Abstract: Premoistened wipers are provided with wet strength through the use of colloidal sulfate esters of cellulose having a high degree of sulfate substitution, equal to or greater than 2.5. When such wipers are immersed in water, they become easily dispersible and hence flushable.

Abstract: Bleed-fast, dyed cellulosics particularly absorbent papers have been obtained with a particular class of water-soluble, cationic dyes reacted with a water-soluble dialdehyde, preferably glyoxal or glutaraldehyde. An aqueous printing fluid containing the water-soluble cationic dye and the dialdehyde, upon drying, produces a water-resistant dyestuff having improved bleed fastness upon cellulosic fibers.

Abstract: Water soluble wet strength resins containing maleamic acid and at least one other ethylenically unsaturated monomer, such as vinyl esters, olefins, acrylic and/or methyacrylic acids and/or their esters and/or their amindes are useful in the preparation of paper products having improved, off-machine dry strength and wet strength properties.

Abstract: Heat activated, fabric conditioning products are made by impregnating a thick, absorbent substrate with fabric-conditioner chemicals. Such products are designed for use at elevated temperatures encountered in laundry dryers. This invention provides an improved process for making such products and an apparatus for applying liquids to the substrate. Previously a doctor blade was used in combination with a roller to limit the volume of liquid being applied to the substrate during compression of the substrate in a nip. The present invention concerns a thin wire drawn under tension which can function as the doctor to obtain a smooth thin film of liquid on the lower roller of the nip used for applying the liquid to the substrate.

Abstract: Fibrous web adapted for wiping purposes bonded with a rubber latex and impregnated with a cleaning lotion containing zinc chloride.

Abstract: Apparatus for curing a bonded, air-permeable web. The apparatus includes drying means (16-26, 42, 48, 54, 56 and 80) for passing heated air at a predetermined temperature through the web 10 for a predetermined time. Means (128, 132, 134, 136, 150, 160, 164 and 166) are provided for generating a first signal representing the pressure drop, at a predetermined velocity, across the web 10 outside of the drying means (16-26, 42, 48, 54, 56 and 80). Means (68, 108 and 110) are also provided for generating a second signal representing the pressure drop across the web (10) inside the drying means (16-26, 42, 48, 54, 56 and 80). Means (120) responsive to the first and second generated signals control the velocity of the heated air passing through the web so as to maintain the pressure drop across the web 10 inside the drying means (16-26, 42, 48, 54, 56 and 80) equal to the pressure drop as measured by the means (128, 132, 134, 136, 150, 160, 164 and 166) for generating the first signal.

Abstract: Pre-moistened wiper comprising a nonwoven web impregnated with a modified guar gum and wet with an aqueous lotion containing borate ions.

Abstract: Bleed-fast, dyed cellulosics particularly absorbent papers have been obtained with a particular class of water-soluble, cationic dyes reacted with a water-soluble dialdehyde, preferably glyoxal or glutaraldehyde. An aqueous printing fluid containing the water-soluble cationic dye and the dialdehyde, upon drying, produces a water-resistant dyestuff having improved bleed fastness upon cellulosic fibers.

Abstract: A method for developing electrostatic images on a sheet of electro-photographic material by means of a perforate development electrode and liquid toner, without immersing the material in a bath of toner. The method comprises spraying liquid toner against pressure reducing means adjacent to the electrode to reduce and make uniform the pressure of the flowing liquid toner and flowing the liquid toner uniformly over and through the perforate development electrode and over the image side of the sheet without contacting the side opposite the image side with the toner.

Abstract: Bleed-fast, dyed cellulosics particularly absorbent papers have been obtained with a particular class of water-soluble, cationic dyes reacted with a water-soluble aldehyde, preferably formaldehyde, glyoxal or glutaraldehyde. An aqueous printing fluid containing the water-soluble cationic dye and the aldehyde, upon drying, produces a water-resistant dyestuff having improved bleed fastness upon cellulosic fibers.

