Process of making a multi-ply fibrous water soluble product

Patent metadata

Field	Value
Publication number	US-10683618-B2
Application number	US-201815881156-A
Country	US
Kind code	B2
Filing date	Jan 26, 2018
Priority date	Jan 26, 2018
Publication date	Jun 16, 2020
Grant date	Jun 16, 2020

Abstract

A process for manufacturing a water soluble product including the steps of: providing a water soluble fibrous parent continuous ply web, the parent continuous ply web extending in the cross direction between an operator edge and drive edge; cutting the parent continuous ply web in the machine direction to provide a first continuous ply web that includes the drive edge and a second continuous ply web that includes the operator edge; superposing the first continuous ply web and the second continuous ply web to form a web stack so that the operator edge and the drive edge are on opposite sides of a centerline of the web stack in the machine direction; and cutting and joining portions of the web stack to form the water soluble product.

First claim

What is claimed is:

1. A process for manufacturing a water soluble product comprising the steps of:
providing a water soluble fibrous parent continuous ply web, said parent continuous ply web having a machine direction and cross direction orthogonal to said machine direction and a thickness in a direction orthogonal to a plane defined by said machine direction and said cross direction, wherein said parent continuous ply web extends in said cross direction between an operator edge and drive edge wherein said parent continuous ply web is thicker between said operator edge and said drive edge than at said drive edge and said operator edge;
cutting said parent continuous ply web in said machine direction to provide a first continuous ply web that includes said drive edge and a second continuous ply web that includes said operator edge;
cutting from said parent continuous ply web in said machine direction a third continuous ply web between said first continuous ply web and said second continuous ply web in said cross direction;
superposing said first continuous ply web and said second continuous ply web to form a web stack so that said operator edge and said drive edge are on opposite sides of a centerline of said web stack in said machine direction;
superposing said third continuous ply web with said first continuous ply web and said second continuous ply web to form said web stack;
positioning said second continuous ply web between said first continuous ply web and said third continuous ply web in said web stack, or positioning said first continuous ply web between said second continuous ply web and said third continuous ply web in said web stack; and
cutting and joining portions of said web stack to form said water soluble product;
wherein the step of joining portions of said web stack is done before or after cutting portions of said web stack;
wherein said first continuous ply web has a first continuous ply web belt side and an opposing first continuous ply web air side, said second continuous ply web has a second continuous ply web belt side and an opposing second continuous ply web air side, and said third continuous ply web has a third continuous ply web belt side and an opposing third continuous ply web air side; and
wherein said web stack has an upper facing surface and an opposing lower facing surface;
said process further comprising the step of positioning said first continuous ply web, said second continuous ply web, and said third continuous ply web so that said upper facing surface and said lower facing surface are selected from the group consisting of said first continuous ply web belt side, said second continuous ply web belt side, and said third continuous ply web belt side and said upper facing surface is not the same as said lower facing surface.

2. The process according to claim 1 , further comprising the step of applying between said upper facing surface and said lower facing surface an active agent selected from the group consisting of unencapsulated perfume, encapsulated perfume, perfume premix, surfactant, enzyme, bleach, bleach activator, chelant, structurant, builder, organic polymeric compound, brightener, hueing agent, suds suppressor, conditioning agent, humectant, alkalinity system, pH control system, buffer alkanolamine, insect repellant, hair care agent, hair conditioning agent, skin care agent, sunscreen agent, skin conditioning agent, fabric softener, anti-wrinkling agent, anti-static agent, fabric care stain removal agent, soil release agent, dispersing agent, suds suppressing agent, suds boosting agent, anti-foam agent, fabric refreshing agent, dishwashing agent, hard surface care agent, antimicrobial agent, antibacterial agent, antifungal agent, bleach activating agent, chelating agent, builder, lotion, air care agent, carpet care agent, dye transfer-inhibiting agent, clay soil removing agent, anti-redeposition agent, polymeric soil release agent, polymeric dispersing agent, alkoxylated polyamine polymer, alkoxylated polycarboxylate polymer, amphilic graft copolymer, dissolution aid, buffering system, water-softening agent, water-hardening agent, pH adjusting agent, flocculating agent, effervescent agent, preservative, cosmetic agent, make-up removal agent, lathering agent, deposition aid agent, coacervate-forming agent, clay, thickening agent, latex, silica, drying agent, odor control agent, antiperspirant agent, cooling agent, warming agent, absorbent gel agent, anti-inflammatory agent, dye, hueing agent, pigment, acid, base, liquid treatment active agent, agricultural active agent, industrial active agent, ingestible active agent, medicinal agent, sleep aid, teeth whitening agent, tooth care agent, mouthwash agent, periodontal gum care agent, dietary agent, vitamin, minerals, water-treatment agent, water clarifying agent, water disinfecting agent, and mixtures thereof.

