जटिल और फोटोग्राफिक डिजाइनों के लिए निम्नलिखित में से कौन सी छपाई (printing) विधि सबसे उपयुक्त है?

Given below are two statements: Assertion A: The dyeing of highly crystalline synthetic fibers like polyester often requires the use of carriers or High Temperature High Pressure (HTHP) techniques. Reason R: Carriers or swelling agents are necessary to swell the dense polymer structure of crystalline fibers, allowing dye molecules to penetrate effectively. In the light of the above statements, choose the most appropriate answer:

Given below are two statements: Assertion A: Electrolytes such as sodium chloride or sodium sulphate are added during the dyeing process to neutralize the naturally repelling negative charges of textile fibers and dye molecules. Reason R: When heat is applied in an aqueous dye liquor, the water dissociates and hydrophilic fibers swell, allowing large dye molecules to penetrate the fiber's polymer system. In the light of the above statements, choose the most appropriate answer: