Paper fibre reject from the production, SCA Obbola Post-consumer pre-shredded cotton denim, SOEX Post-consumer white polyester garments, SOEX
Post-consumer colored polyester garments, SOEX
Polyester cotton blend garments, SOEX
SEK/tonne in April 2011 when they bought when they bought corrugated fibreboard from UK (grade 1.05 which is old corrugated containers). The top quality of recovered paper grades according to SCA Obbola is new shavings of corrugated fibreboard (4.01, clippings) and the price peaked in May 2011 with a price of 1968 SEK/tonne, delivered from The Netherlands. The lowest quality is for local deliverables of 1.05 corrugated fibreboard reached the lowest value at 696 SEK/tonne in September 2014. The fibres is a zero-value waste and it costs 34 ₏/tonne pays SCA Obbola to get rid of it. The post-consumer denim ‌to be reported Pure polyester is a criterion for the polyester recycling processes. The specific selected mix has no exact price and market. It was difficult to obtain high amount of this fraction due to that polyester is often mixed with other fibres. Pure polyester is a criterion for the polyester recycling processes. The specific selected mix has no exact price and market. It was difficult to obtain high amount of this fraction due to that polyester is often mixed with other fibres. The specific selected mix has no exact price and market. The difficulty to obtain 50:50 polyester:cotton of this fraction is overcomed by mixing 50 % of high polyester:low cotton content with 50 % of low polyester: high cotton content. However most of the clothes containing polyester and cotton have a polyester content of 20-30%. The final polyester/cotton ratio was estimated to 35%/65%.
1.13 CHEMICAL COMPOSITION QUALITY OF THE RAW MATERIAL
AND
MACROMOLECULAR
The results from the analyses are presented separately below.
1.13.1 LIMITING VISCOSITY NUMBER The limiting viscosity numbers of the cotton samples, measured by SP and VTT, are shown in Table 2. Table 2. Limiting viscosity number of cotton and paper board samples Waste material
Limiting viscosity number, ml/g SP
VTT