EP4171841A1

EP4171841A1 - Dual dispensing nozzle and method of using the same

Info

Publication number: EP4171841A1
Application number: EP21742962.0A
Authority: EP
Inventors: Dirk Schröder
Original assignee: Nordson Corp
Current assignee: Nordson Corp
Priority date: 2020-06-24
Filing date: 2021-06-21
Publication date: 2023-05-03
Also published as: WO2021262580A1

Abstract

A nozzle for a dispensing system includes a plurality of fluid inlets, a fluid outlet, an air inlet, and an air outlet. A first fluid inlet receives a first adhesive and is in fluid communication with a first fluid channel, and a second fluid inlet receives a second adhesive and is in fluid communication with a second fluid channel. The fluid outlet is in fluid communication with the first fluid channel along a first side of the fluid outlet and in fluid communication with the second fluid channel along a second side of the fluid outlet. The air inlet receives a stream of air and is in fluid communication with an air channel. The air outlet is positioned proximate the fluid outlet and is configured to direct the stream of air toward the first and second adhesives as they are dispensed from the fluid outlet.

Description

DUAL DISPENSING NOZZLE AND METHOD OF USING THE

SAME

CROSS REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority to U.S. Patent Application No. 63/043,266 filed June 24, 2020, which is incorporated by reference herein in its entirety.

TECHNICAL FIELD

[0002] The present disclosure relates to nozzles for the dispensing of various materials and methods for dispensing various materials using nozzles, and in particular, to nozzles for use in liquid applicators, and more particularly to nozzles for use in applicators of liquid adhesives to substrates.

BACKGROUND

[0003] Many industrial manufacturing processes require the application of fibrous or solid film adhesive coatings to substrates. For example, in the application of nonwoven absorbent pads to impervious plastic web substrates, an application of adhesive is used to bond the two substrates together.

[0004] In the production of discrete coatings and adhesives for lamination of discrete substrate areas, for example, it is desirable to obtain broad, uniform fibrous coatings in a non- contact application process with sharp, square, cut-on and cut-off edges with no stringing of material.

[0005] In conventional applicators, a central slot nozzle includes a single adhesive inlet through which adhesive is received and an adhesive outlet through which the adhesive is extruded. These conventional slot nozzles may include one or more air inlets and outlets for receiving and dispersing low-volume, high-velocity heated process air to fiberize the adhesive and convey the adhesive particles over a short distance to a substrate. With these conventional slot nozzles, the process air flow may be manipulated to control the density of the adhesive pattern. In these conventional slot nozzles, only a single adhesive and a single amount of adhesive can be applied at a single application point. Historically, to achieve the application of multiple adhesives at a single application point, multiple applicators and nozzles must be provided. [0006] It would therefore be desirable to design a nozzle for a dispensing system that is capable of applying multiple fluids (e.g., adhesives) at a single application point using a single applicator and a single nozzle. Such a nozzle would desirably be capable of applying different glue add-ons or different glue types at a single application point, such as in one pattern stripe and/or area.

SUMMARY

[0007] Described herein are nozzles for use in a dispensing system (e.g., with a material applicator) and methods of using the same.

[0008] The nozzles of the present disclosure may enhance hotmelt adhesive pattern uniformity and improve product features for breathability, appearance, hand, permeability, softness, and uninhibited and uniform elastic retraction. Such nozzles may be used on continuous and intermittent webs for high-quality nonwovens and textiles products. Such nozzles may be used in high-speed, non-contact spray applications. Such nozzles may provide adhesive savings with lower add-on rates than conventional contact slot methods. Such nozzles may produce non-contact fibrous coatings on irregular surfaces. Such nozzles may reduce web distortion and/or heat distortion of thermally-fragile webs or those susceptible to bleed-through because adhesive cools prior to web contact. Such nozzles may manage pattern precision to meet specific product attributes by manipulating pattern air flow to alter coating density. Such nozzles may dispense uniform patterns and bonds with sharp and square side, leading and trailing edges. Such nozzles may protect against damage or incidental contact due to recessed nozzle tips. Such nozzles may allow for exacting pattern configurations for full- and partial- width coverage. Such nozzles may allow for dispensing in multiple orientations. Such nozzles may improve nozzle tip temperatures, such as by having greater area in contact with a heated dispensing module. Such nozzles support a wide range of substrates, including heat-sensitive substrates. Such nozzles may allow coating density adjustments through manipulation of pattern air flow.

[0009] Such nozzles may advantageously be quickly and efficiently adapted for use with a variety of different applicators or modules (e.g., for continuous and less demanding intermittent operations, for high-sped intermittent lines, for metering applications, with high speed electrically-actuated modules). Designing the nozzles as removable and interchangeable may eliminate the need for application-specific equipment, and common parts may reduce inventory and maintenance costs, streamline service, and speed product changeovers. The nozzles described herein may provide a wide selection of operating characteristics that accommodate specific aesthetic and functional requirements, including coverage density, bond strength, and high-speed capabilities for intermittent coatings and laminations. Such nozzles may be designed to withstand the rigors of repeated cleaning and elevated industrial oven temperatures. Such nozzles may include surface-mounted seals to provide ease of service and prevent leaks.

[0010] In an example, a nozzle for a dispensing system comprises a first fluid inlet (e.g., a first adhesive inlet), a second fluid inlet (e.g., a second adhesive inlet), a fluid outlet, a first air inlet, and a first air outlet. The first fluid inlet is in fluid communication with a first fluid channel. The first fluid inlet is configured to receive a first fluid (e.g., a first adhesive). The second fluid inlet is spaced apart from the first fluid inlet along a first direction. The second fluid inlet is in fluid communication with a second fluid channel. The second fluid inlet is configured to receive a second fluid (e.g., a second adhesive). The fluid outlet is elongate along a second direction that is perpendicular to the first direction. The fluid outlet is in fluid communication with the first fluid channel along a first side of the fluid outlet. The fluid outlet is in fluid communication with the second fluid channel along a second side of the fluid outlet. The fluid outlet is configured to dispense the first and second fluids therefrom. The first air inlet is in fluid communication with a first air channel. The first air inlet is configured to receive a first stream of air. The first air outlet is in fluid communication with the first air channel. The first air outlet is positioned proximate the fluid outlet. The first air outlet is configured to direct the first stream of air toward the first and second fluids as the first and second fluids are dispensed from the fluid outlet.

[0011] Another example is an applicator of a dispensing system. The applicator comprises a manifold and a nozzle as described above. The nozzle is operatively connected to the manifold. The manifold is configured to communicate the first fluid to the first fluid inlet of the nozzle. The manifold is further configured to communicate the second fluid to the second fluid inlet of the nozzle.

[0012] In another example, a hotmelt applicator comprises a manifold and a nozzle.

The manifold is configured to receive a first hotmelt. The manifold is further configured to receive a second hotmelt. The nozzle is supported relative to the manifold. The nozzle comprises a first fluid inlet, a second fluid inlet, and a fluid outlet. The first fluid inlet is configured to receive the first hotmelt from the manifold. The second fluid inlet is configured to receive the second hotmelt from the manifold. The fluid outlet is divided into at least one first outlet slot and at least one second outlet slot. The at least one first outlet slot is in fluid communication with the first fluid inlet. The at least one first outlet slot is configured to dispense a first stream of the first hotmelt therefrom. The at least one second outlet slot is in fluid communication with the second fluid inlet. The at least one second outlet slot is configured to dispense a second stream of the second hotmelt therefrom. The second stream of the second hotmelt is separate from the first stream of the first hotmelt.

[0013] A further example is a method of using a nozzle of a dispensing system. The method comprises a step of supplying a first fluid. The first fluid is supplied to a first fluid inlet of the nozzle. The method comprises a step of supplying a second fluid. The second fluid is supplied to a second fluid inlet of the nozzle. The second fluid inlet is spaced apart from the first fluid inlet along a first direction. The method comprises a step of suppling a first stream of air. The first stream of air is supplied to a first air inlet of the nozzle. The method comprises a step of receiving the first fluid. The first fluid is received along a first side of a fluid outlet of the nozzle. The fluid outlet is elongate along a second direction that is perpendicular to the first direction. The method comprises a step of receiving the second fluid. The second fluid is received along a second side of the fluid outlet. The method comprises a step of dispensing the first and second fluids from the fluid outlet. The method comprises a step of directing the first stream of air as the first and second fluids are dispensed from the fluid outlet. The first stream of air is directed from a first air outlet toward the first and second fluids as the first and second fluids are dispensed from the fluid outlet.

BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The following description of the illustrative examples may be better understood when read in conjunction with the appended drawings. It is understood that potential examples of the disclosed systems and methods are not limited to those depicted.

[0015] FIG. 1 shows a side view of an applicator according to one example;

[0016] FIG. 2 shows a perspective view of a nozzle of the applicator of FIG. 1 according to one example;

[0017] FIG. 3 shows a top view of the nozzle of FIG. 2 according to one example;

[0018] FIG. 4 shows a bottom view of the nozzle of FIG. 2 according to one example;

[0019] FIG. 5 shows a side view of the nozzle of FIG. 2 according to one example;

[0020] FIG. 6 shows a side cross-sectional view along line 6-6’ of FIG. 3 of fluid and air channels of the nozzle according to one example; [0021] FIG. 7 shows a side cross-sectional view along line 7-7’ of FIG. 4 showing fluid channels of the nozzle according to one example with the fluid channels enlarged for illustrative purposes;

[0022] FIG. 8 shows a top cross-sectional view along line 8-8’ of FIG. 7 according to one example in which the fluid channels of the nozzle of FIG. 7 have a first configuration;

[0023] FIG. 9 shows a front view of an application shim of the nozzle of FIG. 8 according to one example;

[0024] FIG. 10 shows a perspective view of an application shim of the nozzle of FIG. 8 according to one example;

[0025] FIG. 11 shows atop cross-sectional view along line 8-8’ of FIG. 7 according to another example in which the fluid channels of the nozzle of FIG. 6 have an alternative configuration;

[0026] FIG. 12A shows a perspective view of a separator shim of the nozzle of FIG. 11 according to one example; and

[0027] FIG. 12B shows a perspective view of a separator shim of the nozzle of FIG. 11 according to one example.

DETAILED DESCRIPTION

[0028] In the following detailed description, reference is made to the accompanying drawings, which form a part hereof. In the drawings, similar symbols identify similar components, unless context dictates otherwise. The illustrative examples described in the detailed description and drawings are not meant to be limiting and are for explanatory purposes. Other examples may be utilized, and other changes may be made, without departing from the spirit or scope of the subject matter presented herein. It will be readily understood that the aspects of the present disclosure, as generally described herein and illustrated in the drawings, may be arranged, substituted, combined, and designed in a wide variety of different configurations, each of which are explicitly contemplated and form a part of this disclosure.

[0029] While conventional nozzles, applicators, and dispensing systems have been adequate for their intended purpose, there is a need for a nozzle that is capable of dispensing or spraying multiple fluids using a single nozzle and/or a single applicator.

[0030] The nozzles, applicators, and dispensing systems of the present disclosure can be used in a variety of applications as will be readily appreciated by those skilled in the art. By way of non-limiting example, it is contemplated that the foregoing may be used on continuous and intermittent webs for high-quality nonwovens and textiles products, including in high-speed, non-contact spray applications (e.g., hot-melt spray applications).

[0031] Referring generally to FIGS. 1, 6, and 7, a nozzle 100 of an adhesive dispensing system 10 has a first fluid inlet 110, a second fluid inlet 120, and a fluid outlet 130. The first fluid inlet 110 is in fluid communication with the fluid outlet 130, and is configured to receive a first fluid from the dispensing system 10 and direct the first fluid to the fluid outlet 130. The second fluid inlet 120 is spaced from the first fluid inlet with respect to a first direction X. The second fluid inlet 120 is in fluid communication with the fluid outlet 130 and is configured to receive a second fluid from the dispensing system 10 and direct the second fluid to the fluid outlet 130. The fluid outlet 130 is configured to dispense the first and second fluids therefrom in discrete and separate streams of the first and second fluids. As shown in FIGS. 4-6, the fluid outlet 130 is elongate along a second direction Y that is perpendicular to the first direction X.

[0032] The nozzle 100 can be divided into a plurality of outlet slots, each configured to dispense one of the discrete streams of the first and second fluids. For example, the nozzle 100 can comprise at least one divider wall 280 as shown in FIG. 9 and FIG. 10 that divides the fluid outlet 130 into a plurality of outlet slots. In one example, the at least one divider wall 280 can be defined by a shim 180, although in alternative examples the divider walls 280 can be defined by at least one body member 210, 220 (labeled in FIG. 5) of the nozzle 100. The first fluid inlet 110 can be configured to direct the first fluid received by the first fluid inlet 110 to at least one first outlet slot. The second fluid inlet 120 can be configured to direct the second fluid received by the second fluid inlet 120 to at least one second outlet slot, different than the at least one first outlet slot. Thus, the fluid outlet 130 can be configured to dispense discrete streams of the first and second fluids from the at least one first and at least one second outlet slots, respectively.

[0033] The nozzle 100 can comprise at least one air inlet 140 as shown in FIG. 2. The first air inlet 140 is in fluid communication with a first air channel and is configured to receive a first stream of air. The nozzle 100 can comprise a first air outlet 160 as shown in FIGS. 4 and 5. The first air outlet 160 is in fluid communication with a first air channel of the nozzle 100, is positioned proximate the fluid outlet 130, and is configured to direct the first stream of air toward the first and second fluids as the first and second fluids are dispensed from the fluid outlet 130.

[0034] Now the details of an example applicator 10 and an example nozzle 100 of an adhesive dispensing system will be described. The adhesive dispensing system may, in certain examples, include an adhesive melter and an applicator. Referring first to FIG. 1, an example applicator 10 is shown that comprises a manifold 20 and the nozzle 100. In examples as described herein, the nozzle 100 may be connected to the manifold 20. In examples, the nozzle 100 may be removably connected to the manifold 20. In one example, the nozzle 100 may be slidably received within the manifold 20 and removably connected thereto by fasteners. The applicator 10 may generally include a fluid dispensing module 22, a process air module (not shown), an actuation air manifold (not shown), an air pressure indicator 27, a process air heater 28, and/or a filter 29. The process air heater 28 may be connected directly to the air inlet(s) of the nozzle. The dispensing system may employ a controller (not shown) to initiate and stop the generation of stream(s) of air and stream(s) of fluid material to the nozzle so as to continuously or intermittently provide air and/or material to the nozzle, as described herein. In examples, the applicator includes multiple hydraulic sections to realize the separate and independent dispensing of first and second fluids, as described herein. In examples, the applicator may include a first hydraulic section configured to communicate a first fluid to the nozzle and a second hydraulic section configured to communicate the second fluid to the nozzle. As described herein and as will be appreciated by those skilled in the art, the nozzles described herein may be utilized with a wide variety of applicators and are not limited to use with the exemplary applicator shown in FIG. 1.

[0035] Turning now to FIGS. 2-5, a nozzle 100 is shown according to one example.

The nozzle 100 comprises a body 200. The body 200 may be of any suitable size and shape to suit a particular application.

[0036] The body 200 can have a forward end 202 and an opposite rear end 204 that are spaced from one another along the first direction X. The body 200 can have a first end 203 and a second end 205 that are spaced from one another along the second direction Y. The first and second ends 203 and 205 can extend between the forward and rear ends 202 and 204. The second direction Y is generally perpendicular to the first direction X. The body 200 can have a top end 206 and an opposite bottom end 208 that are spaced from one another along a third direction Z. The top and bottom ends 206 and 208 can extend between the forward and rear ends 202 and 204 and between the first and second ends 203 and 205. The third direction Z is generally perpendicular to the first direction X and the second direction Y. The nozzle body 200 can have a first side 201a and an opposite second side 201b that are spaced from one another along the first direction X. The first and second sides 201a and 201b of the nozzle body 200 can be separated by a dividing plane 201. In this way, the dividing plane 201 may divide the nozzle body 200. The dividing plane 201 can extend along the second direction Y and the third direction Z. In some examples, the dividing plane 201 can divide the nozzle body 200 into two equal parts, although examples of the disclosure are not so limited.

[0037] As may be best seen in FIG. 5, the nozzle body 200 may include a first body member 210 and a second body member 220. The first and second body members 210 and 220 are offset from one another along the first direction X. The first body member 210 is positioned on the first side 201a of the nozzle body 200. The second body member 220 is positioned on the second side 201b of the nozzle body 200. The first body member 210 and the second body member 220 may generally meet one another at the dividing plane 201. Put another way, the first body member 210 and the second body member 220 are positioned on opposite sides of the nozzle body 200 (namely, on opposite sides of the dividing plane 201). Thus, the first body member 210 can extend from the dividing plane 201 (e.g., from the second body member 220) towards the forward end 202, and the second body 210 can extend from the dividing plane 201 (e.g., from the first body member 210) towards the rear end 204. In this example, the first body member 210 includes an inner face 212, and the second body member 220 includes an inner face 222. The inner faces 212, 222 of the first and second body members 210, 220 generally face one another, as shown in FIG. 5.

