200844289 九、發明說明 【發明所屬之技術領域】 本發明有關一噴射式織物染色機用噴嘴。 【先前技術】 織物一般係在高速噴射式染色機中染色。此等機器包 含一系列以連通順序配置之管子、導管及室，以形成一循 環式織物行進路徑。組構成一循環式繩索之織物環繞著該 路徑通過，且係沿著被引導至該繩索上的一或多道高壓流 體（染液）噴流所推進。 該等流體噴流係藉由一噴嘴所施加。該噴嘴包含一管 狀孔口，該織物繩索通過該孔口。該孔口的壁面中之一或 多個間隙在高壓下將該等噴流引導於該孔口內側之繩索上 ’並將其沿著該行進路徑推進。 此一噴嘴之該設計可爲具挑戰性的。一方面，該噴嘴 不應佔有太多空間，因這將在該機器內佔用太多流體體積 及影響該液劑比率（染液的體積對需要產生想要之染色結 果的織物之重量/數量的比率）。在另一方面，該噴嘴應 是能夠運送染液之一充分強大噴流及足夠大的體積，用於 染料之均勻穿透至該織物及交換進入該織物。 傳統上，該噴嘴孔口之橫截面係圓形的。該孔口係安 裝在一噴嘴殻體中，該殼體界定一環繞著該孔口之室。該 殼體具有一入口管，染液係經過該入口管供給至該室，該 室與該噴嘴間隙相通，以運送該流體之噴流經過該孔口壁 -4- 200844289 面及至該織物上。 爲達成一均勻之染色效果，該織物繩索應於染色期間 寬度打開，且每次其通過該噴嘴即變化位置係想要的。這 使染液能有效、且均勻施加於該織物上及進入該織物。然 而，一圓形之噴嘴傾向於擠壓及壓縮通過該噴嘴之織物， 而非允許該織物橫向地延伸。 具有橢圓形橫截面之噴嘴已被提出，以於該寬度方向 中提供一修長範圍，當該流體噴射於其上時，該織物能在 該寬度方向中展開。然而，其已發現一橢圓形狀仍然產生 該織物將將壓扁及壓縮之趨勢。 該染液經由該噴嘴殼體的側面中之入口管運送至該噴 嘴間隙，亦對離開該噴嘴間隙之不同部份的流體給與不同 之流體壓力。這亦可促成該染色中之不均勻性。 【發明內容】 據此，本發明之第一態樣係針對一噴射式織物染色機 用噴嘴總成，該噴嘴總成包含：一管狀噴嘴構件’織物行 經該噴嘴構件，該噴嘴構件藉由四側壁所界定，且具有一 平行四邊形的形狀之橫截面；及在該噴嘴構件的第一側壁 中之噴嘴間隙，流體之噴流可經過該噴嘴間隙施加至該噴 嘴構件中之織物，以沿著一行進路徑推進該織物。 一具有平行四邊形的橫截面之噴嘴構件提供一空間， 該織物可藉著所施加流體之噴流的力量翻騰及散開進入該 空間。這樣一來，打開該織物允許達成更均勻之染色效果 -5- 200844289 ，且亦減少該織物之熱壓預縮，以致發生更少之摺皺。能 採用任何平行四邊形，但一直角平行四邊形可爲更方便製 造，且對於該攤開之織物，可發現長方形比正方形提供一 更合適之空間。因此，於一些具體實施例中，該噴嘴構件 可具有一實質上長方形之橫截面。 該噴嘴構件的一織物入口端部可具有一沿著該織物行 進路徑之方向減少的橫截面。這使該織物成漏斗狀通過該 噴嘴間隙，且亦減少該織物將變得被捕住在該噴嘴構件之 邊緣的機會。 該噴嘴總成可另包含一外部殼體’該噴嘴構件係安裝 在該外部殼體內，該外部殼體界定一環繞著該噴嘴總成之 室，流體能由該室傳送至該噴嘴間隙。 該外部殼體可具有一流體入口管’流體能經過該入口 管傳送至該室。於一些具體實施例中’該流體入口管可爲 與該噴嘴構件的第一側壁對齊。這對於由該入口管至該噴 嘴間隙的流體提供該最短之路徑’故在該室內需要一較小 之流體體積。然而’此種直接路徑可導致經過該噴嘴間隙 的一不均勻之噴流，而給與不均勻之染色。因此，該噴嘴 總成可另包含一安裝在該外部殼體內側之偏向板’以中斷 一由該入口管至該噴嘴間隙之直接流體路徑。一偏向板分 散該進來之流體’以致其更平均地分佈越過該噴嘴間隙。 於一些範例中，該外部殼體可爲圓柱形。這使其易於 製造。 於一些具體實施例中，該噴嘴可另包含一流體分流器 -6- 200844289 ’其組構成攔截經過該噴嘴間隙所施加之流體噴流的一部 份，並由一方向將該部份流體噴流引導至該噴嘴構件中之 織物上，該方向與該流體噴流的未攔截部份之方向不同。 第二流體施加方向能提供一更均勻之染色效果。該流體分 流器可被組構成將該流體噴流的被攔截部份引導至該織物 的一部份上，此織物部份實質上與施加該流體噴流的未攔 截部份之織物部份相向。 該流體分流器可包含該噴嘴構件之由鄰接該第一側壁 的側壁朝內地隔開的內壁，以將該噴嘴間隙分成二部份； 及一刃片’其延伸在該第一側壁及該內側壁之間，以在該 內側壁遠離該第一側壁的一部份下方引導該流體噴流之被 攔截部份。 於一些具體實施例中，該噴嘴總成可另包含一由該噴 嘴構件的流體出口端部延伸之導引管，該導引管具有一橫 截面，該橫截面具有一平行四邊形之形狀，該橫截面沿著 該織物行進路徑之方向增加。該導引管提供一延伸之空間 ，該織物可在該空間中散開，進一步促成一改善之染色效 果。該導引管可終止在一敞開之扇形導槽部份中。 該噴嘴總成可被組構成安裝在一噴射式織物染色機內 ’使得該噴嘴構件的第一側壁係比其餘三側壁較低。此配 置允許該流體之噴流將施加至該織物之底側，以致該織物 被往上推’且接著在重力之下掉落，這進一步增強該織物 之向上打開。 本發明之第二態樣係針對一噴射式織物染色機，其包 200844289 含一根據該第一態樣之噴嘴總成。該噴嘴總成可被安裝在 該噴射式織物染色機內，使得該噴嘴構件的第一側壁係比 該其餘三側壁較低。 【實施方式】 圖1顯示一傳統噴射式織物染色機之範例的側視圖。 該機器1包含一圓柱形主室1 1及一較小直徑之行進管1 3 ，該行進管配置在該主室11下方及連接至該主室11之每 一端部。該主室1 1及該行進管1 3藉此形成一連續之包封 路徑，當被帶入與染液或另一處理流體造成接觸時，織物 之循環式繩索能圍繞該路徑循環。於循環繞著該機器的一 指定處理時間期間，該織物被染色或以別的方式處理。 該織物繩索係藉由一噴嘴總成1 2沿著該行進路徑環 繞著該機器推進，該噴嘴總成1 2位於該主室1 1的一端部 ，並在至該行進管1 3之入口。該噴嘴總成傳統上包含一 管狀噴嘴構件，該織物通過該噴嘴構件（藉此該噴嘴構件 形成該織物行進路徑的一部份）。高壓流體、諸如染液或 其他處理流體之噴流經過該噴嘴構件的側壁中之間隙被引 導至該織物上，該流體之壓力沿著其路徑推動該織物。可 靠近該噴嘴總成1 2之入口提供一轉動滾筒，以由該主室 1 1將織物給入該管狀噴嘴構件。 圖2顯示根據本發明之具體實施例的噴嘴總成之外部 的透視圖，其可被使用在一噴射式織物染色機中，譬如一 噴射式織物染色機，諸如在圖1所顯示者。 -8- 200844289 該噴嘴總成1 0包含一連接至導引管3之噴嘴零件2。 該噴嘴零件2具有一中心孔口，該孔口延伸經過該噴嘴零 件（看圖3 )，並與該導引管3相通，以形成一延伸之管 狀孔口。當倂入一噴射式織物染色機時，該延伸之管狀孔 口形成用於織物繩索之連續行進路徑的一部份，該織物繩 索通過該管狀孔口。圖2中之箭頭Τ指示織物經過該噴嘴 總成之行進方向。 圖3顯示該噴嘴總成1 0的噴嘴零件2之內部的一切 開透視圖。該噴嘴零件2包含一管狀噴嘴構件2 3，其形成 經過該噴嘴零件2之中心孔口。該噴嘴構件23係由四側 壁所形成配置該四側壁，使得該噴嘴構件23具有一實質 上係長方形之橫截面。圖3所示者係第一側壁2 6 A、相向 於該第一側壁之第二側壁26B、及接合該第一與第二側壁 之第三側壁2 6 C。相向於該第三側壁之第四側壁係於該圖 面中切開，且因此看不見。該等側壁由該噴嘴構件2 3的 一織物入口端部2 9延伸至該噴嘴構件2 3的一織物出口端 部3 0。再者，該箭頭T顯示織物由該織物入口端部29至 該織物出口端部3 0經過該噴嘴構件2 3之行進方向。於此 範例中，該等側壁2 6向外張開朝向該織物入口端部2 9， 以致該噴嘴構件23之橫截面沿著織物行進之方向減少。 這有助於將該織物繩索送入該噴嘴構件，及減少該織物捉 住該噴嘴構件之邊緣的風險，但係可有可無的。 