How is a pressure seal form sealed?
Why is pressure seal glue called "co-hesive" and not adhesive?
If pressure activates the co-hesive why doesn't pressure from a laser printer cause the activation?
Doesn't the "co-hesive" have little capsules that break when under pressure?
Are there different types of co-hesives in the market today?
Can heat or extreme cold affect a pressure seal form?
Are there any special handling issues for Pressure Seal forms before or after imaging?
What makes a good Pressure Seal form?
What should one expect from the form and from the folder sealer?
Why are there so many different pressure seal patterns?
Why doesn't my form seal tightly?
Why do my forms keep jamming in the printer?
Why do I get offset or transfer of toner
Can any paper be used on Pressure Seal applications?
What about basis weight of the paper?
What is the shelf life of the finished form?
What is Simplex? Duplex?
What is the advantage of simplex imaging?
What is the disadvantage of simplex printing?
What is the advantage of duplex imaging?
What is the disadvantage of duplex printing?
What's the issue with high-end printers in relation to a pressure seal form?
Why do I get print ink offsetting on to my folder/sealers sealing rollers?
Does forms sequencing differ between folder/sealers?
Why do my forms keep jamming in the folder/sealer?
Which machine is the best fit for my application? (How do I choose the model that is right for my application)?
Why do some companies claim that their forms are patented?
What is duty cycle and why is it so important?
What are some of the key features to look for in a folder/sealer?
What is processing speed and why is it important?
Besides typical applications such as payroll and invoicing how else can a pressure seal form be used?
Can I place loose inserts inside a sealed pressure seal form?
How can my customer convert to pressure seal if he/she has programming issues?
How can I justify a Pressure Seal system?
What is Pressure Seal?top
Pressure Seal is a system comprised of a one-page self sealing document and/or a folder sealer for sealing the document.
How is a pressure seal form sealed?top
The form is sealed though a process of folding the form on a pressure seal folder/sealer. Folding the form aligns patterns of "co-hesive" which have been pre-applied to the document during manufacture. Once folded, the document travels through a series of sealing rollers inside the folder/sealer. These rollers apply pressure to the form, which activates the co-hesive and in turn creates a secure "fiber tear" seal.
Why is pressure seal glue called "co-hesive" and not adhesive?top
Unlike a standard adhesive, a co-hesive requires two patterns placed on top of each other to create the bond. In the case of a pressure seal co-hesive, very high pressure is required to activate the bond.
If pressure activates the co-hesive why doesn't pressure from a laser printer cause the activation?top
Pressure Seal co-hesive only reacts when it comes in contact with itself under very high pressure. Pressure and heat as found in a printer has no affect on the pattern.
Doesn't the "co-hesive" have little capsules that break when under pressure?top
Some say that the co-hesive is microencapsulated, however this is not true. Pressure Seal co-hesive has no capsules to break. The chemistry is not like that of carbonless paper. The correct term for the bond is Mechanical Bonding. Press two co-hesive surfaces together hard enough and they will form a bond.
Are there different types of co-hesives in the market today?top
There are numerous types of co-hesives in the market today. The types, chemistry additives and method of application vary from manufacturer to manufacturer. However, the method and process used to apply the co-hesive to the form may be more important than the type of co-hesive used.
Can heat or extreme cold affect a pressure seal form?top
Once manufactured, cold or heat should not affect the product as long as the product is properly wrapped. However, the product should be acclimated to a print room for at least 48 hours before imaging. The raw co-hesive material is another story. If the temperature of the raw co-hesive drops below freezing, the material is destroyed and cannot be used. This is a quality control issue for the forms manufacturer.
Are there any special handling issues for Pressure Seal forms before or after imaging?top
Absolutely. Product must be kept in its original wrap to ensure proper moisture content of the paper is maintained. Product should be climatized in the imaging environment at least 48 hours prior to imaging. Once imaged, the product should be placed curl side down to remove any curl caused by passing through the print device. In general, forms should be put through the folder sealer on the same day that they are imaged.
What makes a good Pressure Seal form?top
Proper co-hesive chemistry and a proper method of applying the co-hesive to the form are key. Pressure seal co-hesive is a volatile compound which requires active Quality measurement during the entire manufacturing process. Important as well is accurate perforation registration to ensure proper alignment of the perforations and co-hesive pattern during folding. Fold assist perforations that float in and out of registration will cause folding problems on a typical folder/sealer. In addition, this may cause the co-hesive pattern to align improperly when the form is folded. Floating registration of perforations will cause feeding problems on a folder/sealer and result in a poorly sealing form. Other factors that play an important part in a good quality pressure seal form are paper type, print quality, packaging and storage. It is important to select a forms manufacturer with knowledge of the critical factors involved in manufacturing pressure seal forms and consistency is key.
What should one expect from the form and from the folder sealer?top
The form should show an aggressive fiber tearing bond after folding and sealing. Anything less is not acceptable. The horizontal perforations on the form should remain in tight registration and not float from form to form. Other specifications of the form such as print quality and cut off accuracy should adhere to normally accepted printing industry standards. The folder sealer selected for the application should be a good fit as far as speed and capacity. The machine selected should show ease of use and robust construction to stand up to the high sealing pressure required to achieve a proper secure seal.
