In addition, it effectively counteracts machine vibrations and prevents vibration marks, which distort the printed image. Compared with conventional foams, the polymer foam also has a very high degree of stability and regains its original form perfectly. An even greater distribution of pressure is guaranteed by the smaller uniform cell size structure. The high performance polymer foam (HP) employed plays a key role. The DuploFlex HP 5 product is used for difficult and demanding printing jobs. One UK customer recently ran a multi-colour line and process job for 1.9 million metres without the need to change tape. The compression features and recovery of these products make them suitable for all plate types and images, from short to long runs. The basic DuploFlex 5 range consists of several compressible adhesive tapes that differ in terms of foam hardness and adhesive strength. Additionally every linear metre of foam mounting tape passes through a thickness measurement unit to ensure it conforms to a stringent thickness tolerance.’ ‘This construction is proven to support all these variables. ‘With ever increasing image detail/complexity, finer screens, more lines per inch, finer aniloxes, higher densities, the plate mount tape comes under a lot of pressure (excuse pun) to perform,’ said Bob Drew, national sales manager, graphics products. Its DuploFlex range of plate mounting tapes is manufactured with a double-sided flexible PE-reinforcement system which offers superior results in the transfer of the printed image. Lohmann Technologies UK, a subsidiary of the Lohmann Adhesive Tape Group, explained that it is well aware of these special requirements and what can be achieved. It cushions vibrations and further accommodates the varying degrees of hardness of the numerous printing plate variables. The adhesive foam tape also acts as a substructure under the printing plate, allowing accurate transfer of the plate image to the substrate. The adhesive requirements are simple: bond to the sleeves/cylinders and plates as securely as possible during printing to completely eliminate any possibility of plate edge lifting or bubbling and when the job is done, remove easily. The adhesive can be the distinguishing factor between having to clean off residues when the job is stripped, or having the tape removed cleanly with little to no required cleaning, said 3M. The latter should be possible without leaving any residue on the plate or cylinder so that job changes can be done as quickly as possible. Balancing the tack level of this tape is crucial as it both needs to hold the plate in place, ensuring there is no movement during printing, and also has to be easy to remove when demounting at the end of the job. Tapes for flexo printing are precision engineered double-sided adhesive structures consisting of several layers of material, including compressible foam, reinforcement film, release liner as well as the actual adhesive. Although it may seem that the tape is simply there to stick the plate to the printing cylinder, the increased demands from the flexo printing process, such as higher running speeds, faster changeovers and cost reduction, mean that the importance of this component cannot be overlooked. Or is is just any size of that 2 pound tape is limited to holding 2 pounds.Deciding which tape is right for each print job is a significant factor in the quest for efficiency and process reliability. This may seem like a dumb question, but when you refer to the 2 pound or 5 pound strength of the mounting tape what size would the piece of mounting tape be?įor instance if I use the tape with the 2 pound limit does that apply to a certain size of the tape, like 2"x2" and if I use a bigger piece will it hold more weight? When we tried other types of tape the candy fell off because it was too heavy.
The mounting tape worked really well for mounting the candy. Our daughter made a cute candy-gram poster using candy in place of words for her boyfriend. When you are working with decorative items it really isn't necessary to use the heavy duty mounting tape. We really enjoy making posters, cards, and invitations, using mounting tape. If you are hanging something in your house that weighs more than two pounds (which I don't think would be too often) you should use another method, just to be safe. June 16, - I would stick with the weight limit no matter how much tape you use. How Do I Choose the Best Mirror Adhesive?.
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