一噴嘴間隙24係形成在該噴嘴構件23之第一側壁 26A中。於此範例中，該噴嘴間隙24係一延伸越過該第 200844289 一側壁之寬度的凹槽，及界定於二平行的傾斜板3 1 A、 3 1 B之間，以致該間隙24係沿著該噴嘴構件23之軸心呈 某一角度。如此，由該間隙2 4所噴射之流體係實質上沿 著織物行進之方向引導，且藉此於該噴嘴構件23中推進 織物係沿著該織物行進路徑在一向前之方向中。 流體係在該噴嘴構件2 3外側由一流體室3 3運送經過 該噴嘴間隙24。一外部殻體或殻件22係提供環繞著該噴 嘴構件23，該噴嘴構件係安裝在該外部殻體22內。該外 部殻體22及該噴嘴構件23間之空隙形成該室33。於此範 例中，該外部殼體22係圓柱形，於該噴嘴構件23具有其 長方形橫截面之平面中具有一圓形之橫截面。如與一正方 形或長方形之外部殼體作比較，外部殼體之此形狀提供用 以易於製造，但不排除其他形狀。 該外部殼體22具有一通入其側壁之流體入口管2 1， 流體經過該入口管進入該室3 3，用於運送至該噴嘴間隙 24。該流體入口管2 1係可連接至該織物染色機之流體循 環管道系統，用於藉由該管道系統中之幫浦將流體供給至 該入口管。該流體入口管21可被定位在該外部殼體22上 之任何位置。然而，於所示範例中，定位該流體入口管2 1 ’以致其係與該噴嘴構件23之第一側壁26A對齊，該噴 嘴間隙24係位於該第一側壁中。換句話說，該流體入口 管21係最接近至該第一側壁26A，且實質上正交於該第 —側壁2 6 A。 以此配置，由該流體入口管21進入該室3 2之流體能 -10- 200844289 馬上湧出經過該噴嘴間隙2 4，這減少必需存在於該室3 2 中用於運送流體經過該噴嘴間隙24的流體體積之大小。 這於減少該織物染色機之液劑量（用於令人滿意的染色結 果之每一重量的織物所需之染液體積）可爲有益的。然而 ，其可發現此一由該流體入口管2 1至該噴嘴間隙24之直 接路徑不會越過該噴嘴間隙24給與一均勻之流體分佈， 導致一不均勻之流體噴流。爲處理此問題，可提供一偏向 板2 8。此偏向板係安裝至該外部殼體22，剛好超過該流 體入口管21之嘴部，並中斷該流體入口管21及該噴嘴間 隙24間之直接路徑，以便在其抵達該噴嘴間隙24之前重 新分配該流體。該偏向板2 8可爲相對該進來之流體凸出 ，以提供較少之阻抗。 於圖3中，該噴嘴總成2係顯示爲在一角度傾斜，使 得經過該噴嘴構件23之織物路徑下坡地傾斜。可組構該 噴嘴總成2，使得其能在一往下傾斜角度被安裝在一織物 染色機內。亦配置該噴嘴總成，使得該噴嘴構件23之具 有該噴嘴間隙24的第一側壁26A係該四側壁26之最低者 。當像這樣配置時，來自該噴嘴間隙24之流體噴流係施 加至該織物繩索之底側。這迫使該織物繩索向上地朝向該 相向側壁26B。此向上及朝外移動離開該流體噴流，與該 織物隨後當其移動通過該流體噴流時在重力之下的落回結 合，允許該織物本身翻騰、散開、及重排。等噴嘴元件23 之長方形形狀容納該織物繩索之此向上打開，以致該織物 之熱壓預縮係減少，且可達成一更均勻之染色效果。 -11 - 200844289 儘管藉由此一配置提供該等優點，其可發現施加該流 體至該織物繩索之僅只一側面產生不均勻之染色。爲處理 此問題，該噴嘴總成可另包含一流體分流配置’以當該織 物繩索通過該噴嘴構件23時，將部份該流體噴流引導至 該織物繩索之一不同側面。特別地是，部份噴流可被傳送 至該織物繩索之相向側面，而該等噴嘴間隙2 4直接施加 流體至該側面。 這可藉由攔截噴射經過該噴嘴間隙24之流體部份及 使其改方向遠離該織物繩索之最近、底側及至該繩索之另 一部份上所達成。可使用任何合適之結構，以達成此目的 •，一範例係顯示在圖3中。該噴嘴構件23以一內壁25之 形式包含一額外的壁面部份，該內壁實質上配置成平行於 毗連該第一側壁26A之第三側壁26C，並由該第三側壁朝 內地隔開。該內壁2 5延伸越過該側壁2 6 C，以便在該第 一側壁26A中抵達該噴嘴間隙24。該噴嘴間隙24係藉此 於其整個高度分成二部份。通過該間隙24的一主要部份 之流體係直接施加至該噴嘴構件23中之織物。通過該間 隙的另一部份之流體進入該內壁2 5及該第三側壁2 6 C間 之空間，且因此由該噴嘴構件23中之織物分開。 一可爲彎曲及扭曲以更好引導及輸送流體之刃片27 係配置於該內壁25及該第三側壁26C之間，以致其在下 游由該噴嘴間隙2 4延伸越過該二壁面間之空間。該刃片 相對織物之行進方向往下傾斜，以在該內壁2 5之下側面 下方引導流體往下進入該空間，並在一接近該第二側壁 -12- 200844289 26B之相向於該第一側壁26A的位置。因此，流體係實質 上相向於該織物之側面輸送至該噴嘴構件23中之織物上 ，該側面承接引導自該噴嘴間隙24之流體。 圖4更詳細地顯示該內壁25及該刃片27。注意該內 壁25之前緣的朝外曲率；這減少進入該噴嘴構件23的織 物之擱淺在該內壁25上。 返回至圖3，該噴嘴總成1 0亦包含一連接至該噴嘴構 件23的織物出口端部30之導引管3。該導引管3係由四 側壁所形成，以致其具有一長方形之橫截面。該等側壁係 配置成向外張開，以致該橫截面沿著織物行進之方向增加 。該導引管因此提供一額外、較大之長方形體積，該織物 能在所施加流體之噴流的作用下於該體積中擴展及散開。 在該導引管3之下游端部，提供一末端導槽部份3 2， 其中無一上側壁，且該剩餘壁面之至少較低者繼續向外張 開。該末端部份如此提供一扇形或鏟刀形導槽，其在該織 物被傳送至該染色機之下一零件之前容置該攤開之織物繩 索，如此延伸該織物行進路徑的部份之長度，該織物在此 路徑上不會熱壓預縮。 圖2、3及4所示之噴嘴總成2係僅只本發明之一範 例。可使用與那些所示者不同形狀及組構設計之零組件施 ί了本發明。如想要，可省略或包含該偏向板2 8、該流體分 流器、該外部殻體22、及導引管3，並可爲與那些所示者 具有不同形狀之設計，而仍能施行其敘述之功能。該噴嘴 構件2 3亦可具有一正方形之橫截面。在此中，“長方形 -13- 200844289 ”一詞之使用係意欲涵括“正方”之特定範例。亦可使用 非直角之平行四邊形的形狀；“長方形”係亦意欲包含這 些形狀。 【圖式簡單說明】 用於本發明之較佳理解及顯示如何實施本發明，現在 可參考所附圖面作爲範例，其中·· 圖1顯示一傳統噴射式織物染色機之側視圖，在該染 色機內能使用一根據本發明之噴嘴總成； 圖2顯示根據本發明之具體實施例的噴嘴總成之外部 透視圖； 圖3顯示圖2之噴嘴總成的一部份之切開內部透視圖 :及 圖4顯示一倂入圖2的噴嘴總成中之流體分流器的透 視圖。 【主要元件符號說明】 1 :噴射式織物染色機 2 :噴嘴零件 3 :導引管 1 0 :噴嘴總成 Π :主室 1 2 :噴嘴總成 1 3 :行進管 -14- 200844289 2 1 :流體入口管 22 :外部殼體 2 3 :噴嘴構件 24 :噴嘴間隙 25 :內壁 26 :側壁 26A :第一側壁 26B :第二側壁 26C :第三側壁 27 :刃片 2 8 :偏向板 29 :織物入口端部 3 0 :織物出口端部 3 1 A :傾斜板 3 1 B :傾斜板 3 2 :扇形導槽 3 3 :流體室 -15-200844289 IX. Description of the Invention [Technical Field of the Invention] The present invention relates to a nozzle for a jet type dyeing machine. [Prior Art] Fabrics are generally dyed in a high speed jet dyeing machine. These machines include a series of tubes, conduits and chambers arranged