Mesophyll will rot when it meets corrosive liquid. It will rot faster when heated. Veins are tough and not easy to corrode. So some plant leaves with hard leaves and tough veins can be made into veins bookmarks.

Tool materials: beaker, tripod, asbestos net, alcohol lamp, match, balance, old toothbrush, tweezers, watercolor pigment, colored silk thread, sodium hydroxide, 3% hydrogen peroxide and osmanthus leaves.

Production process:

1. Pour about 100 ml of water into a beaker, add 4 g of sodium hydroxide to the water, put the beaker on an asbestos net, heat it with an alcohol lamp, and boil the solution.

2. Immerse the plant leaves in the solution, continue to heat for about 15 minutes, and gently stir with tweezers to separate the mesophyll and corrode evenly.

3. When the leaves change color and the mesophyll is brittle, take out the leaves with tweezers and put them in a glass filled with clear water.

4. Take the leaves out of the clear water and put them on the glass. Gently brush the front and back of the leaves with an old toothbrush in running water to brush off the soft parts of the leaves, revealing white veins. Soak the leaves in 3% hydrogen peroxide for 24 hours to make them pure white, then take out the leaves, wash them with clear water and drain the water droplets.

5. Put the vein in an old book or newspaper and press it dry.

6. Take out the flattened vein piece, and when the vein is dry, apply watercolor paint on both sides of the vein with a brush, and flatten it after it is slightly dry.

7. Take out the vein slice coated with pigment and tie a colored silk thread on its petiole to get a delicate and beautiful veins bookmarks.

Description and extension:

1. Besides osmanthus leaves, veins bookmarks can also be made of coral leaves.

2. When heating, the beaker must be placed on the asbestos net. If heated directly, the beaker will break due to uneven heating.

3. The used liquid medicine can be stored in an empty container for next use. General liquid medicine can be recycled for 4-5 times.

4. If there are too many processed leaves, you can change a big beaker and mix water and sodium hydroxide according to the ratio of 100:8.

Another way:

Veins bookmarks chose beautiful leaves, removed mesophyll by chemical treatment, and kept them.

Whole vein, bookmarked by dyeing. Making veins bookmarks can be used as laid-off workers and rural prosperity.

A way for labor to make money.

Production method:

1, select the blade. Choose leaves with thick veins. Generally evergreen woody plants are better. Ru Gui

Mosaic, heather leaves, papaya leaves, eucalyptus leaves, tea leaves, etc. At the end of summer, when the leaves are fully mature and begin to age.

Or choose leaves in autumn.

2. Boil the leaves with lye. Configuration of lye: calculated by 1 liter of water, 70g of sodium carbonate (baking soda) and hydroxyl oxide.

50 grams of sodium chloride (the above two drugs and chemicals are available in stores), and lime water can also be used as an enamel cup instead of lye or

Boil the prepared lye in a casserole, then add some washed leaves, boil and gently stir the leaves with chopsticks.

, to prevent the blade from being compressed, so that it is heated evenly. Cook for about 5 minutes. When the leaves turn black, take out a leaf.

Son, put it in a plastic basin filled with clear water. Check the corrosion and easy peeling of mesophyll, and remove it if it is easy to separate.

Take out all the leaves, put them in a plastic basin filled with clear water, and then separate the mesophyll from the veins one by one.

3. Remove the mesophyll. Put the boiled leaves on the palm of your hand or a glass plate and smooth them with an old toothbrush handle.

Gently rub the leaves to wipe off the corroded mesophyll, then rinse under the faucet and continue rubbing.

Until the mesophyll is completely removed.

4. Bleach blood vessels. Bleaching the brushed veins in bleaching powder solution, taking them out and washing them with clear water.

Sandwiched in old books and newspapers, it can be taken out after draining, and it can be used as a veins bookmarks.

5. Dye, draw and write. Dye your favorite color with red or blue ink or other dyes.

You can draw and write on it, and finally tie a silk thread.