Method for producing heat insulation canvas fabric

A production method and canvas technology, applied in knitting, weft knitting, textiles and papermaking, etc., can solve the problems of easy breakage, increased fabric cost, time-consuming and labor-intensive, etc., and achieve stable and tight yarn formation, smooth fabric surface, The effect of reducing the defect rate

A production method and canvas technology, applied in knitting, weft knitting, textiles and papermaking, etc., can solve the problems of easy breakage, increased fabric cost, time-consuming and labor-intensive, etc., and achieve stable and tight yarn formation, smooth fabric surface, The effect of reducing the defect rate

CN110804874AActive Publication Date: 2020-02-18江苏翔宇工艺编织有限公司
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  • Method for producing heat insulation canvas fabric
  • Method for producing heat insulation canvas fabric
  • Method for producing heat insulation canvas fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A production method of heat-insulating canvas fabric, the production method is as follows:

[0034] (1) Yarn feeding: the cotton thread and chemical fiber are sent to the weaving area of ​​the weaving machine by traction;

[0035] (2) Knitting back: the knitting needle rises, and the sinker throat of the knitting machine holds the old coil, so that the old coil is detached from the needle hook to the needle bar;

[0036] (3) Narrowing: the knitting needle retreats from the highest point to the narrowing plane, and retracts the cotton thread, hemp thread or chemical fiber transferred to the needle knitting arc due to the retraction;

[0037] (4) Laying yarn: the yarn guide edge of the knitting machine is located between the knitting needle and the nose of the sinker, and the knitting needle draws new cotton thread, hemp thread or chemical fiber from the yarn guide and inserts it under the needle hook;

[0038] (5) Yarn bending: the knitting needle descends so that the n...

Embodiment 2

[0051] A production method of heat-insulating canvas fabric, the production method is as follows:

[0052] (1) Yarn feeding: the hemp thread and chemical fiber are sent to the weaving area of ​​the weaving machine by traction;

[0053] (2) Knitting back: the knitting needle rises, and the sinker throat of the knitting machine holds the old coil, so that the old coil is detached from the needle hook to the needle bar;

[0054] (3) Narrowing: the knitting needle retreats from the highest point to the narrowing plane, and retracts the cotton thread, hemp thread or chemical fiber transferred to the needle knitting arc due to the retraction;

[0055] (4) Laying yarn: the yarn guide edge of the knitting machine is located between the knitting needle and the nose of the sinker, and the knitting needle draws new cotton thread, hemp thread or chemical fiber from the yarn guide and inserts it under the needle hook;

[0056] (5) Yarn bending: the knitting needle descends so that the nee...

Embodiment 3

[0070] A production method of heat-insulating canvas fabric, the production method is as follows:

[0071] (1) Yarn feeding: the cotton thread and chemical fiber are sent to the weaving area of ​​the weaving machine by traction;

[0072] (2) Knitting back: the knitting needle rises, and the sinker throat of the knitting machine holds the old coil, so that the old coil is detached from the needle hook to the needle bar;

[0073] (3) Narrowing: the knitting needle retreats from the highest point to the narrowing plane, and retracts the cotton thread, hemp thread or chemical fiber transferred to the needle knitting arc due to the retraction;

[0074] (4) Laying yarn: the yarn guide edge of the knitting machine is located between the knitting needle and the nose of the sinker, and the knitting needle draws new cotton thread, hemp thread or chemical fiber from the yarn guide and inserts it under the needle hook;

[0075] (5) Yarn bending: the knitting needle descends so that the n...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to a method for producing a heat insulation canvas fabric, which comprises the steps: feeding yarns, clearing, narrowing, guiding out new cotton threads from a yarn guide by knitting needles, laying hemp threads or chemical fibers under needle beards, bending the yarns, and looping, to be specific, selecting the adjacent needles with 1 or 2 needle spacing to involve in knitting; clearing, laying new cotton threads, hemp threads or chemical fibers, and allowing 1 or 2 needles, not selected, between the adjacent needles to stop operating; reserving an old loop in each needle beard, and carrying out repeated knitting via N single weaves to obtain a gray canvas fabric, wherein cotton threads or hemp threads are knitted to odd ones of the N single weaves, chemical fibers are knitted to even ones of the N single weaves, and repeating is performed on every multiples of 3 of the N single weaves until the needle selecting step is reached. After the fabric is dehydrated andheat-set through a glue groove of heat-insulating coating glue, the releasability is small; the fabric surface is flat, defects are reduced, transverse and longitudinal structures are compact, the shrinkage rate is low, the production steps can be decreased, and the heat insulation effect and the stability are improved.

Description

technical field [0001] The invention relates to a production method of heat-insulating canvas fabric, which belongs to the technical field of canvas fabric. Background technique [0002] Canvas is a kind of thick cotton or hemp fabric, generally using plain weave or a small amount of twill weave, and the warp and weft yarns are made of multi-strand yarns. It is usually divided into two categories: coarse canvas and fine canvas. Coarse canvas is generally used in automobiles. In transportation, open-air covering and other fields, after dyeing or printing fine canvas, it can be used as luggage fabric, handbags, backpacks, tablecloths, etc. When the canvas material is used for heat preservation or heat shielding occasions, the existing canvas fabric only adopts the warp and weft intersecting longitudinal structure, which requires additional sewing of heat insulation or heat preservation materials, which not only consumes time and effort, but also increases the cost of the fabri...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

Patent Timeline
18 Feb 2020
Publication
CN110804874A
IPC
D06N3/04; D06N3/00; D04B1/12
CPC
D06N3/045; D06N3/0061; D06N3/0063; D06N3/0059; D06N3/0077; D06N3/0009; D06N3/0036; D06N3/0034
Inventors
周云