PVC Leather Deodorizer

Product Introduction

During the production of PVC artificial and synthetic leather (especially plastisol coating and calendering processes), large amounts of liquid plasticizers, heat stabilizers, and blowing agents are added to ensure softness and processability. When passing through high-temperature ovens or calender rolls (170°C-210°C), plasticizers easily undergo thermal-oxidative degradation, releasing a strong "plastic grease odor" (mainly free aldehydes). Meanwhile, residues emit pungent amine and sulfur odors. This severely restricts PVC leather's application in high-end automotive interiors and eco-friendly home furnishings.

This product is a new generation "all-organic, fully-melting" reactive deodorizer developed for PVC leather with strict appearance requirements. During high-temperature PVC processing, it 100% melts into a transparent liquid phase, achieving molecular-level miscibility with the paste, firmly anchoring in the polymer network to maintain excellent anti-migration properties. Chemically, it features highly active nucleophilic and complexing groups that actively track and instantly capture free odor molecules, irreversibly converting them into massive, highly stable network macromolecules. Without changing the initial rheological viscosity or affecting the mechanical strength and final hand-feel, it completely eradicates comprehensive odors in PVC leather, ensuring a flawless surface and significantly upgrading the product's sensory and eco-friendly quality.

Appearance

White powder

Deodorizing Principle

• Nucleophilic Addition (Targets Grease Odor): Rich in specific highly active nucleophilic groups, it actively tracks free aldehyde molecules generated by plasticizer degradation at high temperatures. Through strong nucleophilic substitution, volatile odor molecules are instantly converted into bulky, high-temperature stable polymer derivatives, fundamentally blocking odor release.
• Charge Complexation (Targets Amine/Sulfur Odors): For electron-rich odor molecules like free amines and thiols, the core low-melting organic metal salts provide strong electrophilic empty orbitals. Precise charge complexation forcibly converts these molecules into extremely stable organic salt complexes, stripping their volatility.
• All-Organic Melting & Rheological Stability: The unique polymeric porous organic medium melts completely into a liquid phase at PVC plasticization temperatures. This ensures nano-scale dispersion of highly concentrated active substances in the massive plasticizer paste. Its excellent polar compatibility guarantees no change in plastisol viscosity, perfectly maintaining coating rheology and flawless film appearance.

Application Areas

• Automotive NVH & Interiors: Odor elimination for high-end auto dashboard skins, door panels, and seat PVC synthetic leather. Thoroughly locks polar odor molecules to prevent fogging (Zero Fogging), meeting the strictest automotive Indoor Air Quality (IAQ) and low VOC emission standards.
• Eco-friendly Furniture & Decorative Leather: Deodorizing premium indoor sofa leather, removing plastic smells from eco-wall decorative leather, and net-odor treatment for high-transmittance zero-solvent PVC coatings, ensuring long-lasting dryness and excellent touch.
• Daily Leather & Industrial Films: Removing grease odors from luggage and shoe upper leather; high-temperature deodorization for PVC calendered films, advertising films, and industrial tarpaulins. Prevents roll sticking and enhances surface gloss.

Usage Method

• Adding Method: Directly add during the PVC plastisol mixing (pulping) stage or the dry blending stage of PVC calendered materials.
• Mixing Requirements: As an all-organic, easy-to-disperse powder, mix it with the materials in a standard mixer at low/medium speed for 15-30 minutes for uniform macroscopic distribution. Of course, using a high-speed mixer will yield even more exceptional and rapid molecular-level dispersion. It will automatically melt and fully dissolve during subsequent heating.

Reference Dosage

• Recommended Dosage: 0.1% - 0.3% of the total material weight.
• Starting Test Dosage: For initial evaluation, a starting dosage of 0.2% is highly recommended. Fine-tune later based on the plasticizer ratio and final VOC standards.

Precautions

• As a reactive melting material, it requires normal PVC processing heat (typically above 150°C) to fully activate the chemical reaction and completely melt.
• Store in a ventilated, cool, and dry place. Avoid heavy pressure. Seal the bag tightly after opening to prevent moisture absorption.