Why are there so many different pressure seal patterns?top
Some co-hesive patterns are patented. Some patterns are used for postal and printer considerations, while others have to be used to allow for the forms manufacturing process. Other patterns are used to allow for different ways of opening the sealed document. In general, one may stick with a few of the basic fold and co-hesive patterns for a large share of the pressure seal applications. However, there are unique patterns which may offer distinct benefits to the end user. Consulting with a trained pressure seal print professional is worthwhile.
Why doesn't my form seal tightly?top
There are many variables some of which have already been discussed. Is the sealing impression on the folder / sealer sufficient? Is the machine poorly designed or not robust enough for the process? Were the forms manufactured with a poor quality co-hesive or did the manufacture use poor quality processes when applying the co-hesive to the form? Are the positions of the fold perforations "floating" from form to form or from ream to ream?
Do the co-hesive patterns align properly after the form is folded. This is especially important and very easy to check. Were the wrong raw materials used. Were the forms stored properly and allowed to acclimate prior to use? A consultation with a pressure seal trained print professional will help avoid many or all of these problems.
Why do my forms keep jamming in the printer?top
Again there are many variables. Maintenance issues on the printer, forms having excessive curl or flexed edges, forms may be blocking or sticking together, weak or poor perforations. However, try to rule out any issues with the printer itself before looking at the pressure seal form as the culprit.
Why do I get offset or transfer of toner
onto the sealing rollers of my folder/sealer?top
Toner transfer or build-up will occur due to the fact that some toner is placed on the outside of the folded document. However, excessive toner build-up can occur as a result of poor toner fusion to the sheet. This is a printer issue. Some toner transfer will occur. Knowing this and dealing with it on a regular basis will avoid problems.
Can any paper be used on Pressure Seal applications?top
No. Only specific papers are compatible with Pressure seal technology.
What about basis weight of the paper?top
Usually 24# and 28# papers are used although 38#, 80# & 100# tag can be used for some applications along with certain security papers. However, one should be aware that not all folder/ sealers handle these heavier basis weights.
What is the shelf life of the finished form?top
Normal shelf life is from 6 months to a year. Assuming proper packaging and storage. Forms that are left exposed to the air will see a rapid deterioration in sealing performance. Leftover reams and partial reams of forms should not be left out. They should be placed back inside their cartons interior bag until the next use.
What is Simplex? Duplex?top
Simplex is a one-sided imaging. Duplex is two-sided imaging.
What is the advantage of simplex imaging?top
Imaging on one side allows for faster throughput because the document doesn't have to pass through the printer twice for imaging. This increases the speed with which batches of forms can be processed through the print device. In addition, many high end print devices incur "click" charges or per page charges for each page printed. Simplex printing minimizes these click charges.
What is the disadvantage of simplex printing?top
Imaging on one side can reduce the area on the form available for the placement of variable imaging via laser or impact printing.
What is the advantage of duplex imaging?top
In general, imaging on two sides of the form increases the area available for variable imaged information.
What is the disadvantage of duplex printing?top
Duplex printing decreases the processing speed because the document must pass through the imaging device twice. Duplex printing also increases click charges which can significantly increase the cost of printing for larger volume applications.
What's the issue with high-end printers in relation to a pressure seal form?top
High-end printers sometimes use oils or agents to assist in the transport of the document through the imaging process. Oils or agents can inhibit the seal. A forms manufacturer with knowledge and background in dealing with high-end printer issues will help ensure success.
Why do I get print ink offsetting on to my folder/sealers sealing rollers?top
Forms use inks which take time to dry. The moisture consistency of the form must be maintained. Thus the reason for wrapping the forms in a moisture proof wrap. This wrap may not allow the ink to dry fully. The extent of the drying of these inks depends on the density of the color and the coverage area. This drying process can take up to 6 to 8 weeks. Forms printed using U.V. cured inks have no offsetting issues. In general, forms that contain large solid areas of ink or have heavy ink coverage should be printed using U.V. printing inks on a U.V. equipped printing press. Does your supplier do this now?
Does forms sequencing differ between folder/sealers?top
Yes. There are some folder/sealers that process forms differently and as a result, forms sequence can be reversed at the out-feed. InfoSealPS folder/sealers have the same out-feed sequencing.
Why do my forms keep jamming in the folder/sealer?top
Forms issues can be the following: curl in the paper, floating registration of fold perforations, dull or dead spots in the fold assist perforations, excessive paper dust creating a build-up on feed and fold rollers, the paper and folder/sealer may be incompatible, forms may be placed in the feeder wrong Folder / sealer issues may be the following: Wrong feed adjustments, wrong fold plate adjustments, bent fold plates, chad or debris in the paper path, worn or burnt out parts, buildup of ink or toner on the transfer and sealing rollers. Is the folder/sealer being properly maintained and under service with a properly trained service network? Many of the above problems can be diagnosed via telephone technical support to get you back up in a very short time.
Which machine is the best fit for my application?top
(How do I choose the model that is right for my application)?
