High Quality Hot Melt Fabric Laminating Machine

High Quality Hot Melt Fabric Laminating Machine

It's be mainly used for bopp film gelatinizing producing,The tape is mainly used to seal the box, seal the cover and bind the articles, and can also be used as office supplies.

High Quality Hot Melt Fabric Laminating Machine

Calculation method of BOPP tape cost

Core tips:

     Commonly used specifications for sealing tape are 5.5cm, 45cm, etc. The general unit is expressed by "m" or "code" (1 yard = 0.9144m); the calculation method of the unit price of each coil is usually calculated by "yuan/square meter". The price of tape, the average merchant is reported to the customer according to the price of a roll, so simple and more clear. Sealing tape specifications:

     It is expressed by "width × length × thickness", where "width" is the width of the tape, generally expressed in mm or cm, generally ≥ 12mm, common specifications are: 5.5cm, 4.5cm, etc.; "long" is opened for the tape The total length in the future is generally expressed by "m" or "code" (1 code = 0.9144m), common lengths are 50m, 100m, 150m, 200m, etc.; thickness refers to the total thickness of BOPP original film + adhesive layer (unit: Micron, μm), commonly used 45 ~ 50μm. Such as "5cm × 100m × 50μm".

The calculation method of the unit price of each roll of tape:

     The tape industry usually uses “yuan/square meter” to calculate the price of the tape, then “price per roll = width (m) * length (m) * square price”.
The specific price has a large fluctuation according to the cost, because BOPP film and glue are all petroleum products.

     The price of BOPP precoat film is based on BOPP film thickness, EVA coating thickness, and order quantity.
Generally BOPP pre-coated film, BOPP film thickness is 12-20 microns, the thickness of the glue layer is 5-15 microns, and the glue layer is EVA.
In this way, the specific price can be calculated based on the thickness of both.

High Quality Hot Melt Fabric Laminating Machine

Advances in coating technology
     Advances in coating technology require the continuous development of pigments, adhesives and auxiliaries, and coating auxiliaries are becoming more and more important.
     As the solids content increases, the viscoelastic properties of the coating become more and more important. The interaction between the various components in the coating results in the structuring of the wet coating and exhibits significant viscoelastic characteristics. It would be beneficial if such a structure of the coating could be effectively broken under shear and recovered quickly after metering. On the one hand, it exhibits good runningability, on the other hand, it has less migration of coating adhesive and good coating coverage. However, at very high solids, the viscoelastic structure does not eliminate to the desired level. As a result, problems that may occur with the above-described blade coating and metering size press coating are produced.
With theoretical breakthroughs and technological breakthroughs, WRRM, which can significantly reduce the viscoelastic properties of coatings, has begun to emerge. The addition of this WRRM not only allows the          Coating to exhibit lower viscoelastic characteristics, but also helps to quickly eliminate viscoelastic properties under shear and renders the coating viscoplastic at high shear rates. Such a coating can achieve better blade and metering size press coating runability, and can increase the solids content by 2 to 3%, while the high shear viscosity is the same or lower.
     Spray coating and curtain coating require a new coating aid to achieve good runnability. For example, a wetting agent is required in the coating to allow the spray coated coating to drip and stabilize the curtain coated coating curtain. More importantly, spray coating requires a low coating viscosity, and curtain coating requires a suitable coating elongation viscosity and other properties may also require suitable additives to match.
     In addition, coating auxiliaries also show a trend of versatility. Rheology and water retention modifiers have some of the functions of lubricants, and even some companies claim to function as water repellents; new lubricants show many of the characteristics of rheology modifiers.

About

Zhengzhou EAST IMPORT AND EXPORT co., ltd . ( a goulian group of company) a manufacturer and exporter for all kind of packaging machinery , like bopp tape coating machines, bopp tape slitting machines. Bopp tape core cutter, bopp tape core loader etc

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