VAN AMSTEL, LEONARDUS HENRIKUS MARIA,VAN DE WALLE, JACOBUS IZAAK
申请号：
NZ56974007
公开号：
NZ569740A
申请日:
2007.01.30
申请国别(地区):
NZ
年份:
2012
代理人:
摘要：
A method of applying stretch film wrapping to an agricultural bale (10) which is of rectangular cross section and using a bale wrapper apparatus which comprises: a table which supports the bale and which operates to rotate the bale generally about its longitudinal axis (11) during a wrapping cycle a dispenser reel arrangement (16, 17) from which stretch film wrapping is withdrawn so as to form successive overlapping windings of film which cover the bale and means which applies relative rotation between the table and the dispenser reel arrangement about a second axis (14) which extends substantially perpendicular to the first axis during the wrapping cycle. Each winding of film includes a longitudinal edge strip portion (30a) and an adjoining longitudinal strip portion (30b). The longitudinal edge portion has different deformation properties from the deformation properties of the adjoining portion so as to be more readily extensible under a given load than the adjoining portion, thereby enabling the winding to tighten itself around each corner (15) of the bale, at least minimising the generation of creases or wrinkles in the film winding at each corner region of the bale.
