Carbonless Paper - Purelypaper.co.uk
Idem Digital Carbonless Paper |
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The following sections are designed
to give you a better understanding of Idem Digital carbonless paper,
how it works and its useful applications. Simply click on the relevant
headings to access the detailed
information in the window below.
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Why use Idem Digital carbonless paper? |
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IDEM Digital carbonless paper is designed to be printed
on most digital and conventional printing devices (ie. laser printers
and copiers) in both mono and colour.
Conventional carbonless paper is not optimised
for use on laser printers and this can lead to the following problems:
- The paper weight and moisture content
may be inappropriate for laser printing, leading to excessive
paper curl and jams.
- Laser toner adhesion is poor compared to standard
laser grades.
- Friction and pressure induced by the paper
sheet transport within the digital printing process leads to capsules
damage. Solvent may then spread onto the rubber transport rolls
and laser drum reducing their lifespan
- High temperature involved during the fusing
process can make the solvent fume with some unfriendly odours.
The Idem Digital carbonless paper range meets these drawbacks
with optimised weight and moisture content, a unique CB topcoat
and special solvent system which offers:
- Good runnability
- Best in class toner adhesion
- No rubber or drum deterioration
- No unfriendly fumes
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The advantages of Idem Digital carbonless
paper
- Time and cost saving – forms with personalised data (eg.customer
name, number and contact details etc) can be printed on demand
and completed as required. Save on the costs of warehousing large
quantities of pre-printed forms plus reduce the risk of being
left with obsolete or out-of-date forms.
- Customer satisfaction – less administrative time required
filling in forms by the user.
- Organisational efficiency: coloured paper copies for easy filing
and distribution.
- Security – Digital carbonless papers enable printing
of multi-part forms with unique barcodes for traceability and
security features. Also, when signed, carbonless papers have a
value of proof.
- User friendly: universal use – in and outside the office,
for both manual and machine imaging, with flexibility to add information
at a later stage.
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| Idem Digital carbonless paper - how does it work? |
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An IDEM copy is the reaction
of two separate coatings under pressure (from a pen, impact printer,
typewriter, etc). One coating, CB (or coated back)
consists of pressure sensitive microcapsules, containing colourless
dyes known as colourformers, dissolved in an oil. Under pressure,
these capsules rupture, releasing the dyes which are then absorbed
by the second coating, CF (or coated front). The
CF coating is a highly absorbent coating which
transforms the colourformers into a sharp, intense image.
There are 3 grades of Idem Digital carbonless paper:
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Applications for
Idem Digital carbonless paper |
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IDEM Digital carbonless paper is versatile and
easy to customise. For use with laser printers, copiers and digital
printing technology, Idem offers flexibility to save on costs by
creating your own multi-part forms in-house. Ideal for producing
high quality, short run business forms on-demand. Advantages include:
- Economic short run printing jobs
- Fast turnaround for differentiated multipart forms
- Variable information printing such as barcodes, numbering or personalized
forms
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| Suitable for a wide range of applications:
- Invoices, Orders, Expenses forms
- Delivery notes
- Enrolment forms
- Legal documents
- Pads
- Finance forms
- Agreements and contracts
- Medical forms
- Market Research questionnaires
- Internal forms
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| How
to use Fanapart adhesive |
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For the completion of self
separating cut sets, such as purchase orders, invoices and
transportation documents, always use IDEM Fanapart
Adhesive – the only product guaranteed for
the IDEM range of products.
The adhesive works on the principle of
greater absorption between two coated surfaces. Where there
are no coatings, such as between the under side of the CF
and the upper side of the CB sheet, separation
will occur to give individual sets (figure on left).
IDEM Fanapart Adhesive
is available in ergonomically designed, easy to pour, 2 and
5 litre containers, and comes complete with a vision strip
that shows the amount of adhesive remaining.
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Instructions for use |
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IDEM
Fanapart Adhesive does not rely on grain direction,
the choice of edge to be glued can be determined by customer
requirements, however all sheets to be glued must be of the
same grain direction.
(figure on left) |
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Preferably guillotine
a skim-trim from the edge to be glued and have a margin of at
least 3mm free of printing ink.
(figure on left) |
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Align the stack carefully at the edge to
be glued especially where the top or bottom sheets are heavyweight
qualities.
