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

Active Publication Date: 2016-07-27
ANHUI AGRICULTURAL UNIVERSITY
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AI Technical Summary

Problems solved by technology

At the same time, because loofah has good hygroscopicity, moisture dissipation, air permeability, thermal stability, etc., it also has good antibacterial property after treatment, and has certain medicinal value. "Compendium of Materia Medica" records the medicinal properties of loofah Dry and cold, it can dispel wind and activate blood circulation, dredge collaterals and relieve pain, and has the effects of lowering blood fat, preventing ischemic myocardial injury, analgesic and anti-inflammation. There have been cases of using loofah to make pillows, insoles and mattresses, but this loofah Mattresses are generally made of loofah into fiber material and then filled, destroying the natural space network structure of loofah
CN104970620A discloses a columnar loofah mattress, which mainly uses low density (density less than 30kg / m 3 ) soft loofah as filling material, but this kind of loofah is less planted in the country, and the output of loofah is lower, which cannot meet the needs of mass production of mattresses
[0003] At present, softening methods such as alkali treatment, alkali-urea treatment, alkylation modification treatment, and formaldehyde-free fiber crosslinking treatment can only be used for the separated loofah fiber. For columnar loofah, due to its inner surface and core The layer is the main support structure of the loofah in the longitudinal direction. The loofah fiber in this part has a thicker single fiber and contains more "cuticle". It is difficult to achieve the purpose of softening by the above softening treatment method. Obtain a "columnar loofah small spring" with good elasticity, which cannot meet the purpose of being used for mattress filling

Method used

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  • Softening treatment method of columnar loofah sponge
  • Softening treatment method of columnar loofah sponge
  • Softening treatment method of columnar loofah sponge

Examples

Experimental program
Comparison scheme
Effect test

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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Abstract

The invention provides a softening treatment method of a columnar loofah sponge. The method comprises the following steps of: firstly, cutting the columnar loofah sponge with the size of 3cm-5cm and measuring the density; carrying out hot pressing and compression treatment on the cut columnar loofah sponge; then treating the columnar loofah sponge subjected to the hot pressing treatment with an alkali and hydrogen peroxide mixed solution, wherein an alkali is sodium hydroxide and the content of sodium hydroxide is 5%-10%, the content of hydrogen peroxide is 5%-10%, the temperature of the solution is 70-90 DEG C and the immersing time is 40min-1.5h; and finally, carrying out water washing and constant-temperature and constant-humidity treatment to finally obtain the softened columnar loofah sponge. By virtue of the method provided by the invention, the aim that fibers of an outer surface layer, an inner surface layer and a core layer of the columnar loofah sponge can be subjected to the softening treatment very well can be realized; meanwhile, the elasticity in the longitudinal direction of the columnar loofah sponge is relatively good, so that the aim of filling a mattress can be met very well; and meanwhile, the columnar loofah sponge subjected to the softening treatment of the method can meet the requirements of use comfort of the mattress, prevention of yellowing and the like very well.

Description

technical field [0001] The invention relates to a method for softening loofah, in particular to a softening method for high-density, columnar loofah used as mattress filling materials. Background technique [0002] Mattresses currently on the market mainly include sponge mattresses, latex mattresses, spring mattresses, palm mattresses, etc. Among them, the raw materials of natural latex mattresses are limited, while the raw materials of synthetic latex mattresses and sponge mattresses are petrochemical products. , is a non-renewable resource, and latex mattresses and sponge mattresses have poor air permeability and moisture dissipation. After a long time of use, they are prone to mildew or the breeding of bacteria and other microorganisms, which is not conducive to human health. The spring mattress has better air permeability, but the spring bed core must use soft filling materials such as sponge and latex as the bedding layer to disperse the body's gravity. Therefore, expl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/38D06M11/50D06M13/432D06M13/188D06M11/56D01B1/50D06M101/04
CPCD01B1/50D06M11/38D06M11/50D06M11/56D06M13/188D06M13/432D06M2101/04D06M2200/50
Inventor 陈玉霞张凯婷朱诗留郭勇苏娜刘盛全
Owner ANHUI AGRICULTURAL UNIVERSITY
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