Softening treatment method of columnar loofah sponge
A softening treatment, loofah technology, applied in fiber treatment, improved hand-feeling fibers, textiles and papermaking, etc., can solve the problems of small planting, inability to meet, destroying the spatial network structure, etc., to prevent yellowing, easy to soften , the effect of overcoming limitations
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Embodiment 1
[0029] Example 1: Density at 30Kg / m 3 -45Kg / m 3 Softening treatment of columnar loofah
[0030] Step 1: After the loofah is washed and dried, cut off the two ends of the loofah with a woodworking table saw, and cut the middle part into a columnar loofah with a length of 3cm-5cm, with a height error of ±0.2cm, and remove the seeds.
[0031] Step 2: Screen out the columnar density at 30Kg / m by wind 3 -45Kg / m 3 The hard columnar loofah of the present invention is used as softening treatment raw material, and the columnar loofah of wind force screening is carried out random inspection by 1%.
[0032] During sampling inspection, the method for density measurement is: first calculate the upper and lower cross-sectional areas S1 and S2 of the columnar loofah (both are the area except the middle hole, such as image 3 Shown), calculate the average and promptly obtain S average, columnar loofah volume V=S 均 *h 高 . Then weigh the mass m with an electronic balance, and obtain the ...
Embodiment 2
[0039] Embodiment 2: Density at 46Kg / m 3 -55Kg / m 3 Softening treatment of columnar loofah
[0040] Step 1: After the loofah is washed and dried, cut off the two ends of the loofah with a woodworking table saw, and cut the middle part into a columnar loofah with a length of 3cm-5cm, with a height error of ±0.2cm, and remove the seeds.
[0041] Step 2: Screen out the columnar density at 46Kg / m by wind 3 -55Kg / m 3 The hard columnar loofah of the present invention is used as softening treatment raw material, and the columnar loofah of wind force screening is carried out random inspection by 1%.
[0042] Sampling method is the same as embodiment 1
[0043] Step 3: Carry out hot-pressing compaction treatment on the columnar loofahs that have been sorted and inspected. The hot-pressing temperature is 70° C., the time is 3 minutes, and the compression amount is 60%.
[0044] Step 4: According to the required solution volume, prepare NaOH and H with a mass fraction of 7%. 2 o 2 ...
Embodiment 3
[0048] Embodiment 3: Density at 46Kg / m 3 -55Kg / m 3 The unsoftened treatment of columnar loofah
[0049] Step 1: Same as Example 2.
[0050] Step 2: Same as Example 2.
[0051] Step 3: The columnar loofah raw material is aged in a constant temperature and humidity environment, the temperature is 20±2°C, the humidity is 65±2%, and the aging time is 48 hours to obtain natural unsoftened columnar loofah. The unsoftened columnar loofah stress-strain curve is as follows Figure 4 shown.
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