THE STACK HEIGHT SHOULD NOT EXCEED
30CMS.
A heavy weight to hold the stack down is
unnecessary. Place a wooden board across the full width of
the edge of the stack with a weight on top of it. Use a maximum
1kg weight for a 30cm stack. The purpose of the weight is
to avoid the upper sets moving during gluing and not to compress
the stack. (figure on left)
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Use fresh adhesive.
The adhesive is ready for use, but must
be well shaken before use
(figure on left). |
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Apply sufficient
adhesive using a flat, soft, clean brush of 50-60mm width. Two
liberal coats should be applied wet on wet with horizontal strokes
from the centre of the stack to the edges
(figure on left). |
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At a temperature of 20-25°C
the sets may be separated and moved after 45 minutes of drying
although the glue will not be completely dry. To separate individual
sets, fan the stack from bottom to top only.
(figure on left). |
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Ideal workroom temperature is 20-25°C and 50%
relative humidity. Lower temperatures may retard the drying time
of the adhesive. Low humidity may affect the bond strength achieved
and should be avoided.
The adhesive should be stored in cool light free
conditions and the container stored closed.
The adhesive is designed for use with conventional
CB, CFB and CF set constructions. |
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Padded cut sets
Some cut sets may be finished as pads;
conventional padding glues can be used.
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General gluing
IDEM can be spot, or line glued. As some adhesives can
affect the copy intensity of IDEM, check with your adhesive supplier
for advice
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Solution Finding - Finishing
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| Question |
Diagnosis |
Solution |
| Sets stick together? |
Poor separation – blocking. |
Ensure correct collation.
Use IDEM Fanapart Adhesive.
Reduce weight applied on stack during drying.
Reduce quantity of glue on second coat.
Ensure no more than 30 seconds between coats of glue. |
| Sets fall apart? |
Poor bonding. |
Use maximum 1kg weight for 30cm stack.
Apply more glue with first coat.
Allow longer natural drying time.
Clean guillotine knife. |
| No copy? |
Sheets upside down.
Wrong grade used. |
Check before printing and collating.
Check collating sequence. |
| Poor copy intensity? |
Damage to CB. |
Compare with unprinted paper.
Reduce impression pressure to minimum.
Use compressible blanket. |
Discoloration?
– Lines |
Damage to CB. |
Adjust pressure of lay on wheels or move
– Lines to edges. |
Discoloration?
– Overall |
Damage to CB. |
Reduce blanket to impression cylinder pressure. |
Discoloration?
– Guillotine clamp marks |
Damage to CB. |
Check for gutter/channel mark.
Check knife angle.
Use softer clamp material. |
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| STRAIGHT or REVERSE pre-collated forms –
how to decide |
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Whether you require straight or reverse pre-collated
sets will depend on your type of printer; how you load the paper
tray and how the printer outputs printed sheets. Use the following
guide to help you select the correct collation of forms for your
printer.
We would recommend that if you are in any
doubt, you should conduct testing on your printer to determine which
product is right for you. Simply click
here to request samples
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| STRAIGHT
or REVERSE PRE-COLLATED sets.
How to choose the right one for your printer |
| How
do you load paper into the paper tray?
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Does
your printer pull from the top of bottom of
the stack?
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How
does your printer present printed sheets?
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Straight
or Reverse
pre-collated
sets? |
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| Face Up |
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Top |
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Face Down |
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STRAIGHT |
| Face Up |
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Top |
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Face Up |
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REVERSE |
| Face Up |
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Bottom |
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Face Down |
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REVERSE |
| Face Up |
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Bottom |
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Face Up |
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STRAIGHT |
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| Face Down |
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Top |
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Face Down |
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REVERSE |
| Face Down |
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Top |
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Face Up |
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STRAIGHT |
| Face Down |
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Bottom |
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Face Down |
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STRAIGHT |
| Face Down |
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Bottom |
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Face Up |
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REVERSE |
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The end of each ream of Idem Digital carbonless
paper has a label on it which displays an arrow showing the direction
of the enclosed paper.
Depending on your equipment, you'll load the ream
of paper either Arrow Up or Arrow Down.
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Purelypaper Ltd provides all information
in good faith but may not be held liable for loss or damage arising from
action based on these Buying Guides.
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as expressly provided in our User
Agreement. |
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