A press cover has at least one polymer layer. The polymer layer includes, or is produced from, a polyurethane. The polyurethane has been formed from a prepolymer and a crosslinker. The prepolymer is a reaction product of phenylene 1,4-diisocyanate and at least one polyol. The crosslinker includes at least two components, namely, a first component having at least one diamine and a second component from the group of the carbonic esters.

A press cover has at least one polymer layer. The polymer layer includes, or is produced from, a polyurethane. The polyurethane has been formed from a prepolymer and a crosslinker. The prepolymer is a reaction product of phenylene 1,4-diisocyanate and at least one polyol. The crosslinker includes at least two components, namely, a first component having at least one diamine and a second component from the group of the carbonic esters.

A forming section, commonly called wet part, of a fourdrinier machine includes a rotatable breast roll, a rotatable couch roll, a forming mesh disposed between said breast roll and said couch roll, wherein said forming mesh is tangent to a lower portion of said couch roll, a fabric mesh which is tangent to said couch roll, wherein the tangent point of said fabric mesh and said couch roll coincides with or is located front of the tangent point of said forming net and said couch roll, wherein said fabric mesh and said forming net are attached to part of the outer surface of said couch roll in an inner and outer manner, a dewatering unit disposed on the rear surface of said forming mesh, a headbox disposed above said breast roll for flowing pulp slurry to said forming mesh and a press roll disposed against on said couch roll to form a pressing zone between said press roll and said couch roll so as to press and dewater said wet fiber web formed on said forming mesh on the surface of said fabric mesh.

A press cover or jacket includes at least one first polymer layer. The polymer layer contains or has been produced from a polyurethane, and the polyurethane has been formed from a prepolymer and a crosslinker. The prepolymer is a reaction product of naphthalene 1,5-diisocyanate or phenylene 1,4-diisocyanate and at least one polyol selected from a polycarbonate polyol, a polytetramethylene ether glycol, polyether polycarbonate polyol or mixtures thereof. A press using the press cover is also provided.

A press cover includes at least one polymer layer. The polymer layer contains or has been produced from a polyurethane. The polyurethane has been formed from a prepolymer and a crosslinker, and the prepolymer is a reaction product of phenylene 1,4-diisocyanate and at least one polyol containing caprolactone and carbonate, such as polycaprolactone polycarbonate polyol. A press roll, a shoe press and a method of using a press cover are also provided.

The invention relates to a press for a machine for producing a fibrous material web, including at least one press nip formed between a press roller and a counter press roller of the press for guiding through the fibrous material web in a dehydrating manner, and two band shaped covers, which are each guided by multiple guide rollers in continuous circulation, so as to run together through the press nip, so that the fibrous material web is guided through sandwiched between said covers, and then separated again at a separation point, in order to continue guiding the fibrous material web on the one cover and separate it from the other cover. One guide roller of the guide rollers arranged at the separation point is a suctioned guide roller of the one cover, to hold the fibrous material web on the one cover at the separation position.

The invention relates to a press for a machine for producing a fibrous material web, including at least one press nip formed between a press roller and a counter press roller of the press for guiding through the fibrous material web in a dehydrating manner, and two band shaped covers, which are each guided by multiple guide rollers in continuous circulation, so as to run together through the press nip, so that the fibrous material web is guided through sandwiched between said covers, and then separated again at a separation point, in order to continue guiding the fibrous material web on the one cover and separate it from the other cover. One guide roller of the guide rollers arranged at the separation point is a suctioned guide roller of the one cover, to hold the fibrous material web on the one cover at the separation position.

A machine for the production of a fibrous web, with a forming region, including a forming roll and a permeable inner belt which at least partially wraps around the forming roll together with an outer belt for formation of the fibrous web. A press device is immediately downstream from the forming region for additional dewatering of the fibrous web in a press nip and with a downstream drying cylinder. The fibrous web is carried supported on the inner belt from the forming region until the transfer to the heated surface of drying cylinder takes place. The inner belt is textured in order to provide texture to fibrous web and the transfer roll is a shoe roll in order to provide an extended transfer nip.

The present invention provides compositions comprising cellulose fibers and cellulose ester fibers and wet laid articles made from the compositions, as well as wet laid processes to produce these compositions. More specifically, the present invention provided compositions comprising cellulose fibers and cellulose acetate fibers and wet laid articles made from these compositions as well as wet laid processes to produce these compositions. The present invention also relates to developing a composition, process, wet laid product, or articles exhibiting any one of many desired benefits. Specifically, a wet laid process comprising a process that allows the quantity of water removed from a web passed through press rolls is increased relative to a web made from a 100% cellulose comparative composition or any composition without cellulose ester staple fibers co-refined with cellulose at the same press loading

The present invention provides compositions comprising cellulose fibers and cellulose ester fibers and wet laid articles made from the compositions, as well as wet laid processes to produce these compositions. More specifically, the present invention provided compositions comprising cellulose fibers and cellulose acetate fibers and wet laid articles made from these compositions as well as wet laid processes to produce these compositions. The present invention also relates to developing a composition, process, wet laid product, or articles exhibiting any one of many desired benefits. Specifically, a wet laid process comprising a process that allows the quantity of water removed from a web passed through press rolls is increased relative to a web made from a 100% cellulose comparative composition or any composition without cellulose ester staple fibers co-refined with cellulose at the same press loading