WO2011131011A1

WO2011131011A1 - Polar fleece and manufacturing method thereof

Info

Publication number: WO2011131011A1
Application number: PCT/CN2010/079710
Authority: WO
Inventors: 叶正裕
Original assignee: 叶俊宏; 叶修合
Priority date: 2010-04-23
Filing date: 2010-12-13
Publication date: 2011-10-27
Also published as: CN101824694B; CN101824694A

Abstract

A polar fleece and manufacturing method thereof are disclosed. The polar fleece is made from a veiling and a bottom yarn. The polar fleece is manufactured by steps of weaving, brushing, carding, hearing and pilling. The bottom yarns are covered yarns composed of nichrome filaments (1) with diameter of 0.035-0.018mm and other yarns (2). The polar fleece contains uniformly distributed conductive wires, so it can completely prevent charges from accumulating, has ideal antistatic electricity effect, can effectively inhibit ash absorption, and is convenient to keep clean. The flexibility of the super fine metal wires with specific components and diameters is equivalent to that of the polar fleece, thus the touch feeling of the finished polar fleece is basically the same as that of the available polar fleece. Additionally, the mesh-shaped metal wires also have shielding function, and are quite appropriate to be used for protective clothing.

Description

Fleece and manufacturing method thereof

Technical field

The present invention relates to a fleece, and more particularly to an antistatic fleece, and to a method of making the same, which is in the field of textile materials. Background technique

Fleece is a flannel that is widely used in warm clothing or as a seat cushion or toy. The production process can be referred to the Chinese patent application No. 200710046737.7, entitled "Two-color fleece and its production method". Generally, fleece, like other flannels, is prone to static electricity and is therefore easy to suck.

In order to solve this problem, Chinese Patent Application No. 200510103359.2 discloses a fleece textile made of poly(trimethylene terephthalate) as a raw material and a production method thereof, wherein the veil is poly(trimethylene terephthalate). Yarn or filament, the bottom yarn is other types of natural or synthetic fiber yarn or filament, which is woven by knitting weaving. A fleece product produced in accordance with the method of the present invention. According to the introduction, since PTT is applied to the fleece product, it can solve the defects of the conventional fleece, and has soft hand feeling, fluffy and elastic, anti-fouling performance, anti-pilling performance and excellent antistatic. performance. In addition, Chinese Patent Application No. 200820215048.4 discloses an antistatic lightweight composite fabric, the outer layer of which is a polyester fabric, the middle layer is ultrafine denier fleece, and the inner layer is an antistatic fiber fabric, so While increasing the warmth of the fabric, it overcomes the defects of the conventional composite fleece. The inner layer is made of antistatic fiber fabric, which solves the problem that the fleece itself has static electricity and is easy to absorb dust.

However, the above prior art, whether using poly(trimethylene terephthalate) or polyester fabric plus antistatic fiber fabric, is chemical fiber after all, and its conductivity is extremely low, basically insulating, so the experiment proves that it cannot Effectively conducts electric charge, it is still inevitable to adsorb dust when used, and the antistatic effect is not ideal. In addition, antistatic fabrics are mainly used by adding carbon fibers or immersing fabrics in a liquid containing metal ions of magnesium. Not only experiments have shown that it is difficult to obtain an ideal antistatic effect, but also has the possibility of causing skin irritation. Summary of the invention

The object of the present invention is to provide a fleece having an ideal antistatic effect under the premise of maintaining the original flexibility and performance, so as to make it not only soft and heat-resistant, but also in view of the deficiencies of the prior art described above. It does not absorb dust and is easy to clean. At the same time, the invention will also provide a corresponding manufacturing method. In order to achieve the above object, the fleece of the present invention is produced by a process of weaving, bristles, combing, shearing, and shaking of a veil and a bottom yarn, wherein the ground yarn is a yarn wrapped yarn, and the yarn is made of a diameter. The nickel-chromium alloy of 0.035-0.018 mm (corresponding to 20 denier or less in polyester chemical fiber) and the yarn constitute a covered wire structure. The nickel-chromium is based on more than 60% of iron, and is added with alloying elements such as chromium, nickel, molybdenum, etc., and the mass percentage of specific chemical components is:

