Processes for manufacturing personal-care applicator

Patent metadata

Field	Value
Publication number	US-10874202-B2
Application number	US-201514752763-A
Country	US
Kind code	B2
Filing date	Jun 26, 2015
Priority date	Jun 26, 2014
Publication date	Dec 29, 2020
Grant date	Dec 29, 2020

Abstract

A personal-care applicator comprises at least one stem having a proximal end including a handle and a distal end opposite to the proximal end and at least one bristled component attached to the stem, wherein the bristled component comprises a carrier and a plurality of bristles ultrasonically welded to the carrier and outwardly extending therefrom according to a pre-determined pattern, wherein the elongated carrier and the at least first plurality of bristles comprise ultrasonically compatible materials, and wherein the bristles are ultrasonically bonded to the carrier through a direct ultrasonic bond between a surface of the carrier and a lengthwise portion of each of the bristles. Process comprises providing at least one elongated stem having a proximal end and a distal end, providing the at least one bristled component, and attaching the at least one bristled component to the at least first stem.

First claim

We claim:

1. A process for manufacturing a personal-care applicator, the process comprising:
providing at least a first elongated stem having a proximal end and a distal end, wherein the first elongated stem has an angled cut proximate the distal end;
manufacturing at least a first bristled component comprising:
an elongated carrier having a longitudinal axis and a length, wherein the carrier has at least one longitudinal slot disposed along at least a portion of the length of the carrier, and
at least a first plurality of bristles ultrasonically welded directly to the carrier and outwardly extending therefrom according to a first pre-determined pattern, wherein the carrier and the bristles comprise ultrasonically compatible materials, and wherein the bristles are ultrasonically bonded to the carrier through a direct ultrasonic bond between at least one interior surface of the at least one longitudinal slot of the carrier and a lengthwise portion of each of the bristles;

wherein manufacturing the at least first bristled component comprises:
continuously wrapping at least a first strand of material around a continuously moving endless band having a top side, a backside, and at least a first edge therebetween, thereby causing the at least first strand of material to come into contact with the at least first edge of the band at a predetermined density;
continuously juxtaposing at least a first support strip with the first edge of the band having the first strand of material wrapped around the first edge, the first strand of material and the first support strip comprising ultrasonically compatible materials;
ultrasonically welding lengthwise portions of the first strand of material adjacent to the first edge to the first support strip at the predetermined density and such that said lengthwise portions of the first strand of material become ultrasonically bonded to the first support strip through a direct ultrasonic bond between a surface of the first support strip and surfaces of said lengthwise portions of the first strand of material, thereby forming at least a first continuous bristled strip comprising the first support strip and a plurality of first-strand filaments ultrasonically welded to the first strip and outwardly extending therefrom;
removing the at least first continuous bristled strip from the endless band;
cutting the at least first continuous bristled strip into a plurality of bristled components; and
modifying at least one physical characteristic of the first strand of material;

attaching the at least first bristled component to the at least first stem, such that the carrier extends from the distal end of the stem; and
cutting the stem to provide an angle to the personal-care applicator proximate the distal end.

2. The process of claim 1 , wherein providing the at least first elongated stem comprises manufacturing an elongated stem from a plastic material using a technique selected from the group consisting of molding, stamping, 3D printing, milling, extrusion, pultrusion, and any combination thereof.

3. The process of claim 1 , further comprising splitting the first strand of material to form a plurality of free ends thereof.

4. The process of claim 1 , wherein modifying the at least one physical characteristic of the first strand of material comprises subjecting the first strand of material to a treatment selected from the group consisting of trimming, coating, temperature treatment, chemical treatment, radiation treatment, mechanical treatment, modification of surface energy, change of shape, change of color, and change of angular orientation.

5. The process of claim 1 , further comprising modifying the first support strip.

6. The process of claim 5 , wherein modifying the first support strip comprises subjecting the first support strip to a treatment selected from the group consisting of trimming, coating, temperature treatment, chemical treatment, radiation treatment, modification of surface energy, change of shape, and change of color.

7. The process of claim 1 , wherein the step of continuously wrapping the at least first strand of material around a continuously moving endless band is conducted at the predetermined density that varies.

8. The process of claim 1 , wherein continuously juxtaposing at least a first support strip with the at least first edge of the band comprises continuously juxtaposing a second support strip with a second edge of the band, the second edge being opposite to the first edge.

9. The process of claim 1 , wherein continuously wrapping at least a first strand of material around a continuously moving endless band comprises continuously wrapping at least a second strand of material around the continuously moving endless band.

10. The process of claim 9 , wherein the first strand of material differs from the second strand of material in at least one physical characteristic selected from the group consisting of material, thickness, cross-sectional shape, surface energy, elasticity, rigidity, and color.

11. The process of claim 9 , wherein continuously wrapping at least a first strand of material around a continuously moving endless band comprises continuously wrapping the at least first strand of material around the band at a first density and continuously wrapping the at least second strand of material around the band at a second density, the first density being different from the second density.

12. The process of claim 9 , wherein the first strand of material and the second strand of material mutually alternate at the at least first edge of the band.

13. The process of claim 1 , wherein continuously wrapping at least a first strand of material around a continuously moving endless band comprises causing the first strand of material to wrap around the band to comprise a pattern wherein portions of the first strand of material disposed on the top side of the band form acute angles relative to a direction in which the band is traveling.

14. The process of claim 9 , wherein continuously wrapping at least a first strand of material around a continuously moving endless band comprises causing the first strand of material to wrap around the band to comprise a pattern wherein portions of the at least first strand of material disposed on the top side of the band form a first angle relative to a direction in which the band is traveling, and causing the second strand of material to wrap around the band to comprise a pattern wherein portions of the at least second strand of material disposed on the top side of the band form a second angle relative to the direction in which the band is traveling, and wherein the first angle is different from the second angle.

15. The process of claim 1 , wherein continuously juxtaposing at least a first support strip with the at least first edge of the band comprises continuously juxtaposing the first support strip that has a cross-sectional shape selected from the group consisting of round, rectangular, triangular, polygon, elliptical, substantially flat, solid, hollow, and irregular shapes, and any combination thereof.

16. The process of claim 1 , wherein continuously juxtaposing at least a first support strip with the at least first edge of the band comprises continuously juxtaposing the first support strip that has at least one band slot configured to receive the at least first edge therein.

17. The process of claim 15 , wherein the at least one band slot is generally V-shaped as viewed in the cross-section perpendicular to longitudinal axis of the elongated carrier, the band slot having a first inner surface an

Assignees

• Procter & Gamble
• Noxell Corp

Inventors

• Wilson David Edward
• Guay Gordon Gerald
• Sabino Michael Christopher
• Loughney David M
• Chanthabandith Akira
• Clemons Todd M

Classifications

• A46B7/044

  Sliding connections for bristle carriers · CPC title

• A46B5/0054

  designed to allow relative positioning of the head to body · CPC title

• A46B5/0033

  bending or stretching or collapsing (A46B7/023 takes precedence) · CPC title

• A46B3/18

  the bristles being fixed on or between belts or wires · CPC title

• A46B9/028

  Bristle profile, the end of the bristle defining a surface other than a single plane or deviating from a simple geometric form, e.g. cylinder, sphere or cone · CPC title