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Found 5 essays matching the above criteria.

1. 1. Risk assessment of non-intentionally added substances in polyester yarn made from recycled polyethylene terephthalate (PET)

   University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

   Author : Kristina Arnqvist; [2023]
   Keywords : r-PET; polyester yarn; NIAS; risk assessment;

   Abstract : Polyester is a synthetic material made from polyethylene terephthalate (PET), which is synthesised from fossil raw materials. Many clothing manufacturers are using polyester in their clothing, which, from an environmental perspective, creates a non-sustainable cycle. READ MORE

3. 2. Effect of grains on satiety in dogs : investigated using a behavioural approach

   University essay from SLU/Dept. of Animal Environment and Health

   Author : Malin Hellström; [2021]
   Keywords : dog; satiety; dietary fibres; feeding motivation; grain; whole grain; wheat; ; oats; rye; runway; attention bias;

   Abstract : High-quality foods have become abundant for our pet animals and with that, obesity has become a major threat to the health and welfare of our companion dogs. The use of dietary fibres in animal feeds to prolong satiety is well discussed in the literature for several species, but scarce when it comes to dogs. READ MORE

4. 3. Structural modifications of polyester fibres induced by thermal and chemical treatments to obtain high-performance fibres

   University essay from KTH/Fiber- och polymerteknologi

   Author : Kartikeya Sharma; [2021]
   Keywords : PET fibres; P3HB fibres; Radial gradient; Chemical modification; Thermal annealing; High-performance fibres; PET-fibrer; P3HB-fibrer; Radiell lutning; Kemisk modifiering; termisk glödgning; högpresterande fibrer;

   Abstract : Del A: Polyetylentereftalat fibrer I detta arbete presenteras olika metoder för att framställa monofilament av polyetylentereftalat (PET) (diameter: 30-50 µm) med en radiell gradient. Nyutvecklad Raman-spektroskopiteknik har använts för att kartlägga dessa inducerade radiella gradienter i t.ex. kristallinitet. READ MORE

5. 4. Chemical and physical changes in PET fibres due to exhaust dyeing : Issues in thermo-mechanical recycling of dyed PET textiles

   University essay from Högskolan i Borås/Akademin för textil, teknik och ekonomi

   Author : Frida Lindström; [2018]
   Keywords : Polyethylene terephthalate; polyester; exhaust dyeing; auxiliary chemicals; degradation; hydrolysis; thermo-mechanical recycling; fibre-to-fibre recycling; FTIR; DSC; tensile properties; demand absorbency test.;

   Abstract : Polyethylene terephthalate (PET) is the most used fibre in the textile industry. PET is also used in other products, e.g. soft-drink bottles and food packaging. READ MORE

6. 5. Development of a pre-knitting friction test method and study of friction and bending of yarns with high stiffness.

   University essay from Högskolan i Borås/Institutionen Textilhögskolan

   Author : Joel Peterson; Ellinor Vegborn; [2009]
   Keywords : knitting technology; carbon fibres; pet fibres; aramid fibres; flexural rigidity; friction;

   Abstract : Knitting is a class of techniques for production of textile fabrics by inter-looping yarns withthe use of hooked needles. The new loops are created when the yarns drawn through thepreviously formed loops. READ MORE