Red 10:1 Adjustable Hardness Liquid Pad Printing Ink
Price:60
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Manufacturing pad printing pads uses addition-cure liquid pad printing silicone paste Contact Ms. Chen for consultation 13662816580 (same number for WeChat)
Liquid pad printing silicone paste (typically liquid silicone rubber, possessing good elasticity, release properties, and ink resistance) is the core material for manufacturing pad printing pads. Its molding process requires strict control of the ratio, curing conditions, and mold precision to ensure the pads have uniform hardness, a fine surface, and stable printing performance. The following is a detailed manufacturing method, covering the entire process from raw material preparation, mold treatment, paste mixing, curing and molding, to post-processing:
I. Core Raw Materials and Equipment Preparation
1. Core Raw Materials (Categorized by Function)
| Material Category | Specific Component / Function | Key Requirements |
|---|---|---|
| Base Rubber Material | Liquid silicone rubber (divided into Component A: base rubber; Component B: curing agent) | Choose "silicone rubber specialized for pad printing," avoid general-purpose silicone (prone to blurred printing, poor ink resistance); select hardness as needed (Shore A 15°-30°, soft pads suit irregular workpieces, hard pads suit fine patterns). |
| Additives (Optional) | 1. Color paste: adjusts pad color (e.g., black, transparent); 2. Defoamer: reduces bubbles in the paste (avoids pinholes in the pad); 3. Diluent: reduces paste viscosity (add small amounts only when filling is difficult, avoid affecting hardness). | Additives must be "specialized for silicone rubber," avoid chemical reactions with the silicone; color paste addition should not exceed 5% (excess reduces pad elasticity). |
| Release Agent | Neutral release agent (e.g., silicone oil, fluorine-based release agent) | Prohibit acidic/alkaline release agents (can corrode silicone, causing surface cracking); prioritize silicone oil for metal molds, use fluorine-based release agent for resin molds. |
2. Key Equipment and Tools
- Mold: Typically aluminum alloy mold (high precision, uniform heat conduction, suitable for mass production) or resin mold (suitable for small-batch customization), the mold cavity must match the target pad shape (e.g., round, square, conical, surface roughness Ra≤0.8μm, avoid uneven pad surface);
- Weighing tools: Electronic balance (precision 0.1g, ensures accurate A/B component ratio);
- Mixing tools: Stainless steel/plastic stirring rod (avoid glass rods, prone to scratches leading to impurity mixing), vacuum defoaming machine (optional, for removing paste bubbles);
- Curing equipment: Oven (temperature control precision ±2℃, for heat curing) or room temperature curing environment (must be dust-free, draft-free);
- Post-processing tools: Utility knife (trimming), sandpaper (800#-1200#, for smoothing surface burrs), cleaning agent (isopropyl alcohol, for cleaning surface oil stains from pads).
| Industry Category | Chemicals/Ink/Transfer Inks |
|---|---|
| Product Category | |
| Brand: | 鴻風豪 |
| Spec: | HF-523 |
| Stock: | 50000 |
| Manufacturer: | |
| Origin: | China / Guangdong / Dongshi |
