摘要:
Continuous process for dyeing a textile thread by impregnation under pressure, followed by fluid extraction. The dye solution is applied to the thread in an impregnation enclosure, the thread then passes into a fluid extraction enclosure under which liquid is recovered to regenerate it and reuse it as dye. A regeneration enclosure is connected to an automatic color analyzer and to a calculation unit controlling the dosing apparatus for colorants.
摘要:
The present invention relates to a process for the continuous dyeing of cellulose fibre yarns with reactive dyes and to an apparatus for carrying out this process.The process essentially comprises steps of impregnating yarn which has been continuously unwound at high speed from one or several supports (1) and rewound onto one or several supports (3) with at least one fibre-reactive dye in aqueous solution and at least one alkaline reagent in aqueous solution, andfixing the dye.The invention can be applied especially in the technical field of dyeing cellulose fibres.
摘要:
A device for expression of yarn, which has a comb (1) for guiding and expressing individual yarns of a layer of yarn. A compressed air blower (2) in line with each interval between two teeth (3) of comb (1) coacts with the comb (1) to cause the expression of excess moisture. The device is more particularly applicable to the field of the textile industry, in particular the field of washing and/or dying yarn.
摘要:
The invention concerns a sealing unit with rollers (7, 8) for the inlet (5) or the outlet of a treatment apparatus traversed by a conveyor belt (6) passing between the rollers, particularly an air and/or steam pressure apparatus. The sealing means between the frame (2) of the unit and the rollers are designed to be reliable, sturdy and easy to maintain. Specifically, they comprise an upper sealing device (29) and a lower sealing device (30), each one of which is in vertical contact with the corresponding roller (7, 8) and with a fixed element (27, 28). Each one of these devices may comprise a base plate (33) with a shaped slippery covering, consisting of a superficial strip (35) made of PTFE on a strip (34) of compressible flexible material. These devices may be removed without removing the rollers (7, 8). The contact means urging the sealing devices may have springs or hydraulic cylinders (31) or pneumatic cylinders.
摘要:
The invention concerns an apparatus for continuous heat treatment of textile thread. The apparatus is designed as a modular unit so that its size may be adapted to each need and treatment parameters adjusted according to its application. The apparatus comprises a conveyor belt (1) transporting thread (13) through a pretreatment chamber (7) and a treatment chamber (8). Each of these chambers (7, 8) comprises one or more enclosure modules (20, 30) containing one or more forced circulation units (21, 31). In the pretreatment chamber (7), each unit (21) causes pretreatment fluid to circulate in a closed circuit. The units (31) in the treatment chamber (8) cause treatment fluid to circulate and may function as an open circuit. Such an apparatus is useful for continuous heat treatment of textile thread, particularly for heat fixing either the physical structure of the thread or dyes.
摘要:
In the crimping process the yarns (1) are introduced continuously into a crimping machine (3) in which they are subjected to a compression which has the effect of crimping them.Before being introduced into the crimping machine (3) the yarns (1) are subjected to a presteaming operation in a chamber (6).Use especially for improving the bulk of the yarns before they are crimped.
摘要:
A heat treatment chamber for textile threads continuously treats the textile threads utilizing forced circulation units of a treatment fluid. The circulation units are these units being crossed consecutively by a conveyor belt that carries a lap of threads. Each circulation unit is provided with a blower and a closed circuit or an open circuit for the treatment fluid (air or steam). A heat exchanger is positioned near the conveyor belt, in such a way that the fluid crosses it and takes the desired temperature immediately before crossing the lap of threads. The heat exchanger can be formed of longitudinal tubes criss-crossed by heating or cooling fluid. Such a chamber is usable either to preheat the threads, to maintain them heated, or to cool them. The forced circulation units can ensure a gradual variation in the temperature of the threads in the same treatment chamber, or can enable a homogeneity to be obtained in a particular portion of the tunnel, by virtue of the communication between at least two forced circulation units that function in open circuit with the surrounding zone.
摘要:
Apparatus with endless screws for forming flat loops of textile yarn.The invention relates to an apparatus having endless screws for forming flat loops of yarn and depositing them on a conveyor belt.The apparatus comprises two endless screws (10 and 11) with parallel axes which are rotatingly driven in opposite directions, two support and guide members (12 and 13) disposed laterally with respect to the screws and two deviating rods (26, 27) equidistant from these screws. These members and these rods serve to carry the loops of yarn, to bring them forward to the vicinity of a conveyor belt (24) and to deposit them on its surface after having previously turned them over.This device is useful to allow the loops of yarn to be immediately turned over without necessitating an intermediate belt to turn them over.
摘要:
Installation including a steaming chamber, a first, upstream cold chamber and a second, downstream cold chamber, with the length of the upstream cold chamber being at least equal to that of the downstream cold chamber. The upstream and downstream cold chambers may be connected by a pressure-equalized pipe. A fan may be provided to extract the stream at the top of the steaming chamber and reinject it, after reheating by a heating element, into a perforated steaming box from which jets of steam issue below the conveyor belt, which is also perforated. The upstream cold chamber and the steaming chamber may be provided with elements for creating an upstream or downstream temperature gradient to prevent the threads from being subjected to thermal shock during passage through the steaming chamber.
摘要:
The present invention relates to a process for the continuous dyeing of cellulose fiber yarns with reactive dyes and to an apparatus for carrying out this process.The process essentially comprises steps of impregnating yarn which has been continuously unwound at high speed from one or several supports (1) and rewound onto one or several supports (3) with at least one fiber-reactive dye in aqueous solution and at least one alkaline reagent in aqueous solution, and fixing the dye.The invention can be applied especially in the technical field of dyeing cellulose fibers.