Preparation and application of polyaldehyde trehalose as a new hydrophilic anti-crease finishing agent for cotton fabric

2020 ◽  
pp. 004051752094296
Author(s):  
Jiangfei Lou ◽  
Jiugang Yuan ◽  
Qiang Wang ◽  
Ping Wang ◽  
Jin Xu ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Cotton Fabric ◽  
Crosslinking Agent ◽  
Proton Nuclear Magnetic Resonance ◽  
Optimum Process ◽  
Process Conditions ◽  
Hydroxyl Groups ◽  
Reactive Groups ◽  
Finishing Agent ◽  
Aldehyde Groups

Polyaldehyde trehalose (OTr) was prepared and applied to cotton fabric as an anti-crease finishing agent under Lewis acid conditions. OTr contains reactive groups (aldehyde groups) and hydrophilic groups (hydroxyl groups). After the aldehyde groups crosslink with the hydroxyl groups of the fibers, the hydroxyl groups of the OTr improve the hydrophilicity of the finished fabric. The target product was characterized by Fourier transform infrared spectroscopy and proton nuclear magnetic resonance. The optimum process conditions for anti-crease finishing were studied. The optimal anti-crease finishing process for OTr was 10.0%, a MgCl2 concentration of 2.0%, a pH of 3, and curing for 3 min at 150℃. The efficiency of the OTr-treated cotton fabrics was examined, and the anti-crease property, whiteness, tensile strength, hydrophilicity, and staining property of the OTr and conventional anti-crease finishing reagents were compared. The anti-crease property, whiteness, and tensile strength of the OTr-treated fabric improved significantly, but were lower than those of the butane tetracarboxylic acid and glutaraldehyde. Fabric that was treated with the new prepared agent presented a satisfactory hydrophilicity, which indicates that OTr can be used as an effective hydrophilic crosslinking agent.

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.

Study on the Enzyme Desizing Process for Cotton Fabric Using Ultrasonication

2011 ◽  
Vol 331 ◽  
pp. 261-264 ◽  
Author(s):  
Qi Ming Zhao ◽  
Shan Yan Zhang
Keyword(s):  
Cotton Fabric ◽  
Ph Value ◽  
Orthogonal Experiment ◽  
Research Result ◽  
Strength Loss ◽  
Cotton Fabrics ◽  
Optimum Process ◽  
Process Conditions ◽  
Fabric Strength ◽  
Enzyme Dosage

The auxiliary devices of ultrasonic treatment was designed and manufactured. The cotton fabric was desized using 2000L desizing enzyme with the conventional enzyme desizing process and ultrasonic enzyme desizing process respectively. Through the orthogonal experiment, the optimum process conditions of conventional enzyme desizing process and ultrasonic enzyme desizing process were determined. For the conventional enzyme desizing process, the optimized desizing conditions of cotton fabrics were: desizing enzyme dosage was 1.5g/l, temperature was 80°C, PH value was 6, and time was 60mins. The optimum process conditions of ultrasonic enzyme desizing process were: desizing enzyme dosage was 1.5g/l, temperature was 50°C, PH value was 6 and time was 45minutes. The research result indicates that, under the same desizing condition, ultrasonication can improve the desizing percentage and whiteness of cotton fabric, but the fabric strength loss increases slightly. And for the same required desizing percentage, the ultrasonic enzyme desizing process saved time and reduced the temperature of experiments compared with traditional enzyme desizing process

Preparation of Antibacterial Cotton Fabric Containing Patchouli Oil Microcapsules by Chemical Crosslinking Method

2011 ◽  
Vol 221 ◽  
pp. 308-315 ◽  
Author(s):  
Zi Ming Yang ◽  
Gen Quan Liang ◽  
Ly Li ◽  
Wai Man Au ◽  
Hui Yi Zhong ◽  
...  
Keyword(s):  
Cotton Fabric ◽  
Crosslinking Agent ◽  
Antibacterial Properties ◽  
Infrared Spectrometry ◽  
Hydroxyl Groups ◽  
Chemical Crosslinking ◽  
Complex Coacervation ◽  
Persistent Effect ◽  
Butanetetracarboxylic Acid

