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为什么有的经丝必要上浆?有的经丝可以免浆?在这里可以找到回答/Why do some warp yarns need sizing? Some warp yarns can be free of pulp? Find the answer here

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合纤丝做经为什么要上浆?上浆的机理是什么?要留意什么题目?

Why do you want to sizing? What is the mechanism of sizing? What issues should I pay attention to?

 

合纤长丝是由多根单纤维复合而成的,如165dtex/48f,即表现由48根单纤维组分解165dtex的复丝,在消费历程中,丝线在受力形态下要颠末络、并、捻、整等各工序,而在织造历程中,要担当导辊、综丝、钢筘的重复摩擦,丝线的摩擦多至万次以上,而喷水织机织造时的车速一样平常在500~700r/min,高速率摩擦单丝十分容易起毛,不光影响织造的服从,严峻的会招致无法织造,并且使产品的质量分明降落,为此,要对无捻或低捻合纤长丝举行上浆,上浆后的经丝能担当加工历程中的摩擦而顺遂举行织造,并包管产品的质量。

The synthetic filaments are made up of a plurality of single fibers, such as 165dtex/48f, which means that 48 single fibers are combined into a 165dtex multifilament. During the production process, the filaments are subjected to the network under stress. In the weaving process, it is subject to repeated friction of the guide rolls, healds and steel shovel. The friction of the wire is more than 10,000 times, and the speed of the weaving machine is generally 500~700r. /min, high-rate friction monofilament is very easy to fluff, not only affects the efficiency of weaving, but also causes the weaving to be impossible, and the quality of the product is significantly reduced. For this reason, the sizing or sizing of the non-twisted or low-twisted filaments is required. The warp yarn can withstand the friction during processing and smoothly weave, and guarantee the quality of the product

 

上浆的机理是:经上浆后,浆料在丝身的四周构成一层浆膜,以耐种种东西的摩擦;而浆液渗透单纤维间,将各单纤维粘住,进步复丝的集束性和强力,如许包管参顺遂地完成后道工序的义务。短纤纱由于毛羽多,上浆结果要求将料以披覆为主,合纤长丝的上浆则要以浸透为主而以披覆为辅。由于合纤丝的回潮率较低,如涤纶丝的尺度回潮率为0.4%,锦纶为4%,它们属于疏水性纤维,即对水不亲和,因此其上浆不像粘胶丝那么容易,它必需满意两个条件:即浆料的黏性要特好,浆料在渗 入单纤之间能将单纤互相粘住,包管取得得意的集束性,并在丝身四周构成精良的浆膜,以包管其精良的耐磨性。而在浆丝时,要包管浆丝之间有肯定的间隔,避免各根上浆后的复丝互相黏搭而不克不及织造。

The mechanism of sizing is: after sizing, the slurry forms a slurry film around the silk body to resist the friction of various equipment; while the slurry penetrates into the single fiber, the individual fibers are stuck, and the multi-fiber bundle is improved. And strong, so as to ensure the smooth completion of the tasks of the subsequent process. Due to the large hairiness of the spun yarn, the sizing effect is required to be mainly coated, and the sizing of the synthetic filaments is mainly based on infiltration and supplemented by drape. Due to the low moisture regain of the synthetic filaments, such as polyester yarn with a standard moisture regain of 0.4% and nylon of 4%, they are hydrophobic fibers, that is, they are not compatible with water, so their sizing is not as easy as viscose. It must satisfy two conditions: the viscosity of the slurry is particularly good, and the slurry can adhere the single fibers to each other after infiltrating into the single fiber, ensuring satisfactory bundleability and forming a good serosa around the filament. To ensure its good wear resistance. In the case of the pulp, it is necessary to ensure a certain distance between the filaments, and the multifilaments after the sizing are prevented from sticking to each other and cannot be woven.

