Abstract: An antimicrobially active, non-woven web, a wet wiper containing the web, and a method of making the web. The method includes the steps of forming an unbonded fibrous web; applying throughout the unbonded fibrous web an uncured polymeric binder; applying a leachable catalyst to catalyze the cross-linking of the binder during curing, the leachable catalyst being antimicrobial; and curing the binder to cross-link the binder and bind the fibers together to form an antimicrobially active, non-woven web.

Abstract: A wet wiper product of the type having a fibrous wipe, a liquid preservative composition, and an enclosure for the fibrous wipe and the liquid preservative composition. The liquid preservative composition consists essentially of: (a) a mixture of citric acid and sorbic acid as the preservative component; (b) water; and (c) optional ingredients selected from the group consisting of skin moisturizers and fragrance compounds.

Abstract: A coated ink jet printing substrate where said coating utilizes an insolubilized hydrophilic polymer.

Abstract: A method of making a quilted cloth-like composite laminate is produced. The method includes the steps of inserting a scrim coated with a thermoplastic binder between two nonwoven layers each of the nonwoven layers being formed of three-dimensional cellulosic fibers bound with a latex adhesive; heating the scrim and the two nonwoven layers to a temperature sufficient to activate the thermoplastic binder while maintaining unequal tension on the scrim and the two nonwoven layers; and pressing the scrim and the two nonwoven layers together to form a quilted cloth-like composite laminate having the nonwoven layers of cellulosic fibers adhered to opposite sides of the scrim. The surface of each nonwoven layer is quilted and interrupted by the scrim.

Abstract: A method of forming a container from a flat, substantially homogeneous blank of fibrous substrate, comprising the steps of shaping the blank into a formed container having a bottom wall, an up-turned side wall extending from the bottom wall, a rim outwardly extending from the side wall and a lip downwardly curving from the rim and including a plurality of radially-extending, circumferentially-spaced pleats formed in the side wall, rim, and lip, each pleat including at least three layers of the blank; and applying sufficient heat and pressure to the side wall and rim to decrease the thickness thereof to less than that of the blank and to transform each pleat into a substantially integrated fibrous structure in which the constituent layers generally lack individual identity, each structure having a density greater than and a thickness substantially equal to adjacent areas of the side wall and rim.

Abstract: A partially-oxidized spent pulping liquor is produced which is added to unoxidized strong spent pulping liquor prior, during, or subsequent to concentration to form a novel partially-oxidized, concentrated, high total solids spent pulping liquor. This novel, partially-oxidized, concentrated spent liquor is capable of being combusted in a spent liquor recovery furnace without the addition of auxiliary heating fuel with a resultant increase in the effective capacity of that furnace.

Abstract: An antimicrobially active, non-woven web, a wet wiper containing the web, and a method of making the web. The method includes the steps of forming an unbonded fibrous web; applying throughout the unbonded fibrous web an uncured binder and an antimicrobial agent, the antimicrobial active agent being substantive to the fibers of the web and to the binder; and curing the binder material to bind the fibers together to form an antimicrobially active, non-woven web. A preferred antimicrobial agent is an organo-silicon quaternary ammonium salt, especially a 3-(trimethoxylsilyl) propyldidecylmethyl ammonium chloride or a 3-(trimethoxysilyl) proplyloctadecyldimethyl ammonium chloride.

Abstract: A dryer for paper and similar fibrous web materials including a dryer roll having an outer cylindrically-shaped wall, a radiant heat source within the dryer roll adapted to heat the wall substantially uniformly about the entire periphery thereof, and nip-forming means forming a pressure nip with the dryer roll.

Abstract: A system of treating web material wherein the web is transported within a differential relative velocity nip defined by a web support surface and a pick-up member having voids, therein and having a relative velocity differing from that of the support surface at the nip location. Substantially simultaneously with the web treatment the web is applied to the pick-up member with the web impressed into the voids to lock the web against movement relative to the pick-up member.

Abstract: A food package assembly is disclosed for use in heating food in a microwave oven having a support surface wherein the assembly includes a packaging such as a paperboard carton having a detachable panel arranged to (1) form an opening for removal of the food contained in the carton and (2) to leave strengthening portion, such as corner webs, for strengthening the remaining side walls when the opened carton is inverted for use as a cooking stand for the removed food. A microwave interactive material may be applied to the inner side of the removable panel so that the removed panel may be placed on top of the inverted carton to brown the food during the cooking step.

Abstract: Non-aqueous solvents are removed from a web material, e.g., paper, by contacting the material with a condensable, heat transfer vapor, e.g. saturated steam, in countercurrent fashion. The heat transfer vapor is employed in the process in amounts of at least 50% by weight of the solvent to be removed. The process allows effective and efficient total removal and recovery of the solvent without damage to the web material. The condensable heat transfer vapor, as well as being the source of energy for evaporating the solvent, acts as a solvent vapor carrier. Condensation of the mixture in a recovery apparatus, e.g., condenser or still, allows easy recovery of the solvent.

