DE202008014232U1 - Device for scoring, cutting and drilling leather with laser beams of at least one laser - Google Patents

Abstract

Facility for scoring, cutting and drilling leather with laser beams at least a laser, characterized in that the laser is a laser with pulsed laser beams with a wavelength of less than 600 nm, so that clean and color-preserving as well as odorless processing edges arise.

Description

The The invention relates to devices for scoring, cutting and drilling of leather with laser beams of at least one laser.

leather As is known, it is also possible by the application of laser beams to be cut by a laser.

In the application of, for example, CO ₂ laser radiation but it creates a strong and unpleasant odor. At the same time the cutting edge becomes brittle. When using laser beams with a wavelength of 1064 nm also creates an unclean edge during processing.

Through the publication DE 10 2004 048 360 A1 (A method for reducing the odor emission in thermal processing of leather) is a method for processing leather by laser radiation is known, wherein the leather is irradiated during or after processing with light, preferably infrared and / or ultraviolet light. The light components are intended to energetically enrich the firing residues. Furthermore, it creates unstable ozone. A decay product is molecular oxygen, which is very reactive and a good oxidizer. The odor emission is thereby reduced.

Of the The protection claimed in claim 1 is based on the object Leather by means of laser beams of a laser simple and especially odorless to score, cut or drill.

These Task is with the features listed in the protection claim 1 solved.

The Equipment for scoring, cutting and drilling leather with laser beams At least one laser is characterized in particular by that the leather is easy and especially odorless editable.

To The leather is used for scribing, cutting or drilling with pulsed laser beams with a wavelength less than 600 nm of the laser applied, so that clean and color-preserving as well as odorless processing edges arise. The applied laser wavelength leads advantageously to a good absorption of the laser radiation in the leather. Furthermore, takes place by the short pulses a gentler Removal of the leather. This leads to a low production of aromatics, so that no annoying odor arises.

One Another advantage is that when scribing no embrittlement of the stagnant leather takes place, being on the front no cut contour appears.

advantageous Embodiments of the invention are in the claims 2 to 6 indicated.

The Leather is pulsed according to the embodiment of the protection claim 2 and either frequency doubled or frequency tripled laser beams a solid state laser is applied.

advantageously, The laser beams of the solid-state laser simulate this the development of the protection claim 3, a wavelength of 532 nm or 355 nm.

The Leather is according to the embodiment of the protection claim 4 advantageously subjected to pulsed laser beams of an excimer laser.

The Laser beams point to this after the development of the protection claim 5 has a wavelength of 351 nm, 308 nm or 248 nm.

The Pulse time of the pulsed laser beams is after the training of the protection claim 6 advantageously less than 200 ns.

One Embodiment of the invention will be closer in the following described.

To the Scoring, cutting or drilling leather with laser beams at least a laser becomes the leather with pulsed laser beams of one wavelength less than 600 nm applied, so that clean and color gentle as well Odorless processing edges arise. The used Pulse time is less than 200 ns.

In In a first embodiment, the leather is pulsed and either frequency doubled or frequency tripled Laser beams of a solid state laser acted upon. The Laser beams have a wavelength of 532 nm or 355 nm.

In In a second embodiment, the leather is pulsed Applied laser beams of an excimer laser. The laser beams have a wavelength of 351 nm, 308 nm or 248 nm up.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 102004048360 A1 [0004]

Claims (6)

Device for scribing, cutting and drilling leather with laser beams of at least one laser, characterized in that the laser is a laser with pulsed laser beams having a wavelength less than 600 nm, so that clean and color-preserving and odorless processing edges arise. Device according to protection claim 1, characterized that the laser is a solid state laser with pulsed as well either frequency doubled or frequency tripled laser beams is. Device according to protection claim 2, characterized that the laser beams of the solid-state laser one wavelength of 532 nm or 355 nm. Device according to protection claim 1, characterized that the laser is an excimer laser with pulsed laser beams. Device according to protection Claim 4, characterized that laser beams of the excimer laser have a wavelength of 351 nm, 308 nm or 248 nm. Device according to protection claim 1, characterized that the laser is a laser with pulsed laser beams with a pulse time is less than 200 ns.