JPS5857537B2 - Device for adding liquid chemicals to mobile textile fabrics - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a device for applying liquid chemicals to textile fabrics in which various quibs can be moved, and is particularly suitable for applying finishing agents to textile fabrics.

Therefore, in the following description, the utility of the present invention in finishing textiles will be emphasized.

The fabric is impregnated with a finishing agent, typically comprising an aqueous solution of a finishing chemical, by means of a conventional padder.

According to such a device, the treated fabric will be approximately 7
Contains 0% water.

As a result, a drying operation has to be carried out to drive off excess moisture.

Due to the water content of around 70%, a considerable amount of energy is required to accomplish the necessary drying.

It has been found that, utilizing the present invention, it is possible to apply finishing agents to fabrics using significantly higher concentrations of finishing chemicals in aqueous solutions than was possible with the prior art.

Therefore, the moisture content of the treated fabrics was significantly reduced to approximately half the level previously achieved.

This is a significant and significant improvement in the amount of energy required to dry the fabric.

The aforementioned results are achieved with a device comprising a closed-ended pipe with a plurality of orifices arranged in its longitudinal direction.

A finishing agent is introduced into the open end of the pipe and discharged through the orifice and into the foam surrounding the pipe.

The form is attached by a fixing member having a cylindrical longitudinal section.

The foam provides a thin film of finishing agent on the curved surface of the fastening member.

Under the force of gravity, the film moves to the edge of the cylindrical cross section where the fabric is pulled against the moving past the fixed member.

The direction of movement of the fabric is such that the finishing agent is applied directly to the fabric against the tangent between the fabric and the edge of the cross section.

Thus, the finishing effect is forced into the fabric as it engages the edges.

Referring to the drawings, a manifold is shown including a pipe 10 that is open at one end for receiving a coating containing finishing chemicals and is closed at the other end.

Preferably the fuser is connected to a flow controller (
(not shown) to the manifold.

A rotometer measures the flow rate into the manifold so that the restrictor valve or the rotometer can be adjusted to obtain the correct flow rate for a particular wrapped fabric and the speed at which it passes through the finishing equipment. It is used in

In the preferred embodiment, the manifold is a 11/4 inch stainless steel pipe that is at least as long as the thickness of the fabric being finished.

A plurality of orifices 12 are spaced along the pipe.

For example, orifices with a diameter of 1/16 inch are placed every inch.

The closed end of pipe 10 provides enhanced retrograde pressure to the flow controller.

Thus, each equal amount of finishing agent is ejected from each orifice 12.

Grooves 14 interconnect the orifices 12 to spread the finishing agent along the manifold.

Typically, the miso is about 1/8 inch wide and 0.1 inch deep.

Preferably, the manifold is surrounded by hydrophilic polyurethane foam 16, which absorbs and dissipates the finishing agent jet stream.

Typically, the porosity of the foam is sufficient to allow gravity penetration of the finishing agent, and the overall width of the foam transforms the jet stream from the orifice 12 into a smooth, uniform limb flow. Dense enough to dissipate.

However, any porous material such as felt, metal screen, or wire mesh can be used in place of polyurethane foam to moderate fluid flow.

Deflectors are also used for this purpose.

In the preferred embodiment, the securing member 18 is tightened to the foam 16 and the pipe 10 by a conventional tightening device 20, which also tightens the compressed foam at the connection to act as a gasket. This may cause a seal to form.

In the event of leakage of the aforementioned connection, the indentation 17 will deflect any resulting drippings onto the underlying treated fabric.

The fixation member 18 has a longitudinal cross-section of a cylinder, preferably made of stainless steel, with a half cylinder outside diameter of 141/2 inches and a wall thickness of 0.250 inches.

The fixing member 18 is associated with the form 16 so that as the finishing agent oozes through the form, a thin film 22 of the agent formed flows horizontally over the top and under the force of gravity, the film 22 is formed. moves over the curved surface of the fixation member (which is held on the fixation member by surface tension) towards its longitudinally extending edge 24.

A weave 26 of the fabric is pulled against the edge 24 while being carried by the finishing device in the direction indicated by the arrow.

For convenience of illustration, conventional transportation equipment has been omitted from the drawings.

The direction of movement of the fabric is such that the finishing effect film 22 is applied back to the tangential flow between the fabric and the edge 24.

Edges 24 thus assist in forcing the working agent into the fabric.

The portion of film 22 that extends beyond the edge of woven fabric 26 provides a concentration of finishing agent along the edge portion of edge 24.

