yang sangat kuat untuk ion transisi logam terutama tembaga, nikel dan merkuri, dan sifat-sifat ini yang akan intensif di bahas. Pada studi ini kain kapas (cotton) dikerjakan dengan larutan chitosan-asam polikarboksilat untuk memperoleh kain kapas-chitosan yang mengandung gugus group karboksilat (-COOH) dan gugus amina (-NH2) fungsional. Penggunaan asam polykarboksilat (asam sitrat dan maleik) pada pelarutan chitosan menghasilkan group karboksil 0,5 meqs/g pada kain yang dicelup dengan larutan chitosan asam karboksilat. Kemudian kain kapas yang telah mengandung gugus karboksilat dan gugus amina ini dicelupkan pada larutan garam logam (garam tembaga dan seng). Terbukti bahwa larutan garam tembaga (copper) memberikan warna biru pada kain, hal ini mengindikasikan telah terjadi reaksi kompleks atau “Chelate”. Implikasi dari hasil ini maka diperkirakan kandungan group karboksil dan amina ini akan mempengaruhi pada pencelupan kain, namun hal ini tidak diuji.Kata kunci : Chitosan, Kain Kapas, Chelate, Asam asetat, Asam citrate, Asam maleik, Tembaga sulphate, Tembaga acetate.AbstractChitin and chitosan are powerfull chelating agents for transition metal ions, particularly copper, nickel and mercury, and these properties have been extensively reviewed. In this study, cotton fabric has been treated with chitosan- polycarboxylic acid solution to form chitosan treated cotton fabric containing carboxyl (-COOH) and amine (-NH2) functional groups. The use of polycarboxylic acids (citric and maleic acids) to dissolve chitosan has given carboxyl groups 0.5 meqs/g into chitosan treated cotton fabrics. Instead, the complexing of the treated cotton samples with copper and zinc salts was examined. The copper salt solutions gave blue fabrics confirming easily that complexing or chelation had occurred. There are implications for dyeing cotton making use of these groups but this was not investigated.Keyword : Chitosan, Cotton fabric, Chelation, Acetic acid, Citric acid, Maleic acid, Copper (II) sulphate, Copper (II) acetate.

Finishing Process of Modified Nano TiO2 Photocatalyst on Cotton

2012 ◽  
Vol 441 ◽  
pp. 320-325
Author(s):  
Li Ming Wang ◽  
Ying Ding ◽  
Yong Shen ◽  
Zai Sheng Cai
Keyword(s):  
Cotton Fabric ◽  
Breaking Strength ◽  
Crosslinking Agent ◽  
Cotton Fabrics ◽  
Polymerization Degree ◽  
Cure Process ◽  
Curing Conditions ◽  
Washing Fastness ◽  
Finishing Process ◽  
Tearing Strength

A series of modified nanoTiO2 photocatalysts, nanoPC, was applied to cotton fabrics through a pad-dry-cure process. The effect of nanoPC dosage, the ratio of nanoPC to crosslinking agent, and curing conditions on the degradation of formaldehyde were discussed. The optimal finishing process of cotton fabric with nanoPC was determined as follows: 1%~1.5% photocatalyst, curing at 130°C for 5 minutes. Cotton fabric treated with the above process demonstrated over 90% degradation of formaldehyde, good washing fastness and soft handle, as well as little loss in breaking strength, tearing strength and polymerization degree.

Comparison of Textile Mechanical Properties of Cotton in Crosslinking with Dimethylolethyleneurea and Formaldehyde

1976 ◽  
Vol 46 (11) ◽  
pp. 813-817 ◽  
Author(s):  
U. Meyer ◽  
K. Müller ◽  
H. Zollinger
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Crosslinking Agent ◽  
Strength Loss ◽  
Cotton Fabrics ◽  
Degree Of Polymerization ◽  
Cure Process ◽  
Recovery Angle ◽  
Varied Concentration ◽  
Very High

Cotton fabrics were crosslinked with dimethylolethyleneurea (DMEU) and with formaldehyde by the pad-dry-cure process. The following parameters were varied: concentration of catalyst (MgCl2) and crosslinking agent, reaction time, and temperature. The crosslinked fabrics were characterized by dry and wet crease-recovery angles, tensile strength, and degree of polymerization. The results show that with DMEU a significantly better dry crease-recovery angle/tensile strength relation is obtainable. This difference is due entirely to a greater degradation of cellulose by hydrolysis in treatments with formaldehyde. Furthermore, in the case of DMEU the effect/strength loss relation can be improved by using very high resin concentrations in the padding liquor.

