System for testing air permeability of melt-blown non-woven fabric
A technology of melt-blown nonwoven fabrics and testing systems, which is applied in the directions of measuring devices, permeability/surface area analysis, suspension and porous material analysis, etc., which can solve the problems of time-consuming testing of fabrics, disassembly and assembly of fabrics, and inconvenient operation, etc., to achieve improvement Effect of Air Permeability Test Accuracy
Pending Publication Date: 2022-02-08
卢江平
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Problems solved by technology
At present, when testing the air permeability of the cloth, the cloth is often pressed and fixed on the test device by using a fixing mechanism. During the detection, it is difficult to test the air permeability of the cloth at different positions of the cloth, and it is time-consuming to disassemble the cloth. Many, the operation is more inconvenient, so it is necessary to improve it
Method used
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[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.
[0026] In describing the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", " The orientation or positional relationship indicated by "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, so as to Specific orientation configurations and operations, therefore, are not to be construed as limitations on the invention.
[0027] refer to Figure ...
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The invention belongs to the technical field of testing systems, particularly relates to a system for testing the air permeability of melt-blown non-woven fabric, and provides the following scheme aiming at the problems that the air permeability of the fabric is difficult to test at different positions of the fabric during detection, the time for disassembling and assembling the fabric is more time-consuming and the operation is more inconvenient: the system comprises a box body, an electric control mechanism is fixedly connected to the outer wall of the box body, and a bottom clamping mechanism is arranged at the bottom of the inner wall of the box body. The detection mechanism is arranged to detect air flow, the purpose of air permeability testing is achieved, a first rotating frame and a second rotating frame are arranged, a third sliding block slides in an annular groove, and therefore the first rotating frame and the second rotating frame can rotate; finally, the air permeability of the two ends of the fabric can be tested through the detection mechanism and the air injection mechanism, the heights of the detection mechanism and the air injection mechanism can be adjusted through the second height adjusting mechanism, and the purpose of testing the air permeability of different positions of the fabric is achieved.
Description
technical field [0001] The invention relates to the technical field of testing systems, in particular to an air permeability testing system for meltblown nonwoven fabrics. Background technique [0002] Meltblowing is a method for forming nonwoven fibrous webs of thermoplastic polymer fibers. In a typical melt blown process, a stream of one or more thermoplastic polymers is extruded through a die containing a dense array of spinneret holes and attenuated by converging streams of high-velocity hot air to form microfibers, which are collected to form Meltblown Nonwoven Fibrous Webs Thermoplastic polymers commonly used to form conventional meltblown nonwoven fibrous webs include polyethylene and polypropylene. Meltblown nonwoven fibrous webs are useful in a variety of applications including acoustic and thermal insulation, filter media, surgical films and wipes, and many others. [0003] The air permeability of melt-blown nonwovens is a kind of fabric permeability, which refle...
Claims
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IPC IPC(8): G01N15/08
CPCG01N15/0806G01N15/082
Inventor 卢江平
Owner 卢江平