Touché® Production Guidelines
|Caliper ||Basis Weight|
(20" x 26"/500 sheets)
|.013”/0,330 mm||111 lb/301 gsm |
|.024”/0,610 mm||232 lb/626 gsm |
Note: Determination of the suitability of Touché for the intended use is the user’s responsibility. Due to the specialty nature of this sheet, and variability of individual pressroom equipment/conditions, sample sheets should be fully tested prior to actual print run.
Acclimation of Stock
Touché should be fully acclimated to the environment (with shrink wrap on) well before press run.
Please note that while capable of being Offset Printed, heavy ink coverage on the Touché is not recommended. The soft feel of the product will be compromised in heavy areas of coverage. In addition to compromising the feel, heavier ink coverage will require longer dry times that can lead to problems with ink set off.
Printing Touché is similar to printing on plastic. While Touché is not a plastic surface, conditions used when printing plastic apply to this surface. The surface reacts with the water from the press, in a similar manner as a plastic surface. As such, running the water to the minimal setting is recommended.
100% oxidizing, high solids inks are recommended.
Lift size should be of 4” or smaller, to alleviate set off.
Drying compounds may shorten drying times but should be used with caution as overuse may cause a staining or ghosting to occur on the Touche.
A spray powder of 52 micron size, silicone based, is recommended. Ink coverage and lift height will affect your final choice.
When printing the .024” material, a smaller sheet size of 20” x 26” (grain long) will provide ease of delivery, as well as help alleviate set off in areas of heavy coverage.
When possible, ink chemistry should be tested on this stock. As is sometimes a problem with coated stocks, certain inks can create a chemical based ghosting or staining of the Touché. Caution should be used when printing solids or PMS colors on lighter grades of the Touché, as Touché is known to be susceptible to ghosting under these conditions. Please call for additional recommendations.
Depending on the opacity of particular ink, a double hit, or opaque white, may be needed as an under layer on the darker colors of Touché. For optimal opacity on Black Touché, metallic inks are recommended. Metallic ink can also be used as an under layer for other inks, since metallic inks have greater opacity than opaque white. When metallic inks are used, a spot varnish should be applied to prevent set off.
For optimal results, we recommend screen size of up to 150 lpi. Under-color removal may be required on jobs with large dark areas.
As with other black matte coated stocks, some infrared press sensors may have trouble detecting Black Touché. Consult with your press manufacturer. Some printers have overcome this issue by applying white tape along the edge of the first few press sheets.
Touché can be printed UV offset as well.
Aqueous and UV coatings can be used on Touché, however the soft finish will be compromised where coating is applied. Spot UV, and spot varnishing are recommended.
Foil Stamping and Embossing
Copper or brass dies are recommended.
Metallic foils are recommended. Crown metallic foils with a loose release (BW88 and BD92) and Nakai NV have worked well.
If choosing a pigmented foil, caution should be taken to work with your foil supplier and test thoroughly before committing to artwork as some of our customers experience problems attempting to stamp with pigmented foils.
Large areas of foil coverage are not recommended; limit fill areas to approximately a 2” x 2”.
Due to the density of 24 pt. Touché, simple, single-level dies are better suited for foil embossing and blind embossing. A two-step process (stamp, then emboss) will yield best results for foil embossing on the 24 pt. sheet. Dies should have rounded corners to prevent creases.
Typical temperatures for stamping and embossing range from 240-260°F, and should not exceed 300°F.
Touché yields excellent results with screen printing. Solvent or water-based inks are recommended. Test with your screen printer.
For pocket folder or portfolio applications, 3M 924 and 926 transfer tapes have worked well with 13 pt. Touché, 3M 969 is recommended for use with the 24 pt. For automated systems, HB Fuller HL3363 has worked well. For automatic perfect binding applications, PUR adhesive (National Starch or Henkel brand) is recommended, as well as US Adhesives HM-661 (white) and HM-426 (clear). Consult your printer and/or bindery. Alternatively, the spine area can be sanded or scuffed before applying standard hot melt or cold liquid glue.
Cutting and Die-cutting
Touché Cover can be guillotine, rotary or die cut. All normal steel ruled die cutting processes may be used. It can be cleanly punched and will readily accept all conventional fasteners, such as grommets.
Scoring and Folding
Touché scores and folds well and has good hinge/fold characteristics. See Touché Scoring & Folding Guidelines below.
Touché Scoring & Folding Guidelines
FiberMark Touché can be scored and bent to make very satisfactory hinged products required for a number of applications, providing the operation is within the limits required for this particular material. General guidelines provided by the Recycled Paperboard Technical Association (RPTA) can be used to assist the proper decisions for rule and channel dimensions, while taking the non-traditional nature of the material into account.
To fold and bend these materials, the stiffness of the sheet at the bending line needs to be lowered and a flexible “hinge” formed within the sheet itself. This is achieved by scoring.
A satisfactory score must reduce the bonding strength of the sheet along the line where the board is folded. In addition, the width of this area must be great enough to allow the material to squeeze down into a “bead” on the inside of the bend. A well-defined bead hinge is not likely with 13 pt. Touché due to the high internal strength of the sheet, however, this should not affect hinge performance .
Touché scores and bends better, when processed at the normal moisture content (as manufactured). Material that has lost its normal moisture content by exposure to a low-humidity atmosphere, is more likely to crack when scored and bent due to the dry condition of the sheet.
Scoring Rule Selection:
Two major considerations define the conditions that direct the choice of scoring rules for a job. First, the female channel width should be slightly < or = to twice the board caliper plus the thickness of the rule. Second, female channel width must be between 3.5 and 4 times the board caliper for CD scores, and about 3.5 times the caliper for MD scores.
Touché is 20-30% denser than traditional boxboard, and its construction gives it greater plybond than equal caliper boards of lower density. Therefore, the board needs to be treated as if it were higher in caliper than it actually is.
Application of the above considerations indicates the use of a 2-point rule for the 13 pt sheet (0.028” rule thickness). The male rule depth of penetration can be adjusted between 0.004” and 0.010” to achieve a sufficient score.
Application of this density factor to 0.024" Touché, indicates an “effective board caliper” of 0.031”. Application of the above considerations indicates the use of a 4-point (0.056” rule thickness). The male rule depth of penetration can be varied between 0.010” and 0.024” to achieve sufficient delamination of the plys.
For decorative packaging applications using 0.024” Touché. While a 4-point rule is sufficient for fixed scores on box corners, a larger score is necessary to handle the additional stress demands of a box hinge where the score line may be folded 90° the opposite way. Packages designed in this manner would require a 6-point rule for such hinges. Channel width for these scores should be about 0.172” for CD scores and 0.162” for MD scores. Depth of penetration of the male rule should be in the same range as the 4-point.
Scoring rules should be rounded to prevent cutting the board (we suggest rounding at a 0.005” radius)
Rule width: In die cutting terminology, rule width is characterized by the term “point”. One “point” is equal to 0.014”. So, a 2-point rule is 0.028”, a 3-point rule is 0.042”, and so on.
Rule selection: Two criteria need to be met simultaneously in order to indicate an appropriate rule choice for a given caliper board (see Scoring Rule Selection). The selection of a 4-point rule for 0.024” Touché can be verified by applying its width and the “effective board caliper” (31 pt) to the criteria.
Female channel width less than or equal to 2x board caliper + rule thickness
Female channel width less than or equal to 2 x 0.031" + 0.056" (which is 0.118")
Female channel width between 3.5 and 4 times board caliper for CD scores.
3.5 x 0.031" = 0.1085" and 4.0 x 0.031" = 0.124"
A 4-point rule is the first rule width that satisfies both criteria.