 

上浆时要严厉控制好上浆的浆料制备和上浆的工艺。现在国产的浆料多用丙烯酸酯,质量一样平常都已过关,但要举行严厉的选择,分外是其黏度和浓度都应切合要求,切忌自觉选购。为了避免在浆丝历程中丝身上的消静电剂被撤除,以是在浆猜中要参加过量的消静电剂。为了坚持丝线的柔软度,可加肯定量的柔软剂,也可加过量的浸透剂和消泡剂。在制浆历程中要严厉依照划定的制浆操纵步伐,以使浆料切合消费的要求。

The sizing slurry preparation and sizing process should be strictly controlled during sizing. At present, the domestically produced slurry is mostly acrylate, and the quality has generally passed, but strict selection is required, especially the viscosity and concentration should meet the requirements, and should not be blindly purchased. In order to prevent the antistatic agent on the filament from being removed during the filament process, an appropriate amount of antistatic agent is added to the slurry. In order to maintain the softness of the thread, a certain amount of softener may be added, and an appropriate amount of penetrant and antifoaming agent may be added. In the pulping process, the pulping operation procedures must be strictly followed in order to make the slurry meet the production requirements.

 

在消费中要实在按上浆工艺要求,要做到“七定”,即定浆黏度、定浆浓度、定浆温度、定上浆线速率、定浆丝伸长、定浆丝回潮率(定烘筒或烘燥室温度)、定上浆率。黏度是表现浆料黏性优劣的水平,而浓度是表现浆料含固体胶的几多,一样平常地说:二者成正丝,但由于各浆料质量的差别,即便是统一浓度的浆料,其黏性也纷歧样,以是严厉地说二都要控制,而一样平常消费中,每每有些人只控制黏度,而有些人只控制浓度。浆料黏度和浓度越高,丝条强度和外表耐磨性增长,而弹性低,丝线越容易脆断,落浆也多,以是要准确控制。上浆线速率过快,消费服从虽高,但由于丝条浸透不及和包覆较差,浆丝质质变差。经丝在上浆中由于遭到辊筒、上浆辊和烘筒等的拉动,一样平常出现出伸长形态,但涤纶、锦纶等合纤丝是热缩性纤维,丝身颠末浆槽、烘筒和热烘室浆会发生回缩,因此合纤丝上浆率一样平常是拉伸和回缩抵消,伸长约为0,浆伸大,丝身被拉长,强度遭到肯定影响,容易断头,但浆伸小,丝身遭到织造时的上机张力,将被拉长而毁坏浆膜,纤维容易起毛。浆丝的回潮率高,丝身容易发生黏搭,丝条紧缩不匀,发生吊松经、硬度不敷,严峻时将发生裂轴,但回潮率低,则容易发生静电,招致纤维起毛,而且由于浆膜发硬、发脆,丝身中浆液的浸透性好,上浆质量好。但上浆率过高则会发生搭浆,乃至不克不及织造,而上浆率小,则丝纤维容易发毛。以是要从消费的理论中,探索出最佳的浆丝工艺,并实在实行,这是包管浆经质量和产品格量的紧张步伐。