Cr 10.0-19.0%; Ni 6.0-13.0%; Ti 1.0-3.0%; C<0.14%; Si<0.80%; Mn<2.00%; P<0.035%; S<0.03%;

Common specifications for veil: dty 150/216, dty 150/144, dty 150/96, hoy 150/96, dty 75/72, dty 75/144, etc.; common specifications for bottom yarn: dty 150/48, dty 100/36, DTY 75/36 and so on.

Typical wire structure is as follows

A. Single yarn wrapped yarn—that is, the covered wire structure is made of a wire as a core, and a single yarn is wrapped around the wire.

B. Double-wrap yarn—that is, the wire-wrapping structure is made of a metal wire, and the two yarns are respectively wrapped around the wire with different directions of rotation.

The above two methods completely coat the wire, so that the wire is not easily damaged during the washing process, and the disadvantage is that the stretchability is slightly poor.

C, and the crepe wire - that is, the wire structure is formed by twisting the wire with more than one yarn into a yarn. This way the fabric can have different fiber properties at the same time.

D. Threading the wrap yarn—that is, the wire structure is entangled with the yarn by air blowing to synthesize the yarn, which has the advantages that the fabric is relatively bulky and easy to be bristled.

Repeated selection tests have shown that the above-described specific composition and diameter of the wire of the present invention not only has desirable corrosion resistance and sufficient strength, but also that the ground yarn composed of the covered yarn has substantially the same flexibility as the veil. Since the fleece of the present invention contains conductive wires which are uniformly distributed, the accumulation of electric charges is completely avoided, thereby having an ideal antistatic effect, which can effectively suppress the ash absorption and facilitate cleaning; and has a specific composition and diameter. The flexibility of the very fine wire is comparable to that of the fleece yarn, so the finished hand feel is essentially the same as the existing fleece. In addition, the mesh-shaped metal wire also has a shielding function, which is very suitable for use as a protective suit.

In summary, the outstanding advantages of the present invention in combining single-core nichrome wire with textile are as follows:

1) Since the yarn of the woven fabric is made of a wire as a core, the charge discharge area is extremely large, thereby realizing an antistatic effect;

2) The continuous single-core alloy wire has no broken ends in any part, and has rational flexibility and strength, so it does not stab the human skin;

3) No chemicals are added during use, and it will not cause harm to the human body and the environment; 4) Reasonably select the parameters such as wire composition and diameter, and make no changes to the original properties such as flatness and comfort of the fabric;

5) Without too many complicated processes, the process is feasible and the cost increase is limited.

The manufacturing method includes the following steps:

The first step, spinning - the nickel-chromium alloy is drawn into a wire having a diameter of 0.035-0.018 mm (corresponding to 20 denier or less in the polyester chemical fiber), and the mass percentage of the chemical composition of the nickel-chromium alloy is: Cr 10.0- 19.0%; Ni 6.0-13.0%; Ti 1.0-3.0%; C<0.14%; Si<0.80%; Mn<2.00%; P<0.035%; S<0.03%;

The second step, the wrapped wire, is wrapped in a fleece fiber to form a covered yarn.

The third step, weaving, is to use the yarn as the ground yarn and the veil to weave the fleece fabric of the required specifications. The fourth step, the bristles - the surface of the fleece bristles is bristled by means of a brush head having a lower hardness than the wire.

The fifth step, combing the hair - the hair of the fleece fabric after the bristles is combed neatly by means of a comb.

Step 6: Shearing - The length of the combed fibers of the fleece fabric surface is uniform by means of a shearing device. Step 7: Shake the granules - Put the sheared fleece fabric into the shaker container and pass through a saturated steam at a temperature of 100-120 °C for 30 - 40 minutes to prepare an antistatic fleece.

