ITMA Asia + CITME 2014 Exhibitor Preview: PTC Group: Graf + Cie AG
WINTERTHUR, Switzerland — April 2014 — As a renowned partner supplying premium components for key processes in the short staple spinning industry and nonwoven applications, Graf is the leading manufacturer of metallic card clothing, stationary flats and flexible flat clothing, circular - and top combs for most major producers of carding and combing machines, roller cards as well as spinning mills. Graf provides added value to customers spotlighting convenience at work, superior performance and focusing on high quality yarn output.
Resist-O-top flexible flat clothing
The resist-O-top generation of flexible flat clothings for processing of cotton, man-made -, and regenerated fibres as well as for blends and swing applications is another of Graf’s innovations with a noticeable impact in the market. The resist-O-top setting pattern favours the extraction of short fibres and trash as well as the elimination of neps. This flat series is progressively set without straight gaps between the rows of teeth. The wire dimensions for all C and M-types are selected with a difference of 5 numbers. The whole range of flats is available for all different types of cards.
DSW Flat Grinding Roller
The flexible flat clothings which are manufactured with utmost precision have a considerably larger effect on the carding quality than the cylinder clothing. The number of neps in the card sliver is primarily determined by the condition of the flat clothings.
For the periodic resharpening of the flat clothings on the card, Graf has developed the DSW flat grinding roller. It allows the economical and precise resharpening of the flat clothings. Throughout the life time of the flat clothings the resharpening process can be repeated at least 3 to 4 times, contributing to a large degree to constant nep values and yarn quality.
The DSW flat grinding roller is available for cards with working widths from 40” to 60”.
TSG Traversing Resharpening Device
The activating of today’s high-performance metallic card clothings calls for high demands on the skill of the maintenance personnel. It is extremely difficult to resharpen these very fine clothings burr-free with conventional grinding equipment. The resharpening of CUTTYSHARP clothings with such equipment is virtually impossible as the clothings made from this high alloy tool steel throw hardly any sparks during the resharpening process with a rotating grinding stone. Only the application of the TSG assures proper maintenance, full life-time and constant quality of these high-precision metallic clothings. The TSG is available for flat cards from 40” to 60” working widths.
ASG Doffer Resharpening Device
Specially developed device for the activating and resharpening of doffer wires on Rieter C60 and C70 cards equipped with IGS.
Posted April 15, 2014
Source: Premium Textile Components (PTC)