In the production, we must actually follow the requirements of the sizing process, and we must make the “seven-set”, that is, the viscosity of the slurry, the concentration of the slurry, the temperature of the slurry, the speed of the sizing line, the elongation of the fixed wire, and the moisture regain of the fixed wire. Tube or drying room temperature), set the sizing rate. Viscosity is the degree of viscosity of the slurry, and the concentration is the amount of solid glue contained in the slurry. Generally speaking, the two are in the form of a positive yarn, but due to the difference in the quality of each slurry, even the same concentration of the slurry, The viscosity is not the same, so strictly speaking, the two must be controlled. In daily production, some people only control the viscosity, while others only control the concentration. The higher the viscosity and concentration of the slurry, the higher the strength and surface wear resistance of the yarn, and the lower the elasticity, the easier the wire is to be brittle and the more the pulp is dropped, so it must be properly controlled. The speed of the sizing line is too fast, and the production efficiency is high, but the quality of the sizing is deteriorated due to poor penetration of the yarn and poor coating. The warp yarn is generally stretched in the sizing due to the pulling of the roller, the sizing roller and the drying cylinder, but the synthetic fiber such as polyester and nylon is heat-shrinkable fiber, and the silk body passes through the slurry tank, the drying cylinder and the heat. The drying room pulp will produce retraction, so the sizing rate of the combined filaments is generally offset and retracted, the elongation is about 0, the pulp stretch is large, the silk body is elongated, the strength is affected, and the head is easy to break, but the pulp When the stretch is small, the silk body is subjected to the tension of the upper machine during weaving, and will be elongated to destroy the plasma film, and the fiber is easy to fluff. The regain rate of the sizing wire is high, the silk body is easy to be glued, the yarn is not uniformly shrunk, the sling is loose, the hardness is insufficient, and when it is severe, the crack axis is generated, but the moisture regain is low, the static electricity is easily generated, and the fiber fluff is caused, and Because the serosa is hard and brittle, the permeability of the slurry in the silk body is good, and the sizing quality is good. However, if the sizing rate is too high, the pulp will be produced, and even if the sizing rate is small, the silk fiber is easy to be hairy. Therefore, from the practice of production, we must find out the best pulping process and implement it effectively. This is an important measure to ensure the quality and quality of pulp.

 

现在,浆丝机的主动化控制技能较高。只将必要的工艺参数输出盘算机监控体系,就能主动控制并在线检测,还能将图像在红外线触摸屏上表现,主动记载,这里紧张的是技能职员必要输出准确的工艺参数,并按记载的数据和消费的实践状况实时修正工艺参数。

At present, the automatic control technology of the pulping machine is high. Only input the required process parameters into the computer monitoring system, it can automatically control and detect online, and the image can be displayed on the infrared touch screen and automatically recorded. The important thing is that the technician needs to input the correct process parameters and press the recorded data. Correct the process parameters in time with the actual situation of production.

 

 

哪些质料可以不上浆而间接织造?

Which materials can be directly woven without sizing?

 

织造用质料可分为经用质料(线丝)和纬用质料(纬丝)两大类。一样平常来讲,纬丝质料在喷水织造中可以不颠末任何加工和处置,开箱后即可间接上机利用,而经丝在织造历程中要遭到综丝、钢筘等的屡次重复拉伸、摩擦和弯曲作用,将惹起经丝机器功能的降落,容易构成纤维散乱、擦毛等,而形成断经以致影响织造的顺遂举行。以是选用无捻或低捻合纤长丝做经丝利用时、必需要举行上浆处置,使其织造功能进步,从而顺应织机高速运转,包管织造顺遂举行。

The raw materials for weaving can be divided into two major categories: raw materials (filaments) and weft materials (wefts). Generally speaking, the weft raw materials can be directly processed on the machine without any processing and processing in the water-jet weaving, and the warp yarns are repeatedly pulled by the healds, steel rafts, etc. during the weaving process. The action of stretching, rubbing and bending will cause the mechanical properties of the warp to decrease, and it is easy to form fibers scattered, rubbed, etc., which will cause the warp to affect the smooth progress of the weaving. Therefore, when the non-twisted or low-twisted synthetic filaments are used as the warp yarns, the sizing treatment must be carried out to improve the weaving performance, thereby adapting to the high-speed operation of the loom and ensuring smooth weaving.

 

那么,有哪些经丝质料可以不颠末上浆而间接织造呢?

So, which warp raw materials can be directly woven without sizing?

 

依据织物要求和质料供给状况可以选用免浆丝做经丝而间接织造。免浆丝是指不必要颠末上浆处置而可以间接织造消费的一类经丝质料。英文缩写词为NOY或NSY。

According to the fabric requirements and the supply of raw materials, it is possible to directly weave the yarn without the use of the yarn. The free-slurry yarn refers to a type of warp-knitted material which can be directly woven without sizing treatment. The English abbreviation is NOY or NSY.

