Method and line for the continuous stretching of hides and...

Details Method and line for the continuous stretching of hides and... Method and line for the continuous stretching of hides and...

2005-10-25

2005-10-25

Welch, Gary L. (Department: 3765)

Leather manufactures

Work stretcher or holder

Stretcher

Reexamination Certificate

active

06957553

ABSTRACT:
A method for the continuous wet stretching of industrial hides and other similar products comprises the following steps: a) removal of uniformly wetted hides following a treatment with liquids, such as tanning, re-tanning or the like, b) partial pre-drying of the wetted hides so as to reduce their residual relative moisture to a value of between 35% and 65%, c) stretching of the moist hides by means of localized mechanical stresses applied in directions which are substantially perpendicular to the plane of lie of the hides so as to achieve a predetermined increase in surface area, d) drying of the stretched hides until they have a residual relative moisture of between 7% and 30% so as to stabilize and thermally fix the stretched hides. The hides are kept in substantially constant relative humidity conditions with the mechanical stresses distributed uniformly over the entire surface area of the hides.

REFERENCES:
patent: 2834147 (1958-05-01), Durkee
patent: 4438570 (1984-03-01), Dokoupil
patent: 5291759 (1994-03-01), Dokoupil
patent: 6615621 (2003-09-01), Stupecky
patent: 6786067 (2004-09-01), Stupecky
patent: 1 222 619 (1966-08-01), None
patent: 39 15 042 (1990-11-01), None
patent: 0 368 233 (1998-10-01), None
patent: WO 00/68438 (2000-11-01), None

Affiliated with

Also associated with

Rating

Method and line for the continuous stretching of hides and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and line for the continuous stretching of hides and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and line for the continuous stretching of hides and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3472361