[0038] With continued reference to FIG. 5, the nozzle body 200 may include a first air block 240 and a second air block 250. The first air block 240 is positioned on the first side 201a of the nozzle body 200. The second air block 250 is positioned on the second side 201b 204 of the nozzle body 200. Put another way, the first air block 240 and the second air block 250 are positioned on opposite sides of the nozzle body 200 (namely, on opposite sides of the dividing plane 201). In examples, the first air block 240 may be positioned below the first body member 210 of the nozzle body 200, and the second air block 250 may be positioned below the second body member 220 of the nozzle body 200.

[0039] With reference to FIG. 6, the first side 201a of the nozzle body 200 may define a first fluid channel 112. The second side 201b of the nozzle body may define a second fluid channel 122. As described herein, the first fluid channel 112 may generally distribute a first fluid through the first body member 210. Similarly, as described herein, the second fluid channel 122 may generally distribute a second fluid through the second body member 220. In examples, the first side 201a of the nozzle body 200 may define a first air channel 142. In examples, the second side 201b of the nozzle body 200 may define a second air channel 152. As described herein, the first air channel 142 may generally distribute air through the first body member 210 and the first air block 240. In examples, at least a portion of the first air channel 142 may extend between the first body member 210 and the first air block 240. Similarly, as described herein, the second air channel 152 may generally distribute air through the second body member 220 and the second air block 250. In examples, at least a portion of the second air channel 152 may extend between the second body member 220 and the second air block 250.

[0040] In the example illustrated in FIG. 6, the first body member 210 includes a projection 214. The second body member 220 also includes a projection 224. The projections 214, 224 of the first and second body members 210, 220 generally depend downwardly (i.e., along the third direction Z). In this example, the first air block 240 includes an inclined surface 242, and the second air block 250 includes an inclined surface 252. The inclined surface 242 of the first air block 240 generally faces the projection 214 of the first body member 210 so as to define a first air gap therebetween. The first air gap defined between the inclined surface 242 of the first air block 240 and the projection 214 of the first body member 210 may form a portion of the first air channel 142. Similarly, the inclined surface 252 of the second air block 250 generally faces the projection 224 of the second body member 220 so as to define a second air gap therebetween. The second air gap defined between the inclined surface 252 of the second air block 250 and the projection 224 of the second body member 220 may form a portion of the second air channel 152. The inclined surfaces 242, 252 of the first and second air blocks 240, 250 are generally angled towards the dividing plane 201 as they extend towards the bottom end 208 of the nozzle body 200, such as shown in FIG. 5. As shown in the example illustrated in FIG. 5, the first and second air blocks 240, 250 can each have a lower edge that extends below the fluid outlet 130, which may provide a degree of protection from mechanical damage. However, examples of the disclosure are not limited to having such lower edges.

[0041] As illustrated in FIGS. 2-5, the nozzle 100 defines a first fluid inlet 110. The first fluid inlet 110 is can be defined on the first side 201a of the nozzle body 200. The first fluid inlet 110 can be defined in the first body member 210 of the nozzle body 200. The first fluid inlet 110 may be defined at the top end 206 of the nozzle body 200 on the first body member 210. The first fluid inlet 110 is configured to receive a first fluid (e.g., a hotmelt adhesive). The first fluid may be received at the first fluid inlet 110 of the nozzle 100 from another portion of the applicator or dispensing system.

[0042] In a similar manner, the nozzle 100 defines a second fluid inlet 120. The second fluid inlet 120 can be defined on the second side 201b of the nozzle body 200. Put another way, the second fluid inlet 120 is spaced apart from the first fluid inlet 110 the first direction X. The second fluid inlet 120 can be defined in the second body member 220 of the nozzle body 200. The second fluid inlet 120 can be defined at the top end 206 of the nozzle body 200 on the second body member 220. The second fluid inlet 120 is configured to receive a second fluid (e.g., a hotmelt adhesive). The second fluid may be received at the second fluid inlet 120 of the nozzle 100 from another portion of the applicator or dispensing system. The second fluid may be received at the second fluid inlet 120 of the nozzle 100 from the same or a different portion of the applicator or dispensing system as the first fluid received at the first fluid inlet 110 of the nozzle 100.

[0043] In certain examples, the first fluid received at the first fluid inlet 110 may be different from the second fluid received at the second fluid inlet 120. Each of the first and second fluids can be, for example, an adhesive, such as a hotmelt adhesive. In one example, the first fluid and the second fluid may be different types of fluid, such as different types of adhesives or hotmelts. In this regard, the first fluid may be received at the first fluid inlet 110 of the nozzle 100 from a first portion of the applicator or dispensing system, and the second fluid may be received at the second fluid inlet 120 of the nozzle 100 from a second, different portion of the applicator or dispensing system. The first and second fluids may be different materials (i.e., have different chemical compositions). In some examples, the first and second fluids may have different add-on rates. In some examples, the first and second fluids may be dispensed at different flow rates. In another example, the first fluid and the second fluid may be the same material, but may be dispensed in differing amounts. In this regard, the first fluid may be received at the first fluid inlet 110 of the nozzle 100 from a first portion of the applicator or dispensing system, and the second fluid may be received at the second fluid inlet 120 of the nozzle 100 from the same, first portion of the applicator or dispensing system. The first and second fluids dispensed in differing amounts may be discretely dispensed in distinct areas of a substrate. Each of the foregoing non-limiting examples includes first and second fluids that are different (e.g., different materials, different add-on rates, dispensed at different flow rates, dispensed in different amounts). By way of non-limiting example, the first and second fluids may be open, fibrous, or porous coatings or solid films and may be formed from glue or other adhesive materials, such as hotmelt adhesives, cold glues, paints, or other fluid materials of adhesive or non-adhesive nature.

[0044] With specific reference now to FIG. 3 and FIG. 4, it can be seen that, in this example, the nozzle body 200 can be generally reflectionally symmetrical about the dividing plane 201 of the nozzle body 200. It will be understood, however, that examples of the disclosure are not so limited. [0045] With specific reference now to FIG. 4, the nozzle 100 defines a fluid outlet 130 therein. The fluid outlet 130 can be defined at the bottom end 208 of the nozzle body 200. The fluid outlet 130 is elongate along the second direction Y. For example, the fluid outlet 130 generally extends along the second direction Y between the forward end 203 and the rear end 205 of the nozzle body 200. The fluid outlet 130 may be formed as a slot outlet. The fluid outlet 130 is defined at the dividing plane 201 of the nozzle body 200. Put another way, the fluid outlet 130 is centrally located between the forward end 202 and the rear end 204 of the nozzle body 200, such as between the first body member 210 and the second body member 220.

[0046] A first side 132 of the fluid outlet 130 is positioned proximate the forward end 202 of the nozzle body 200. Fluid outlet 130 may generally extend along the third direction Z into the first body member 110 along the first side 132 of the fluid outlet 130. In this way, the fluid outlet 130 is configured to receive the first fluid along the first side 132 of the fluid outlet 130. The fluid outlet 130 is further configured to dispense the first fluid therefrom. In this regard, as detailed herein, the fluid outlet 130 (namely, the first side 132 of the fluid outlet 130) is in fluid communication with the first fluid inlet 110.

[0047] A second side 134 of the fluid outlet 130 is positioned proximate the rear end 204 of the nozzle body 200. Fluid outlet 130 may generally extend along the third direction Z into the second body member 120 along the second side 134 of the fluid outlet 130. In this way, the fluid outlet 130 is configured to receive the second fluid along the second side 134 of the fluid outlet 130. The fluid outlet 130 is further configured to dispense the second fluid therefrom. In this regard, as detailed herein, the fluid outlet 130 (namely, the second side 134 of the fluid outlet 130) is in fluid communication with the second fluid inlet 120.

