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Production and consumption of textile garments contribute significantly to environment problems. The purpose of this paper is to perform the evaluation of textile waste generated at Lithuanian clothing enterprises based on statistical data analysis and business cases studies.

For the evaluation of real situation of waste generation in companies, an original methodology was developed and used during investigation. In order to get an overall view, statistical data of waste generation and management in Lithuania were also analysed. Waste accounting covered data such as wastes from unprocessed textile fibres and wastes from processed textile fibres and textiles (not otherwise specified).

The investigation showed that the amount of cutting waste reaches 20-25 per cent of the total quantity of materials used for production. It was found that the waste is not sorted in Lithuanian clothing enterprises and is disposed in landfills in most cases, notwithstanding the positive tendencies of recycling of waste that were observed during past year. However, a practical recycling strategy and broader perception of developing products with greater added value from waste are missing in Lithuania.

In this research, a simple methodology was developed for determining the quantity of the textile waste generated by enterprises, the introduction of which would allow us to expect better results in waste accounting and management. The results of investigation are useful to gain in-depth understanding of waste generation in various countries.

The purpose of this paper is to determine the influence made by complex finishing of denim fabrics, i.e. laser treatment and industrial washing, on the change in tension properties of fabric.

Test specimens were treated by a laser JG-10050. Lasers main technological parameters: maximum laser beam power is 65 W, laser types are hermetic and detached CO₂, laser tube wavelength is 10.62 µm. The test specimens processed by different laser energy density have been exposed to industrial washing and their tensile characteristics have been investigated.

The results of the research have demonstrated that complex finishing reduces the breaking force; however, material extensibility remains almost unchanged. Mechanical behaviour and composition characteristics of fabric are determined both by laser motion direction in respect of warp or weft and laser energy density.

The carried-out analysis of scientific literature has shown that the effect of laser on the fabric surface is relevant both in scientific and practical terms: the scientific literature contains studies on absorptive properties of laser treated materials; however, the behaviour of materials after complex finishing has not been widely investigated thus far.

The paper aims to establish and introduce seam pucker assessment indicators and their dependence upon the fabric characteristics and parameters of a sewing machine.

Seams pucker defect is specific to garment from lightweight fabrics, therefore the investigation was performed with this kind of fabrics. The structure and friction properties of fabrics were determined. The influence of rotational frequency of the main shaft (varied from 200 till 2,300 min⁻¹) and pressing force (from 25 till 85 N) on seam pucker was analysed. The seam pucker was evaluated by characteristic of sharpness calculated as ratio of pucker height and length.

Analysis of the obtained results allows stating that pucker sharpness increases with growing rotational frequency of the main shaft and decreases, increasing pressing force. On the basis of correlation analysis, the relationship between proposed new indicator of seam pucker evaluation and parameters of sewing machine was sought. The obtained result demonstrates that in most cases the relative pucker coefficient is dependent upon rotational frequency of the main shaft: increasing rotational frequency also leads to higher pucker coefficient. The linear relationship between the pucker coefficient and pressing force was not observed.

This investigation has practical implications in the clothing and other nearly related industries. In the paper, results involved with evaluation of seam pucker are presented.

The research showed that in order to define seam pucker more comprehensive, it is necessary to evaluate not only ratio of pucker height and length, but also the quantity of puckers as well as their propagation. Considering to this, the new criterion for seam pucker evaluation was proposed.

The paper aims to evaluate the influence of mechanical properties of sewing threads on the seam pucker.

The mechanical properties of sewing thread were obtained performing tensile testing research. The seam pucker of lightweight fabric was evaluated after sewing, then after 24 h, after 48 h as well as after washing and drying. To determine dimension changes of fabric, the relaxation shrinkage was calculated. The results of thread properties and seam pucker were compared.

In respect of seam pucker the best results were established sewing with polyester threads, the reversible strain of which were the least. After washing and drying, the highest pucker was typical of the specimens sewn with cotton sewing threads. It was noticed that increasing the amount of layers in sewing the influence of threads on seam pucker decreases. Washing and drying made considerably greater influence on the occurrence of pucker then time.

This study has practical implications in the clothing and other nearly related industries. In the paper recommendations involved with application of sewing thread and evaluation of seam pucker are presented.

In most cases the changes of sewn thread mechanical properties after sewing is analysed. This study is aimed to determine the influence of thread properties on seam pucker. Recommendations in the area of sewing thread and garment quality are based on the research.

Examines the tenth published year of the ITCRR. Runs the whole gamut of textile innovation, research and testing, some of which investigates hitherto untouched aspects. Subjects discussed include cotton fabric processing, asbestos substitutes, textile adjuncts to cardiovascular surgery, wet textile processes, hand evaluation, nanotechnology, thermoplastic composites, robotic ironing, protective clothing (agricultural and industrial), ecological aspects of fibre properties – to name but a few! There would appear to be no limit to the future potential for textile applications.