HPL Hot-Pressing Paper

Product Brief
High-strength plant fiber: modified treatment with specialized pulping; high-temperature-resistant fiber: proprietary process for superior thermal resistance; papermaking: produced on a hybrid forming paper machine; slitting & packaging: online removal of static electricity and dust, surface finishing, in-line quality inspection, moisture-proof and shock-resistant packaging.

Update Time:08-20-2026

Visit Volume:21

Product Inquiry +86 18802120426

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Detailed introductionProduct Inquiry

I. Manufacturing Process

➢ High-Strength Plant Fiber: Modified treatment with specialized pulping process.

➢ High-Temperature-Resistant Fiber: Proprietary process achieving superior thermal resistance performance.

➢ Papermaking: Produced on a hybrid forming paper machine.

➢ Slitting & Packaging: Online removal of static electricity and dust, surface finishing, in-line quality inspection, moisture-proof and shock-resistant packaging.

II. HPL Dedicated Thermal Press Paper vs. Traditional Kraft Paper

➢ Our company specializes in the development and manufacturing of buffer materials for the lamination process in the High ➢ Pressure Laminate (HPL) industry. Compared with traditional kraft paper laminating materials, our product features the following.

➢ Utilizes premium plant fibers, modified specialty fibers, and a unique forming process.

➢ Provides stable and sustained buffering pressure with excellent resilience. Allow 12 hours of rest before reuse for significantly improved rebound elasticity.

➢ Heating rate is comparable to kraft paper, with uniform temperature transfer.

➢ Operating temperature 160°C, pressure 75 kg, 40 min per cycle; reusable for >100 cycles (depending on specific customer lamination conditions).

➢ No linting or powder shedding during the lamination process.

➢ No adhesion to steel plates and no inter-sheet bonding during lamination. Please ensure proper moisture-proof treatment before use; otherwise, anti-blocking performance will be significantly reduced.

➢ Significantly reduces per-cycle overall lamination cost, improves production efficiency, and reduces labor intensity for on-site personnel.

➢ Available grammage: 160 g/m², 210 g/m², 240 g/m², 350 g/m²; customizable upon request.

III. Technical Specifications of Thermal Press Paper

ITEM	UNIT	VALUE
Nominal Grammage	g/m²	160	210	240
MD Grammage Deviation	g/m²	±5	±7	±8
CD Grammage Deviation	g/m²	±5	±7	±5
Thickness	mm	0.28	0.36	0.42
Thickness Tolerance	mm	±0.03	±0.03	±0.03
Density (Apparent)		0.56-0.58	0.56-0.58	0.56-0.58
Tensile Strength(KN/M)	MD	6	7	8
Tensile Strength(KN/M)	CD	4	5	6
Dirt (0.2–0.7 mm)	pcs/m²	≤10	≤10	≤10
Dirt (0.8–1.0 mm)	pcs/m²	≤1	≤1	≤1
Air Permeability	ml/min	400-600	300-500	200-400
Moisture at Delivery (Max.)	%	≤8	≤8	≤8
Finished Size Tolerance	mm	±5	±5	±5

IV. Heating Rate Comparison (First Lamination Cycle)

Material	Grammage (g/m²)	Set Heating Rate (°C/min)	Actual Heating Rate (°C/min)
Kraft Paper	2580	1.73	2.58
Thermal Press Paper	2400	1.80	2.45
Test Result	For the first lamination cycle of the thermal press paper, with 7% less grammage, the heating rate is approximately 5% slower

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