34. When using Oleophobol C as an easy-to-remove finishing agent for cotton fabrics, is it possible not to add resin? What is the finishing effect?
Answer: Traditional stain-removing finishing agents are mainly acrylic copolymers. This type of stain-removing finishing agent can produce a thin film on the surface of the fabric to achieve the purpose of stain removal. However, this type of finishing agent is generally not washable. Therefore, penetrants and resin finishing agents must be added to improve wash resistance. For example, the easy-to-remove finishing agent Perapret DK (polypropylic acid polymer) produced by BASF must be used together with resin to improve the oil-repellent and easy-to-remove levels.
Oleophobol C is a hydrophilic fluorine-containing oil-repellent and water-repellent finishing agent produced by the Swiss Ciba Company. Its structure is an acrylic block copolymer containing fluorinated alkyl branches and an oil-repellent fluorinated alkane chain. There are also hydrophilic groups. Fabrics after finishing can produce oil-repellent and easy-to-contaminate effects as the environment changes. In the atmospheric environment, the fluorine-containing segments are densely arranged on the surface of the fabric, forming a low surface tension, which can make the fabric repellent to oil stains. In water, the hydrophilic segments swell and buckle the polymer molecular chains. The hydrophilic segments are oriented and arranged on the surface of the fabric to make the fabric hydrophilic, resulting in easy decontamination and prevention of wet re-contamination. Therefore, the finishing agent does not need to add resin when used, the process is relatively simple, the operation is convenient, the fabric has good decontamination and easy decontamination effects, strong durability, soft hand feeling, and good air permeability.
The finishing process for pure cotton twill (which has been singed, scoured, silk-finished, and colored): two dips and two rollings at room temperature (liquid padding rate 90%) → drying at 110°C → 170°C, 60s Baking → finished product. Process prescription: Oleophobol C 40g/L, 60% HAc 2g/L, pH value 4~5. Application effect: oil repellency level 6, level 6 after 5 cleanings; easy decontamination level 5, level 4-5 after cleaning 5 times, dry cleaning oil repellency level 6, easy decontamination level 5.
AAASDFWFWFWE
Disclaimer:
Disclaimer: Some of the texts, pictures, audios, and videos of some articles published on this site are from the Internet and do not represent the views of this site. The copyrights belong to the original authors. If you find that the information reproduced on this website infringes upon your rights, please contact us and we will change or delete it as soon as possible.
AA