In this paper, a new kind of antibacterial cotton fabric containing patchouli oil microcapsules was investigated. The patchouli oil microcapsules were prepared using a complex coacervation procedure and grafted onto cotton fabric by chemical crosslinking method, along with 1,2,3,4-butanetetracarboxylic acid (BTCA) was utilized as the crosslinking agent. The surface and morphology of fabrics were characterized by using scanning electron microscope (SEM). Fourier transform infrared spectrometry (FTIR) was used to study the formation of ester bonds between BTCA and hydroxyl groups of cotton and patchouli oil microcapsules. The releasing characteristics and antimicrobial durability of the antibacterial fabrics were also investigated by releasing test and laundering test. The results showed that the patchouli oil microcapsules were grafted onto cotton fabric by the role of crosslinking agent BTCA and the treated fabric represented persistent effect, slow releasing performance and washable antibacterial properties. After 30 days, the patchouli oil in the microcapsules was still remained on the fabric and the releasing amount was near 50%. About 72% antibacterial rate of the fabric for staphylococcus aureus and candida albicans could be obtained after washed 30 times, furthermore, no formaldehyde releasing can be found. It is suggested that chemical crosslinking method would provide a potential application in functional finishing by microcapsules for cotton fabric.

Synthesis and application of an alkaline crosslinking agent containing acrylamide as the durable press finishing agent on cotton fabric

2018 ◽  
Vol 89 (11) ◽  
pp. 2084-2097 ◽  
Author(s):  
Fuqiang Li ◽  
Hongchen Wang ◽  
Jinxin He
Keyword(s):  
Cotton Fabric ◽  
High Performance ◽  
Water Solubility ◽  
Low Cost ◽  
Crosslinking Agent ◽  
Proton Nuclear Magnetic Resonance ◽  
Durable Press ◽  
Washing Durability ◽  
Durable Press Finishing ◽  
Crosslinking Agents

In this study, acrylamide-containing crosslinking agents 2,4-diacrylamidebenzenesulfonic acid (AC-DABS1) and 2,5-diacrylamidebenzenesulfonic acid (AC-DABS2) were synthesized and applied to cotton fabric as durable press finishing agents under alkaline conditions. The target products were characterized by high-performance liquid chromatography (HPLC) and proton nuclear magnetic resonance. The stability of the acrylamide group in alkaline solution was investigated by model compound para-acrylamidebenzenesulfonic acid. The efficiency of AC-DABS1 and AC-DABS2 as durable press finishing agents was examined and compared by testing the wrinkle recovery angle (WRA), tearing strength retention (TSR) and washing durability under different conditions using the steaming process. The performance of fabric treated with 1,3,5-triacroylaminohexahydro-s-triazine (FAP) was also investigated and compared with those treated with acrylamide-containing crosslinking agents. The results showed that the anti-crease effects of FAP were better than those of the new synthesized agents. However, the new synthesized agents have the advantage of water solubility and low cost. The fabric treated with new synthesized agents presented satisfactory WRA and TSR, indicating that AC-DABS1 and AC-DABS2 can be utilized as effective alkaline crosslinking agents. In addition, the different performance of the FAP-treated fabric and fabric treated with the new synthesized agents was illustrated by the HPLC method.

Wrinkle-Resistant Property of Cotton Fabric Treated by Chitosan and Epoxy-Silicon Micro-Emulsion

2011 ◽  
Vol 331 ◽  
pp. 382-385
Author(s):  
Hao Wang ◽  
Chen Huang ◽  
Na Liu
Keyword(s):  
Cotton Fabric ◽  
Volume Concentration ◽  
Breaking Strength ◽  
Optimum Process ◽  
Process Conditions ◽  
Wrinkle Resistance ◽  
Finishing Process ◽  
Micro Emulsion ◽  
Main Factors ◽  
Recovery Angle

Cotton fabric was treated by chitosan and epoxy-silicone finishing agents to improve its wrinkle-resistant property. The study showed that mixed finish by two agents can provide higher wrinkle-resistance than single finish when applied to the cotton fabrics due to their synergistic effect. In the wrinkle-resistant finishing process, four main factors (chitosan mass concentration, organosilicon volume concentration, baking temperature and baking time) influencing finish effect were discussed and then process conditions were determined. After optimum process treatment, the wrinkle-recovery angle of mixed finished cotton fabric increased evidently while its whiteness and breaking strength dropped a little. In addition, the addition of organosilicon can improve fabric softness. After washed for 30 times, delay wrinkle-recovery angle of mixed finished fabric was 54° higher than that of native fabric, and the treated cotton exhibited good washing resistance.