In the above bristing step, the fleece woven fabric is flatly attached to the magnetic surface, and the adsorption of the metal wire helps to avoid damage of the wire during the bristles, and the same steps can be taken for the combing and shearing steps. After the grain is shaken, it can be carried out: Step 8: Styling - The raised fleece cloth is heated to 140-190 °C and the cloth is flattened.

If a certain color of fleece is required, the embryo is thrown into the dyeing tank immediately after the third step, and then dehydrated and dried.

The above-mentioned second step of the wire is specifically the following typical ways:

A, single yarn wrapped wire - with a wire as the core, a single yarn wrapped around the wire.

B. Double-wrap yarn--with the wire as the core, the two yarns are wound on the wire in different directions.

C, and the crepe wire - the wire is twisted into more than one yarn into a yarn.

D. Threading of the yarn - the air wire is entangled with the yarn by air blowing and the yarn is synthesized. DRAWINGS

The invention will now be further described with reference to the accompanying drawings.

FIG. 1 is a schematic structural view of Embodiment 1 of the present invention.

FIG. 2 is a schematic structural diagram of Embodiment 2 of the present invention. FIG. 3 is a schematic structural diagram of Embodiment 3 of the present invention. detailed description

Embodiment 1

The fleece of this embodiment is produced by the following process steps:

1. Wire drawing—The nickel-chromium alloy is drawn into a wire with a diameter of 0.02 mm. The control percentage of the chemical composition of the nickel-chromium alloy is: Cr 10.0-19.0%; Ni 6.0-13.0%; Ti 1.0-3.0%; C <0.14%; Si<0.80%; Mn<2.00%; P<0.035%; S<0.03%; the balance being Fe. The above-mentioned nickel-chromium alloy chemical composition and spinning diameter are determined by repeated selection tests, and have ideal corrosion resistance and sufficient strength, so that the bottom yarn composed of the covered yarn has substantially the same flexibility as the veil.

In the process of spinning, in order to avoid the wire being easily broken due to cold and brittleness at low temperature, the temperature of the spinning environment (including the lubricating oil used) should be kept at 30-35 °C.

The cold work hardening during the drawing process may cause curling in the subsequent wrapping, which causes the surface of the grey cloth to be uneven, and it is difficult to level and make the fleece product feel hard. Therefore, it is preferable to carry out annealing after the drawing, and the wire is heated to 1000-1200 ° C and cooled to room temperature in 10-12 minutes.

2, the wire - as shown in Figure 1, with the wire 1 as the core, the two yarns 2a and 2b are respectively wrapped around the wire in different directions of rotation, forming a yarn as a fleece bottom yarn Yarn.

3, weaving - on the fleece loom, the yarn is used as the ground yarn, and the veil is woven into the fleece fabric of the required specifications, and the dye cloth is dyed into the desired color. After drying out, it is dehydrated and dried.

4, bristles - with the brushing machine with a lower hardness than the wire, the surface of the fleece bristles is bristled, and the surface of the flannel woven fabric is magnetically permeable, so that it fits better with the bottom yam and protects Nickel-chromium wire inside.

5, combing - by means of the comb on the carding machine, the surface of the fleece fabric after the bristles is combed and tidy. Step 6: Shearing—The length of the combed fibers of the fleece fabric is cut into lengths by means of a shearing machine. The length should be controlled to 1.2-3.5 mm as needed.

7. Pelletizing - Put the sheared fleece fabric into the pelletizer of the shaker and pass through a saturated steam at a temperature of 100-120 ° C for 30 - 40 minutes to make the desired fleece. .

8. Styling - The raised fleece cloth is heated to 140-190 ° C, and the cloth is instantly flattened to a predetermined width to shape it.

This embodiment breaks through a series of technical bottlenecks such as broken wire and curl for a long time, and the anti-static effect of the tested fleece after the preparation is very satisfactory.

