Development stream to obtain a fluffless core is the positioning of SAP in small spot on 2 different webs. Afterwards these spots are covered with a glue and bonded together. The result is a sandwich of 2 webs with SAP in the middle. Number of spots and their positions can be varied along the core obtaining a very low SAP grammage in the back and high density in the central part where capacity is more needed.
Technology used to produce this core is simple because it consists of engraved rolls to distribute SAP at specific rate but be aware because already many patents were already filed to cover almost completely this subject.
Some market tests are already on going from big manufacturer and we can expect some news in the next months.