[0048] With reference to FIGS. 2, 5, and 6, the nozzle 100 defines a first air inlet 140. The first air inlet 140 can be defined on the first side 201a of the nozzle body 200. The first air inlet 140 can be defined in the first body member 210 of the nozzle body 200 proximate the first fluid inlet 110. The first air inlet 140 can be defined at the top end 206 of the nozzle body 200 on the first body member 210 proximate the first fluid inlet 110. The first air inlet 140 is configured to receive air (e.g., process air). In certain examples, the air received at the first air inlet 140 may be a first stream of air. The first stream of air may be received at the first air inlet 140 of the nozzle 100 from another portion of the applicator or dispensing system. The first stream of air received at the first air inlet 140 of the nozzle 100 may be heated and/or under pressure. [0049] In a similar manner, the nozzle 100 defines a second air inlet 150. The second air inlet 150 can be defined on the second side 201b of the nozzle body 200. Put another way, the second air inlet 150 is spaced apart from the first air inlet 140 with respect to the first direction X. The second air inlet 150 can be defined in the second body member 220 of the nozzle body 200 proximate the second fluid inlet 120. The second air inlet 150 can be defined at the top end 206 of the nozzle body 200 on the second body member 220 proximate the second fluid inlet 120. The second air inlet 150 is configured to receive air (e.g., process air). In certain examples, the air received at the second air inlet 150 may be a second stream of air. The second stream of air may be received at the second air inlet 150 of the nozzle 100 from the same or a different portion of the applicator or dispensing system as the first stream of air received at the first air inlet 140 of the nozzle 100. The second stream of air received at the second air inlet 150 of the nozzle 100 may be heated and/or under pressure.

[0050] With specific reference now to FIG. 4 and FIG. 5, the nozzle 100 defines a first air outlet 160. The first air outlet 160 is disposed adjacent to the bottom end 208 of the nozzle body 200. The first air outlet 160 is elongate along the second direction Y. The first air outlet 160 can be defined proximate the fluid outlet 130. The first air outlet 160 can be defined proximate the first side 132 of the fluid outlet 130. The first air outlet 160 may generally extend along the second direction Y between the forward end 203 and the rear end 205 of the nozzle body 200. Additionally, the first air outlet 160 may generally extend along the third direction Z into the first air block 240 proximate the first side 132 of the fluid outlet 130. The first air outlet 160 is in fluid communication with the first air inlet 140. In this way, the first air outlet 160 is configured to receive air (e.g., the first stream of air) from the first fluid inlet 140 and to dispense the air proximate the first side 132 of the fluid outlet 130. The first air outlet 160 is configured to direct the first stream of air toward the first and second fluids as they are dispensed from the fluid outlet 130.

[0051] In a similar manner, the nozzle 100 defines a second air outlet 170. The second air outlet 170 is disposed adjacent to the bottom end 208 of the nozzle body 200. The second air outlet 170 is elongate along the second direction Y. The second air outlet 170 can be defined proximate the fluid outlet 130. The second air outlet 170 can be defined proximate the second side 134 of the fluid outlet 130. In this way, the first air outlet 160 and the second air outlet 170 are positioned on opposite sides of the fluid outlet 130. The second air outlet 170 may generally extend along the second direction Y between the forward end 203 and the rear end 205 of the nozzle body 200. Additionally, the second air outlet 170 may generally extend along the third direction Z into the second air block 250 proximate the second side 134 of the fluid outlet 130. The second air outlet 170 is in fluid communication with the second air inlet 150. In this way, the second air outlet 170 is configured to receive air (e.g., the second stream of air) from the second air inlet 150 and to dispense the air proximate the second side 134 of the fluid outlet 130. The second air outlet 170 is configured to direct the second stream of air toward the first and second fluids as they are dispensed from the fluid outlet 130.

[0052] Turning now to FIG. 6, an end cross-sectional view of the nozzle 100 taken along line 6-6’ of FIG. 3 according to one example can be seen. In particular, fluid and air channels of the nozzle body 200 can be readily seen according to this particular example.

[0053] In the example illustrated in FIG. 6, the first body member 210 defines a first fluid channel 112. The first fluid channel 112 is in fluid communication with the first fluid inlet 110. In this example, the first fluid channel 112 extends from the first fluid inlet 110 to the fluid outlet 130. In this example, the first fluid channel 112 extends from the first fluid inlet 110 downwardly along the third direction Z toward the bottom end 208 of the nozzle body 200, then extends along the first direction X toward the dividing plane 201, and then extends downwardly along the third direction Z proximate the dividing plane 201 to the fluid outlet 130. As will be appreciated, the first fluid received at the first fluid inlet 110 flows from the first fluid inlet 110 to the fluid outlet 130 via the first fluid channel 112. In this regard, the first fluid channel 112 generally extends through the first body member 210 from the top end 206 of the nozzle body 200 to the bottom end 208 of the nozzle body 200. At least a portion of the first fluid channel 112 may extend along the inner face 212 of the first body member 210. At least a portion of the first fluid channel 112 may extend between the inner faces 212, 214 of the first and second body members 210, 220 between the first and second projections 214, 224 thereof.

[0054] In a similar manner, second body member 220 defines a second fluid channel 122. The second fluid channel 122 is in fluid communication with the second fluid inlet 120. In the example illustrated in FIG. 6, the second fluid channel 122 extends from the second fluid inlet 120 to the fluid outlet 130. In this example, the second fluid channel 122 extends from the second fluid inlet 120 downwardly along the third direction Z toward the bottom end 208 of the nozzle body 200, then extends along the first direction X toward the dividing plane 201, and then extends downwardly along the third direction Z proximate the dividing plane 201 to the fluid outlet 130. As will be appreciated, the second fluid received at the second fluid inlet 120 flows from the second fluid inlet 120 to the fluid outlet 130 via the second fluid channel 122. In this regard, the second fluid channel 122 generally extends through the second body member 220 from the top end 206 of the nozzle body 200 to the bottom end 208 of the nozzle body 200. At least a portion of the second fluid channel 122 may extend along the inner face 222 of the second body member 220. At least a portion of the second fluid channel 122 may extend between the inner faces 212, 214 of the first and second body members 210, 220 between the first and second projections 214, 224 thereof.

[0055] The fluid outlet 130 is configured to dispense the first and second fluids therefrom. The fluid outlet 130 may be configured to dispense both, neither, or only one of the first and second fluids therefrom at a given point in time. During operation, the fluid outlet 130 is configured to continuously or intermittently dispense the first fluid and/or the second fluid therefrom. The fluid outlet 130 may be in fluid communication with the first fluid channel 112 along the first side 132 of the fluid outlet 130, and the fluid outlet 130 is in fluid communication with the second fluid channel 122 along the second side 134 of the fluid outlet 130. Put another way, the first fluid may be received at the fluid outlet 130 along the first side 132 of the fluid outlet 130, and the second fluid may be received at the fluid outlet 130 along the second side 134 of the fluid outlet 130.

[0056] With continued reference to FIG. 6, the first body member 210 and the first air block 240 may collectively define a first air channel 142. The first air channel 142 is in fluid communication with the first air inlet 140. In this example, the first air channel 142 extends from the first air inlet 140 to the first air outlet 160. In this example, the first air channel 142 extends from the first air inlet 140 generally downwardly through the first body member 210 along the third direction Z toward the bottom end 208 of the nozzle body 200. The first air channel 142 then extends from the first body member 210 and into the first air block 240. Seals (not shown), such as in the form of O-rings, may be disposed at the interface between the first body member 210 and the first air block 240 so as to seal first air channel 142 as between the first body member 210 and the first air block 240.

[0057] In this example, the first air block 240 defines a first air plenum 144. The first air plenum 144 may be elongate along the second direction Y. In this example, the first air plenum 144 forms a portion of the first air channel 142. As will be appreciated, when the nozzle body 200 is assembled as shown in FIG. 6, the upper boundary of the first air plenum 144 is defined by a lower surface of the first body member 210. From the first air inlet 140, the first air channel 142 extends along the third direction Z towards the bottom end 208 of the nozzle body 200, and then extends generally downwardly along the third direction Z and leads into the first air plenum 144. This portion of the first air channel 142 extending from the first air inlet 140 and leading into the first air plenum 144 defines a first air inlet passageway 142a . From the first air plenum 144, the first air channel 142 extends along the first direction X toward the dividing plane 201, and then extends generally downwardly along the third direction Z toward the first air outlet 160. This portion of the first air channel 142 extending from the first air plenum 144 to the first air outlet 160 defines a first air outlet passageway 142b. As will be appreciated, the air (e.g., first stream of air) received at the first air inlet 140 flows from the first air inlet 140 to the first air plenum 144 via the first air inlet passageway 142a, and from the first air plenum 144 to the first air outlet 160 via the first air outlet passageway 142b. As can be seen in FIG. 6, in this example, the first air plenum 144 may have a cross-sectional dimension in a plane that extends along the first direction X and the third direction Z that is greater than a diameter of the first air inlet passageway 142a. Moreover, in this example, the first air plenum 114 may have a cross- sectional dimension in a plane that extends along the first direction X and the third direction Z that is greater than a diameter of the first air outlet passageway 142b.

