Menu English Ukrainian russian Home

Free technical library for hobbyists and professionals Free technical library


FACTORY TECHNOLOGIES AT HOME - SIMPLE RECIPES
Free library / Directory / Factory technology at home - simple recipes

Compositions for removing written in ink. Simple recipes and tips

Factory technologies - simple recipes

Directory / Factory technology at home - simple recipes

Comments on the article Comments on the article

Here are the recipes compositions for removing ink.

1st recipe

  • Oxalic acid 10 g;
  • Citric acid 10 g;
  • Water 100 cm3,

What is written is moistened with this solution with a soft brush 2-3 times, then moistened with clean water using a brush and the etched area is dried with liner paper.

2st recipe:

Prepare two solutions.

1st solution:

  • Potassium chloride 10 g;
  • Potassium chloride salt 10 g;
  • Salt 10 g;
  • Water 50 g.

2st solution:

  • Hydrochloric acid 10 g;
  • Table salt 10 g;
  • Water 30 g.

The etched area is lubricated with the first solution, dried, then lubricated with the second solution. Wash with water and dry with an iron through passing paper.

Composition for developing etched spots of ink writing

Etched areas can be restored chemically. For this purpose, the writing surface is lubricated with one of the following compounds, after which the etched font stands out clearly on the paper.

  • Copper sulfate 3 g;
  • Water 10 g;
  • ammonia 5 g;
  • Water 10 g;
  • Chromium potassium salt 10 g;
  • Water 100 g;
  • Iron vitriol 50 g;
  • Water 200 g.

Composition for the destruction of ink stains

1st solution:

  • Citric acid 25 g;
  • Borax 50 g;
  • Water 500 g.

2st solution:

  • Calcium chloride 50 g;
  • Borax 25 g;
  • Water 500 g.

Moisten the stain with the first solution, dry it with pass-through paper, apply the second solution, then apply the first solution again and dry with pass-through paper.

Author: Korolev V.A.

We recommend interesting articles Section Factory technology at home - simple recipes:

▪ Iron drilling

▪ Restoring faded ink on parchment

▪ Obtaining resin esters

See other articles Section Factory technology at home - simple recipes.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

Artificial leather for touch emulation 15.04.2024

In a modern technology world where distance is becoming increasingly commonplace, maintaining connection and a sense of closeness is important. Recent developments in artificial skin by German scientists from Saarland University represent a new era in virtual interactions. German researchers from Saarland University have developed ultra-thin films that can transmit the sensation of touch over a distance. This cutting-edge technology provides new opportunities for virtual communication, especially for those who find themselves far from their loved ones. The ultra-thin films developed by the researchers, just 50 micrometers thick, can be integrated into textiles and worn like a second skin. These films act as sensors that recognize tactile signals from mom or dad, and as actuators that transmit these movements to the baby. Parents' touch to the fabric activates sensors that react to pressure and deform the ultra-thin film. This ... >>

Petgugu Global cat litter 15.04.2024

Taking care of pets can often be a challenge, especially when it comes to keeping your home clean. A new interesting solution from the Petgugu Global startup has been presented, which will make life easier for cat owners and help them keep their home perfectly clean and tidy. Startup Petgugu Global has unveiled a unique cat toilet that can automatically flush feces, keeping your home clean and fresh. This innovative device is equipped with various smart sensors that monitor your pet's toilet activity and activate to automatically clean after use. The device connects to the sewer system and ensures efficient waste removal without the need for intervention from the owner. Additionally, the toilet has a large flushable storage capacity, making it ideal for multi-cat households. The Petgugu cat litter bowl is designed for use with water-soluble litters and offers a range of additional ... >>

The attractiveness of caring men 14.04.2024

The stereotype that women prefer "bad boys" has long been widespread. However, recent research conducted by British scientists from Monash University offers a new perspective on this issue. They looked at how women responded to men's emotional responsibility and willingness to help others. The study's findings could change our understanding of what makes men attractive to women. A study conducted by scientists from Monash University leads to new findings about men's attractiveness to women. In the experiment, women were shown photographs of men with brief stories about their behavior in various situations, including their reaction to an encounter with a homeless person. Some of the men ignored the homeless man, while others helped him, such as buying him food. A study found that men who showed empathy and kindness were more attractive to women compared to men who showed empathy and kindness. ... >>

Random news from the Archive

Sports that extend life 04.12.2016

An international team of researchers led by Emmanuel Stamatakis, Associate Professor at the University of Sydney, has analyzed a large body of medical data to find out which sports do and do not extend life.

Scientists used data from 80,3 thousand people over 30 from England and Scotland. The analysis showed that the risk of death for people who regularly played various types of tennis was lower by as much as 47%. For swimmers, this figure was 28%, for aerobics it was 27%, and for cyclists it was 15%.

At the same time, the chances of dying specifically from cardiovascular disease in tennis players were lower by 56%, in swimmers - by 41%, and in people involved in aerobics - by 36%.

There was no association between football/rugby and running/walking activities and time of death.

Other interesting news:

▪ Things bring joy

▪ Caterpillars can eat plastic waste

▪ Resurrection of the heart after death

▪ TDA8939TH - class D digital amplifier

▪ Immunity saves tattoos

News feed of science and technology, new electronics

 

Interesting materials of the Free Technical Library:

▪ section of the site for the Builder, home craftsman. Selection of articles

▪ article Like an apple blush. Popular expression

▪ article Why did telephone operators in San Francisco Chinatown have phenomenal memories? Detailed answer

▪ article Primula officinalis. Legends, cultivation, methods of application

▪ article Single-ended driver for a transformerless amplifier (Circlotron). Encyclopedia of radio electronics and electrical engineering

▪ article Power Amplifier Webr. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:

Name:


Email (optional):


A comment:





All languages ​​of this page

Home page | Library | Articles | Website map | Site Reviews

www.diagram.com.ua

www.diagram.com.ua
2000-2024