The duty cycle per month is important. However, consideration must be taken as to the quantity per each individual print run. Are there seasonal fluctuations in print volume that may require a larger machine during those periods? Sometimes two smaller units vs. one large one can be the better approach. It is sometimes better, especially on mission critical applications, to have two machines providing redundancy in the event of down time. Other considerations are: the length and width of the form, the fold depths, paper basis weight, and ease of use. A good way of comparing one system over another is to look at the weight of the equipment. Lightweight, lightly constructed folder/sealers are just not going to last over the long haul. Choose a well built machine with a heavy duty sealing section that will last. Total weight of the folder/sealer is a good indication of a well built machine.
Why do some companies claim that their forms are patented?top
Both forms construction, co-hesive patterns and co-hesives have been and continue to be patented. These products can be purchased through the manufacturers that have obtained the patent or from companies who have licensed through the originator. However, pricing may be at a premium due to licensing fees, etc. Purchasing product from a manufacturer who either knowingly or unknowingly sells patented product can be trouble for both the manufacturer and the sales rep. "Similar to" products can be developed and purchased without the worry of patent infringement. These product changes have no direct affect to the end use of the form.
What is duty cycle and why is it so important?top
Duty cycle is the manufacturer's recommendation as to the maximum number of documents that should be processed per month on the machine. It's important to note that the quantity of forms run through the sealer per session must also be considered when purchasing equipment. Reaching a machines duty cycle with one or two heavy volume runs may cause premature wear, overheating and excessive maintenance.
What are some of the key features to look for in a folder/sealer?top
Ease of operation, heavy-duty construction, durability, processing speed, duty cycle, purchase and rental options. The top three features to look at are:
1) What is the weight of the machine? Heavier machines have more robust construction and will perform better. Check the thickness of the side frames to which the sealing rollers are attached. Light weight, light gauge metal will not stand up to the very high pressures endured by the sealing rollers. Over time the side frames will sag causing loss of sealing pressure in the roller section and therefore a loss of sealing quality.
2) What is the size and construction of the sealing rollers in the machine?Are they solid rollers or just lightweight hollow construction? Are the sealing rollers larger in diameter and heavier construction on the high volume machines or does the company use the same size rollers on all its machines? Lightweight sealing rollers will bow under the sealing pressure and this affect the quality of seal achieved. Higher speeds and consistent running require larger, more robust sealing section design. This is of utmost importance to ensure a consistent, secure seal on a pressure seal form.
3) How are paper jams cleared and how accessible is the paper path and the critical areas inside the machine? Does the machine provide a "kick out" feature whereby misfeeds or mis-folded forms can be automatically cleared by the operator? Does the machine provide feedback as to where a mis-feed occurred?
Other important features are ease of fold plate adjustment, sound level, size of in-feed hopper, power requirement. Options to look for are a resettable and non-resettable counter and types of outfeed conveyor systems available. Lastly but probably most important post installation is availability of a reliable and properly trained service network. Who does one call when there is a problem? Is it the form or the machine? Can the problem be solved quickly with phone support or does it require on-site service. A single point of contact for any technical problem is absolutely essential.
What is processing speed and why is it important?top
Processing speed is the optimum speed at which a folder / sealer can operate. However, like a speedometer on a vehicle, certain limitations must be set to maintain consistent processing. When identifying the true output of the folder/sealer considerations such as loading and off-loading and downtime must be taken into consideration. No machine will yield its maximum speed per hour after consideration for loading and unloading forms, clearing jams and normal workday interruptions are taken into consideration. The "actual yield" per hour will be something less than the folder/sealers "maximum speed". Using this approximate figure does the machine still fit the volume of the application?
Besides typical applications such as payroll and invoicing how else can a pressure seal form be used?top
Direct mail is an obvious opportunity when combined with a pressure seal format. There are a number of unique constructions which incorporate return envelopes, ID Cards, labels and window die cuts. In addition, the use of high color offset or digital printing creates a very unique self mailer design. Ask for product samples from the Pressure Seal Plus direct mail collection.
Can I place loose inserts inside a sealed pressure seal form?top
Yes this can be done. Using a specific model of pressure seal folder sealer up to two inserts may be placed inside a sealed pressure seal form. This unique capability is perfect for inserting remittance envelopes, marketing pieces and creating direct mail designs.
How can my customer convert to pressure seal if he/she has programming issues?top
We can assist you by directing you to compatible software available in the market today. There are a number of companies offering "digital presets" that make the transition quick and easy.
How can I justify a Pressure Seal system?top
Cost justification can be sometimes difficult. Some factors for consideration are: maximizing volume while minimizing processing time, costs of traditional envelopes, postage costs, old and outdated equipment, confidentiality, security, labor, and maintenance. Anyone running a highly expensive but very slow traditional inserting line can be shown a better way...the Pressure Seal way! In addition, most one page mailing formats are ideal for conversion to a pressure seal form. Mail shops and implants running high volumes of one page mail on their expensive inserters should review the benefits of converting to a pressure seal system. Emphasis is placed on higher hourly output of mail able documents with a much lower initial equipment cost as compared to inserting equipment.