Brush, method of forming a brush, and structure embodied in a machine readable medium used in a design process

Abstract

Embodiments described herein generally relate to a brush, a method of forming a brush, and a structure embodied in a machine readable medium used in a design process are provided. The brush includes a body and a channel configured to deliver a cleaning liquid through holes in the body. The method forms the brush using 3D printing. The structure provides details for making the brush. The disclosure herein allows a method of forming a brush that does not require the removal of active porogen.

1 . A method of forming a brush, comprising:
 forming a body of the brush using a three-dimensional (3D) printing process, the body comprising a first solid material comprising a plurality of body holes, the plurality of body holes having a first body region, wherein a first body porosity of the first body region is greater than about 70%; and   forming a channel in the body of the brush using a 3D printing process, the channel fluidly coupled to the plurality of body holes.   
     
     
         2 . The method of  claim 1 , wherein the 3D printing process comprises:
 exposing a surface of a printing liquid to treatment emission, such that at least a portion of the printing liquid is converted to a solid material; and   raising a support member coupled to the solid material while a time-varying treatment emission is applied to the surface.   
     
     
         3 . The method of  claim 2 , wherein
 the plurality of body holes has a second body region, and   a second body porosity of the second body region is greater than the first body porosity.   
     
     
         4 . The method of  claim 3 , wherein
 the first solid material has a third body region,   a third body porosity of the third body region is greater than the first body porosity, and   the third body porosity is less than the second body porosity.   
     
     
         5 . The method of  claim 2 , wherein the time-varying treatment emission comprises ultraviolet (UV) light. 
     
     
         6 . The method of  claim 2 , wherein the printing liquid comprises a photopolymer. 
     
     
         7 . The method of  claim 2 , further comprising forming a plurality of brushing elements disposed on the body using a 3D printing process, each of the brushing elements comprising the first solid material comprising a plurality of element holes, the plurality of element holes having a first element region, wherein a first element porosity of the first element region is greater than about 70%. 
     
     
         8 . The method of  claim 7 , wherein the channel is fluidly coupled to the plurality of element holes. 
     
     
         9 . The method of  claim 1 , wherein the first body region comprises a random distribution of pores. 
     
     
         10 . The method of  claim 9 , wherein the random distribution of holes is at least partially created by waves at the surface of the printing liquid. 
     
     
         11 . A method of forming a brush, comprising:
 forming a body of the brush using a three-dimensional (3D) printing process, and   forming a plurality of brushing elements disposed on the body using the 3D printing process, wherein   the body comprises a first solid material comprising a plurality of body holes, the plurality of body holes having a first body region, wherein a first body porosity of the first body region varies radially outward from an element centerline of each brushing element; and   forming a channel in the body of the brush using a 3D printing process, the channel fluidly coupled to the plurality of body holes.   
     
     
         12 . The method of  claim 11 , wherein the 3D printing process comprises:
 exposing a surface of a printing liquid to treatment emission, such that at least a portion of the printing liquid is converted to a solid material; and   raising a support member coupled to the solid material while a time-varying treatment emission is applied to the surface.   
     
     
         13 . The method of  claim 11 , wherein each of the brushing elements comprises the first solid material. 
     
     
         14 . The method of  claim 13 , wherein the brushing elements comprise a plurality of element holes having a first element region, wherein a first element porosity of the first element region is greater than 70%, and the channel is fluidly coupled to the plurality of element holes. 
     
     
         15 . The method of  claim 11 , wherein the body is a cylindrical body having an outer circumferential surface and an inner circumferential surface, wherein the inner circumferential surface forms the channel. 
     
     
         16 . A method of forming a brush, comprising:
 forming a brush body comprising an outer surface and an inner surface using a three-dimensional (3D) printing process, the body comprising a first polymer material comprising a plurality of body holes, the plurality of body holes having a first body region and a second body region,
 wherein a porosity of the first body region is greater than about 70%, and 
 wherein a porosity of the second body region is greater than the first body porosity; and 
   forming a channel in the brush body that is fluidly coupled to the plurality of body holes.   
     
     
         17 . The method of  claim 16 , wherein the 3D printing process comprises:
 exposing a surface of a printing liquid to treatment emission, such that at least a portion of the printing liquid is converted to a solid material; and   raising a support member coupled to the solid material while a time-varying UV treatment emission is applied to the surface.   
     
     
         18 . The method of  claim 16 , further comprising forming a plurality of brushing elements disposed on the body using the 3D printing process, each of the brushing elements comprising the first solid material. 
     
     
         19 . The method of  claim 16 , wherein the body is a cylindrical body having an outer circumferential surface and an inner circumferential surface, wherein the inner circumferential surface forms the channel. 
     
     
         20 . The method of  claim 16 , wherein the first body region comprises a random distribution of pores.