Impregnation Base Paper Printing Machine

-- Steady & Reliable Manufacturer --

Introduction

An impregnation base paper printing machine is a gravure press engineered around the specific properties and downstream requirements of alpha-cellulose base papers manufactured for resin impregnation. These papers — sometimes called décor raw papers or impregnation raw papers — are produced to tight specifications: controlled porosity for even resin uptake, defined basis weight for consistent resin loading, and specific moisture content ranges that affect both printability and impregnation performance.

The printing step sits between paper manufacture and resin impregnation in the production chain, and what happens on the printing press affects both. Ink penetration depth determines how much of the paper's pore volume remains available for resin. Residual moisture after drying affects resin viscosity at the impregnation bath entry. Surface ink film formation — acceptable on packaging papers — is actually a defect on impregnation base papers because it reduces resin absorption and causes bond failures in the laminate press.

Zhejiang Meige designs our impregnation base paper printing machines with these downstream interactions as primary design requirements, not afterthoughts. The drying system maintains residual moisture within the impregnation-optimal range of 4–7%, the ink formulation guidance we provide specifies open-structure binders that penetrate rather than coat, and the tension system is designed to avoid any elongation of the inherently sensitive base paper that would affect repeat registration.

Specification

Printing Process	Rotogravure
Web Width	1,280 mm / 1,600 mm / 2,100 mm
Color Stations	4 / 6 / 8
Print Speed	60 – 160 m/min
Register Accuracy	± 0.1 mm (ELS servo)
Substrate	Alpha-cellulose impregnation raw paper; Grammage 60–120 g/m²; porosity 200–1,200 ml/min Gurley
Residual Moisture Control	Target 4–7% by weight; NIR inline moisture sensor with dryer feedback
Ink System	Water-based gravure with open-structure binders; no surface-film-forming resins
Drying System	Multi-zone impingement; gentle temperature ramp to prevent surface sealing
Web Tension	Low-tension design: 20–100 N; closed-loop load-cell
Unwind / Rewind	Ø 1,200 mm; shafted cantilever; auto-tension
Ink Porosity Preservation	Dryer air velocity and temperature profiled to avoid surface skinning
Control System	Siemens PLC + HMI; moisture trend display; recipe storage
Certification	CE, ISO 9001:2015

Application

Melamine overlay paper for furniture board — printing base paper that feeds directly into melamine resin impregnation for particleboard and MDF surface overlay production.
HPL face sheet printing — printing alpha-cellulose raw paper for high-pressure laminate face sheets impregnated with phenolic or melamine resin.
Flooring LPL décor paper — printing impregnation raw paper for low-pressure laminate flooring overlay in direct-press or short-cycle pressing processes.
Ready-to-press (RTP) paper supply — producing printed rolls supplied to furniture manufacturers who operate their own impregnation equipment, enabling them to use proprietary patterns without in-house printing capability.
Balancing and backing paper printing — printing solid colour or pattern on the back and balancing papers in a laminate stack where these papers also require a decorative finish.
Specialty impregnation papers — printing base papers for technical laminates used in electrical insulation, industrial worksurfaces, and transport interior panels.

Advantages

Porosity-preserving drying profile — our dryer air velocity and temperature ramp are specifically profiled to evaporate ink carrier from the paper interior outward, preventing the surface-skin formation that traps residual moisture and blocks resin penetration in the impregnation bath.
Inline moisture measurement and feedback — NIR moisture sensor positioned after the last drying zone measures web moisture in real time; the dryer control system trims temperature to maintain 4–7% residual moisture automatically, adapting to changes in ambient humidity, paper grammage, and print coverage without operator adjustment.
Ink-impregnation compatibility consultation — we maintain updated compatibility data for gravure ink binder systems and resin types; our technical team reviews customer ink and resin combinations and advises on any potential interaction issues before they manifest as production defects.
Low-tension web handling — impregnation raw papers have lower internal bond strength than coated or surface-sized papers; our low-tension design prevents paper elongation that would cause width-direction pattern distortion visible after impregnation.
Inline to impregnation bath option — the press output section can be configured for direct inline feed to the customer's impregnation bath, eliminating the intermediate reel and all associated handling damage and moisture exchange risks.

Payment & Shipping

Payment Terms: 30% T/T deposit; 70% T/T before B/L. L/C at sight for orders ≥ USD 150,000.
Lead Time: 90–130 days standard configurations; inline print+impregnation packages 150–180 days.
Packaging: NIR moisture sensor in padded instrument case; all press components VCI-protected in ISPM-15 export wooden crates.
Shipping: FOB Ningbo / Shanghai. CIF, DAP available. Multi-shipment coordination for print+impregnation combined orders.
Commissioning: FAT at factory. 2 engineers on-site 14–21 days; moisture calibration with customer's specific base paper grades, ink and impregnation trial if inline integration is included.
Warranty: 12 months from commissioning or 18 months from shipment.