The accumulated liquid drips into a reservoir (not shown) from where it is recycled to the flow circulator.

After being treated with finishing agents, the reed is dried and straightened into sticks.

However, because the finishing agent solution applied by this device is at a much higher concentration than that used in conventional finishing appliques, significantly less energy is required to dry the fabric. It is said that

Although the apparatus has been described for treating fabrics with finishing agents, chemical solutions such as dyes, binders, reducing agents, oxidizing agents, etc. can also be applied to this invention.

Additionally, as previously indicated, while the present invention is particularly effective for applying chemical solutions to textiles, the device also applies to other types of moving membranes, such as paper, film, etc. Also suitable for adding liquid chemicals.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a preferred embodiment of the invention, and FIG. 2 is an enlarged cross-sectional view of a manifold comprising a portion of the invention. 10... Pipe, 12... Orifice, 16... Form, 18... Fixed member, 2
2... Edge, 26... Woven fabric.

Claims (1)

Claims: 1. A manifold for receiving and discharging a chemical, the manifold comprising a pipe for receiving the chemical, the pipe having a length for discharging the chemical. having a plurality of spaced apart orifices located in the direction of the manifold, and a predetermined length adjacent the orifices and located along the manifold for receiving and dissipating the jet of chemicals released by the manifold. an immobilization member having a porous material and a curved surface that engages the porous material and terminates in a straight edge, the immobilization member configured to transport chemicals from the porous material to the immobilization member; oriented with respect to the porous material, the chemical moves under the force of gravity along the targeted surface to the edge, and pulls the fabric against the edge, causing the fabric to move with respect to the fixing member. 1. A movable apparatus for applying a liquid chemical to a woven fabric, comprising: means for moving a woven fabric so that the chemical is applied to the woven fabric. 2. The apparatus of claim 1, wherein the manifold includes a longitudinal groove interconnecting the orifices. 3. Apparatus for applying liquid chemicals to a movable woven fabric as claimed in claim 1, wherein said porous material is a foam surrounding said manifold. 4. Apparatus for applying liquid chemicals to a movable woven fabric as claimed in claim 3, wherein said foam is polyurethane. 5. Apparatus for applying liquid chemicals to a movable fabric as claimed in claim 1, characterized in that the fixing member comprises a cylindrical longitudinal section. 6. The apparatus for applying liquid chemicals to a movable woven fabric as claimed in claim 5, wherein the fixing member is a half-cylinder. 7. Apparatus for applying a liquid chemical to a movable woven fabric as claimed in claim 6, wherein the fixing member engages the porous material substantially diametrically opposite the straight edge. 8. The fabric of claim 1, wherein the fabric is moved in one direction and a chemical is added to the fabric to make it damp before the straight edge fabric is engaged. A device for adding limb chemicals to a movable woven fabric. 9. A manifold for receiving and discharging a chemical, the manifold comprising a pipe for receiving the chemical, the pipe having a plurality of longitudinally located intervals for discharging the chemical. a length of porous material surrounding said manifold for receiving and dissipating a jet of chemical emitted by the manifold; and a length of porous material engaging said porous material. A fixing member having a longitudinal cross-section of a cylinder, the fixing member having a longitudinal cross-section of a cylinder, the fixing member having a longitudinal cross-section of a cylinder, wherein the chemical is transported from the porous material to the fixation member and, under the force of gravity, along said spaced surface. oriented with respect to the porous material so as to move up to a straight longitudinal edge, and before the tightened woven fabric is joined to said straight edge with respect to a securing member that pulls the woven fabric against said edge. and means for moving the fabric in a direction such that the chemical is applied to moisten the fabric. 10. The apparatus of claim 9, wherein said manifold includes a longitudinal groove interconnecting said orifices. 11. Apparatus for applying liquid chemicals to a movable woven fabric as claimed in claim 9, wherein the porous material is a polyurethane foam. 12. The method of claim 9, wherein the fixing member is a semi-cylindrical member that engages the porous material in substantially diametrically opposite straight edges. additional equipment. 13. The method of claim 12, wherein the manifold includes longitudinal grooves interconnecting the orifices, and the porous material is polyurethane foam. Liquid chemical addition equipment. 14 said cylinder cross-section engages the porous material along a line substantially parallel to said longitudinal edge of the cross-section, said line being at the top of the cylinder cross-section located between said line and the edge of the cross-section; 2. The chemical agent collects on the cylinder cross-section between the line and the crest and passes over the crest before descending under the force of gravity to the edge. Apparatus for applying liquid chemicals to a movable woven fabric according to claim 9.