JPH1121764A - Application of extract from burned ash of oil palm bark - Google Patents

Abstract

PROBLEM TO BE SOLVED: To impart antimicrobial activity, non-electroconductive property and, hand and feel to fibers without polluting the environment by processing the fibers using materials extracted from firing ash of trunks, etc., of oil palm as a fiber-processing alkali agent. SOLUTION: Fibers are processed by using materials extracted from firing ash generated by burning trunks and barks of oil palm (Elaeis guineensis) as a fiber-processing alkali agent. Further, it is preferable that the extract from firing ash of oil palm barks and a silver compound (silver nitrate) are subjected to a heat processing which is carried out in a single bath together with fibers to deposit metallic silver in the fibers.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method in which burned ash of oil palm vegetated in the natural world is used as a main raw material, and components extracted from the ash are effectively recycled. Further, the present invention is used for processing a fabric fiber, and a modification process of a fiber material with a natural substance is performed safely.

[0002]

2. Description of the Related Art Typical examples of conventional fiber modification include processing in a water bath with a strong alkaline substance mainly composed of caustic soda and improvement of fiber surface texture with various synthetic resin-based substances. The processing method using a strong alkali substance poses problems in danger at the time of operation and generation of high-concentration alkaline waste liquid after the treatment. Further, there is a possibility that an adverse effect such as the residual alkaline substance in the fabric fiber after the processing may occur. In processing with various synthetic resin-based materials, it is necessary to prepare a working environment including processing equipment, and general-purpose processing is difficult. So the safety of the work environment,
Waste liquid treatment after processing, safety of processed fabric fibers, and versatility of processing are strongly desired.

[0003]

Means for Solving the Problems The present inventor has conducted studies to solve the above problems, and as a result, has completed a novel processing method described below.

[0004] The present invention is directed to the development of a fiber processing agent made from a substance extracted from the stem and bark ash of a natural plant called oil palm (oil palm), a property modification of a fabric fiber, and a metal on a fiber surface. This is the development of a processing method called silver formation.

Hereinafter, details of the present invention will be described.

The present invention relates to a technique for purifying a substance obtained by heating and extracting a fired ash by an aqueous system using an oil palm (oil palm) trunk and bark burned material as raw materials, and using it as a fiber processing agent.

[0007] A technology that enables a metal silver film to be formed on the surface of a fabric fiber by heating the fiber processing agent comprising the extract and silver nitrate together with the fabric fiber in a water bath.

When a polyester, rayon, cotton, or nylon fiber is modified in a water bath by using a fiber processing agent based on an extract from calcined ash and a modifier with a surfactant, the initial pH of the agent is adjusted. The value indicates strong alkali, but P after treatment
The H value has shifted to neutral and does not require a neutralization treatment of the waste liquid.

In the case where silver nitrate is used as metallic silver to form a film into fabric fibers in a water bath using a fiber processing agent based on an extract from calcined ash and a surfactant and a modifier, a residual silver remains in the waste liquid. There is no.

[0010] The extract concentration from the calcined ash of the present invention can be arbitrarily set in the extraction and purification steps.

[0011]

Embodiment 1 The method of preparing an extract of oil palm trunk and bark burnt ash involves immersing burnt ash in water at an arbitrary ratio. Heating circulation 90
Perform for 2 hours or more at ℃ or more. Purification and filtration of the treatment liquid are repeated to remove suspended matters to obtain an extract. Standard adjustment: 200 parts of water (tap water, softened water) for 100 parts of oil palm trunk and bark ash.

[0012]

Example 2 Silver processing method Adjustment of processing agent Adjustment of silver aqueous solution 5 to 10 watts of silver nitrate
It is adjusted to et% (the used water is purified water or pure water).
Adjustment of potassium chromate indicator Potassium chromate is adjusted to a 10 wet% aqueous solution (purified water or pure water is used). Method Water (use water with low chlorine content) 7 per fiber weight
Add 15 to 15 times, and add the extract material at a rate of 5 to 50 g / L based on the total amount of water.
et%. After a certain period of time after circulating heating, a part (about 50 cc) of the processing liquid is taken out, and a few drops of an aqueous potassium chromate indicator are added to determine the degree of silver remaining in the processing liquid. If silver remains, the processing solution becomes reddish brown, and it can be determined whether the processing time is prolonged, the amount of the chemical added is appropriate, and the formation of metallic silver on the fiber is poor. If an aqueous solution of potassium chromate is added to the treatment liquid and the color is exactly the same as the color of the indicator, it can be determined that metallic silver has been completely formed on the fiber. Regarding the processing temperature and time, the dyeing temperature of each fiber is set to the maximum temperature, and even when the processing is performed at a temperature lower than that, metallic silver is formed on the fiber. This reaction is considered to be caused by the reaction of the aqueous solution of silver nitrate with the alkali of the extracted substance to form silver oxide, and further, the metallic silver was formed into a film on the fiber by the reducing action.