in a connected sequence to form a circulated fabric travel path. The fabric constituting a circulating rope passes around the path and is propelled along one or more high pressure fluid (dye) jets directed onto the rope. The fluid jets are applied by a nozzle. The nozzle includes a tubular aperture through which the fabric rope passes. One or more of the walls of the orifice directs the jets onto the rope inside the orifice at high pressure and advances along the path of travel. This design of this nozzle can be challenging. On the one hand, the nozzle should not occupy too much space, as this would take up too much fluid volume in the machine and affect the liquid agent ratio (the volume of the dye liquor to the weight/quantity of the fabric required to produce the desired dyed result) ratio). In another aspect, the nozzle should be capable of transporting one of the dye liquors with a sufficiently strong jet and a sufficiently large volume for uniform penetration of the dye into the fabric and exchange into the fabric. Traditionally, the cross section of the nozzle orifice is circular. The orifice is mounted in a nozzle housing that defines a chamber surrounding the orifice. The housing has an inlet tube through which the dye liquor is supplied to the chamber, the chamber being in communication with the nozzle gap to carry a jet of the fluid through the orifice wall -4-200844289 and onto the fabric. To achieve a uniform dyeing effect, the fabric rope should be opened at the width during dyeing and each time it passes through the nozzle, the desired position is desired. This allows the dye liquor to be applied to the fabric efficiently and evenly and into the fabric. However, a circular nozzle tends to squeeze and compress the fabric passing through the nozzle rather than allowing the fabric to extend laterally. A nozzle having an elliptical cross section has been proposed to provide a slender range in the width direction in which the fabric can be deployed when the fluid is sprayed thereon. However, it has been found that an elliptical shape still produces a tendency for the fabric to collapse and compress. The dye liquor is transported to the nozzle gap via an inlet tube in the side of the nozzle housing, and also provides different fluid pressure to fluid exiting different portions of the nozzle gap. This can also contribute to the unevenness in the dyeing. SUMMARY OF THE INVENTION Accordingly, a first aspect of the present invention is directed to a nozzle assembly for a jet fabric dyeing machine, the nozzle assembly comprising: a tubular nozzle member 'a fabric passing through the nozzle member, the nozzle member being four a cross-section defined by the side wall and having a shape of a parallelogram; and a nozzle gap in the first side wall of the nozzle member through which the jet of fluid can be applied to the fabric in the nozzle member for The path of travel advances the fabric. A nozzle member having a cross-section of a parallelogram provides a space through which the fabric can be towed and diffused into the space by the force of the jet of applied fluid. In this way, opening the fabric allows for a more uniform dyeing effect -5 - 200844289 and also reduces the hot shrinkage of the fabric so that less wrinkles occur. Any parallelogram can be used, but the regular parallelogram