Abstract: Disclosed is a unitary or integral laminate-like fibrous web having a first and second surface region and a central core region which has less fiber concentration than the first surface region. The first surface region has a surface disposition of bonding material disposed only in that region to form a strong, abrasion-resistant surface. The central core region has a penetrating disposition of bonding material extending through that region in a fine, spaced-apart pattern occupying less area in the plane of the web than the surface bonding material in the first surface region. The penetrating bonding material in the central core region penetrates entirely through that region and connects the first and second surface regions together by penetrating to at least within a fiber thickness of the web surface to provide abrasion-resistance for that surface region.

Abstract: The method of autogenously bonding a nonwoven web formed predominantly of thermoplastic fibers is characterized by the steps of directing heat into the web from only one surface thereof to preheat the web, and then directing the preheated web through a bonding nip formed between opposed rolls, one of said rolls being hotter than the other roll, being capable of heating the web surface it engages to a temperature above the melt point of the thermoplastic fibers and being positioned to engage the surface of the web opposite the one into which heat was directed during the preheating operation; said webs being preheated by means completely independent of the opposed rolls that form the bonding nip, and most preferably by infrared panels. The nonwoven product formed in accordance with this method also forms a part of the instant invention.

Abstract: A pan-type lighting fixture for mounting in association with an outlet box (3) in a ceiling is characterized by a heat-dissipating base (12) having a generally vertical sidewall section (18) and a generally horizontal planar wall (24) intermediate opposed ends (20 & 22) of the sidewall section. The horizontal wall divides the base into upper and lower compartments (26 & 28) and sockets (31) for receiving incandescent lamps are secured through mounting means (30) to the lower surface of the intermediate wall (24). A layer of insulating material (14) is disposed in the lower compartment of the base, and a layer of insulating material (15) is disposed in the upper compartment of the base. A mounting stud (13) includes a heat-insulating threaded plastic stem (38) passing through a central opening (39) in the horizontal wall of the base for connection with a threaded opening (40) associated with the outlet box. The lighting fixture complies with the UL temperature limit of 60.degree. C.

Abstract: An apparatus for testing the permeability of porous web materials. The porous web 12 is placed against a surface of a test head 10 of the apparatus. The test head 10 contains at least one aperture 28 and a vacuum source 87 connected to the test head 10 causes air to be drawn through the web 12 and then through the aperture 28. The test head 10 also includes at least one static port 32 that communicates with the aperture 28. The static port 32 is located very close to the web 12 and measures the static pressure within the aperture 28 before it leaves the aperture 28. A pressure transducer 46 is connected to the static port 32 and provides a measurement of the pressure drop across the web 12. If the volumetric flow rate of air through the web 12 is kept constant, the pressure transducer 46 output 52 is representative of the permeability of the web 12.

Abstract: Disclosed is a release coating provided by a coating composition having an acrylic functional component which has been polymerized by electron beam radiation. In a preferred embodiment the coating composition does not contain polysiloxane. In another preferred embodiment some of the acrylic functional component has one acrylic group per molecule and some has three or more acrylic groups per molecule before polymerization.

Abstract: A three component adhesive is used for a nonwoven web in combination with a water based lotion containing borate ions. The adhesively bonded web has substantial tensile strength while saturated with the lotion for extended periods of time (e.g., months) and is water dispersible when exposed to a large volume of water. The three component adhesive system provides the tensile strength for the web during prolonged exposure to the water based lotion even under extreme temperature conditions. The components of the adhesive composition applied to the web are polyvinyl alcohol, a non-self-cross-linking, thermosetting, polymer emulsion and a self-cross-linking thermosetting polymer emulsion. An organic acid capable of complexing with borate, such as .alpha.-hydroxy acids or o-aromatic hydroxy acids, when in combination with borate ions in the lotion produces a synergistic effect upon the PVA adhesive in the web.