Emdirme ve Kimyasal Köpük Sistemi İle Buruşmazlık İşleminde Farklı pH Uygulamaları

Tekstil kumaşları özel kimyasallarla istenen bitim işlemini elde etmek için çeşitli işlemlere maruz kalmaktadır. Su/yağ iticilik ve buruşmazlık işlemleri en çok uygulanan bitim işlemleridir ve bu işlemleri gören ürünler ‘’kolay bakımlı’’ olarak adlandırılır. Buruşmazlık özelliğini artırmaya yönelik sıklıkla kullanılan yöntem makromolekül zincirleri çapraz bağlayıcı ile bağlanmaktadır. Çapraz bağlayıcılar selülozdaki hidroksil gruplar gibi polimer içindeki bazı aktif gruplarla reaksiyon veren birden fazla fonksiyonel grup içeren, genellikle küçük moleküllerdir. Dimetilol dihidroksietilenüre (DMDHEU) gibi N-metilol bileşikleri uzun zamandır buruşmazlık bitim işlemlerinde kullanılmaktadır. DMDHEU aplikasyonun dezavantajları çok bilinen formaldehit problemi ve mekanik özelliklerdeki düşüştür, dolayısıyla formaldehit içermeyen maddeler elde etmeye veya reçetede DMDHEU miktarını azaltmaya yönelik büyük çabalar gösterilmektedir. Ayrıca asidik ortamın pamuklu kumaşlara zarar verdiği bilinmektedir.

Anahtar Kelimeler:

Köpük aplikasyonu, DMDHEU, buruşmazlık

Crease Recovery Treatment Via Pad and Chemical Foam System with Different pH Values

Textile fabrics are subjected to various treatments for required finishing effects by specific chemicals. Water / oil repellency and crease recovery are among the most applied finishing treatments which are also used for products defined under “easy-care”. Regarding to improve crease recovery, most popular application has been to introduce cross-links between individual macromolecule chains. Cross-linking agents are usually small molecules containing several functional groups capable of reacting with some active groups in the polymer, such as hydroxyl groups in cellulose. N-methylol reagents such as dimethylol dihydroxylethyleneurea (DMDHEU) have long been used as durable press finishes producing crease-resistant fabrics. The drawbacks of DMDHEU application are the well-known formaldehyde problems and worsening some mechanical properties; thus there have been efforts to achieve non-formaldehyde alternative agents or reduce the amount of DMDHEU within treating recipes. Acidic media destroys cotton fabric samples as known.

Keywords:

Chemical foam system, DMDHEU, crease recovery,

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Can, Y., Akaydin, M., Turhan, Y. and Ay, E. (2009). Effect of wrinkle resistance finish on cotton fabric properties. Indian Journal of Fiber& Textile Research, 34, 183-186
Hauser, P.J., Smith. C.B. and Hashem, M.M. (2004). Ionic Cross linking of Cotton. Autex Research Journal, 4, 95-100
Mortazavi, S.M. and Boukany, P.E. (2004). Application of mixtures of Resin Finishing to Achieve Some Physical Prop- erties on Interlining Cotton Fabrics: I-Effect of Stiffening and Cross linking Agents, Iranian Polymer Journal, 13, 213-218.
Sahin, U.K., Gursoy, N.C., Hauser, P. and Smith, B. (2009). Optimization of Ionic Cross linking Process: An Alternative to Conventional Durable Press Finishing. Textile Research Journal, 79, 744-752
Bellini, P., Bonetti, F., Franzetti, E., Rosace, G. and Vago, S. (2001). Finishing Reference Books of Textile Technologies, Acimit Fundation.
Hashem, M., Hauser, P. and Smith, B. (2003). Wrinkle re- covery for cellulosic fabric by means of ionic cross linking. Textile Research Journal, 73, 762-766
Schramm, C., Rinderer, B., Binder, W.H., Tessadri, R. and Duelli, H. (2005). Treatment of 1, 3-dimethylol-4, 5- dihydroxyimidazolidine-2-one finished cellulosic material with tetraethoxysilane or glycidyloxypropyl-trimethoxysilane solutions. Journal of Materials Science, 40, 1883-1891
Ramachandran, T., Gobi, N., Rajendran, V. and Lakshmikan- tha, C.B. (2009). Optimization of process parameters for crease resistant finishing of cotton fabric using citric acid. Indian Journal of Fibre& Textile Research, 34, 359-367
Elbadawi, A.W. and Pearson, J.S. (2003). Foam Technology In Textile Finishing. Textile Progress, 33, 1-31
http://en.wikipedia.org/wiki/Foam, November2012
www.gastonsystems.com/system/system.html, 2012
CFS Foam Application Technology (2004) Industrial Fabric Bulletin, p.45
Mihailovic T.V., Nikolic M.D., Simovic Lj.M. (1995) Resistance to creasing of clothing wool fabrics. International Journal of Clothing Science and Technology, 7, 4 ,9-16.