HPF 61 x 71.1 cm (24 x 28 In) 50 sheets

Red Sensitive High Resolution Film
61mm x 71.1mm
4NPJX

In stock
SKU
4NPJX
US$0.00

IDEALINE FILM

HPF is a High Resolution red senstive polyester film.

The Idealine range of films offer excellent line edge acuity for optimal image transfer to photoresists. With a dimensionally stable structure that reduces registration errors the film also incorporates a scratch and abrasion resistant double overcoat which reduces handling defects and extend phototool life This is the Ideal film if you need outstanding process latitude and exceptional line width control

They yield excellent results in Idealine and rapid access processing. Thickness of the polyester base: 0.18 mm (.007”). The films are used for high quality work in the PCB industry, chemical milling and for cartographic and industrial applications with high demands for image quality, scratch resistance and dimensional stability.

 

APPLICATIONS


The films are used for high quality work in the PCB industry, chemical milling and for cartographic and
industrial applications with high demands for image quality, scratch resistance and dimensional stability.
„ 

  • Sub-mil lines and spaces capabilities
  • Consistent quality and controllable line width
  • Very good dimensional stability
  • Excellent line sharpness and line edge straightness
  • Wide exposure and development latitude also gives accurate line width control
  • Stable chemistry and low consumption
  • High scratch resistance
  • Optimal film transport and vacuum behavior

 

Agfa Film from JD-PhotoData

DIMENSIONAL STABILITY


Films that are not dimensionally stable can’t provide the precision and consistent results that today’s applications – and your customers – demand. The Agfa films that our photo-tools are supplied on have single-sided gel technology making the films extremely stable. They are 25% less sensitive to humidity compared to other suppliers – giving you an extremely flexible product that is less variable and allows you to work more efficiently.

 

HOW Does the Environment affect my Photo-Tools ?

The dimensions of your phototool will change under the influence of changes in temperature, changes in humidity, mechanical tensions and ageing. Some dimensional changes are reversible others are not.

Most materials expand with increasing temperatures and phototools are no exception to that rule. The dimensions of all phototools in use today change with changing temperatures and humidity, and the amount of expansion is determined by the thermal and humidity expansion coefficient of the film.

Thermal Properties

CT  in  mm/m °C

Glass phototools

   9

Polyester

 18

Gelatine

 18

Silver halide phototools on PET base

 18

Diazo

 18

 

Most phototools absorb water and thus also expand with increasing relative humidity.

 

Humidity Properties

CRH  in  mm/m %

Glass phototools

                 0

Polyester

                 8

Gelatine

Approx. 100

Silver halide phototools PET base

Approx.   11

Diazo

                  9

 

PET based phototools change rather fast when the temperature changes. The time constant for temperature changes (the time needed to reach 2/3 of the total change) is a few minutes. Glass phototools have a much larger time constant due to their higher thermal mass. So, a PET based phototool will reach its new size in about ten minutes when the film is exposed to the environment from both sides. When several films are piled up, you have to add ten minutes for every sheet. When a film is secured by a very strong vacuum that vacuum may hold the film and prevent it from changing size in response to changes in temperature or humidity. Although the temperature of the film changes the size will not for as long as the vacuum is applied. Once the vacuum is released, the film size will change instantly.

Silver halide phototools react in a more complex way to changes in relative humidity. The dimensional change is partly caused by the influence of the gelatines and partly by the influence of the PET. Gelatines have a time constant for relative humidity changes of only tenths of a second: they act like a sponge. They absorb and desorb much water and do so extremely fast. PET has a time constant for relative humidity changes of several hours: it absorbs or desorbs only a little water and does so very slowly. Approximately 50% of the dimensional change of a silver halide phototool due to fluctuations in relative humidity happens within a second. This is due to the gelatines. The remaining 50 % of the total dimensional change takes literally hours and hours. That’s why we recommend waiting for eight hours for a film to be acclimatised after a change in relative humidity. This timing is only valid when the film is exposed to the environment from both sides. However, when the film is piled up the inner sheets will never reach the new size. The outer films shield the inner ones from the influence of the humidity. The polyester of the outer films can be seen as a humidity barrier. Also here, when a film is secured by a too strong vacuum, that vacuum may hold the film and prevent it from changing its size.

 

FAQ's

 

Q. How many sheets are in a box?
A. The product description shows how many sheets. They are normally between 50 and 100 sheets depending upon the size.

Q. Where can i get technical information?

A. Please see the downloads section on the product page.

Q. How is delivery made?

A. Shipments are generally made by courier on a 2 day delivery. If urgency is required, we can also arrange a next day service if film is in stock. You are also welcome to come and collect film from our Hitchin stores upon pre-arrangement.

 

 

 

 

 

 

 

PDF Download

Material Safety Data Sheet

 

 

 

PDF Download

HPF Technical Information

 

 

 

PDF Download

Quality Assurance Certificate