Slitting and rewinding are core competencies in converting materials for flexible packaging. This proficiency needs to span both commodity and specialty needs. In fact, in today's competitive manufacturing world, the commodity side is a given – suppliers have to deliver quality to survive. On the other hand, companies which have high levels of multiple skills set themselves apart.
Focusing on slitting-rewinding
for flexible packaging starts with consideration of the several markets served.
Specialty labels are everywhere on flexible packages. This includes
increasingly sophisticated bottle segments that feature "no look"
transparent labels, as well as pressure sensitive, as well as a host of film
and laminate labels.
Bags and pouches used for
everything from retail packaging, to food service and medial product
containment, to personal care wet wipes pouch packs. Transparent materials and
multi-laminates are included in these segments, and metalized substrates also
play a role.
Industrial needs include
automotive specialties from tapes and interior application materials, to wall
coverings, ream wraps, moisture-resistant laminates and slick silicone-coated
Winding for intermediate
converting needs amounts to much more than simple slitting of jumbo rolls.
Intermediate slitting requirements are a part of the steps in the laminating
process, both before and after laminating occurs. Post printed rolls comprise
another segment where multiple steps to product completion occur.
Films can be demanding
substrates, with specifications based on product category. Challenges to
rewinding films range from lightweights such as forty-eight gauge to heavy
polystyrenes; from temperature resistant polyester to heat sealable
Arsenal of Techniques
Setup techniques form the basis
for quality results. The choice of equipment and setup make everything that
happens next easier. For example, we choose from a diversified machine base
suited to each substrate challenge, from lightweight to heavyweight and all the
material specifications that must be reviewed. Choices of proper web braking
and controlling, to knife depth and positioning, to proper registration and edge
guide adjustments, along with pre-determined speeds, will impact subsequent
Selection of a particular
slitting method is part of the pre-planning based on films, speeds, diameters
and widths required.
Thick and narrow polyesters will
most likely lead to different machine decisions and techniques. Converters must
be conscious of wound-in tension and the unique characteristics each substrate
poses. A converter may choose two drum surface or duplex winders, specialized
flexible packaging machines, razor or shear slit configurations. There are a
number of diversified production avenues.
In many cases, expertise allows
the industry to get the most out of each production line. Customers realize
that effective outsourcing of critical slitting programs can be successful if
aligned with the right partner. Converters should work closely with the
customer to achieve slit products that mirror the customer’s own in-house
slitting operations. What makes us an asset to our client base and generates
repeat business is the emphasis on effectiveness. Converters must recognize the
need to help solve problems, not add to them. Fortunately, there is a niche for
specialized slitting-rewinding converters with top notch expertise.
converters are aware of the capital investment required to stay out front, and
their employees are steeped in efficient application of everything the
Converters know this dedication
provides mutual benefits to customers and allows for additional services, such
as warehousing and logistics support. After all, it's our bread and butter.
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