[0013]

Example 3 The texture of the fiber surface is improved by treating the extract of the oil palm fired ash and the fiber with a liquid jet dyeing machine. Water is added at a rate of 7 to 15 times the weight of the fiber, and the extract is added at a rate of 1 to 10% by weight and heated by circulation. The temperature and time are shown below depending on the type of the treated fiber. Polyester 135 ° C or less 60 minutes Cotton 120 ° C or less 60 minutes, Rayon 120 ° C or less 60
And nylon for less than 110 ° C for 60 minutes. For blended fibers, the allowable temperature of the fiber is limited. The surface of the fiber treated by this method is soft and texture-modified without deterioration of the fiber.

[0014]

Embodiment 4 Oil palm fired ash is pulverized by a pulverizer into fine particles. The powder (or extracted substance), the surfactant, and carboxymethyl cellulose are mixed to form a paste, printed on fibers, and dried at 180 ° C. for 1 minute. Wash the solids on the fibers with hot water. At this time, 1 g of nonionic surfactant
/ L and alkaline agent (sodium carbonate or caustic soda)
The effect is improved by adding 0.5 g / L and washing at a temperature of about 70 ° C. As an example of the above-mentioned composition, 30 to 50 parts of fine particle fired ash (or extract), 5 to 10 parts of activator, 10 parts of carboxymethyl cellulose and 20 to 30 parts of water are used to adjust the viscosity with carboxymethyl cellulose. Similar results can be obtained by using a glue such as sodium alginate or a thickener as a substitute for carboxymethyl cellulose. Fiber modification is seen only in the part printed on the fiber, and the texture is changed (shading).

Table 1 shows the components and properties of the purified product extracted from the calcined ash.

[Table 1] Ingredients Potassium oxide 37, 15%,
Silica 26, 14%, Magnesium oxide 5, 04
%, Calcium oxide 3, 90%, phosphorus oxide 3, 21
%, Aluminum oxide 0, 47%, iron oxide 0.4
6%, sodium oxide 0,09%, titanium oxide
0,05%, appearance: brown liquid, odor: wood odor, hydrogen ion concentration: 11,8 (1% aqueous solution), environment-related value of extract (1% aqueous extract) COD value 83m
g / L, BOD value 120mg / L

To confirm the results of the formation of metallic silver, qualitative analysis (fluorescent X-ray qualitative analysis), X-ray diffraction measurement, and an electron microscope confirmed clear results.

In order to confirm the result of metal silver formation, an antibacterial halo test was performed, and a clear halo result was confirmed. No processing 0.00 mm Silver nitrate processing 2,000 mm Halo test measurement conditions Sample: Unprocessed and silver nitrate processing cloth, test bacterium: Staphylococcus aure
usIF012732, Test method: JIS I1902
Applicable, culture medium: normal agar medium (PH 7.0 autoclave sterilization), test piece: 30 mm diameter circular (sterilized with ultraviolet light for 30 minutes), cells: 1 ml per 150 ml 24
Time culture, culture: 37 ° C, 24-48 hours culture

[0018]

According to the present invention, as described above, a safe, clear and simple processing method is developed, and a result effective in fiber processing technology is produced.

Claims (7)

[Claims] 1. A fiber processing method in which a substance extracted from baked ash generated by baking oil palm (oil palm) trunks and bark is used as an alkali agent for fiber processing. 2. A processing method for forming metallic silver in a fiber by subjecting an extract of calcined oil palm bark ash and a silver compound (silver nitrate) to heating treatment in the same bath as the fiber, and use of the processed product. 3. A method for improving the texture of the fiber surface and treating the fiber surface by treating the extract of the oil palm bark burnt ash and the fiber in the same bath. 4. A fiber processing agent comprising an extract of calcined ash alone. 5. A fiber processing agent formed by blending an extract from calcined ash with a surfactant. 6. A method for processing a metal silver forming fiber utilizing silver nitrate in a water bath in which caustic soda, caustic potassium and sodium carbonate are substituted. 7. Antibacterial performance obtained by the processing method,
Effects related to non-conductive performance and fiber texture modifying ability.