湖北11选5走势图

    CHINESE              ENGLISH
The current position :Index > Products > SUTHERLAND 2000 > Ink Rub Tester

Products

Ink Rub Tester

Model: Danilee SUTHERLAND 2000
Price: 面议
分享到:

The SUTHERLAND® 2000™ Ink Rub Tester

湖北11选5走势图 The tester is a motor-driven instrument for moving a weighted test strip over a printed specimen through an arc. The SUTHERLAND® 2000™ Ink Rub Tester, the industry standard for decades, has recently undergone some significant changes to enhance its utility and reliability. Combined with a new ASTM (American Society for Testing and Materials) recommended practice for its use, the Tester is an excellent position to enjoy even more widespread use in the coming years. The result of this work is an affordable abrasion-testing instrument that retains all the features that made it an industry standard plus improvements that ensure it will remain the industry standard in the new millennium. The cover shows the new tester.

In 1990 the stroke of the SUTHERLAND® 2000™ Ink Rub Tester was shortened, which increased the precision and more closely simulates abrasion damage found in the field. Research and other published work in the print-abrasion-testing arena have shown that quick strokes simulate some types of rub damage (most notably shipping damage). One of the biggest problems with the use of the SUTHERLAND® 2000™ had been the lack of a well-publicized test procedure for its use. While a procedure is available with the instrument, there was no nationally available method that could be readily referenced. This has now been corrected with the introduction by ASTM of ASTM D-5264 Ð 92, Standard Practice for Abrasion Resistance of Printed Materials by the SUTHERLAND® 2000™ Ink Rub Tester (copies available from ASTM). the proper procedure for using the SUTHERLAND® 2000™ Tester. Included in this method is the recommendation to use standard receptors of known abrasiveness when conducting a test.

 

The hold down bracket and clips are not shipped pre-installed on the unit  because the ends of the wing nuts would tear at the shipping container,  possibly allowing damage to the unit。 This item is easily installed and  only requires installation one time。 Refer to the page called “Hold  Down for Stock Test Specimen。”  1) Gently tip the unit on the side as shown。 This will not damage the  unit as long as it is done gently。  2) Remove the two rubber feet by gently twisting and pulling the feet。  Remove the wing nuts and the hold down clips from the bracket with the  two holes (this makes installation easier)。 Hold the bracket in place  so that the holes are lined up with the holes on the base and with the  studs towards the end of the unit。 While holding the bracket in place  replace the feet into the holes (a gentle twist maybe necessary to seat  the feet)。  3) Gently tip the unit back to the operating position。 Install the hold  down clips with the wing nuts。 The hold down bracket is designed so  that it can move slightly, adjusts the bracket so it is even with the  end of the unit。 The printed material can now be placed on the pad and  the hold down hooks adjusted to hold pressure on the material to keep  it from sliding。 Caution – Do not use excessive pressure to hold  material in place as it could cause the material to not lay completely  flat。 Use only enough pressure to hold the material in place。

 

I.  Plug in the power cord to the correct voltage, the display will read a  version number such as 1-0. If the machine is already plugged in,  touching any key will reactivate the display to whatever the previous  setting was. For all speed 1 low count rub tests, cycle the machine one  time to allow the machine to reset the exact stroke. Note: If you leave  the machine sit idle, after approximately 60 minutes it will  automatically turn the display off.

 

II。 COUNT BUTTON。 Each time the COUNT  button is pressed the displayed cycle counts will increase by one。 When  the COUNT button is held down, the counts will increase each ½ second。  When the count reaches 10, it will start incrementing by 10's。 When the  count reaches 100 it will start incrementing by 100's。 Anytime the  button is released; the process will start over。 (i。e。 ones, tens,  hundreds)。 While the motor is running the COUNT button is deactivated  and “count” adjustments cannot be made。 Maximum count is 999。 Press  “Reset” to remove the count number readout。 If the motor is running,  pressing the reset will also stop the motor and remove the count number  to 000。 Note: When adjusting the cycle count, the displayed value is  the starting point, not the cycle count previously set。 If the cycle  count is 100 and the motor is started and then stopped at 95, pressing  the COUNT button will set the cycle count to 96。

 

III. START AND STOP BUTTON. This  controls the starting and stopping of the motor. After the count has  reached 0’s, the motor will stop and after a short delay the display  will reset back to the number that was displayed at the time of the  last start cycle. If the motor is running when the START/STOP button is  pressed, the motor will stop. The display is not cleared. Pressing  START/STOP will start the motor again and the count will continue from  the point at which the motor was stopped. Note: The motor will not  start if the display reads 0’s. 

 

IV. MOTOR SPEED BUTTON. Pressing the  SPEED button will increment the motor through speed 1-4. The speed is  indicated by one of the four LED lights. The speed available for  testing are: Speed 1 (21 cycles per minute), Speed 2 (42 cycles per  minute), speed 3 (85 cycles per minute), and Speed 4 (106 cycles per  minute). When the machine is first plugged in it will automatically  default to low speed (i.e. Speed 1) unless you press the SPEED button.  The motor’s speed may be changed at any time, before starting the motor  or after it is running. The speed of the motor is retained when the  “Reset” button is pressed, to change speed press the SPEED button. 