[0058] The first air channel 142 generally extends through the first body member 210 and the first air block 240 between the top end 206 of the nozzle body 200 and the bottom end 208 of the nozzle body 200. At least a portion of the first air channel 142 extends between the first body member 210 and the first air block 240 (e.g., along the first direction X). At least a portion of the first air channel 142 may extend between the projection 214 of the first body member 210 and the inclined surface 242 of the first air block 240 to the first air outlet 160. In this example, the portion of the first air channel 142 extending between the projection 214 of the first body member 210 and the inclined surface 242 of the first air block 240 may be angled relative to the dividing plane 201. The portion of the first air channel 142 extending between the projection 214 of the first body member 210 and the inclined surface 242 of the first air block 240 may be oriented at an angle A of from about 20° to about 40° relative to the dividing plane 201. As the first and second fluids are dispensed from the fluid outlet 130, the first stream of air moving through the first air channel 142 and out of the first air outlet 160 is directed towards the first and second fluids. The first stream of air is generally directed from the first air outlet 160 toward the first and second fluids before such fluids engage or are deposited on an underlying substrate that is presented for spraying, coating, deposition, or the like (e.g., via a non-contact dispensing application).

[0059] In a similar manner, the second body member 220 and the second air block 250 may collectively include a second air channel 152. The second air channel 152 is in fluid communication with the second air inlet 150. In this example, the second air channel 152 extends from the second air inlet 150 to the second air outlet 170. In this example, the second air channel 152 extends from the second air inlet 150 generally downwardly through the second body member 220 along the third direction Z toward the bottom end 208 of the nozzle body 200. The second air channel 152 then extends from the second body member 220 and into the second air block 250. Seals (not shown), such as in the form of O-rings, may be disposed at the interface between the second body member 220 and the second air block 250 so as to seal second air channel 152 as between the second body member 220 and the second air block 250.

[0060] In this example, the second air block 250 defines a second air plenum 154. The second air plenum 154 may be elongate along the second direction Y. In this example, the second air plenum 154 forms a portion of the second air channel 152. As will be appreciated, when the nozzle body 200 is assembled as shown in FIG. 6, the upper boundary of the second air plenum 154 is defined by a lower surface of the second body member 220. From the second air inlet 150, the second air channel 152 extends along the third direction Z towards the bottom end 208 of the nozzle body 200, and then extends generally downwardly along the third direction Z and leads into the second air plenum 154. This portion of the second air channel 152 extending from the second air inlet 150 and leading into the second air plenum 154 defines a second air inlet passageway 152a. From the second air plenum 154, the second air channel 152 extends along the first direction X toward the dividing plane 201, and then extends generally downwardly along the third direction Z toward the second air outlet 170. This portion of the second air channel 152 extending from the second air plenum 154 to the second air outlet 170 defines a second air outlet passageway 152b. As will be appreciated, the air (e.g., second stream of air) received at the second air inlet 150 flows from the second air inlet 150 to the second air plenum 154 via the first air inlet passageway 152a, and from the second air plenum 154 to the second air outlet 170 via the second air outlet passageway 152b. As can be seen in FIG. 6, in this example, the second air plenum 154 may have a cross-sectional dimension in a plane that extends along the first direction X and the third direction Z that is greater than a diameter of the second air inlet passageway 152a. Moreover, in this example, the second air plenum 154 may have a cross-sectional dimension in a plane that extends along the first direction X and the third direction Z that is greater than a diameter of the second air outlet passageway 152b.

[0061] The second air channel 152 generally extends through the second body member 220 and the second air block 250 between the top end 206 of the nozzle body 200 and the bottom end 208 of the nozzle body 200. At least a portion of the second air channel 152 extends between the second body member 220 and the second air block 250 (i.e., along the first direction X). At least a portion of the second air channel 152 may extend between the projection 224 of the second body member 220 and the inclined surface 252 of the second air block 250 to the second air outlet 170. In this example, the portion of the second air channel 152 extending between the projection 224 of the second body member 220 and the inclined surface 252 of the second air block 250 may be angled relative to the dividing plane 201. The portion of the second air channel 152 extending between the projection 224 of the second body member 220 and the inclined surface 252 of the second air block 250 may be oriented at an angle B of from about 20° to about 40° relative to the dividing plane 201. As the first and second fluids are dispensed from the fluid outlet 130, the second stream of air moving through the second air channel 152 and out of the second air outlet 170 is directed towards the first and second fluids. The second stream of air is generally directed from the second air outlet 170 toward the first and second fluids before such fluids engage or are deposited on an underlying substrate that is presented for spraying, coating, deposition, or the like (e.g., via a non-contact dispensing application).

[0062] Turning now to FIG. 7, an end cross-sectional view of the nozzle 100 taken along line 7-7’ of FIG. 4 according to one example can be seen. In particular, the fluid channels in the nozzle body 200 can be readily seen according to this particular example, and the fluid channels are enlarged for illustrative purposes. The fluid channels operate similarly to those as described with respect to the example illustrated in FIG. 6, except as described below.

[0063] In the example illustrated in FIG. 7, the first fluid channel 112 extends from the first fluid inlet 110 downwardly along the third direction Z toward the bottom end 208 of the nozzle body 200, then extends along the first direction X toward the dividing plane 201 and leads into a first distribution channel 114. This portion of the first fluid channel 112 extending from the first fluid inlet 110 to the first distribution channel 114 defines a first fluid inlet passageway 112a. In this example, the first fluid channel 112 then extends from the distribution channel 114 along the first direction X toward the dividing plane 201 and then extends downwardly along the third direction Z proximate the dividing plane 201 to the fluid outlet 130. This portion of the first fluid channel 112 extending from the first distribution channel 114 to the fluid outlet 130 defines at least one first fluid outlet passageway 112b. In some examples, as discussed below in relation to FIGS. 8-10, the at least one first fluid outlet passageway 112b may include a plurality of first fluid outlet passageways or subchannels spaced apart from one another along the second direction Y. As described herein, the plurality of first fluid outlet passageways or subchannels may be spaced apart or otherwise divided from one another by one or more shims. In other examples, as discussed below in relation to FIGS. 11-12B, the at least one first fluid outlet passageway 112b may be elongate along the second direction Y, and the first fluid passageways or subchannels may be defined by at least one shim 192.

[0064] As will be appreciated, the first fluid received at the first fluid inlet 110 flows from the first fluid inlet 110 to the first distribution channel 114 via the first fluid inlet passageway 112a, and from the first distribution channel 114 to the fluid outlet 130 via the at least one first fluid outlet passageway 112b. As can be seen in FIG. 7, in this example, the first distribution channel 114 may have a diameter that is greater than a diameter of the first fluid inlet passageway 112a. Moreover, in this example, the first distribution channel 114 may have a diameter that is greater than a diameter of the at least one first fluid outlet passageway 112b.

[0065] In a similar manner, in the example illustrated in FIG. 7, the second fluid channel 122 extends from the second fluid inlet 120 downwardly along the third direction Z toward the bottom end 208 of the nozzle body 200, then extends along the first direction X toward the dividing plane 201 and leads into a second distribution channel 124. This portion of the second fluid channel 122 extending from the second fluid inlet 120 to the second distribution channel 124 defines a second fluid inlet passageway 122a. In this example, the second fluid channel 122 then extends from the distribution channel 124 along the first direction X toward the dividing plane 201 and then extends downwardly along the third direction Z proximate the dividing plane 201 to the fluid outlet 130. This portion of the second fluid channel 122 extending from the second distribution channel 124 to the fluid outlet 130 defines at least one second fluid outlet passageway 122b. In some examples, as discussed below in relation to FIGS. 8-10, the at least one second fluid outlet passageway 122b may include a plurality of second fluid outlet passageways or subchannels spaced apart from one another along the second direction Y. As described herein, the plurality of second fluid outlet passageways or subchannels may be spaced apart or otherwise divided from one another by one or more shims. In other examples, as discussed below in relation to FIGS. 11-12B, the at least one second fluid outlet passageway 122b may be elongate along the second direction Y, and the second fluid outlet passageways or subchannels may be defined by at least one shim 194.

