Key technology of large spacing warp knitting aerated film material production
大隔距经编充气膜材料生产关键技术
Large spacing hollow fabric (drawing fabric) (spacing greater than 100mm) is an innovative way to change the monofilament between the traditional warp knitted spacer fabric and the woven hollow fabric into multifilament, which greatly reduces the volume and space requirements of the fabric.
大隔距中空织物（拉丝布）（隔距大于100mm）是将传统经编间隔织物与机织中空织物中间的单丝创新性地改成复丝，极大降低了织物的体积与空间要求。
Inflatable membrane material is to big and big center distance from the hollow fabric 迚 line become inflated film after coating and adhesive material, has good resistance to pressure, as well as the characteristics of easy to inflate, easy to carry, and lightweight and the advantages of the three-dimensional structure is easy to install, in the medical, sports entertainment, agricultural planting, ambulance, military defense, and other industries have great application prospect. Inflatable surfboard, inflatable air cushion, inflatable gymnastics mat, taekwondo mat, ski fence, thermal tent, outdoor mattress, inflatable bathtub, pontoon/wharf, steel structure house standard wall panel, inflatable membrane structure building.
大隔距充气膜材料是对大隔距中空织物迚行涂覆与粘合后成为充气膜材料，具有良好的抗压性，以及易于充气、便于携带等特点，加之轻量化和三维立体结构便于安装等优势，在医疗、运动娱乐、农业绿化、救护、军事国防等各个产业领域均有很大的应用前景。充气冲浪板、充气气垫、充气体操垫、跆拳道垫、滑雪护栏、保暖帐篷、户外床垫、充气浴缸、浮桥/码头、钢结构房屋标准式装配墙板、充气膜结构建筑。
Needle bed moving technology, yarn guide comb drive technology, high variable let-off technology; The key technology of large spacing hollow fabric production: selection of yarn raw materials, design of cushion fabric structure, setting of let-off parameters and control of yarn tension. Large distance double needle bed warp knitting machine speed (300r/m) maximum distance (600mm), tensile load (N/5cm) longitude ≥320, weft ≥350, tear load (N) longitude ≥100, weft ≥90, peel strength (N/5cm) longitude ≥90, weft ≥90. Warp knitted spacer fabric is woven on double needle bed Raschel warp knitting machine, simple operation, easy to form, high production efficiency, low cost, but more yarn buckling; • It has good elastic recovery, air permeability and moisture permeability, sound insulation and shock absorption, energy absorption and material deformation performance.
针床移动技术、导纱梳栉传动技术、高变量送经技术；大隔距中空织物生产关键技术：纱线原料选用、垫纱组织结构设计、送经量参数设置、纱线张力控制。大隔距双针床经编机机速（300r/m）最大隔距（600mm） 、拉伸负荷（N/5cm） 经向≥320，纬向≥350 、撕裂负荷（N） 经向≥100，纬向≥90 、剥离强度（N/5cm） 经向≥90，纬向≥90 经 。经编间隔织物 • 在双针床拉舍尔经编机上编织，操作简单，易成型，生产效率高，成本较低，但是纱线屈曲较多；• 具有良好的弹性回复、透气透湿、隔音减震、能量吸收与材料形变性能。
Double rapier: weft insertion technology, let-off crimping technology, weaving tension control technology. Each layer of woven spacer fabric is interwoven with warp and weft threads, with less yarn buckling. Spacer yarns are usually interwoven with "8" characters, light in weight, easy to form, and limited in supporting effect, resulting in unstable overall shape and high production cost.
双剑杆：引纬技术、送经卷曲技术、织造张力控制技术。机织间隔织物织物层与层之间通过接结纱连接，每一层织物都是经过经纱和纬纱线相互交织而成，纱线屈曲较少，间隔纱通常采用“8”字交织• 质轻，易成型，间隔纱支撑效果局限，导致整体形态不稳定，生产成本较高。
It is difficult for this kind of products to have a large and wide market. Functional products are developed: large spacing hollow membrane material + aerogel, large spacing hollow membrane material + polyurethane foam, variable spacing hollow membrane material.
该种类产品很难有量广面大的市场，开发功能性产品：大隔距中空膜材料+气凝胶，大隔距中空膜材料+聚氨酯泡沫，变隔距中空膜材料