Abstract: Provided is a novel locomotive oil filter for use in locomotive applications. The filter is comprised of a pulp which is comprised of lignin-containing fibers derived from a fiber source having a lignin content of at least about 10% by thermomechanically pulping a fiber source under temperature/pressure conditions of 300.degree. F.-350.degree. F./50 psig-120 psig and a refiner energy utilization of about 8-35 HPD/ADT. The locomotive oil filter comprising the pulp of such lignin-containing fibers overcomes the severe problems of filter swelling and plugging due to water in the locomotive oil, while also providing one with improved filtration capacity and good filtration. The use of such lignin-containing fiber pulp also gives one the economic advantage of substitution for the more expensive cotton linter generally used heretofore in railroad/locomotive lube oil filters. The pulp of lignin-containing fibers can be used in combination with other suitable pulps, e.g.

Abstract: Reclosable carton structure of a generally rectangular configuration is set up from a paperboard blank. A hooded cover is hingedly mounted over the open top of the carton and includes a serrated cutter bar extending along a free edge of the cover. A flap on the blank is folded to extend over and is adhered along its free edge to the inside of the carton wall underlying the portion of the hooded cover that includes the cutter bar. A tab is formed in the same carton wall by a knife cut main portion parallel to the fold of the flap and a pair of end portions each extending transversely of and from an end of the main portion, both end portions terminating between the fold and the adhered edge. Resilience of the paperboard, in combination with cooperative dispositions of the flap and the tab, causes the tab to be pivotally urged outwardly from the surface of the wall, pivotation occurring when the hooded cover is open.

Abstract: A disposable food receptacle for use in microwave cooking is disclosed which includes a provision to brown the exterior of the food in the receptacle. A thin layer of an electrically conductive material, such as an elemental metal is incorporated into the receptacle on the food contacting surfaces thereof, so that the conductive layer will become heated by the microwave radiation and will, in turn, brown the exterior of the food in the receptacle. The conductive layer is formed as an extremely thin film deposited on a substrate protective layer by a process of a vacuum vapor deposition.

Abstract: A method of making a flat cloth-like composite laminate is produced. The method includes the steps of inserting a scrim coated with a thermoplastic binder between two nonwoven layers each of the nonwoven layers being formed of three-dimensional cellulosic fibers bound with a latex adhesive; heating the scrim and the two nonwoven layers to a temperature sufficient to activate the thermoplastic binder while maintaining equal tension on the scrim and the two nonwoven layers; and pressing the scrim and the two nonwoven layers together to form a flat cloth-like composite laminate having the nonwoven layers of cellulosic fibers adhered to opposite sides of the scrim. The surface of each nonwoven layer is planar and interrupted by the scrim.

Abstract: A method of making a cloth-like composite laminate is provided. The method includes the steps of air laying a continuous layer of three-dimensional cellulosic fibers one side of a layer of nonwoven material; applying to the continuous layer of three-dimensional cellulosic fibers and the nonwoven material layer a latex adhesive containing a wetting agent; and drying the latex adhesive and wetting agent to bind the layer of cellulosic fibers to the nonwoven material layer to form a cloth-like composite laminate having a continuous layer of three-dimensional cellulosic fibers bound to one side of the nonwoven material layer.

Abstract: A method of making a cloth-like composite laminate is provided. The method includes: inserting a scrim coated with a thermoplastic binder between two nonwoven layers, each of the nonwoven layers being formed of cellulosic fibers bound with a latex adhesive and heating the scrim and the two nonwoven layers to a temperature sufficient to activate the thermoplastic binder, the heating being performed without pressing the scrim and the nonwoven layers together so as to form a cloth-like composite laminate having a nonwoven layer of cellulosic fibers continuously bound to opposite sides of the scrim. The surface of each nonwoven layer is planar and uninterrupted by the scrim. The nonwoven layer is initially formed by forming two separate layers of three-dimensional cellulosic fibers, applying to each layer of three-dimensional cellulosic fibers a latex adhesive; and drying the latex adhesive to form two separate nonwoven layers of cellulosic fibers.

Abstract: An apparatus for depositing a uniform web of dry fibers on a foraminous wire moving at speeds greater than 500 feet per minute including offset suction and air deflecting means within a fiber distributor for imparting a horizontal velocity component to the deposited fibers in the direction of the moving wire, also a method for depositing a uniform web of dry fibers onto a moving foraminous wire including imparting a horizontal velocity component to fibers deposited onto the wire in the direction of the wire by inducing a pressure gradient and baffling the air flow within a fiber distributor.

Abstract: A container (2) including a paperboard carton (4) for uniformly heating and crisping the top crust of a large food product such as a pot pie having no side and bottom crusts in a microwave oven including a top panel (9) having crisping means (10) separated by a vertical distance of less than 2.7 centimeters from the top surface of the food product. The crisping means (10) consists of a microwave interactive layer for converting microwave energy received on the inner and outer surfaces of the layer into radiant heat for browning and crisping the top surface of the food product. Crisping means (10) also reflects heat radiated by the top surface of the food product back onto that surface for additional browning and crisping. Uniformity of heating is provided by partially shielding the food product during its exposure to microwave energy, thereby also preventing overheating, loss of mass and changes in texture.