[0066] As will be appreciated, the second fluid received at the second fluid inlet 120 flows from the second fluid inlet 120 to the second distribution channel 124 via the second fluid inlet passageway 122a, and from the second distribution channel 124 to the fluid outlet 130 via the at least one second fluid outlet passageway 122b. As can be seen in FIG. 7, in this example, the second distribution channel 124 may have a diameter that is greater than a diameter of the second fluid inlet passageway 122a. Moreover, in this example, the second distribution channel 124 may have a diameter that is greater than a diameter of the at least one second fluid outlet passageway 122b.

[0067] Turning now to FIG. 8, a top cross-sectional view of the nozzle 100 taken along line 8-8’ of FIG. 7 according to one example can be seen. In particular, the fluid channels in the nozzle body 200 can be readily seen according to this particular example in which the fluid channels have a first configuration. The fluid channels operate similarly to those as described with respect to the example illustrated in FIG. 7.

[0068] In this example, the at least one first fluid outlet passageway 112b defines a first plurality of passageways. Each of the first plurality of passageways leads from the first distribution channel 114 to the fluid outlet 130. For clarity, only passageways 116a, 116b, and 116c of the first plurality of passageways are labeled in FIG. 7. In the example illustrated in FIG. 7, each of the first plurality of passageways provides the first fluid to a corresponding portion of the fluid outlet. For example, passageways 116a, 116b, and 116c of the first plurality of passageways respectively provide the first fluid to fluid outlet slots 130b, 130d, and 130f of the first fluid outlet slots. Put another way, each passageway leads to a separate portion of the fluid outlet, namely to a separate fluid outlet slot of the fluid outlet. As will be appreciated, each of the first plurality of passageways receives a portion of the first fluid therein and delivers the same to a corresponding one of the first fluid outlet slots. For example, passageway 116a receives a portion of the first fluid therein and delivers the same to fluid outlet slot 130b, passageway 116b receives a portion of the first fluid therein and delivers the same to fluid outlet slot 130d, and passageway 116c receives a portion of the first fluid therein and delivers the same to fluid outlet slot 130f. In this way, each of the first fluid outlet slots is configured to dispense a discrete stream of the first fluid therefrom. In examples, these discrete streams of the first fluid do not merge with one another or any other streams of fluid (e.g., streams of the second fluid) prior to the stream(s) of air being directed thereupon. In other examples, these discrete streams of the first fluid do not merge with one another or any other streams of fluid (e.g., streams of the second fluid) before such streams of the first fluid engage or are deposited on an underlying substrate that is presented for spraying, coating, deposition, or the like (e.g., via a non-contact dispensing application). Non-merger advantageously allows for the coating of discrete substrate areas with sharp, square, cut-on and cut-off edges with no stringing of the first fluid. In the example illustrated in FIG. 8, the at least one first fluid outlet passageway 112b is divided into six passageways, though it is to be understood that any number of passageways could be provided to suit a particular application. The at least one first fluid outlet passageway 112b may include one, two, three, four, five, six, or more passageways. Further, it is to be understood that the first fluid channel 112 can be provided with passageways in any of the nozzle examples described above. In this regard, a first distribution channel 114 is not required to be present to have one or more passageways leading to the fluid outlet 130.

[0069] In a similar manner, in this example, the at least one second fluid outlet passageway 122b defines a second plurality of passageways. Each of the second plurality of passageways leads from the second distribution channel 124 to the fluid outlet 130. For clarity, only passageways 126a, 126b, and 126c of the second plurality of passageways is labeled in FIG.

7. In the example illustrated in FIG. 7, each of the second plurality of passageways provides the second fluid to a corresponding portion of the fluid outlet. For example, passageways 126a,

126b, and 126c of the second plurality of passageways respectively provide the second fluid to fluid outlet slots 130a, 130c, and 130e of the second fluid outlet slots. Put another way, each passageway leads to a separate portion of the fluid outlet, , namely to a separate fluid outlet slot of the fluid outlet. As will be appreciated, each of the second plurality of passageways receives a portion of the second fluid therein and delivers the same to a corresponding one of the second fluid outlet slots. For example, passageway 126a receives a portion of the second fluid therein and delivers the same to fluid outlet slot 130a, passageway 126b receives a portion of the second fluid therein and delivers the same to fluid outlet slot 130c, and passageway 126c receives a portion of the second fluid therein and delivers the same to fluid outlet slot 130e. In this way, each of the second fluid outlet slots is configured to dispense a discrete stream of the second fluid therefrom. In examples, these discrete streams of the second fluid do not merge with one another or any other streams of fluid (e.g., streams of the first fluid) prior to the stream(s) of air being directed thereupon. In other examples, these discrete streams of the second fluid do not merge with one another or any other streams of fluid (e.g., streams of the first fluid) before such streams of the second fluid engage or are deposited on an underlying substrate that is presented for spraying, coating, deposition, or the like (e.g., via a non-contact dispensing application). Non-merger advantageously allows for the coating of discrete substrate areas with sharp, square, cut-on and cut-off edges with no stringing of the second fluid. In the example illustrated in FIG.

8, the at least one second fluid outlet passageway 122b is divided into six passageways, though it is to be understood that any number of passageways could be provided to suit a particular application. The at least one second fluid outlet passageway 122b may include one, two, three, four, five, six, or more passageways. Further, it is to be understood that the second fluid channel 122 can be provided with passageways in any of the nozzle examples described above. In this regard, a second distribution channel 124 is not required to be present to have one or more passageways leading to the fluid outlet 130.

[0070] As can now be understood with reference to the example illustrated in FIG. 8 and FIG. 9, the first plurality of passageways can be alternately arranged between the second plurality of passageways. For example, in FIG. 8 and FIG. 9, passageway 116a is positioned between passageways 126a and 126b, and passageway 116b is positioned between passageways 126b and 126c. Similarly, passageway 126b is positioned between passageways 116a and 116b, and passageway 126c is positioned between passageways 116b and 116c. In short, in this example, the first and second pluralities of passageways are alternately arranged. As a result, in this example, the nozzle 100 may define first and second sets of outlet slots, where the outlet slots of the first and second sets are likewise alternately arranged. However, it is to be understood that the first and second pluralities of passageways and the first and second sets of outlet slots may be arranged in any desired configuration so as to suit a particular application. It will be understood that, as used herein, the term “set” is used in the mathematical sense. Thus, as used herein, a “set” can define a plurality of elements or can define a single element (e.g., a unit set or singleton) unless otherwise defined to have a plurality of elements.

[0071] With reference to FIGS. 8-10, the nozzle 100 may include an application shim 180. The application shim 180 may generally be a segmented or slotted shim, as best seen in FIG. 9. The application shim 180 may include a first face 182 and an opposite second face 184. The application shim 180 is at least partially disposed between the first and second fluid channels 112, 122. The application shim is at least partially disposed between the first and second body members 210, 220 and the first and second air blocks 240, 250. The application shim 180 may be positioned such that the first face 182 of the application shim 180 faces the inner surface 212 of the first body member 210 and the second face 184 of the application shim 180 faces the inner surface 222 of the second body member 220. In examples, the application shim 180 may generally extend along the third direction Z from the top end 206 of the nozzle body 200 to the bottom end 208 of the nozzle body 200. The application shim 180 may generally be positioned at the dividing plane 201. Put another way, the application shim 180 may be centrally located between the forward end 202 and the rear end 204 of the nozzle body 200

[0072] As may be best seen in FIG. 10, the application shim 180 includes at least one divider wall 280 that defines a plurality of openings or shim slots. The divider walls 280 can be spaced from one another along the second direction Y so as to define the shim slots therebetween. The shim slots in the application shim 180 are generally elongate along the third direction Z. For clarity, only shim slots 186a-f are labeled in FIG. 10. In the example illustrated in FIG. 10, the shim slots generally extend through the application shim 180 (i.e., from the first face 182 to the second face 182 thereof). In such examples, each of the shim slots is configured to receive fluid on either face of the application shim 180. Put another way, when assembled into the nozzle, the shim slots can receive the first or second fluid. In other, non-depicted examples, the shim slots may be designed so as not to pass fully through the application shim (i.e., by extending into the first face 182 but not through to the second face 184 and/or by extending into the second face 184 but not through to the first face 182). In such examples, the shim slots on the first face 182 of the application shim 180 are only configured to receive fluid on the first face 182 of the application shim 180, and the shim slots on the second face 184 of the application shim 180 are only configured to receive fluid on the second face 184 of the application shim 180. Put another way, when assembled into the nozzle, the shim slots on the first face 182 would receive only the first fluid, while the shim slots on the second face 184 would receive only the second fluid.