Properties of Cotton Fabrics Crosslinked with Different Molecular Chain Lengths of Aldehyde Agents

1992 ◽  
Vol 62 (8) ◽  
pp. 469-474 ◽  
Author(s):  
Jyh-Pyng Shyu ◽  
Cheng-Chi Chen
Keyword(s):  
Tensile Strength ◽  
Crosslinking Agent ◽  
Molecular Chain ◽  
Surface Migration ◽  
Recovery Angle ◽  
Chain Lengths ◽  
Strength Retention ◽  
Crosslinking Agents ◽  
Lower Tensile Strength ◽  
Better Than

Cotton fabric has been crosslinked with differing molecular chain lengths of an aldehyde crosslinking agent (formaldehyde and glutaraldehyde). The formaldehyde treated fabric shows lower tensile strength retention than the glutaraldehyde treated fabric but higher elongation retention for a given agent concentration. At the same dry or wet crease recovery angle, tensile strength of the formaldehyde treated fabric is lower than that of the glutaraldehyde treated fabric, but elongation is higher. Wet crease recovery of the formaldehyde treated fabric is better than that of the glutaraldehyde treated fabric. The degree of surface migration is similar for both fabrics. Agent distribution in the treated fibers is different for the differing molecular chain lengths of the crosslinking agents.

Effect of Wrinkle Free Finishing of Cotton Twill Fabric

2015 ◽  
Vol 10 (3) ◽  
pp. 155892501501000
Author(s):  
Rui-Hua Yang ◽  
Chi-Wai Kan
Keyword(s):  
Testing Machine ◽  
Cotton Fabrics ◽  
Test Method ◽  
Curing Temperature ◽  
Tensile Testing Machine ◽  
Orthogonal Experiments ◽  
Before And After ◽  
Recovery Angle ◽  
Tearing Strength ◽  
Resin Treatment

Wrinkle free finishing is a widely used functional finishing process to produce wrinkle-resistant cotton fabrics at the expense of tearing strength of fabrics. In this research, full factors and orthogonal experiments were carried out to invesitgate the mechnism between the wrinkle recovery and tearing strength of cotton fabrics. Wrinkle recovery angle (WRA) was tested by AATCC Test Method 66–2003. Fabric tearing strength, interwoven resistance, and yarn strength were tested before and after resin treatment by a tensile testing machine. By full factors experiment, it was found that the specimen could achieve its best wrinkle-free performance at 110°C curing temperature, 2.5 minutes curing time, 80% pick-up percentage and 60g/l resin concentration considering fabric tearing strength. It is found out that after resin treatment in optimum condition, it could effectively improve the WRA and at the same time with the minimum lose of tearing strength of fabric.

scholarly journals Improving the Dyeability and Anti-Wrinkle Properties of Cotton Fabric via Oxidized Raffinose

2021 ◽  
Vol 11 (10) ◽  
pp. 4641
Author(s):  
Jiangfei Lou ◽  
Jinfang Zhang ◽  
Dan Wang ◽  
Xuerong Fan
Keyword(s):  
Catalyst Concentration ◽  
Structural Characteristics ◽  
Cotton Fabrics ◽  
Difficult Problem ◽  
Curing Temperature ◽  
Dyeing Performance ◽  
Finishing Process ◽  
Combined Mechanism ◽  
Recovery Angle ◽  
Butanetetracarboxylic Acid