3. The process according to claim 2 , further comprising the step of providing said parent continuous ply web with a plurality of water soluble particles.

4. The process according to claim 3 , further comprising the step of:
providing a fibrous first layer;
providing a fibrous second layer facing said first layer, said first layer and said second layer together at least partially forming said parent continuous ply web.

5. The process according to claim 4 , further comprising the step of:
providing said water soluble particles in said fibrous second layer.

6. The process according to claim 5 , wherein said first continuous ply web belt side, said second continuous ply web belt side, and said third continuous ply web belt side comprise said first layer.

7. The process according to claim 1 , further comprising the step of applying between said second continuous ply web and said first continuous ply web an active agent selected from the group consisting of unencapsulated perfume, encapsulated perfume, perfume premix, surfactant, enzyme, bleach, bleach activator, chelant, structurant, builder, organic polymeric compound, brightener, hueing agent, suds suppressor, conditioning agent, humectant, alkalinity system, pH control system, buffer alkanolamine, insect repellant, hair care agent, hair conditioning agent, skin care agent, sunscreen agent, skin conditioning agent, fabric softener, anti-wrinkling agent, anti-static agent, fabric care stain removal agent, soil release agent, dispersing agent, suds suppressing agent, suds boosting agent, anti-foam agent, fabric refreshing agent, dishwashing agent, hard surface care agent, antimicrobial agent, antibacterial agent, antifungal agent, bleach activating agent, chelating agent, builder, lotion, air care agent, carpet care agent, dye transfer-inhibiting agent, clay soil removing agent, anti-redeposition agent, polymeric soil release agent, polymeric dispersing agent, alkoxylated polyamine polymer, alkoxylated polycarboxylate polymer, amphilic graft copolymer, dissolution aid, buffering system, water-softening agent, water-hardening agent, pH adjusting agent, flocculating agent, effervescent agent, preservative, cosmetic agent, make-up removal agent, lathering agent, deposition aid agent, coacervate-forming agent, clay, thickening agent, latex, silica, drying agent, odor control agent, antiperspirant agent, cooling agent, warming agent, absorbent gel agent, anti-inflammatory agent, dye, hueing agent, pigment, acid, base, liquid treatment active agent, agricultural active agent, industrial active agent, ingestible active agent, medicinal agent, sleep aid, teeth whitening agent, tooth care agent, mouthwash agent, periodontal gum care agent, dietary agent, vitamin, minerals, water-treatment agent, water clarifying agent, water disinfecting agent, and mixtures thereof.

8. The process according to claim 7 , further comprising t

Assignees

• Procter & Gamble

Inventors

• Pratt Michael Sean
• Reed Anthony Edward
• Glassmeyer Stephen Robert
• Sivik Mark Robert
• Nyangiro Dinah Achola

Classifications

• D21H27/32 Primary

  with materials applied between the sheets (attaching together paper or cardboard sheets B31F5/00; adhesives C09J) · CPC title

• D21H27/30

  Multi-ply (for surface covering D21H27/18; making on paper-making machines D21F9/00, D21F11/00) · CPC title

• D06H7/04 Primary

  longitudinally (D06H7/14 takes precedence) · CPC title

• B32B2555/00

  Personal care · CPC title

• B32B38/145

  Printing · CPC title