Q: Why does the drying temperature need to be lower for impregnation base papers than for coated papers?
A: Impregnation base papers use uncoated, highly porous cellulose fibres that dry rapidly at the surface when exposed to high-temperature air. If the surface dries faster than the interior, a skin forms that traps residual moisture below it and also partially seals the pore structure needed for resin penetration. The correct drying approach uses a moderate initial temperature (80–100 °C) to allow moisture migration from the fibre interior, followed by a higher finishing temperature (120–140 °C) to drive off the final surface moisture. This two-stage profile is programmed into our dryer zone controller for each base paper grade.

Q: How does ink penetration depth affect resin uptake in the impregnation bath?
A: Gravure ink that penetrates deeply into the fibre matrix occupies pore volume that would otherwise be filled by resin in the impregnation bath. If ink penetration is excessive, the paper becomes under-impregnated in the printed zones, causing bond failures and surface blisters in the laminate press. The correct approach is to use ink formulations with controlled penetration depth — enough to anchor the ink to the fibre, not enough to fill the pore volume. Cell depth and ink viscosity are the primary controls for penetration depth.

Q: What happens if residual moisture after printing is above 7%?
A: Paper above 7% residual moisture entering a melamine impregnation bath releases steam when it contacts the hot resin, causing foam formation in the bath and uneven resin distribution across the paper width. In extreme cases, the moisture flash causes micro-blisters in the impregnated paper visible on the finished laminate surface. The 4–7% target is set to avoid both under-drying (moisture problem) and over-drying (brittleness and web breaks at the impregnation bath entry rollers).

Q: Can standard furniture paper inks be used on impregnation base papers?
A: Standard furniture overlay inks often use film-forming acrylic or nitrocellulose binders that create a continuous surface layer over the paper. This is desirable for furniture overlay papers where the ink layer provides some surface abrasion resistance, but it is a significant defect on impregnation papers because it blocks resin absorption. Inks for impregnation papers must use open, penetrating binder systems — typically modified polyurethane or specific gravure resins without film-forming agents. Always confirm ink binder compatibility with impregnation requirements before first production trial.

since 1999

Zhejiang Meige Machinery Co., Ltd.

Zhejiang Meige Machinery Co., Ltd., founded in 1999 and located in Lin'an District. Hangzhou City, Zhejiang Province, is a national high-tech enterprise specializing in the research and development of intelligent and automated series gravure printing machines and the production and sales of prepress and post-press supporting equipment. After more than 20 years of development and technology accumulation, a variety of series of products have been formed. As China Impregnation Base Paper Printing Machine Manufacturers and Impregnation Base Paper Printing Machine Factory, the main products are drum decorative paper intaglio printing machine series, PVC, PP decorative film intaglio printing machine series, PVC film multi-layer non adhesive composite embossing production line, textile transfer printing paper (film) intaglio printing machine series, etc, lt is widely used in Engineered wood decorative materials, ubiquitous household industry, and textile transfer printing industry. Megger Machinery has a market share of about 60% in domestic Engineered wood decorative paper printing presses; The market share of PVC and Pp decorative film printing composite production lines is about 50%, The textile transfer printing paper (film) equipment is leading domestically, and the products have been exported to international markets such as Europe. America, the Middle East, and Southeast Asia.
The company currently has a large number of professional and technical research teams, including doctors, experts, professors, senior engineers, and school enter-prise cooperation. The company leads the development of the enterprise through technological innovation, continuously improving and leading the launch of high-performance high-speed automation, intelligence, and digital control printing machine products, as well as research on high-quality development projects for traditional industrial digitization. At the same time, the company has a complete product quality system and ERP information network material control management system, as well as a complete after-sales service system.
The company has passed the "Quality, Environment, and Occupational Health Management System Certification". Obtained more honorary titles such as the world's home furnishing award "Lingju Award", "National High Tech Enterprise", "Provincial High tech Enterprise Research and Development Center", "Provincial Science and Technology Enterprise", "Zhejiang Provincial Industrial Design Center", "Hangzhou Patent Demonstration Enterprise", "Zhejiang Provincial Specialized, Precision and New Center Enterprise", "Top 100 Chinese Home Furnishing Brands with Com-prehensive Strength", "Zhejiang Manufacturing Quality Product Logo", and so on, At the same time, it has also won three "high-tech new products in Zhejiang Province"two "the set of major technical equipment manufacturing industry in China" and more than 100 List of Chinese inventions patents, Chinese utility model patents, and Chinese design.ln addition, it has also won many provincial and municipal science and technology innovation awards and China's forestry industry Engineeredwood industry science and technology innovation awards. The company is a member of the National Printing Machinery Standardization Technical Committee and is responsible for formulating three national standards for energy efficiency evaluation of drum decorative paper, transfer printing paper gravure printing machines. printing machinery ink drying and curing devices, eight national industry standards. and two local standards for Zhejiang manufacturing as the main drafting unit.

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