Automatic density measuring device for woven and knitted fabrics Densimeter
Tamamura Ltd.
This product is registered by Tamamura Ltd..
About This Product
This device is an optical measuring device that automatically and instantly measures the density of woven and knitted fabrics, wire mesh, etc., that is, the number of threads (warp, weft, etc.), and also inspects for unevenness in weaving.
■How to use
When the fabric to be measured is spread out on a flat inspection table and the densimeter is pressed onto it, ripples immediately appear on the glass surface. If you change the angle of the densimeter little by little while looking at the ripples, or if you shift the densimeter little by little from front to back and left to right, you will notice that the ripples become round, oval, or flow. The ripples can be vertically lined, or sometimes have strange shapes like a parabola, but they can change in a million ways, but you can find the most obvious part and trace the top and bottom of the thin line that passes through the center of the ripples. Read the numbers. That is the desired number of threads.
For example, if a ripple like the one shown in the figure E appears above, the upper end of the thin cursor line that passes through its center point will be between 84 and 86, which means that there are 85 ripples per inch. Also, the number 63 at the bottom is the number of threads for five minutes of whale. The number 51 below is the number of threads for a 5-minute curved length.
These ripples appear in both the warp and weft, so if you want to measure the warp, just place the scale so that the fine lines are parallel to the warp.
■Proportionity
(Weave unevenness) Inspection: If the fabric has uneven weave every 5 to 23 inches, several small ripples may appear at the same time, or one end of the ripples may be chipped, as if it has been cut off suddenly. I understand. If you want to inspect the entire fabric for the presence or absence of spots, carefully look at any part of the cloth, and if ripples appear in the same place many times, the fabric is uneven, and if they appear in different places, the fabric is uneven. I understand that.
■Special phenomenon
As mentioned above, ripples are most clearly visible at the actual number of threads, but at the same time they also appear somewhat faintly at multiples and halves of that number. For example, if there are 100 pieces of fabric per inch, 50, 100, and 200 will appear in three places. Applying this phenomenon, it is possible to measure 25 to 240 fabrics using an E type that only has a scale of 50 to 120 fabrics per inch.
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Product
Automatic density measuring device for woven and knitted fabrics Densimeter
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