CN111775250A

CN111775250A - Bleaching method for improving turquoise degree of grass turfgrass of rabbit

Info

Publication number: CN111775250A
Application number: CN202010526202.5A
Authority: CN
Inventors: 黄齐林; 曾艳萍; 金瑞雪; 潘静; 林洪; 李明; 谢建新; 王泉; 鲁广秋; 谭博文; 卞明菁; 谢昀川
Original assignee: Yuxi Normal University
Current assignee: Yuxi Normal University
Priority date: 2020-06-09
Filing date: 2020-06-09
Publication date: 2020-10-16

Abstract

The invention discloses a bleaching method for improving the turquoise degree of glasswort herb, and belongs to the technical field of preparation of dried flower bleaching. Randomly selecting rabbit tail grass, soaking the rabbit tail grass in a mixed solution of sodium chlorite and concentrated hydrochloric acid, heating the rabbit tail grass to 40-60 ℃ in a water bath, and soaking for 2.8-3.2 hours; cleaning the rabbit hair grass with water, then soaking the rabbit hair grass in a hydrogen peroxide solution, heating the rabbit hair grass to 40-60 ℃ in a water bath, and soaking for 1.8-2.2 h; cleaning, and quickly drying with hot air to obtain the rabbit-tail grass. The glasswort prepared by the method disclosed by the invention is good in loose degree and uniform in color, and hair does not fall off in the bleaching process.

Description

Bleaching method for improving turquoise degree of grass turfgrass of rabbit

Technical Field

The invention relates to a bleaching method for improving the turquoise degree of glasswort herb, and belongs to the technical field of dried flower bleaching.

Background

The production of dried flowers is a novel process technology which is popular at home and abroad in recent years. The finished product is prepared by using real plants as materials and carrying out bleaching, dyeing, drying, processing and finishing. To a certain extent, not only the original natural postures and charms of plant leaves, flowers, stems, fruits and the like are kept, but also the plant leaves, flowers, stems, fruits and the like can be preserved and decorated for a long time, and the plant leaves, flowers, stems, fruits and the like are suitable for being matched with various materials.

Leptoradix Lepidii belongs to annual herbaceous plant, has panicle, egg shape, softness, more spikelets, white flower, golden stamen, and open from early summer to autumn. The rabbit-tail grass is very beautiful, can be directly sold or processed into dry flowers, can be used for installing courtyards, is rich in the interest of garden amorous feelings, and has garden ornamental value.

However, the bleaching process of the rabbit-tail grass is different from that of other dried flowers, the rabbit-tail grass has softer hair, if the rabbit-tail grass is directly bleached by the conventional dried flower bleaching process, the bleaching degree is not enough in the manufacturing process, the bonding problem is serious, the hair is easy to fall off, and the manufacturing period is too long, so that the manufacturing time is serious, the yield is low and the stability is poor.

Disclosure of Invention

The invention aims to provide a bleaching method for improving the turquoise degree of grass turfgrass, which specifically comprises the following steps:

(1) randomly selecting rabbit tail grass, soaking the rabbit tail grass in a mixed solution of sodium chlorite and concentrated hydrochloric acid, heating the rabbit tail grass to 40-60 ℃ in a water bath, and soaking for 2.8-3.2 hours;

(2) cleaning the rabbit hair grass obtained in the step (1) with water, then soaking the rabbit hair grass in a hydrogen peroxide solution, and heating the rabbit hair grass to 40-60 ℃ in a water bath; the soaking time is 1.8-2.2 h;

(3) and (3) cleaning the rabbit-tail grass obtained in the step (2) with water, and quickly drying the rabbit-tail grass with hot air to obtain the rabbit-tail grass.

Preferably, the concentration of the sodium chlorite solution in the step (1) is 18-22 g/L, and concentrated hydrochloric acid is added to adjust the pH value of the soaking solution to 2-3.

Preferably, the concentration of the hydrogen peroxide solution is 90-110 ml/L, wherein the mass percentage concentration of the added hydrogen peroxide is 30%.

The invention has the beneficial effects that:

(1) compared with the prior art, the bleaching effect is improved to a great extent, and the problems of hair falling, bonding of writing points and the like are solved. Meanwhile, the manufacturing period is greatly shortened, the reproducibility and the stability are better, and the production efficiency of the product is improved. The invention has the advantages of convenient operation, simple equipment, small required space, low cost and high benefit. The product is nontoxic and tasteless, has high safety, is completely bleached, and is convenient for dyeing and process manufacturing.

(2) According to the method, the mixed solution of sodium chlorite and concentrated hydrochloric acid is used for soaking, so that the color of the finally obtained rabbit-tail grass is uniform, and the rabbit-tail grass is quickly dried by hot air and heated in a water bath without hair falling and adhesion.

Drawings

FIG. 1 is a photograph of Rabbit-tailed grass obtained in example 1 and comparative example 1;

FIG. 2 is a photograph of Rabbit-tailed grass obtained in example 2 and comparative example 2;

FIG. 3 is a photograph of Rabbit-tailed grass obtained in example 3 and comparative example 3.

Detailed Description

The present invention is further described in detail with reference to the following specific examples, but the scope of the present invention is not limited to the above description.

Example 1

A bleaching method for improving the turquoise degree of grass turfgrass comprises the following steps:

(1) randomly selecting rabbit tail grass, soaking the rabbit tail grass in a mixed solution of sodium chlorite and concentrated hydrochloric acid, heating the rabbit tail grass in a water bath to 53 ℃, and soaking for 3 hours; the sodium chlorite solution was prepared as follows: 8g of sodium chlorite solid is dissolved in 400ml of water, and concentrated hydrochloric acid is added to adjust the pH value of the solution to 2.3.

