The effect of recycled fibers on the washing performance of denim fabrics

In this study, denim fabrics were produced with yarns obtained from cotton fibers (CO), recycled cotton fibers obtained from yarn wastes (r-CO), and fibers produced from recycled PET bottles (r-PET).

Enzyme and stone washing processes were applied systematically on these fabrics. Mass per unit area, breaking force, elongation at max force, tear strength, air permeability, and circular bending rigidity of fabrics were measured.

The findings showed that r-CO fiber has negative effect on tear and breaking force. Breaking force, elongation at max force, and tear strength values of the fabrics increased depending on the increase in r-PET content.

However, fabric handle was negatively affected associated with the r-PET ratio due to the increase in stiffness.

Mass per unit area, breaking force, air permeability, and circular bending rigidity values of fabrics decreased after the washing processes.

The effect of fibers on enzyme- or stone-washed fabrics showed a change according to finished fabrics.

It can be said that fabrics containing r-PET are more resistant than cotton and recycled cotton in various aggressive denim washing methods such as bleaching or different washing process conditions such as rising temperature, and time.

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A Study on Usage of Chenille Yarn in Denim Fabric Production

Producers benefit from various applications to increase the usage of denim for the winter seasons.

However, the current applications have negative effects on clothing comfort.

In this study, availability of chenille yarn, which is a type of fancy yarn for denim industry, has been examined by improving aforementioned clothing comfort.

We investigated the differences between breaking strength, breaking elongation, tear strength and abrasion resistance of chenille denim and standard denim which have the same values of mass per unit area.

Consequently, in contrast to earlier findings that chenille yarns have lower abrasion resistance, this research explores unanticipated findings.

Furthermore, acceptable values in point of tear strength, breaking strength and elongation were obtained of the chenille denim.

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Utilization of Waste Yarns in Hair Interlining Industry

There has been an innovation need for utilizing fine yarn wastes nowadays.

In this study, probability of using yarn wastes in hair interlining industry has been investigated.

Information about hair interlining was given and production problems were investigated.

It was underlined that by using wastes these problems can be solved environment-consciously.

Mass per unit area, breaking strength, elongation at break, fiber blending ratio, circular bending stiffness, and dimensional change of standard and environment-friendly interlinings were tested and comparatively investigated.

Consequentially, environment-friendly hair interlinings produced from different yarn wastes have lower shrinkage results.

It was found that breaking strength, elongation at break, and circular bending stiffness results of the two fabrics had no remarkable difference.

With this study, suitable utilizing area for waste yarns were found and singeing and sizing steps of the production were eliminated.

In every sense, this study brings innovations for hair interlining production and makes contributions to the environment.

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