Abstract This disclosure teaches a method and apparatus for compressively preshrinking two layers of high-shrinkage fabric simultaneously and for limiting post-processing loss of preshrinkage in either layer to a minimum. Two layers of fabric are drawn through preliminary finishing apparatus, such as a cloth spreader, then both layers are advanced together through a conditioning chamber and around a heated drum, preferably through a clip expander, and then together they are run through a rubber-belt compressivepreshrinkage unit. Thereafter the layers are separated and each is delivered to a separate woolen felt-belt dryer. Each of the layers, as it enters its respective felt-belt dryer, is passed around an input roller against which it is pressed by a heated shoe which performs a final compressive preshrinking function and the layers are dried completely so that preshrinkage effected theretofore in the layers is not altered due to stretching in a wet condition in subsequent handling.
Inventors
👤 George Fischer
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-31 07:11
CPC Classifications
D; D06; D06C; D06C21/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
223 words
A combination of apparati for preshrinking compressively simultaneously a plurality of smooth open-web layers of highshrinkage fabric comprising: means for bringing the layers together for continuous joint advancement, a conditioning chamber for dampening all of the jointly advancing layers together, a heated drum with means for passing the jointly advancing layers from the conditioning chamber over the heated drum, a clip expander with means for passing the jointly advancing layers from the heated drum through the clip expander, a rubber-belt compressive preshrinkage unit with means for passing the jointly advancing layers from the clip expander through the compressive preshrinkage unit, means for separating the layers after passage through the compressive preshrinkage unit, an endless felt belt dryer for each of the layers and each dryer provided with an input roller for receiving one of the layers and a heated endless felt belt for passage thereover so that preshrinkage of the layer is not altered thereafter by subsequent handling, each of the input rollers provided with a heated shoe arranged opposite the input roller for pressing the layer thereagainst as well as to further compressively preshrink, dry and polish the layer on its surface remote from the felt belt before entry of the layer into the dryer whereby the same or different fabrics can simultaneously be compressively preshrunk to the same or differing degrees.
Claim 2
Dependent Claim
223 words
A combination of apparati for preshrinking compressively simultaneously a plurality of smooth open-web layers of highshrinkage fabric comprising: means for bringing the layers together for continuous joint advancement, a conditioning chamber for dampening all of the jointly advancing layers together, a heated drum with means for passing the jointly advancing layers from the conditioning chamber over the heated drum, a clip expander with means for passing the jointly advancing layers from the heated drum through the clip expander, a rubber-belt compressive preshrinkage unit with means for passing the jointly advancing layers from the clip expander through the compressive preshrinkage unit, means for separating the layers after passage through the compressive preshrinkage unit, an endless felt belt dryer for each of the layers and each dryer provided with an input roller for receiving one of the layers and a heated endless felt belt for passage thereover so that preshrinkage of the layer is not altered thereafter by subsequent handling, each of the input rollers provided with a heated shoe arranged opposite the input roller for pressing the layer thereagainst as well as to further compressively preshrink, dry and polish the layer on its surface remote from the felt belt before entry of the layer into the dryer whereby the same or different fabrics can simultaneously be compressively preshrunk to the same or differing degrees.