In the anti-wrinkle finishing of cotton fabrics, the decreased dyeability of the finished fabrics has always been a difficult problem. A new anti-wrinkle finishing mode was developed to solve this problem by changing the finishing sequence of fabric dyeing and anti-wrinkle. In this research, the partial oxidization of raffinose with sodium periodate generated multiple aldehydes, which acted as multifunctional cross-linkers and endowed cotton fabrics with anti-wrinkle and hydrophilic properties. The structural characteristics of oxyRa were analyzed by FTIR and 13C-NMR. Through response surface methodology (RSM), the finishing model of oxyRa was established from the influencing factors of catalyst concentration, pH, curing temperature and time, and the optimized finishing process: the catalyst concentration was 20.12 g/L, pH was 4.32, curing temperature was 150 °C and curing time was 120 s. Under this condition, the predicted wrinkle recovery angle (WRA) of the finished fabric was up to 249.76°, Tensile strength (TS) was 75.62%, Whiteness index (WI) was 70.69. Importantly, comparing the anti-wrinkle and dyeing performance of the fabric with anti-wrinkle and then dyeing and anti-wrinkle after dyeing, the oxyRa-treated fabrics showed better dyeing properties compared with previously reported dimethyldihydroxyethylene urea (DMDHEU), glutaraldehyde (GA), and 1,2,3,4-butanetetracarboxylic acid (BTCA). Analysis of the combined mechanism of different finishing agents and cellulose, demonstrated the reason why oxyRa can be used to change the order of dyeing and anti-wrinkle finishing.

Durable Antibacterial Finish on Cotton Fabrics with PAMAM/Ag+

2011 ◽  
Vol 332-334 ◽  
pp. 77-80 ◽  
Author(s):  
Chuan Jie Zhang ◽  
Hong Yang ◽  
Yun Liu ◽  
Ping Zhu
Keyword(s):  
Cotton Fabric ◽  
Antibacterial Agent ◽  
Antibacterial Property ◽  
Breaking Strength ◽  
Antibacterial Properties ◽  
Pamam Dendrimers ◽  
Cotton Fabrics ◽  
E Coli ◽  
Strength Retention ◽  
Better Than

Cotton fabric with excellent antibacterial properties was obtained by treated with polyamide-amine (PAMAM) dendrimers as a carrier and silver nitrate as an antibacterial agent. The antibacterial cotton fabrics were prepared by the methods of one-bath process and two-bath process. Antibacterial activity of cotton fabrics treated by two different methods was good, but the antibacterial durability of cotton fabric treated with two-bath process was better than that treated with one-bath process. After 50 washing cycles, cotton fabric treated with two-bath process still had good antibacterial property and its inhibitory rate to Gram-positive S. aureus and Gram-negative E. coli was over 99 %. It was found that the breaking strength retention of finished cotton fabrics was 85.83 % and the decrease of cotton fabrics’ whiteness index was about 15 %.

Wool: Its Effect On Flame Retardant Properties of Blend Fabrics

1983 ◽  
Vol 1 (2) ◽  
pp. 145-154 ◽  
Author(s):  
John V. Beninate ◽  
Brenda J. Trask ◽  
Timothy A. Calamari ◽  
George L. Drake
Keyword(s):  
Thermal Degradation ◽  
Flame Retardant ◽  
Flame Retardants ◽  
Oxygen Index ◽  
Cotton Fabrics ◽  
Cotton Wool ◽  
Burning Rates ◽  
Low Levels ◽  
Flame Retardant Properties ◽  
Strength Retention

Durable phosphorus-based flame retardants were applied to twill fabrics con taining cotton and wool to study the effect of wool on the flame retardancy and physical properties of the blend fabrics. The presence of wool in untreated blend fabrics caused burning rates to decrease and oxygen index values to increase as wool content increased in the blends. These effects were also observed in cotton/ wool blends treated with low levels of the Thps-urea-TMM flame retardant, but were less pronounced in fabrics treated at high levels. Thermogravimetric analyses were conducted to study the thermal degradation of the treated and untreated fabrics. The presence of wool in treated blend fabrics did not sig nificantly change strength retention, area shrinkage and wrinkle recovery values in comparison to similarly treated 100% cotton fabrics.

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