JPS5813738A - Carpet base fabric - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a synthetic resin 411 which increases the adhesion to latex and also eliminates the corrosivity, bacterial adhesion, non-uniformity of the product, etc. seen in conventional natural shades. The present invention relates to a carpet base fabric suitable as a secondary base fabric.

Traditionally, tufted carpets use a woven fabric made of PP7 tufted yarn in the shade as the primary base fabric.
It is constructed by injecting pile into the raw material 11, which is obtained, and using a plain weave fabric for the shade as a secondary base fabric and bonding the two with latex.

However, the shade, which is the material of the secondary base fabric, is a natural material and has various problems such as lack of supply and corrosion resistance, lack of water resistance, adhesion of bacteria, and non-reliability of 11 products, so it is difficult to use other synthetic materials. No, there is a demand for conversion.

Therefore, fabrics using polypropylene flat yarn cloth batting, which are often used as primary base fabrics, fabrics using spun yarns such as ester, resin yarn, PP, and acrylic, and fabrics using defibrated yarns have been proposed. However, in both cases, there are problems such as lack of nap on the surface of the fabric, no need for adhesion with the lattetu layer, weakness of the fabric itself, high price, etc.To solve these problems, the present invention was developed as a result of intensive study. reached.

The gist of the present invention is that yarn 7 of 1000-(QOG denier) having raised yarn is used as the weft yarn, and thermoplastic resin 7 yarn with a width-to-thickness ratio of 20 to 75 is used as the warp yarn.
Km is also a processed carpet base fabric, which will be explained in detail below.

First, the carpet base fabric of the present invention will be explained using drawings. Figure 1 is a flat box diagram of the carpet base fabric, and Figure 2 is a flat box diagram of the carpet base fabric.
The figure is a plan view showing another embodiment.

In Fig. 1, a brushed polypropylene yarn is used as the weft 1, and two polypropylene flat yarns are used as the warp 2, which are leno-woven and further brushed. The warp yarn 2 is used to create a plain weave, and the knitting is further processed. In addition, if the Sakai yarn with napping is used for the warp, troubles will occur during the manufacturing process.

Ending W! The yarn used as the weft in A may be any yarn of 1,000 to 4,000 denier with a large number of naps, such as Sakai yarn or spun yarn. ★The material also has a melting point of 1.
Any temperature is acceptable as long as it is 40°C or higher. It is preferably made of polypropylene, and in particular, a scale fiber yarn with naps is the best.In the present invention, it is important to use a yarn with a large number of naps in the weft yarn, which is important to avoid the occurrence of naps. If you use a weft with no weft, good napping will be obtained on both sides of the woven fabric even if the cloth is raised as described below, but the adhesion to the other latex will be very poor. If the fibers are forcibly raised in the ninth stage, the cost of raising the fibers becomes very high, and the physical properties of the woven fabric, especially the strength, deteriorate significantly.Furthermore, the fineness of the yarn used is 1000 to 4000.
The denier is optimal, and if it is less than 1000 denier, there will be problems with woven fabric strength, fabric thickness, amount of raised fabric, etc.
If the denier exceeds 0, there will be problems such as weaving troubles and increased costs. For the same reason, the number of shots is 6 to 14/
1 nch is good.

9. The warp in the present invention is preferably made of thermoplastic resin. 11. < is made of polypropylene, which is subjected to 5 to 7 times abrasive elongation, 5 to 12 times relaxation, and has a low shrinkage rate. Although it is obvious, the conditions for film formation, stretching, etc. may be - normal ones. The fineness, width, and width-to-thickness ratio of the flat yarn used are t2so.

~1000 denier tL < is 300 ~ 5 (10 f ale, tape width is o, s ~ 2.0 yen, ratio of width W to thickness T
/TH20~7. ．． S likes 'tL (d3 Toro G$ is good.

In other words, if the fineness is less than 300 denier, the strength is low and it cannot withstand the post-processing fiber making and fiber raising processes, so even if it can be processed, the strength of the product will be low - if it exceeds 61,000 denier There are 4 hours of price problems, but the warp density is large, and the weft part, which is the 11th part, is exposed to the woven fabric surface WK. There is.

If the width exceeds 10 square centimeters, the width is too wide and rounded leno weaving is not necessary, resulting in poor fibre-making properties, and furthermore, since the thickness is thin, problems occur during fiber separation during waiting time. If the width is narrower than 0.8cm, flat yarn forming is not possible.It is close to ld1, but the rounded warp yarns, which are extremely thick, are not rounded during fiber manufacturing, and the warp portion becomes the same as the chive width, making it difficult to form a flat yarn on both sides of the woven fabric. 4. When the warp density is low, the weft portion of the 011 weft part is reduced and the adhesion becomes poor.4. If the 9 W/T exceeds 7 seconds, fiber splitting problems will occur in the manufacturing process, and if it is less than 20, the weft portion of the bonded portion on the surface of the woven fabric will decrease, resulting in poor adhesion.

The m weave performed in the present invention is leno weave, ordinary lk second, etc. lll1! There is no problem, but it depends on the warp, so 41
There is less mesh misalignment with k-sized fibers, and there is no problem with mesh misalignment even when the fiber diameter is m and the fabric is raised. The number of weft threads inserted is 6 to 14.
Book / 1 nch - eL< is 8 to 12 threads / 1 nch, if it is less than 6 threads, there will be a problem with the adhesion of the woven fabric because there are fewer weft threads which are the adhesive part, and if it exceeds 14 threads, there will be a problem with the adhesion. Although this is not a problem, it does cause troubles in the weaving of Il textiles and problems in terms of price.

