Commercialized Denim Fabric Production with Post-Industrial and Post-Consumer Wastes

The purpose of this study was to produce 100% recycled denim without a tradeoff in quality according to zero waste concepts.

Initially, the waste points from raw materials to final product in denim fabric production process were determined.

Then, denim fabrics were produced from post-industrial (recycled cotton fibers obtained from denim wastes) and post-consumer wastes (produced from recycled PET bottles).

Classic cotton fibers and alternative regenerated cellulose fibers (Tencel®) were used as carrier fiber in addition to mentioned fibers for eliminating recycled fibers disadvantages.

The effect of fiber types on yarn or fabric characteristics were investigated in accordance with planning design and construction.

Furthermore, the relationships between fibers and yarns/fabric results were statistically evaluated using correlation analysis.

The results of this investigation show that the amount of fibers have a significant effect on yarn unevenness, thick places, neps, hairiness, air permeability and abrasion resistance of the samples.

*** Click here to download this article ***

Read More

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.

*** Click here to download this article ***

Read More

Effect of Microfilament Yarns on The Performance Properties of Denim Fabrics

When efforts for innovation in product design are combined with developments in filament yarn technology, these yarns open different alternatives on behalf of evaluate the textile industry.

From this point of view, usage of filament and multifilament yarn structure in denim sector has been a research subject.

In this study, denim fabrics were designed and produced by using multifilament polyester yarns with seven different filament numbers.

The tensile strength (warp/weft), tear strength (warp/weft), stretch properties, air permeability, stiffness, water vapor absorption and hydrostatic pressure test of fabrics were performed.

Fabric stiffness increase and air permeability decrease as long as yarns have more microstructure through higher filament number.

Moreover, it is foreseen that fabric problems may be experienced in terms of elasticity growth when yarns have higher filament number.

*** Click here to download this article ***

Read More

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.

*** Click here to download this article ***

Read More