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    Home > Active Ingredient News > Drugs Articles > What instrument is needed to detect medical tape?

    What instrument is needed to detect medical tape?

    • Last Update: 2017-08-08
    • Source: Internet
    • Author: User
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    The base material of medical sealing tape is pure wood pulp natural material, non-toxic, non irritant, with good air permeability The medical sealing tape has the advantages of good softness, easy unwinding and convenient operation, and is suitable for the cross type sealing of sterilized cotton cloth used by medical enterprises Some general requirements and special requirements are mentioned in YY / T 0148-2006 medical tape standard Jinan Sanquan Zhongshi Experimental Instrument Co., Ltd recommends the tape testing instruments for these test items: 1 Adhesive The standard requires rolling four times along the length direction of the sample at a speed of about 60 cm / min and keeping it under standard atmospheric pressure for 10 min Make a marking line at the end line of the sample, and stick a heavy object at the hanging end of the sample according to the width of 0.8N (80g) per cm The force shall be evenly distributed with the whole bandwidth Hang the steel plate in a 36 ℃ - 38 ℃ hot air oven for 30 minutes, and make the steel plate incline 2 ° to the vertical surface, so as to prevent the specimen from peeling off from the steel plate, and make the weight hang In order to meet the above requirements, we need to use two kinds of equipment, one is ygj-s electronic roller testing machine, which can ensure the rolling speed of 60 cm / min (i.e 600 mm / min), replace other speeds, or roll manually, which has a great impact on the test results, so we need to use special equipment to make samples In addition, we need to use the chy-hs constant temperature viscosity tester to test the viscosity of the device Medical tape is pasted on human body, so it is required to carry out viscosity test in 36 ℃ - 38 ℃ oven according to the standard Viscosity is sensitive to temperature If the test is carried out under normal temperature or low temperature, the test results will vary greatly Ygj-s electronic roller testing machine chy-hs constant temperature viscosity tester 2 Peel strength The standard requires that the test be pasted on the center of the clean surface of the stainless steel plate so that both sides of the sample are parallel to the two long sides of the steel plate Apply a roller to the adhesive part of the specimen, and roll it four times along the length of the specimen at a speed of about 60cm / min Special ygj-s electronic roller tester is also needed to make samples here It is also necessary to choose a suitable force measuring instrument with a proper range and a force value degree range of 15% to 85% of the full range to measure the force required to peel the sample from the steel plate (the force angle is 180 ° and the peeling speed is 270mm / min to 330mm / min) Observe the force applied at * 25 mm length, observe the force once every 30 mm, and take the average value of six readings Sanquan Zhongshi recommends blj-c 180 ° peel tester to meet the above requirements Blj-c 180 ° peel tester 3 Comfort (extensibility) The medical adhesive tape is elastic and can rebound when it is stretched How does its stretching directly affect the user's comfort? Sanquan Zhongshi recommends XLW (PC) - 500N intelligent electronic tensile testing machine for comfort test XLW (PC) - 500N intelligent electronic tensile testing machine 4 Water vapor transmission The human body will sweat when using the medical tape This part of water needs to be volatilized to the environment through the medical tape If it cannot be or does not penetrate, the accumulated water will affect the wound healing and make people uncomfortable In order to test the water vapor transmission, it is necessary to simulate the actual use environment, need constant temperature and humidity box, travel a certain humidity difference on both sides of the sample, and regularly test the weight change of the moisture box to determine the water vapor transmission 5 Water resistance According to the standard, YY / T 0471.3-2004 contact wound dressing test method Part 3: water resistance test is required The quality of water resistance affects whether the external water can quickly penetrate the medical tape into the wound Once infiltrated, of course, it will cause wound infection Zs-02 water resistance tester is used to test the Sanquan Zhongshi Jinan Sanquan Zhongshi Experimental Instrument Co., Ltd Jinan Sanquan Zhongshi Experimental Instrument Co., Ltd
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