can be more convenient to manufacture, and for the spread fabric, it can be found that the rectangle provides a more suitable space than the square. Thus, in some embodiments, the nozzle member can have a substantially rectangular cross section. A fabric inlet end of the nozzle member can have a reduced cross-section along the direction of the fabric travel path. This allows the fabric to pass through the nozzle gap in a funnel shape and also reduces the chance that the fabric will become trapped at the edge of the nozzle member. The nozzle assembly can further include an outer housing. The nozzle member is mounted within the outer housing, the outer housing defining a chamber surrounding the nozzle assembly from which fluid can be delivered to the nozzle gap. The outer casing can have a fluid inlet tube through which fluid can be delivered to the chamber. In some embodiments, the fluid inlet tube can be aligned with the first side wall of the nozzle member. This provides the shortest path for the fluid from the inlet tube to the nozzle gap' so a smaller fluid volume is required within the chamber. However, such a direct path can result in a non-uniform jet through the nozzle gap, giving uneven dyeing. Accordingly, the nozzle assembly can further include a deflecting plate mounted on the inside of the outer casing to interrupt a direct fluid path from the inlet pipe to the nozzle gap. A deflecting plate disperses the incoming fluid so that it more evenly distributes across the nozzle gap. In some examples, the outer casing can be cylindrical. This makes it easy to manufacture. In some embodiments, the nozzle may further comprise a fluid splitter-6- 200844289 'the group of components intercepting a portion of the fluid jet applied through the nozzle gap and directing the portion of the fluid jet from a direction To the fabric in the nozzle member, the direction is different from the direction of the uninterrupted portion of the fluid jet. The second fluid application direction provides a more uniform dyeing effect. The fluid splitter can be configured to direct the intercepted portion of the fluid jet onto a portion of the fabric that is substantially opposite the portion of the fabric from which the unblocked portion of the fluid jet is applied. The fluid diverter may include an inner wall of the nozzle member spaced inwardly from a side wall adjacent the first side wall to divide the nozzle gap into two portions; and a blade 'extending the first side wall and the Between the inner side walls, the intercepted portion of the fluid jet is directed below a portion of the inner side wall remote from the first side wall. In some embodiments, the nozzle assembly can further include a guide tube extending from a fluid outlet end of the nozzle member, the guide tube having a cross section having a parallelogram shape, The cross section increases in the direction of the travel path of the fabric. The guide tube provides an extended space in which the fabric can be spread, further contributing to an improved dyeing effect. The guide tube can terminate in an open sector of the guide channel. The nozzle assembly can be assembled to fit within a jet fabric dyeing machine such that the first side wall of the nozzle member is lower than the remaining three side walls. This configuration allows the