The following is the yarn of the fleece yarn of the present embodiment and the existing poly(trimethylene terephthalate) (PTT) filament yarn pair. Ratio test:

Therefore, although the PTT yarn is less prone to static electricity than the conventional fleece polyester yarn (PET), its electrical conductivity is incomparable with the metal-wrapped yarn, so the antistatic property of this embodiment (and other materials) The static electricity generated by the friction of the clothing material has a very obvious advantage.

Embodiment 2

The fleece of this embodiment is substantially the same as that of the first embodiment, and the veil and the bottom yarn are mainly made by the steps of weaving, bristles, combing, shearing, and shaking. The difference is that the bottom yarn is as shown in Fig. 2, and the wire is twisted and twisted, that is, the wire 1 is twisted with the plurality of yarns 2.

Embodiment 3

The fleece of this embodiment is also basically the same as that of the first embodiment, and the veil and the bottom yarn are mainly made by the steps of weaving, bristing, combing, shearing, and shaking, wherein different bottom yarns are as shown in FIG. The yarn is spun, that is, the wire 1 is entangled with the yarn 2 by air blowing and the yarn is synthesized.

Other than the above-described embodiments, the present invention may have other embodiments. Any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection claimed in the present invention.

Claims

Rights request

1. A fleece, which is produced by a process of weaving, bristles, combing, shearing, and shaking of a veil and a bottom yarn, wherein: the ground yarn is a yarn wrapped yarn, and the yarn is composed of a yarn A nickel-chromium alloy having a diameter of 0.035-0.018 mm and a yarn constitute a covered wire structure; the mass percentage of the chemical composition of the nickel-chromium is: Cr 10.0 - 19.0%; Ni 6.0 - 13.0%; Ti 1.0 - 3.0%; <0.14%; Si<0.80%; Mn<2.00%; P<0.035%; S<0.03%; the balance being Fe.

The fleece according to claim 1, wherein the wire structure has a wire as a core, and a single yarn is wound around the wire.

3. The fleece according to claim 1, wherein the wire structure is made of a metal wire, and the two yarns are respectively wound around the wire in different directions.

4. The fleece according to claim 1, wherein: said wire-wrapping structure twists a wire and a yarn above one into a yarn-wrapped yarn.

A method of manufacturing a polar fleece, comprising the steps of:

First step, spinning - the nickel-chromium alloy is drawn into a wire having a diameter of 0.035-0.018 mm, and the mass percentage of the chemical composition of the nickel-chromium alloy is: Cr 10.0 - 19.0%; Ni 6.0 - 13.0%, Ti 1.0 - 3.0%, C<0.14%, Si<0.80%, Mn<2.00%, P<0.035%, S<0.03%, the balance being Fe;

The second step, wrapping the wire - wrapping the wire in the fleece fiber to form a yarn wrapped yarn;

The third step, weaving - the yarn is used as the ground yarn, and the veil is woven into the desired size of the fleece fabric; the fourth step, the bristles - by means of the brush having a lower hardness than the wire, The surface of the fleece fabric is bristled; the fifth step, combing - the fifth step of the surface of the fleece fabric after the bristles by means of a comb, the combing - the fleece fabric after the bristles by means of a comb The surface of the raised fibers is neatly combed;

Step 6: Shearing - The length of the napped fluffing fibers on the surface of the fleece fabric is uniform by means of a shearing device; Step 7: Shake the flakes - the fleece cloth after shearing is placed in the shaker container. Antistatic fleece is prepared by introducing saturated steam at a temperature of 100-120 ° C for 30 - 40 minutes.

The method of manufacturing a fleece according to claim 5, wherein in the fourth step, the fleece bristles are flatly attached to the magnetic surface.

The method for manufacturing a fleece according to claim 5 or 6, further comprising: the eighth step of shaping the raised fleece cloth to 140-190 ° C to flatten the cloth. .

The method of manufacturing a fleece according to claim 7, wherein in the first step, the temperature of the spinning environment is maintained at 30 to 35 °C.

The method of manufacturing a fleece according to claim 8, wherein the first step of the first step is followed by annealing, and the wire is heated to 1000-1200 ° C and cooled to room temperature for 10-12 minutes.