摘要:
The invention relates to a stretchable multi-layer barrier film, in particular a stretch film for wrapping bulk products, comprising at least one barrier layer arranged between two polyolefin layers, and to use of the film as an agricultural film such as a silage film, a pallet wrapping film, or a waste wrap film. Advantageously, the multi-layer barrier film may have a low transmission of oxygen and water vapor, and a mechanical performance comparable for example with a conventional silage film. The film is adapted to retain its qualities upon further stretching.
摘要:
The present invention provides a multi-layer stretch film comprising at least one core layer and two exterior layers sandwiching said at least one core layer, wherein said at least one core layer comprises calcium carbonate at a content of from 0.1 to 10 % by weight based on the total weight of the multi-layer stretch film and a polyolefin. The multi-layer stretch film has properties suitable for use in agriculture and/or industry, and can be produced at a relatively low cost.
摘要:
The invention provides a forming and wrapping unit (2) for forming material into a continuous bar (20) and wrapping said material the unit comprising: a forming chamber (6) for forming material into a continuous bar; sheet wrapping means (4) for wrapping said continuous bar; and control means operating on said sheet wrapping means, wherein said sheet wrapping means and said control means are adapted to be operable independently of a rate of feeding bulk material into the forming chamber. The invention also relates to a method for forming and wrapping material into a continuous bar, comprising feeding said material to a wrapping position while forming said material; wrapping sheet around said material such that said sheet at least partly overlaps a previously wrapped round of sheet; and transferring the wrapped material from said wrapping position to a storage ready position. The step of feeding the material to a wrapping position and said step of wrapping sheet around the material are separately operable. The method and the apparatus of the invention are versatile and cost-efficient, allowing optimal forming and wrapping of different materials for a variety of purposes.
摘要:
The present invention relates to a plastic film having reinforced edge portions, and to a process and apparatus for producing the film. The film is produced in a process where the film (2) is advanced from film providing means (1,1b) to film collecting means (8) along a transfer path, and the film is divided in the direction of transfer into at least two essentially parallel film sections. The film sections are then stretched by a stretch unit (4) in the direction of transfer beyond the yield point such that reinforcement of each one of the edge portions of said film sections are provided due to material shrinkage of the edge portions in the direction lateral to the direction of transfer.
摘要:
A prestretched polyethylene film having a longitudinal degree of pre-stretching above 70% and a remaining longitudinal elongation capability of at least 300% as determined according to ASTM D882, wherein the thickness of the film is in the range of 10-30 µm and wherein the film comprises at least 25% by weight of a linear low density polyethylene (LLDPE) substantially free from long chain branching (LCB) and having a density below 915 kg/m 3 . Use of the prestretched polyethylene film as an agricultural balewrap film or silage film, pallet wrapping film, or waste wrap film.
摘要:
A prestretched polyethylene film having a longitudinal degree of pre-stretching above 70% and a remaining longitudinal elongation capability of at least 300% as determined according to ASTM D882, wherein the thickness of the film is in the range of 10-30 µm and wherein the film comprises at least 25% by weight of a linear low density polyethylene (LLDPE) substantially free from long chain branching (LCB) and having a density below 915 kg/m 3 . Use of the prestretched polyethylene film as an agricultural balewrap film or silage film, pallet wrapping film, or waste wrap film.
摘要翻译:根据ASTM D882测定的纵向预拉伸度大于70%并且剩余纵向伸长率至少为300%的预拉伸聚乙烯薄膜,其中薄膜的厚度在10-30μm的范围内,并且其中 该膜包含至少25重量%的基本不含长链支化(LCB)且密度低于915kg / m 3的线性低密度聚乙烯(LLDPE)。 使用预拉伸聚乙烯薄膜作为农业包扎膜或青贮膜,托盘包装膜或废弃包装膜。
摘要:
The present invention relates to a prestretched polyethylene film having a longitudinal stretch ratio of from about 1:2 to about 1:4 and having a longitudinal elongation capability of at least 170 %, said elongation capability comprising an elastic component. The invention also relates to a method for producing said film and to a method of wrapping compressed bulk material such as a round bale using said film, the method comprising further stretching the prestretched film and applying the film around the compressed bulk material in direct contact therewith. The film according to the invention may be used as a net replacement film and allows increasing the efficiency and the economics in the baling process by allowing faster baling, use of a lesser amount of wrapping film and/or improved protection of the product.
摘要:
The present invention relates to a protective wrapping (100) for a cylindrical object, comprising: an essentially square plastic film sheet (102), having a length exceeding the length of the circumference of the cylindrical object to be wrapped and a width exceeding the width of the cylindrical object to be wrapped, and having an inner face and an outer face referring to the orientation of the film when wrapped; the plastic film sheet comprising two foamed plastic strips (104,106) arranged on the inner or outer face thereof, the strips arranged essentially parallel in the length direction of the plastic film sheet, at a distance from each other such that the foamed plastic strips can cover and protect the edges of the cylindrical object when wrapped. The present invention further relates to the use of the protective wrapping for wrapping a cylindrical object, particularly a reel of plastic film for baling applications.