jet of fluid to be applied to the underside of the fabric such that the fabric is pushed up' and then falls under gravity, which further enhances the upward opening of the fabric. A second aspect of the invention is directed to a jet fabric dyeing machine, package 200844289 comprising a nozzle assembly in accordance with the first aspect. The nozzle assembly can be mounted within the jet fabric dyeing machine such that the first side wall of the nozzle member is lower than the remaining three side walls. [Embodiment] Fig. 1 shows a side view of an example of a conventional jet type fabric dyeing machine. The machine 1 includes a cylindrical main chamber 1 1 and a smaller diameter traveling tube 13 disposed below the main chamber 11 and connected to each end of the main chamber 11. The main chamber 1 1 and the travel tube 13 thereby form a continuous enveloping path around which the recycled rope of the fabric can circulate when brought into contact with the dye liquor or another treatment fluid. The fabric is dyed or otherwise processed during a specified processing time of the cycle around the machine. The fabric rope is advanced around the machine by a nozzle assembly 12 along the travel path, the nozzle assembly 12 being located at one end of the main chamber 11 and at the entrance to the travel tube 13. The nozzle assembly conventionally includes a tubular nozzle member through which the fabric passes (by which the nozzle member forms a portion of the fabric travel path). A high pressure fluid, such as a dye liquor or other treatment fluid jet, is directed onto the fabric through a gap in the sidewall of the nozzle member, the pressure of the fluid propelling the fabric along its path. A rotating drum can be provided adjacent the inlet of the nozzle assembly 12 to feed fabric into the tubular nozzle member from the main chamber 11. Figure 2 shows a perspective view of the exterior of a nozzle assembly in accordance with a particular embodiment of the present invention, which may be used in a jet fabric dyeing machine, such as a jet fabric dyeing machine, such as that shown in Figure 1. -8- 200844289 The nozzle assembly 10 includes a nozzle part 2 connected to the guide tube 3. The nozzle member 2 has a central aperture extending through the nozzle member (see Figure 3) and communicating with the guide tube 3 to form an elongated tubular aperture. The elongated tubular aperture forms a portion of the continuous path of travel for the fabric rope as it breaks into a jet fabric dyeing machine through which the fabric rope passes. The arrow 图 in Figure 2 indicates the direction of travel of the fabric through the nozzle assembly. Figure 3 shows an open perspective view of the interior of the nozzle part 2 of the nozzle assembly 10. The nozzle part 2 comprises a tubular nozzle member 23 which forms a central opening through the nozzle part 2. The nozzle member 23 is formed by four side walls to define the four side walls such that the nozzle member 23 has a substantially rectangular cross section. 