Ecofriendly Approach to Improve Pectinolytic Reaction and Process Optimization of Bioscouring of Organic Cotton Textiles

2013 ◽  
Vol 8 (2) ◽  
pp. 155892501300800 ◽  
Author(s):  
C. Vigneswaran ◽  
M. Ananthasubramanian ◽  
N. Anbumani ◽  
P. Kandhavadivu
Keyword(s):  
Cotton Fabric ◽  
Enzyme Concentration ◽  
Optimum Process ◽  
Process Conditions ◽  
Test Results ◽  
Yellowness Index ◽  
Organic Cotton ◽  
Pectinolytic Activity ◽  
Wax Content ◽  
Artificial Neural Network Ann

The present study focused on improvement of the enzymatic bioscouring performance by using specific mixed enzymes such as alkaline pectinase, protease, lipase and cellulase enzymes. An attempt was made to study the pectinolytic activity of degrading rate of pectin on organic cotton fabric and removal of wax at various enzymatic process conditions such as enzyme concentration, temperature, and time. These process variables were selected based on the artificial neural network (ANN) method. Output of the experiment resulted in fabric physical properties such as weight loss, water absorbency, wetting area, whiteness index, yellowness index, brightness index. The enzymatic scoured organic cotton fabric was tested for wax content and pectin degradation rate on the fabric and their results were optimized with minimum error. The test results were analyzed to predict the optimum process parameters to achieve the required bioscouring fabric properties and removal of pectin degrading rate, and their results were compared with actual trials.

scholarly journals Optimizing content of Pyrovatex CP New and Knittex FFRC in flameretardant treatment for cotton fabric

2021 ◽  
Vol 72 (03) ◽  
pp. 315-323
Author(s):  
NGUYEN THI HUONG ◽  
VU THI HONG KHANH ◽  
NGUYEN PHAM DUY LINH
Keyword(s):  
Tensile Strength ◽  
Flame Retardant ◽  
Cotton Fabric ◽  
Treatment Process ◽  
Crosslinking Agent ◽  
Design Expert ◽  
Flammability Characteristics ◽  
Design Type ◽  
The Relationship ◽  
Central Composite

In this study, the flame-retardant treatment for cotton fabric has been done by using the commercial organophosphoruscompounds labelled Pyrovatex CP New (PR). Knittex FFRC (K), a formaldehyde-free crosslinking agent, has been usedto enhance the link between Pyrovatex CP New and Cellulose molecules. The flame-retardant treatment process forcotton fabric has been done by the pad-dry-cure technique. The purpose of the study is to predict the optimal PyrovatexCP New and Knittex FFRC concentrations with the highest fire resistance efficiency, minimum loss for mechanicalproperties and minimum formaldehyde release for the treated fabric. To achieve this goal, the response surfacemethodology (RSM) was used to find the relationship between the controlled experimental factors and the observedresults. The central composite design type face centred (CCF) was applied as experimental design. According to thisexperimental design, 10 experiments were carried out. The chemical uptake rate, vertical flammability characteristics,LOI value, tensile strength and formaldehyde-free content of the untreated and treated samples were determined. Fourresponse models between the reagent concentrations and the add-on amount, LOI value, warp and weft tensile strengthof the treated fabric were obtained by the assistance of software Design-Expert V 10.0.8. The R-squared values of thesemodels were above 80% confirming their significances. The optimal conditions when combining three parameters (LOI,warp tensile strength and weft tensile strength) were selected as 450 g/l Pyrovatex CP New and 107,575 g/l KnittexFFRC with the assistance of Design-Expert software

scholarly journals Biodegradable Polyurethanes Based on Castor Oil and Poly (3-hydroxybutyrate)

Polymers ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1387
Author(s):  
Pathikrit Saha ◽  
Chanin Khomlaem ◽  
Hajer Aloui ◽  
Beom Soo Kim
Keyword(s):  
Tensile Strength ◽  
Castor Oil ◽  
Crosslinking Agent ◽  
Hexamethylene Diisocyanate ◽  
Short Chain ◽  
Proton Nuclear Magnetic Resonance ◽  
Resonance Spectroscopy ◽  
Mechanical And Thermal Properties ◽  
Degradation Rates ◽  
Long Chain

