Preface Innovation in Processing Used Palm Cooking Oil into Offset Printing Ink The Cellulose Extraction of TKKS Combined Bacterial Cellulose Strengthened with CMC Additives as Raw Materials for Making Environmentally Friendly Paper Investigation of Viscosity and Optical Density Characteristics in Sustainable Palm Oil-Based Offset Printing Ink Starch-Calcium Carbonate Surface Coating to Enhance the Water Resistance of Empty Fruit Bunch Paper Development of Eco-Cleaner Based on Eco-Enzymes Strengthened by Catalyst with Organic Solvents to Reduce Metals and Impurities on Offset Printing Machine Rollers and Blankets Making "Glow-in-the-Dark" Screen Printing on Cotton Material (Comparative Review of Phosphorus and Rubber ) Comparative Analysis of Printability, Optical, and Mechanical Properties of Coated Papers: A Case Study of Magno Satin and Art Carton Paper.