3 is a first side wall 26A, a second side wall 26B facing the first side wall, and a third side wall 62C joining the first and second side walls. The fourth side wall facing the third side wall is cut in the plane and is therefore invisible. The side walls extend from a fabric inlet end 29 of the nozzle member 23 to a fabric outlet end 30 of the nozzle member 23. Again, the arrow T shows the direction of travel of the fabric from the fabric entry end 29 to the fabric exit end 30 through the nozzle member 23. In this example, the side walls 26 are flared outwardly toward the fabric inlet end 2 9 such that the cross-section of the nozzle member 23 decreases in the direction of travel of the fabric. This helps to feed the fabric rope into the nozzle member and reduces the risk of the fabric catching the edges of the nozzle member, but is optional. A nozzle gap 24 is formed in the first side wall 26A of the nozzle member 23. In this example, the nozzle gap 24 is a groove extending across the width of a sidewall of the 200844289 and defined between two parallel inclined plates 3 1 A, 3 1 B such that the gap 24 is along the The axis of the nozzle member 23 is at an angle. Thus, the flow system ejected by the gap 24 is directed substantially in the direction in which the fabric travels, and thereby the fabric member is advanced in the nozzle member 23 along the fabric travel path in a forward direction. The flow system is transported through the nozzle gap 24 by a fluid chamber 33 outside the nozzle member 23. An outer casing or casing member 22 is provided around the nozzle member 23, the nozzle member being mounted within the outer casing 22. The space between the outer casing 22 and the nozzle member 23 forms the chamber 33. In this example, the outer casing 22 is cylindrical in shape and has a circular cross section in the plane of the nozzle member 23 having its rectangular cross section. This shape of the outer casing is provided for ease of manufacture, but does not exclude other shapes, as compared to a square or rectangular outer casing. The outer casing 22 has a fluid inlet tube 2 1 leading into its side wall through which fluid enters the chamber 33 for transport to the nozzle gap 24. The fluid inlet tube 21 is coupled to a fluid circulation piping system of the fabric dyeing machine for supplying fluid to the inlet tube by a pump in the piping system. The fluid inlet tube 21 can be positioned anywhere on the outer housing 22. However, in the illustrated example, the fluid inlet tube 2 1 ' is positioned such that it is aligned with the first side wall 26A of the nozzle member 23, the nozzle gap 24 being located in the first side wall. In other words, the fluid inlet tube 21 is closest to the first side wall 26A and substantially orthogonal to the first side wall 26A. With this configuration, the fluid energy -10- 200844289 entering the chamber 32 from the fluid inlet tube 21 immediately rushes through the nozzle gap 24, which reduction must be present in the chamber 3 2 for transporting fluid through the nozzle gap 24 The size of the fluid volume. This can be beneficial in reducing the liquid dose of the fabric dyeing machine (the volume of dye liquor required for each weight of the fabric for satisfactory dyeing results). However, it can be seen that the direct path from the fluid inlet tube 21 to the nozzle gap 24 does not impart a uniform fluid distribution across the nozzle gap 24, resulting in a non-uniform fluid jet. To address this issue, a biasing plate 28 can be provided. The deflecting plate is mounted to the outer casing 22 just beyond the mouth of the fluid inlet