[0073] The application shim 180 illustrated in FIG. 10 generally includes a first set of shim slots and a second set of shim slots. Each set can include one or more shim slots. The first set of shim slots is generally defined by alternating ones of the shim slots, and the second set of shim slots is generally defined by opposite alternating ones of the shim slots. For example, in FIG. 10, the first set of shim slots is defined by alternating shim slots 186b, 186d, and 186f. Conversely, the second set of shim slots is defined by alternating shim slots 186a, 186c, and 186e. With reference back to FIG. 9 for understanding, shim slot 186a fluidly communicates with passageway 126a and outlet 130a, shim slot 186b fluidly communicates with passageway 116a and outlet 130b, shim slot 186c fluidly communicates with passageway 126b and outlet 130c, shim slot 186d fluidly communicates with passageway 116b and outlet 130d, shim slot 186e fluidly communicates with passageway 126c and outlet 130e, and shim slot 186f fluidly communicates with passageway 116c and outlet 130f. As will now be appreciated, the first set of shim slots (e.g., slots 186b, 186d, and 186f) are generally in fluid communication with the first fluid channel 112 and receive the first fluid therethrough. Moreover, each shim slot of the first set of shim slots is configured to deliver a discrete stream of the first fluid to the fluid outlet 130 (e.g., the first plurality of fluid outlets including outlets 130b, 130d, and 130f). Conversely, the second set of shim slots (e.g., slots 186a, 186c, and 186e) are generally in fluid communication with the second fluid channel 122 and receive the first fluid therethrough. Moreover, each slot of the second set of shim slots is configured to deliver a discrete stream of the second fluid to the fluid outlet 130 (e.g., the second plurality of fluid outlets including outlets 130a, 130c, and 130e). In short, in this example, the respective shim slots defining the first and second sets of shim slots are alternately arranged. However, it is to be understood that the first and second sets of shim slots may be arranged in any desired configuration so as to suit a particular application.

[0074] As will be appreciated, the size and shape of the divider walls and shim slots in the application shim 180 can be varied to suit a particular application, such as to achieve a desired basis weight of material per square meter or a desired cohesiveness or to accommodate fluids having different add-on rates, viscosities, or other properties.

[0075] Although examples have been discussed in which the divider walls are defined by the application shim, examples of the disclosure are not so limited. In alternative examples, the first body member 210 and/or the second body member 220 may define at least one, such as a plurality of, divider walls that divide the fluid outlet 130 into a first set of outlet slots and a second set of outlet slots different from the first set of outlet slots. The at least one divider wall 280 may be defined in the inner face 212 of the first body member 210 and/or in the inner face 222 of the second body member 220. The at least one divider wall 280 may be positioned proximate the dividing plane 201 of the nozzle body 200 between the first and second body members 210, 220.

[0076] Turning now to FIG. 11, a top cross-sectional view of the nozzle 100 taken along line 8-8’ of FIG. 7 according to one example can be seen. In particular, the fluid channels in the nozzle body 200 can be readily seen according to this particular example in which the fluid channels have an alternative configuration as compared to those of FIG. 8. The fluid channels operate similarly to those as described with respect to the example illustrated in FIG. 8, except as described below.

[0077] With reference back to the example illustrated in FIG. 8, the at least one first fluid outlet passageway 112b can be defined by the first body member 210, and the at least one second fluid outlet passageway 122b can be defined by the second body member 220. Alternatively, in the example illustrated in FIG. 11, the nozzle 100 may include one or more separation shims, such as those illustrated in FIG. 12A and FIG. 12B, that define the at least one first fluid outlet passageway 112b and the at least one second fluid outlet passageway 122b. In the example illustrated in FIG. 11, the nozzle 100 includes a first separation shim 192 and a second separation shim 194. The first separation shim 192 is positioned proximate the first body member 210, and the second separation shim 194 is positioned proximate the second body member 220. The first separation shim 192 may be positioned proximate the inner face 212 of the first body member 210, and the second separation shim 194 may be positioned proximate the inner face 222 of the second body member 220. The first separation shim 192 may be positioned adjacent the first face 182 of the application shim 180, and the second separation shim 194 may be positioned adjacent the second face 184 of the application shim 180.

[0078] As may be best seen in FIG. 12A, the first separation shim 192 includes a plurality of openings. The openings in the first separation shim 192 generally extend through the first separation shim 192. For clarity, only openings 192a-c are labeled in FIG. 12A. When assembled into the nozzle, the openings in the first separation shim 192 are configured to receive the first fluid therethrough. With reference back to FIG. 9 and FIG. 10 for greater understanding, opening 192a fluidly communicates with slot 186b in the application shim 180 and passageway 116a, opening 192b fluidly communicates with slot 186d in the application shim 180 and passageway 116b, and opening 192c fluidly communicates with slot 186f in the application shim 180 and passageway 116c. As will now be appreciated, the openings in the first separation shim 192 are generally in fluid communication with the first fluid channel 112 and receive the first fluid therethrough. Moreover, each opening in the first separation shim 192 is configured to deliver a discrete stream of the first fluid to corresponding slots of the application shim 180 along the first face 182 of the application shim 180.

[0079] In a similar manner, as may be best seen in FIG. 12B, the second separation shim 194 includes a plurality of openings. The openings in the second separation shim 194 generally extend through the second separation shim 194. For clarity, only openings 194a-c are labeled in FIG. 12B. When assembled into the nozzle, the openings in the second separation shim 194 are configured to receive the second fluid therethrough. With reference back to FIG. 9 and FIG. 10 for greater understanding, opening 194a fluidly communicates with slot 186a in the application shim 180 and passageway 126a, opening 194b fluidly communicates with slot 186c in the application shim 180 and passageway 126b, and opening 194c fluidly communicates with slot 186e in the application shim 180 and passageway 126c. As will now be appreciated, the openings in the second separation shim 194 are generally in fluid communication with the second fluid channel 122 and receive the second fluid therethrough. Moreover, each opening in the second separation shim 194 is configured to deliver a discrete stream of the second fluid to corresponding slots of the application shim 180 along the second face 184 of the application shim 180. [0080] It should be noted that the illustrations and descriptions of the examples shown in the figures are for exemplary purposes only, and should not be construed as limiting the disclosure. One skilled in the art will appreciate that the present disclosure contemplates various examples. Additionally, it should be understood that the concepts described above with the above-described examples may be employed alone or in combination with any of the other examples described above. It should further be appreciated that the various alternative examples described above with respect to one illustrated example can apply to all examples as described herein, unless otherwise indicated. While the above-described nozzles, applicators, and dispensing systems are described with reference to fluids, it is to be understood that a wide variety of fluids and that, in addition or alternatively thereto, a wide variety of materials can likewise be used.

[0081] Unless explicitly stated otherwise, each numerical value and range should be interpreted as being approximate as if the word “about,” “approximately,” or “substantially” preceded the value or range. The terms “about,” “approximately,” and “substantially” can be understood as describing a range that is within 15 percent of a specified value unless otherwise stated.

[0082] Conditional language used herein, such as, among others, “can,” “could,” “might,” “may,” “e.g.,” and the like, unless specifically stated otherwise, or otherwise understood within the context as used, is generally intended to convey that certain examples include, while other examples do not include, certain features, elements, and/or steps. Thus, such conditional language is not generally intended to imply that features, elements, and/or steps are in any way required for one or more examples or that one or more examples necessarily include these features, elements and/or steps. The terms “comprising,” “including,” “having,” and the like are synonymous and are used inclusively, in an open-ended fashion, and do not exclude additional elements, features, acts, operations, and so forth.

[0083] While certain examples have been described, these examples have been presented by way of example only and are not intended to limit the scope of the inventions disclosed herein. Thus, nothing in the foregoing description is intended to imply that any particular feature, characteristic, step, module, or block is necessary or indispensable. Indeed, the novel methods and systems described herein may be embodied in a variety of other forms; furthermore, various omissions, substitutions, and changes in the form of the methods and systems described herein may be made without departing from the spirit of the inventions disclosed herein. The accompanying claims and their equivalents are intended to cover such forms or modifications as would fall within the scope and spirit of certain of the inventions disclosed herein.

[0084] It should be understood that the steps of the exemplary methods set forth herein are not necessarily required to be performed in the order described, and the order of the steps of such methods should be understood to be merely exemplary. Likewise, additional steps may be included in such methods, and certain steps may be omitted or combined, in methods consistent with various examples of the present invention.