 

 

免浆丝次要包罗以下几种:

The free-free yarn mainly includes the following:

 

1.网络丝(Network wire

 

亦称交络丝,复丝在网络喷嘴中受紧缩氛围喷吹,使一些纤维距离地部分纠结其他纤维而不松懈,从而构成具有网络点的丝条。复丝在肯定张力和速率下经过网络喷嘴时,被紧缩氛围按垂直偏向或成肯定角度偏向喷吹,使复丝中的单丝激烈振动,构成错位、弯曲和其他单线缠绕,消费周期性的部分缠结的网络点,增长了抱协力,可以取代加捻。网络丝织造时不易发生毛丝断头。网络点到达150个/m以上的网络丝可不必上浆而间接织造,免浆丝次要指的也是网络丝(交络丝)。但网络渡过高,则其织物外表的折光率不匀称,影响表面及手感。若要进步其可织性,还可在整经时举行上油(上蜡)或得当加以拖浆(轻浆)处置,则更能实用于高速运转的喷水织机。

Also known as collateral filaments, the multifilaments are blown by compressed air in a network nozzle, causing some of the fibers to partially entangle other fibers at intervals without loosening, thereby forming a strand having network points. When the multifilament passes through the network nozzle under a certain tension and speed, the compressed air is blown in the vertical direction or at an angle, so that the monofilament in the multifilament strongly vibrates, forming misalignment, bending and other single-wire winding, producing periodicity. Locally entangled network points increase cohesion and can be used instead of twisting. When the network wire is woven, it is not easy to produce a broken yarn. The network wire with the network point of more than 150/m can be directly woven without sizing, and the wire-free wire mainly refers to the network wire (co-filament wire). However, if the network is too high, the refractive index of the fabric surface is not uniform, which affects the appearance and feel. In order to improve the woven fabric, it can also be applied to the high-speed water jet loom by applying oiling (waxing) or properly dragging (lightening) during warping.

 

2.加捻丝(Adding silk

 

对丝举行加捻,一样平常捻度达6~8捻/cm以上时,织造时不必要上浆。但加工工序增多、本钱进步,偶然还会影响产品格量。喷水织造工程除种类要求经丝加捻外,一样平常不宜接纳加捻丝。

The wire is twisted, and when the twist is generally 6-8 捻/cm or more, sizing is not required during weaving. However, the number of processing steps increases, the cost increases, and sometimes the quality of the product is affected. In addition to the requirement of warp twisting, the water jet weaving project is generally not suitable for twisting.

 

3.增加合纤长丝中单丝根数(Reduce the number of filaments in the filaments

 

合纤长丝织物要求绸面平滑饱满和手感柔软,以是选用质料常盼望接纳单丝并合根数较多的复丝。如77.8dtex(70旦)的锦纶丝有16根、18根、36根、48根等单丝构成,这种合纤丝常必要上浆前方可上机织造。若用增加复丝的单丝根数和增粗直径等办法,如上述锦纶丝单丝根数降至10根以下时,则无须上浆,只需在整经时经油剂或上蜡处置做经轴就可以上机织造。但这种办法由于单丝根数增加或直径增粗,会使织物手感硬化、表面结果差,分外是涤纶长丝织物尤为紧张,故很难接纳。

Synthetic filament fabrics require a smooth and full-bodied silk surface and a soft hand. Therefore, it is often desirable to use a multifilament with a plurality of monofilaments and a larger number of raw materials. For example, 77.8 dtex (70 denier) of nylon filaments consists of 16 filaments, 18 filaments, 36 filaments, and 48 filaments. This type of filament yarn often needs to be sizing before being woven on the machine. If the number of monofilaments and the diameter of the multifilament of the multifilament are reduced, if the number of filaments of the nylon filament is reduced to less than 10, the sizing is not required, as long as it is treated by oil or waxing during warping. The shaft can be woven on the machine. However, this method is difficult to use because the number of monofilaments is reduced or the diameter is increased, which makes the fabric hard and has a poor appearance. In particular, polyester filament fabrics are particularly important.