Biodegradable polyurethanes (PUs) were produced from castor oil (CO) and poly (3-hydroxybutyrate) diol (PHBD) using hexamethylene diisocyanate as a crosslinking agent. PHBDs of different molecular weights were synthesized through transesterification of bacterial PHB and ethylene glycol by changing the reaction time. The synthesized PHBDs were characterized in terms of Fourier transform infrared and proton nuclear magnetic resonance spectroscopy. A series of PUs at different NCO/OH and CO/PHBD ratios were prepared. The resulting CO/PHBD-based PUs were then characterized in terms of mechanical and thermal properties. Increasing PHBD content significantly increased the tensile strength of CO/PHBD-based PUs by 300% compared to neat CO-based PU. CO/PHBD-based PUs synthetized from short chain PHBD exhibited higher tensile strength compared to those produced from long chain PHBD. As revealed by scanning electron microscopy analysis, such improvement in stiffness of the resulting PUs is due to the good compatibility between CO and PHBD. Increasing PHBD content also increased the crystallinity of the resulting PUs. In addition, higher degradation rates were obtained for CO/PHBD-based PUs synthetized from long chain PHBD compared to neat CO PU and PUs produced from short chain PHBD.

scholarly journals Incorporation of Poly(Itaconic Acid) with Quaternized Thiazole Groups on Gelatin-Based Films for Antimicrobial-Active Food Packaging

Polymers ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 200
Author(s):  
Celeste Cottet ◽  
Andrés G. Salvay ◽  
Mercedes A. Peltzer ◽  
Marta Fernández-García
Keyword(s):  
Antimicrobial Activity ◽  
Itaconic Acid ◽  
Food Packaging ◽  
Crosslinking Agent ◽  
Radical Scavenging ◽  
Proton Nuclear Magnetic Resonance ◽  
Esterification Reaction ◽  
Alkylation Reaction ◽  
Vapor Permeability ◽  
Active Food Packaging

Poly(itaconic acid) (PIA) was synthesized via conventional radical polymerization. Then, functionalization of PIA was carried out by an esterification reaction with the heterocyclic groups of 1,3-thiazole and posterior quaternization by N-alkylation reaction with iodomethane. The modifications were confirmed by Fourier transform infrared (FTIR) and proton nuclear magnetic resonance (1H-NMR), as well as ζ-potential measurements. Their antimicrobial activity was tested against different Gram-negative and Gram-positive bacteria. After characterization, the resulting polymers were incorporated into gelatin with oxidized starch and glycerol as film adjuvants, and dopamine as crosslinking agent, to develop antimicrobial-active films. The addition of quaternized polymers not only improved the mechanical properties of gelatin formulations, but also decreased the solution absorption capacity during the swelling process. However, the incorporation of synthesized polymers increased the deformation at break values and the water vapor permeability of films. The antioxidant capacity of films was confirmed by radical scavenging ability and, additionally, those films exhibited antimicrobial activity. Therefore, these films can be considered as good candidates for active packaging, ensuring a constant concentration of the active compound on the surface of the food, increasing products’ shelf-life and reducing the environmental impact generated by plastics of petrochemical origin.

A poly(arylene ether sulfone) hybrid membrane using titanium dioxide nanoparticles as the filler

2016 ◽  
Vol 29 (1) ◽  
pp. 26-35 ◽  
Author(s):  
Yunwu Yu ◽  
Wenhao Pan ◽  
Xiaoman Guo ◽  
Lili Gao ◽  
Yaxin Gu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Titanium Dioxide ◽  
Gas Separation ◽  
Proton Nuclear Magnetic Resonance ◽  
Separation Performance ◽  
Hydroxyl Groups ◽  
Hybrid Membranes ◽  
Permeability Coefficients ◽  
Arylene Ether ◽  
The Matrix

Poly(arylene ether sulfone) (PES)–titanium dioxide (TiO2) hybrid membranes were prepared via solution blending method using TiO2 nanoparticles as inorganic filler. The chemical structure and thermal stability of the matrix polymer were characterized by proton nuclear magnetic resonance, Fourier transform infrared, differential scanning calorimetry, and thermogravimetric analysis. The crystal structure, morphology, mechanical properties, and gas separation performance of hybrid membranes were characterized in detail. As shown in scanning electron microscopic images, TiO2 nanoparticles dispersed homogeneously in the matrix. Although the mechanical properties of hybrid membranes decreased certainly compared to the pure PES membranes, they are strong enough for gas separation in this study. All gas permeability coefficients of PES-TiO2 hybrid membranes were higher than pure PES membranes, attributed to the nanogap caused by TiO2 nanoparticles, for instance, oxygen and nitrogen permeability coefficients of Hybrid-3 (consists of PES with 4-amino-phenyl pendant group and hexafluoroisopropyl (Am-PES)-20 and TiO2 nanoparticles, 5 wt%) increased from 2.57 and 0.33 to 5.88 and 0.63, respectively. In addition, the separation factor increased at the same time attributed to the stimulative transfer effect caused by the interaction of hydroxyl groups on the TiO2 nanoparticle and polar carbon dioxide molecules.

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