(2) Cleaning the rabbit hair grass obtained in the step (1) with water, then soaking the rabbit hair grass in a hydrogen peroxide solution, and heating the rabbit hair grass to 53 ℃ in a water bath; the soaking time is 2 h; preparing a hydrogen peroxide solution: 40ml of hydrogen peroxide (30% by mass) was added to 400ml of water L, wherein the concentration of hydrogen peroxide added was 30% by mass.

(3) And (3) cleaning the rabbit-tail grass obtained in the step (2) with water, and quickly drying the rabbit-tail grass with hot air to obtain the rabbit-tail grass, wherein the obtained rabbit-tail grass is as shown in a figure 1(A), and the obtained rabbit-tail grass is fluffy and soft.

Comparative example 1

The other conditions were the same as in example 1 except that: hydrochloric acid is not added in the step (1), and water bath heating is not used. Heating is not carried out in the step (2); the drying mode in step (3) is a mode of placing in the shade for natural air drying, and the obtained Rabdosia Rubescens (Hemsl.) Hara is shown in figure 1 (B). The air-dried rabbit hair weeds are fluffy and soft (A) compared with the rabbit hair weeds obtained in the example 1, and the whole bonding phenomenon (B) appears in the naturally air-dried rabbit hair weeds. As can be seen from fig. 1: the preparation method of the rabbit-tail grass is different from the preparation method of common dried flowers, the effect difference of the finished product is large, and the preparation method is related to a drying method, heating temperature and the like; the effect of selecting high-power hot air to blow quickly is better than that of natural air drying.

Example 2

(1) Randomly selecting rabbit tail grass, soaking the rabbit tail grass in a mixed solution of sodium chlorite and concentrated hydrochloric acid, heating the rabbit tail grass in a water bath to 40 ℃, and soaking for 2.8 hours; the sodium chlorite solution was prepared as follows: 8.5g of sodium chlorite solid is dissolved in 400ml of water, and concentrated hydrochloric acid is added to adjust the pH value of the solution to 2.

(2) Cleaning the rabbit hair grass obtained in the step (1) with water, then putting the rabbit hair grass into a hydrogen peroxide solution for soaking, and heating the rabbit hair grass to 40 ℃ in a water bath; the soaking time is 1.8 h; preparing a hydrogen peroxide solution: 44ml of hydrogen peroxide (30% by mass) was added to 400ml of water L, wherein the concentration of hydrogen peroxide added was 30% by mass.

(3) And (3) cleaning the rabbit-tail grass obtained in the step (2) with water, and quickly drying the rabbit-tail grass with hot air to obtain the rabbit-tail grass, wherein the obtained rabbit-tail grass is as shown in a figure 2(A), and the obtained rabbit-tail grass is fluffy and soft.

Comparative example 2

The other conditions were the same as in example 1 except that: the soaking time in the step (1) is 4 hours, the soaking time in the step (1) is 3 hours, and the obtained rabbit-tail grass is shown in figure 2 (B). Compared with the comparative example 2, the soaking time also influences the quality of the rabbit-tail grass, and the rabbit-tail grass obtained in the example 2 is fluffy and soft and has uniform color.

Example 3

(1) Randomly selecting rabbit tail grass, soaking the rabbit tail grass in a mixed solution of sodium chlorite and concentrated hydrochloric acid, heating the rabbit tail grass in a water bath to 60 ℃, and soaking for 3.2 hours; the sodium chlorite solution was prepared as follows: 7.2g of sodium chlorite solid was dissolved in 400ml of water, and concentrated hydrochloric acid was added to adjust the pH of the solution to 3.

(2) Cleaning the rabbit hair grass obtained in the step (1) with water, then putting the rabbit hair grass into a hydrogen peroxide solution for soaking, and heating the rabbit hair grass to 60 ℃ in a water bath; the soaking time is 2.2 h; preparing a hydrogen peroxide solution: 36ml of hydrogen peroxide (30% by mass) was added to 400ml of water L, wherein the concentration of hydrogen peroxide added was 30% by mass.

Comparative example 3

The other conditions were the same as in example 3, except that: the addition amount of sodium chlorite is different, 10g of sodium chlorite is dissolved in 400ml of water, a little yellowing phenomenon can be seen when more than 10g of sodium chlorite is added, excessive chlorine gas generated due to over high acidity is adsorbed on the rabbit-tail grass, and the rabbit-tail grass still has heavy bad smell after being dried by air and is harmful to human bodies.

Claims

1. A bleaching method for improving the turquoise degree of grass turfgrass is characterized by comprising the following steps:

(2) cleaning the rabbit hair grass obtained in the step (1) with water, then putting the rabbit hair grass into a hydrogen peroxide solution for soaking, and heating the rabbit hair grass to 40-60 ℃ in a water bath; the soaking time is 1.8 h-2.2 h;

2. The bleaching method for improving the fluffy degree of grass carpel according to claim 1, characterized in that: the concentration of the sodium chlorite solution in the step (1) is 18 g/L-22 g/L, and concentrated hydrochloric acid is added to adjust the pH value of the soaking solution to be 2-3.

3. The bleaching method for improving the fluffy degree of grass carpel according to claim 1, characterized in that: wherein the concentration of the hydrogen peroxide solution is 90 ml/L-110 ml/L, and the mass percentage concentration of the added hydrogen peroxide is 30%.