pipe 21 and interrupts the direct path between the fluid inlet pipe 21 and the nozzle gap 24 to re-enter before it reaches the nozzle gap 24. Dispensing the fluid. The deflector plate 28 can be convex relative to the incoming fluid to provide less impedance. In Figure 3, the nozzle assembly 2 is shown inclined at an angle such that the fabric path through the nozzle member 23 slopes downhill. The nozzle assembly 2 can be constructed such that it can be mounted in a fabric dyeing machine at an oblique angle. The nozzle assembly is also configured such that the first side wall 26A of the nozzle member 23 having the nozzle gap 24 is the lowest of the four side walls 26. When configured as such, a fluid jet from the nozzle gap 24 is applied to the underside of the fabric rope. This forces the fabric rope upward toward the opposing side walls 26B. This upward and outward movement away from the fluid jet combines with the falling back of the fabric as it moves through the fluid jet, allowing the fabric itself to tumbling, unraveling, and rearranging. The rectangular shape of the nozzle element 23 accommodates the upward opening of the fabric rope so that the shrinkage of the fabric is reduced and a more uniform dyeing effect can be achieved. -11 - 200844289 While providing such advantages by this configuration, it has been found that application of the fluid to only one side of the fabric rope produces uneven dyeing. To address this problem, the nozzle assembly can additionally include a fluid splitting arrangement to direct a portion of the fluid jet to different sides of the fabric rope as the fabric rope passes through the nozzle member 23. In particular, a portion of the jet stream can be delivered to the opposite side of the fabric rope, and the nozzle gaps 24 directly apply fluid to the side. This can be accomplished by intercepting the portion of the fluid that is sprayed through the nozzle gap 24 and redirecting it away from the nearest, bottom side of the fabric rope and to another portion of the rope. Any suitable structure can be used to achieve this purpose. An example is shown in FIG. The nozzle member 23 includes an additional wall portion in the form of an inner wall 25 that is substantially parallel to the third side wall 26C adjoining the first side wall 26A and is spaced inwardly from the third side wall . The inner wall 25 extends over the side wall 26C to reach the nozzle gap 24 in the first side wall 26A. The nozzle gap 24 is divided into two parts by its entire height. A flow system through a major portion of the gap 24 is applied directly to the fabric in the nozzle member 23. Fluid passing through another portion of the gap enters the space between the inner wall 25 and the third side wall 62C and is thus separated by the fabric in the nozzle member 23. A blade 27, which may be bent and twisted to better guide and transport fluid, is disposed between the inner wall 25 and the third side wall 26C such that it extends downstream from the nozzle gap 24 beyond the two wall faces. space. The blade is inclined downward with respect to the direction of travel of the fabric to direct fluid downwardly into the space below the lower side of the inner wall 25, and to face the second side -12-200844289 26B The position of the side wall 26A. Thus, the flow system is substantially