Linerboard made of virgin pulp is called kraftliner, whereas recycled linerboard is known as testliner. The corrugating medium may be recycled medium, called wellenstoff in Europe, or virgin, which is called semichemical medium for the type of pulp used in its production.
Testliner, like kraftliner, is used for the outer and intermediate plies of corrugated board. However, its strength is not quite as high as that of kraftliner, as it has a higher recycled fiber content.
Corrugated fiberboard or “combined board” has two main components: the liner and the medium. Both are made of a special kind of heavy paper called containerboard. Linerboard is the flat material, typically on the outer surfaces of the board but also on the inside for some structures, that adheres to the medium. Medium is the paper that is formed into arches or flutes on the single facer and glued between the linerboard facings.
Fluted paper is the middle liner of corrugated board, which can be supplied individually as a type of protective packaging. It provides protection by filling empty spaces in the outer case and providing a cushioning effect for the primary product.
Wood pulp for sack paper is made from softwood by the kraft process. The long fibers provides the paper its strength and wet strength chemicals are added to even further improve the strength. Both white and brown grades are made. Sack paper is then produced on a paper machine from the wood pulp.
Kraftliner White Top is made from several plies in a cylinder paper machine. The top ply consists of bleached (TCF) eucalyptus kraft pulp fibres; the back is made from a mixture of pine and eucalyptus kraft fibres.
Kraftliner White Top can be used safely for various food packaging types. For detailed declarations please contact us.
Testliner white top is made from several plies in a cylinder paper machine.
The top ply consists of bleached (TCF) eucalyptus kraft pulp fibres; the back is made from clean recycled fibres.
• White kraft pulp fibres used are produced as Totally Chlorine Free (TCF).
• Testliner White Top can be used safely for various food packaging types. For detailed declarations please contact us
The high viscosity Absorbent Kraft Paper is used for lamination. Absorbent Kraft is used for the manufacturing of Sunmica sheets. …
Absorbent Kraft paper is a paper with controlled absorbency, which means a high degree of porosity. It is made of clean low kappa hardwood Kraft with good uniformity.
Pulp produced by the kraft process is stronger than that made by other pulping processes; acidic sulfite processes degrade cellulose more, leading to weaker fibers, and mechanical pulping processes leave most of the lignin with the fibers, whereas kraft pulping removes most of the lignin present originally in the wood. Low lignin is important to the resulting strength of the paper, as the hydrophobic nature of lignin interferes with the formation of the hydrogen bonds between cellulose (and hemicellulose) in the fibers.[3]
This paper is made from the Kraft pulping process utilizing Kraft pulp. Bleached Kraft Paper under goes a treatment using bleach and other chemicals to whiten and purify the natural pulp. When Kraft paper is “Bleached” it becomes a stronger paper then the natural brown Kraft paper. This paper is used heavily in wrapping and packaging.
Natural kraft paper’s unique mechanical strength , flexibility and printability means that it can be used in a very wide range of manufacturing, packaging and wrapping applications.
Folding boxboard, is a paperboard grade made up of multiple layers of chemical and mechanical pulp.[1] This grade is made up of mechanical pulp in between two layers of chemical pulp.The top layer is of bleached chemical pulp with an optional pigment coating.[2] This is a low-density material with high stiffness and has a slightly yellow colour, mainly on the inside. The major end uses of folding boxboard are health and beauty products, frozen, chilled and other foods, confectionaries, pharmaceuticals, graphical uses[3] and cigarettes.[4]
Solid bleached board (SBB) or solid bleached sulphate (SBS) is a virgin fibre grade of paperboard. This grade is made purely from bleached chemical pulp and usually has a mineral or synthetic pigment coated top surface in one or more layers (C1S) and often also a coating on the reverse side (C2S).
Poly coated Kraft paper is made from made from virgin Kraft paper and coated with glossy coating on 1 side. Poly coated Kraft paper is available in roll and sheet forms. Freezer paper is made from 40 grade virgin bleached paper and coated with polyethylene on 1 side. Freezer paper is FDA approved.
the polycoated board are used for making cups for serving hot & cold beverages, the cup stock board when coated with LDPE gives it moisture & water resistance on poly side, sealing property and more strength.
includes the protection layers required to prevent grease, liquids or moisture from absorbing into the package. The versatility of the board is increased by its heat sealing capacity, cleanness, lightness and first-class printing surface. In the manufacturing process, special attention will be paid to the effective utilisation of wood raw material, and the minimisation of energy, bleaching chemicals and water consumption per each produced ton. A patent is pending for innovations associated with the manufacturing process.
Coated kraft back is made of several plies and is classified as a multipurpose product.
Top Plies: double coating top on two plies of Total Chlorine Free (TCF) bleached eucalyptus fibres.
Bottom Plies: several plies are made from a mixture of FSC® certified unbleached virgin softwood and hardwood fibres.
Coated kraft back is used in folding cartons mainly in consumer products for the food and beverage industry and personal care products that require high quality printing.
A high gloss, mirror-like surface, one side or two sides.Allowing the coating to harden while in contact with chromium polished surfaced coats cast coated paper
A duplex board is a sheet of double-ply paper, similar to the kind of thick paper used to make cards. Duplex board is often used in packaging and has a distinctly smooth, almost waxy feel.
A liquid packaging board might be up to five plies and is formed on a multi-ply paper machine with online coating. The most common is to use three plies with a basis weight of about 300 g/m2.[2] The base or middle ply is normally made of pulp from bleached or unbleached chemical pulp, CTMP or broke (waste paper from a paper machine). CTMP gives more bulk and stiffness. The top ply (inside) is made of bleached chemical pulp. The barrier coating depend of the application and might be applied on both sides. When induction welding is employed an aluminum foil layer is used for barrier protection and for heating.[3] The back side of the board is the printing side and might have an extra ply made from chemical pulp of quality that is suitable for the printing applications. Liquid packages are normally heat sealed.
Greyboard is an interesting product. This is starting with its raw material – waste paper. Carelessly thrown away it would be a nuisance, but purposfully collected and gently preprocessed at Merckens it is a material with unlimited fields of applications – priced with the environmental protection sign “Blue Angel”.
A manufactured board with a wood fiber or wood chip center and bonded veneer faces on both sides.
Cardboard consists of a number of thicknesses of paper pasted together, pressed and polished on two surfaces. Ordinary cardboard consists of two sheets of white paper with a sheet of cartridge paper between them, and the thickness of the board is determined by the stoutness of the paper.
Used in label & packaging applications, Metallized Products are highly engineered composites made of an ultra-thin layer of aluminum combined with special paper or film substrates in various qualities and weights.
A printed circuit board is made from a layer of insulating material such as plastic or some similar material. Copper circuit paths are bonded to one side of the board. The circuit paths consist of traces, which are like the wires that connect components, and pads, which are small circles of copper that the component leads can be soldered to.