This invention provides a
hydrocolloid dressing for ostomy bag
adhesive baseplates and its application. The
hydrocolloid dressing is composed of a pressure-sensitive
adhesive. The raw materials of the pressure-sensitive
adhesive include the following components by weight: 24 parts
polymer colloid, 42 parts polyisobutylene composition, 3 parts tackifying resin, 6 parts glycerin, 15 parts
sodium carboxymethyl cellulose, and 10 parts affinity block
copolymer. The polyisobutylene composition is composed of high molecular weight polyisobutylene and low molecular weight polyisobutylene. The affinity block
copolymer is composed of
polyethylene glycol and polyglycerol decanoate. Through the synergistic design of the formulation and segmented process, an optimal balance is achieved between initial tack, holding power, wet tack retention, absorbency management, and
skin compatibility, thereby meeting the comprehensive requirements of ostomy bag adhesive baseplates for long-term adhesion, leak resistance, and gentleness to the
skin around the
stoma. Segmented feeding and the limitation of temperature and rotation speed ensure the protection of heat-sensitive components, controllable phase distribution, and suppression of air bubbles.