delivered to the fabric in the nozzle member 23 opposite the side of the fabric which receives the fluid directed from the nozzle gap 24. Figure 4 shows the inner wall 25 and the blade 27 in more detail. Note the outward curvature of the leading edge of the inner wall 25; this reduces the stranding of the fabric entering the nozzle member 23 on the inner wall 25. Returning to Figure 3, the nozzle assembly 10 also includes a guide tube 3 coupled to the fabric outlet end 30 of the nozzle member 23. The guide tube 3 is formed by four side walls so that it has a rectangular cross section. The side walls are configured to flare outwardly such that the cross-section increases in the direction of travel of the fabric. The guide tube thus provides an additional, larger rectangular volume within which the fabric can expand and disperse under the action of the jet of applied fluid. At the downstream end of the guiding tube 3, an end channel portion 3 2 is provided, wherein there is no upper side wall, and at least the lower of the remaining wall surface continues to open outward. The end portion thus provides a scalloped or blade-shaped guide groove for receiving the spread fabric rope before the fabric is conveyed to a part of the dyeing machine, thus extending a portion of the fabric travel path The length of the fabric does not shrink during pre-shrinking on this path. The nozzle assembly 2 shown in Figures 2, 3 and 4 is only one example of the present invention. The invention may be practiced using components that are different in shape and configuration from those shown. If desired, the deflector plate 28, the fluid shunt, the outer casing 22, and the guide tube 3 may be omitted or included, and may be of a different shape than those shown, while still being capable of performing The function of the narrative. The nozzle member 23 can also have a square cross section. In this context, the use of the term "rectangle -13- 200844289" is intended to encompass a specific example of "square". It is also possible to use a shape of a parallelogram that is not a right angle; the "rectangular" system is also intended to include these shapes. BRIEF DESCRIPTION OF THE DRAWINGS For a better understanding of the present invention and to show how the invention can be practiced, reference is now made to the accompanying drawings, in which: FIG. 1 shows a side view of a conventional jet fabric dyeing machine, A nozzle assembly in accordance with the present invention can be used in a dyeing machine; FIG. 2 shows an external perspective view of a nozzle assembly in accordance with an embodiment of the present invention; and FIG. 3 shows a portion of the nozzle assembly of FIG. Figure: and Figure 4 show a perspective view of a fluid diverter inserted into the nozzle assembly of Figure 2. [Main component symbol description] 1 : Spray fabric dyeing machine 2 : Nozzle part 3 : Guide tube 1 0 : Nozzle assembly Π : Main chamber 1 2 : Nozzle assembly 1 3 : Travel tube-14 - 200844289 2 1 : Fluid inlet pipe 22: outer casing 2 3 : nozzle member 24 : nozzle gap 25 : inner wall 26 : side wall 26A : first side wall 26B : second side wall 26C : third side wall 27 : blade 2 8 : deflecting plate 29 : Fabric inlet end 30: fabric outlet end 3 1 A: sloping plate 3 1 B: sloping plate 3 2 : scalloped channel 3 3 : fluid chamber -15-