How to prevent carbonization of edges when laser engraving leather

When engraving leather with a laser, carbonization of the edges is a common problem.It shares tips on how to adjust the parameters, optimize the techniques, and choose the appropriate materials, to avoid burning or blackening the leather, and to ensure a clear and attractive result, suitable for both hobbyists and professionals.

Why did the edge of the leather turn to charcoal?

When laser beams are used to engrave leather, the high-temperature beam generates heat when it contacts the material.If the intensity is too high or the time too long, the leather will become carbonized, leaving a blackened edge.This not only affects the appearance of the leather, but may also damage the structure of the leather.Don't worry, the following practical tips will help you solve this problem with ease.

Adjusting the equipment parameters is the key.

Lower the power and the speed.

In most cases, carbonization is caused by too much power or too slow a carving speed.It is suggested that the test be first run at low power (10-20 %) and at high speed, gradually adjusting the values to find the most suitable.Different thicknesses of leather require different parameters, and thin leather is best done at low power.

Open the function for auxiliary blowing.

Many laser engravers have built-in air-blowing devices to blow away the smoke and debris produced by the laser, thus reducing heat buildup.If the machine doesn't have this function, you can use a small fan to assist in cooling.

Skill in operation is directly related to results.

First, try it out on a small piece of leather.

Before starting the actual carving, one must test the parameters using scrap material.He checks to see if the edges have turned black, and makes fine adjustments to the power and speed.Don't be put off by the trouble, it will save you a lot of material!

Keep the carving area clean.

Dust or oil on the surface of the leather will be carbonized by the heat.Before carving, wipe the surface with an alcohol-soaked cotton ball, and use a blow bulb to remove any loose particles. Wear gloves to avoid leaving fingerprints.

Preparation of the materials is also extremely important.

Choose light-colored vegetable-tanned leather.

The effect is even more dramatic on dark leather. Beginners are advised to practice on light-colored vegetable-tanned leather.The texture of this leather is even, and it takes on a natural color after carving.

Apply a protective film to reduce burning.

A transfer film or masking tape can be placed over the surface of the leather to protect it from direct contact with the laser.When the carving is complete, the paper is removed.

How can you remedy a case of mild carbonization?

If the edges have turned black, don't throw it out! Gently sand the carbonized parts with fine sandpaper, and then apply a layer of leather conditioner. Most of the time the damage can be repaired.It's also convenient to have an eraser handy to remove small areas of burn.

Remember that each machine and material is different, so you'll need to experiment a few times to find the combination that works best for you.With a little practice, you can create a piece of leatherwork with no flaws.