Solid Acrylic Resin SA-318 Suitable For Ink

  PVC shrink films are widely used in modern packaging, particularly for beverages, cosmetics, and household products, due to their excellent overall decorative effect, outstanding clarity, and strong shelf appeal. To achieve durable and vibrant prints on these films, the choice of ink resin is crucial. In screen printing applications, thermoplastic acrylic resin are the most effective resins for PVC shrink film inks due to their unique adhesion, flexibility, and gloss.

Key Properties of thermoplastic acrylic resins for Screen Printing Inks for PVC Shrink Film:

Excellent Adhesion to PVC Substrates

  Thermoplastic acrylic resins bond strongly to PVC film, ensuring the printed design remains intact even after shrinkage and handling.

High Gloss and Clarity

  One of the key advantages of thermoplastic acrylic resins is their ability to produce vibrant, glossy prints that make product labels stand out.

Flexibility During the Shrinking Process

  PVC film can shrink by up to 60-70%, depending on the design. Thermoplastic acrylic resins maintain their flexibility, preventing cracking or delamination of the printed layer during this process.

Heat Resistance

  Because shrink film is exposed to hot air ovens during application, Thermoplastic acrylic resins are thermally stable and maintain ink performance at high temperatures.

Screen Printing Compatibility

  Thermoplastic acrylic resins offer controllable viscosity, smooth ink transfer, and good leveling, which are crucial for achieving uniform coverage during screen printing.

Product Description

  SA-318 is a high quality solid thermoplastic acrylic resin, primarily composed of methyl methacrylate (MMA) and n-butyl methacrylate (n-BMA) polymers, exhibits excellent color development, strong adhesion, and superior weather resistance. Solid acrylic resin SA-318's balanced molecular weight and spherical structure provide excellent film-forming properties and smooth ink transfer, while its relatively high Tg ensures hardness, gloss, and scratch resistance after printing. The n-BMA component also imparts flexibility, enabling the ink layer to withstand film shrinkage without cracking. The low acid value enhances the resin's stability and chemical resistance, reducing sensitivity to water and solvents. Combined with a viscosity suitable for screen printing, these properties provide excellent adhesion, high gloss, durability, and flexibility, ensuring crisp, vibrant, and long-lasting graphics on shrink labels. Applying solid thermoplastic acrylic resin SA-318 to screen-printed inks on PVC shrink film significantly enhances the overall performance of the finished product.

‌Key Features‌

• Good color development
• Strong adhesion
• Good weather resistance

Recommended Applications

• Silk screen ink
• Varnish

Physical Property

Solubility

Compatibility

  It has good Compatibility with alkyd resin, perchlorethylene resin, nitrocellulose, cellulose acetate butyrate, etc. 

Packaging Details

25kgs/Bag 

Storage

  This product should be stored in a dry, ventilated place to avoid moisture.