High Adhesion Thermoplastic Solid Acrylic Resin SA-317

  PVC shrink film, due to its excellent clarity, good printability, and robust shrinkage properties, is widely used in modern packaging for beverages, cosmetics, pharmaceuticals, and various consumer goods. To achieve high-quality printing on these films, the choice of ink components, particularly the resin system, is crucial. Among the various resins, High adhesion acrylic resin material has become the preferred choice for PVC shrink film inks due to its excellent balance of adhesion, flexibility, and printability.

  Thermoplastic acrylic resin is the backbone resin in PVC shrink film ink systems. It plays a key role in binding pigments and additives while ensuring strong adhesion to the PVC substrate. Unlike some other resins, acrylic resin is compatible with the shrinking process, meaning it can withstand the heat applied during the shrinking process without cracking or losing adhesion. This makes thermoplastic acrylic resin an ideal choice for high-speed packaging lines that require both durability and visual appeal.

Using Thermoplastic acrylic resin in PVC shrink film inks offers multiple benefits:

• Enhanced print quality and brand image.
• Supports high-speed printing and converting.
• Ensures durability during shipping and storage.
• Provides design flexibility, enabling complex graphics and full labeling.

Product Description

    SA-317 is a thermoplastic solid acrylic resin primarily composed of methyl methacrylate (MMA) and n-butyl methacrylate (n-BMA) polymers. It exhibits excellent color development, strong adhesion, and weather resistance. Its high MV imparts tear resistance to coatings, ensuring crack-free performance at shrinkage rates ≥60%. Its Tg of 61°C precisely matches the PVC shrinkage temperature window (80-120°C), preventing high-temperature tack and low-temperature brittle cracking. Its viscosity of 240-320 mPa·s in 37.5% toluene ensures screen printability, while its acid value of ≤7 mgKOH/g enhances anchoring strength to PVC substrates. Application of solid acrylic resin SA-317 in screen printing inks for PVC shrink film significantly improves printability and finished product performance. Solvent Based Solid Acrylic Resin SA-317 is also frequently used in varnishes, demonstrating excellent overall performance.

‌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.