 

 V. RESET BUTTON. This button will  reset the count of the board. When pressed, the display will reset to  0’s. If the motor is running, the motor will shut off. This button may  be pressed at any time.

 

The test requires two pieces of stock, the test specimen and a test receptor. Cut a test specimen, approximately six by three inches. When printed area permits, the sin inch directions should be cut across the grain of the sheet, but must not cross pressed or cut scores.   

 

Prepare test strips of material from the same shipment of stock used in the test sample. Cleanly cut 2 X 7 inch strips   for the four-pound weight are prepared by placing the strip face down against the pin of the scoring device and scoring at the white dot positions to facilitate bending the strip to conform to the test block.

 

To prepare samples for the two-pound weight, 2 X 5 ¼ inch strips are placed face down against the end pin of the scoring devise an scored at the red dot position to facilitate bending the strip to conform to the test weight (See picture tutorial “Test Specimen”).

Clip  a 2 X 7-inch test strip to the four-pound test block, with the abrasive  surface away from the rubber pad. Mount the test specimen securely (if  printed material, mount with printed side up) on the rubber pad of the  base plate.  Using a camel-hair brush, brush the test strip and the test specimen  thoroughly before starting the test to remove any dust or foreign  material. Place the weights over the sample, making sure that the 2 X 4  inch rubber pad of the test block is over the area being tested, that  both surfaces are free of dirt. Preset the tester for ten strokes, or  for any number of strokes selected as standard for a particular  surface.  When the rub has been completed, examine both the test strips for signs  of transfer. The two pieces should be stapled together and used for  visual reference and interpretation. They should be marked plainly with  the number of rubs given. Place the test block on its side after using;  do not place it on the machine or lay it on the rubber base pad.
 
 
Mount  the strips in the same manner as for a dry rub, using the two-pound  test block。 Preset the tester for one rub。 Place three to six drips of  water on the printed surface so that the test block will cover them。  Place the block in position and immediately press the “start” button。  After one stroke, examine both surfaces for color transfer。 Repeat  single strokes until ink failure is noted or the surface of the sample  shows fuzz or abrasion。
 
 
Mount  a 2 X 5 ¼ inch strip on the two-pound test block with the felt or  smooth side out, and saturate the blotter with water (an eyedropper is  convenient)。 Place the wet blotter on the sample to be tested and leave  in place for four minutes。 Remove the block without rubbing and examine  for ink transfer to the blotter。
 
 
Use  a water-saturated blotter on the two-pound block and actuate the tester  for one stroke. Examine the blotter for color transfer. In cases where  extreme water resistance is required, more rubs may be specified. An  alternate procedure consists of mounting a 2 X 6-inch piece of 80X80  count bleached muslin on the two-pound test block over a blotter as  specified above. This procedure has been found particularly useful  since it eliminates the effects of surface abrasion on the blotting  paper.
 
 
Functional Rub is a term of embracing a number of miscellaneous uses for   the SUTHERLAND® Ink Rub Tester。 Ink, which is acceptable under the outlined test procedures, may fail under exposure to foreign liquids or pastes。 For example, certain inks might be tested to conform to specifications such as “one rub, Cod liver oil” or “three rubs, Jones Antacid Toothpaste。” In reporting functional rubs, the operator must specify the number of rubs, the time of contact before rubbing, and the special conditions and testing mediums employed。
 
 
A practical approach should be emphasized in test evaluation。 Few, if any, inks will pass rubbing, wet or dry, without a slight transfer of color。 Decisions on the suitability of ink are best made by running comparative tests, checking an acceptable sample at the same time and under the same conditions。
 
 
 
 A quantitative method of evaluating samples for rub damage has been developed. The test strip (receptor) is measured (zeroed) with a densitometer or a spectrophotometer before the rub test. After the test, the strip is measured again with either the change in density densitometer) or delta E (CIE L*a*b spectrophotometer) reported. The larger the number, the greater the rub damage.
 
 
Consideration must be given to the time interval between printing and testing, particularly with slow-drying inks。 Also prints should be protected from dust and dirt between printing and testing。 
 
 
 An attempt should be made to use test samples which are representative of the run, i。e。, eliminating the use of sheets with excessive anti-offset materials, or sheets taken from the top of a load which may have collected dust or foreign material。
 
 
 The pads should be changed when they become hard or damaged from age and use. The recommendation is six- (6) month minimum. These can be ordered from DANILEE COMPANY. To replace pads, clean metal surface with solvent such as naphtha. Remove the protective back from pressure-sensitive surface. Press this surface to the metal in the proper location.
 
 
 

 

 

GguangZhou ShangZhun Instrument Co., Ltd  
The main products:

澳门最有名彩票网站 四柱彩票开户 广西快3走势 恒发彩票 58彩票开户 澳门最有名彩票网站 辽宁11选5 内蒙古11选5走势图 吉林快3开奖 湖北11选5