[0085] Although the elements in the following method claims, if any, are recited in a particular sequence with corresponding labeling, unless the claim recitations otherwise imply a particular sequence for implementing some or all of those elements, those elements are not necessarily intended to be limited to being implemented in that particular sequence.

[0086] It will be understood that reference herein to “a” or “one” to describe a feature such as a component or step does not foreclose additional features or multiples of the feature.

For instance, reference to a device having or defining “one” of a feature does not preclude the device from having or defining more than one of the feature, as long as the device has or defines at least one of the feature. Similarly, reference herein to “one of’ a plurality of features does not foreclose the invention from including two or more, up to all, of the features. For instance, reference to a device having or defining “one of a X and Y” does not foreclose the device from having both the X and Y.

Claims

What is Claimed:

1. A nozzle for an adhesive dispensing system, the nozzle defining: a first adhesive inlet in fluid communication with a first fluid channel, the first adhesive inlet configured to receive a first adhesive; a second adhesive inlet spaced apart from the first adhesive inlet with respect to a first direction, the second adhesive inlet in fluid communication with a second fluid channel and configured to receive a second adhesive; a fluid outlet that is elongate along a second direction that is perpendicular to the first direction, the fluid outlet in fluid communication with the first fluid channel along a first side of the fluid outlet and in fluid communication with the second fluid channel along a second side of the fluid outlet, the fluid outlet configured to dispense the first and second adhesives therefrom; a first air inlet in fluid communication with a first air channel, the first air inlet configured to receive a first stream of air; and a first air outlet in fluid communication with the first air channel, the first air outlet positioned proximate the fluid outlet and configured to direct the first stream of air toward the first and second adhesives as the first and second adhesives are dispensed from the fluid outlet.

2. The nozzle of claim 1, wherein the fluid outlet is configured to dispense discrete and separate streams of the first adhesive and the second adhesive therefrom.

3. The nozzle of claim 1, wherein the fluid outlet is divided into at least one first outlet slot, and at least one second outlet slot, different from the at least one first outlet slot, the at least one first outlet slot configured to receive the first adhesive from the first fluid channel and dispense a first stream of the first adhesive, and the at least one second outlet slot being configured to receive the second adhesive from the from the second fluid channel and dispense a second stream of the second adhesive, separate from the first stream of the first adhesive.

4. The nozzle of claim 1 , wherein: the fluid outlet is divided into a first set of outlet slots and a second set of outlet slots different from the first set of outlet slots; the first set of outlet slots are in fluid communication with the first fluid channel and are configured to receive the first adhesive therethrough, each outlet slot of the first set of outlet slots configured to dispense a discrete stream of the first adhesive therefrom; and the second set of slots are in fluid communication with the second fluid channel and are configured to receive the second fluid therethrough, each outlet slot of the second set of outlet slots configured to dispense a discrete stream of the second adhesive therefrom.

5. The nozzle of claim 4, wherein individual ones of the outlet slots in the first set are disposed between outlet slots of the second set.

6. The nozzle of claim 4, further comprising an application shim including a first face and an opposite second face, the application shim at least partially disposed between the first and second fluid channels and including a plurality of divider walls that extend from the first face to the second face thereof and divide the fluid outlet into the first and second sets of outlet slots.

7. The nozzle of claim 6, further comprising: a first separation shim positioned adjacent the first face of the application shim, the first separation shim including a plurality of openings in fluid communication with the first fluid channel and configured to receive the first adhesive therethrough; and a second separation shim spaced apart from the first separation shim and positioned adjacent the second face of the application shim, the second separation shim including a plurality of openings in fluid communication with the second fluid channel and configured to receive the second adhesive therethrough.

8. The nozzle of claim 2, wherein the nozzle body includes first and second body members that are offset from one another along the first direction, the first body member defining the first adhesive inlet and at least a portion of the first fluid channel, and the second body member defining the second adhesive inlet and at least a portion of the second fluid channel.

9. The nozzle of claim 8, wherein the nozzle body includes a first air block positioned proximate the first body member, wherein at least a portion of the first air channel is defined between the first body member and the first air block.

10. The nozzle of claim 1, further comprising: a second air inlet spaced apart from the first air inlet with respect to the first direction and in fluid communication with a second air channel, the second air inlet configured to receive a second stream of air; and a second air outlet in fluid communication with the second air channel, the second air outlet positioned proximate the fluid outlet and configured to direct the second stream of air toward the first and second adhesives as the first and second adhesives are dispensed from the fluid outlet; wherein the first air outlet is positioned proximate the first side of the fluid outlet and the second air outlet is positioned proximate the second side of the fluid outlet.

11. An applicator of a dispensing system, the applicator comprising: a manifold; and the nozzle of claim 1 operatively connected to the manifold, wherein the manifold is configured to communicate the first adhesive to the first adhesive inlet, and the second adhesive to the second adhesive inlet.

12. A hotmelt applicator, comprising: a manifold configured to receive a first hotmelt, and a second hotmelt; and a nozzle supported relative to the manifold, the nozzle defining: a first fluid inlet configured to receive the first hotmelt from the hotmelt applicator; a second fluid inlet configured to receive the second hotmelt from the hotmelt applicator; a fluid outlet divided into at least one first outlet slot and at least one second outlet slot, the at least one first outlet slot in fluid communication with the first fluid inlet and configured to dispense a first stream of the first hotmelt therefrom, and the at least one second outlet slot in fluid communication with the second fluid inlet and configured to dispense a second stream of the second hotmelt therefrom, the second stream of the second hotmelt separate from the first stream of the first hotmelt; a first air inlet configured to receive a first stream of air from the manifold; and a first air outlet configured to direct the first stream of air toward the first and second hotmelts as the first and second hotmelts are respectively dispensed from the at least first outlet slot and the at least one second outlet slot.

13. The hotmelt applicator of claim 12, wherein the first fluid inlet is in fluid communication with a first side of the fluid outlet, the second fluid inlet is in fluid communication with a second side of the fluid outlet, opposite the first side with respect to a first direction, and wherein the fluid outlet is elongate along a direction, perpendicular to the first direction.

14. The hotmelt applicator of claim 12, wherein the at least one first outlet slot comprises a first set of outlet slots and the at least one second outlet slot outlet slot comprises a second set of outlet slots, and wherein: the first set of outlet slots are in fluid communication with the first fluid inlet and are configured to receive the first hotmelt therethrough, each outlet slot of the first set of outlet slots configured to dispense a discrete stream of the first hotmelt therefrom; and the second set of slots are in fluid communication with the second fluid inlet and are configured to receive the second hotmelt therethrough, each outlet slot of the second set of outlet slots configured to dispense a discrete stream of the second hotmelt therefrom.

15. The hotmelt applicator of claim 14, wherein individual ones of the outlet slots in the first set are disposed between outlet slots of the second set.

16. The hotmelt applicator of claim 14, further comprising an application shim including a first face and an opposite second face, the application shim at least partially disposed between the first and second fluid inlets and including a plurality of divider walls that extend from the first face to the second face thereof and divide the fluid outlet into the first and second sets of outlet slots.

17. A method of using a nozzle of a dispensing system, the method comprising: supplying a first adhesive to a first fluid inlet of the nozzle; supplying a second adhesive to a second fluid inlet of the nozzle spaced apart from the first fluid inlet along a first direction; supplying a first stream of air to a first air inlet of the nozzle; receiving the first adhesive along a first side of a fluid outlet of the nozzle that is elongate along a second direction that is perpendicular to the first direction; receiving the second adhesive along a second side of the fluid outlet; dispensing the first and second adhesives from the fluid outlet; and as the first and second adhesives are dispensed from the fluid outlet, directing the first stream of air from a first air outlet and toward the first and second adhesives.

18. The method of claim 17, wherein the first and second adhesives are different materials.

19. The method of claim 17, wherein the dispensing step includes at least one of: dispensing the first adhesive at a different flow rate than the second adhesive; dispensing the first adhesive in a different amount than the second adhesive; and dispensing the first adhesive to a portion of a substrate different than the second adhesive.

20. The method of claim 17, wherein the fluid outlet is divided into a first set of outlet slots and a second set of outlet slots different from the first set of outlet slots, and wherein the dispensing step includes: dispensing a discrete stream of the first adhesive from each outlet slot of the first set of outlets slots; and dispensing a discrete stream of the second adhesive from each outlet slot of the second set of outlet slots.

21. The method of claim 17, wherein the dispensing step includes dispensing the first and second adhesives from the fluid outlet onto a substrate.

22. The method of claim 21, wherein the substrate is a substrate of a diaper.