The fabric raising performed in the present invention is necessary in order to obtain sufficient adhesion, and consists of a self-sealing, self-sealing cloth with a short needle height and strong needle tip torque, and a self-rotating kakuntapile four and a pile roll. , fC on the outer peripheral surface of the cylinder where this turns
Good napping can also be obtained by using a conventionally known raising machine such as a hydraulic or electromagnetic type, but in this case, the processing speed is slow, the machine price is high, and the machine is expensive. Due to the mechanism, the four-wheel rotation of the clothing cannot be rotated and rotates at high speed.There is a problem with the material, such as 11JIII, which is made with a wide machine with a width of about 3 mm or more.It is good, As described below, a raised fabric with high speed of raising and good JIK can be obtained by contacting with the raising needle using the auxiliary needle cloth for raising the paper or by using these in combination.

In other words, a relatively rough layer of Nando paper is wrapped around the four wheels of the Suydopaper napping roll for one rotation, and the cloth is brought into contact with this at a contact angle of 10° to 120°, and the speed of the napping roll (hereinafter referred to as RV) is increased. )” and “cloth speed (hereinafter referred to as Ov)” ratio RV
10V is preferably S or more, or 1O-Zoo is the contact raising method, and if the contact angle is less than 10°, no raising occurs and 120
If it exceeds @, napping will occur, but there will be an extreme decrease in stiffness, and the contact resistance will be too large, and the woven fabric will wind itself on the napping roll due to the slight adjustment of the tension of the fabric in contact, which will cause trouble.

A feature of raising the raised fabric using the sandpaper method is that a large number of raised naps with relatively short pile lengths are generated.

The first point is that the smoothness of the fabric is important; if the smoothness is poor, it will become stiff and the strength of the woven fabric will decrease.
There is a problem that the strength decrease in the <* direction is large because the loss of the warp yarn is large in the yarn y in which the weft yarn is not raised in the IF#, but in the warp yarn.

As shown in Figure 3, a more convenient way to raise the nape is to use a stone that is normally used in the napping machine and is used as an auxiliary cloth for the napping instead of the napping cloth. The cloth for splitting the straight needle or self-needle with weak needle point torque 3! and the cloth for hair handling 7 are wrapped around the rotary a-ru 4 using a raised roll, and the cloth 5 is brought into contact with the raised roll, preferably by touch perm. 6, touch the cloth at an acute angle with a touch tool 6, and brush the cloth at a ratio of RV10V to 5 or more, preferably <Har G to 10G.Conventionally,
There is no concept of napping in the cloth for splitting the yarn or the cloth for cutting, and it is simply used for dividing the pile yarn @ Sabako KI! It was originally used in the napping method, and the aim was to meet the needs of carpet base fabrics.

This was reached as a result of intensive consideration. As a result, even for fabrics using yarn raised on the weft, there is no damage to the warp yarns, no reduction in the strength of the woven fabric itself, and the raising needed to provide adhesiveness as a carpet base fabric can be done quickly and easily. Expression: 1. Mechanical structure: □ Also, we were able to resolve the problem in terms of manufacturing a wide-width machine of 4 to 11 widths, which is necessary for carpet base fabrics. The needle tip torque of the clothing used is strong and may cause damage, so please adjust the contact time between the needle tip and the fabric a little. Problems such as damage may also occur. In other words, a mechanism is used in which the needle tip torque is weakened and the needle tip is raised against the cloth. 19. If the woven fabric is brought into contact with the raised roll at an acute angle using a touch roll, if the woven fabric is brought into contact with a wide width, the woven fabric may be damaged in the factory, similar to the case when using needle cloth with strong needle tip torque as described above. do. Furthermore, if KRV is 10 VFis or more, preferably 10 to 100, it is less than 5, sufficient napping cannot be obtained. Incidentally, it is preferable that the velocity directions of RV and Ov are opposite directions, and in this sense, it may be better to express that RVloV is preferably 15 or less.

Hereinafter, minus signs will be omitted.

It is preferable that the napping done in the above manner be done in one stage.11. <, it is better to reduce the KVloV of each stage by i and complete the raising in two or more stages in terms of uniform raising % fiber strength.

In addition, when the nap is raised using the auxiliary cloth roll for raising, a nap with a relatively long pile and a small number of naps can be obtained. Therefore, in order to restore the distribution of long and short lengths in the raised part, the aforementioned sandpaper four-fold raised part is used in combination. In other words, a realistic carpet can be created by using a high-quality sandpaper in the first stage to create a nap with a large number of naps and one pile short, and then in the second stage using an auxiliary needle cloth roll for napping to create a long nap. A base fabric for use is obtained.

- The carpet base fabric of Rikiki's invention is also useful as a primary base fabric, and is particularly suitable as a secondary base fabric for fine gauge carpets, and is useful in preventing raised curling and greening.

Examples 1-4. Comparative Examples 1 to 6 Polypropylene (MF!-3,51i/lG11l)
After being stretched and relaxed for 6 times, the defibrated yarns of various deniers, which were rounded with a needle roll and brushed, were made into wefts and each panicle of L-Po9-U Belay (MF x-3L51/1011i1). Two flat yarns of width and denier that have been stretched 6 times and relaxed by 10 bags are intertwined as warp threads, wrapped with auxiliary needle cloth for raising as shown in No. BIIK, and 9 needles are rotated in the opposite direction to raise the cloth in two stages. did. Note that the clothing barrier (RV)/cloth speed (OV) is 1st stage t4-bX24.2nd stage is s5. The first row of auxiliary clothing for napping is Japanese clothing.
The row is the same ■ a @ Saba 1 RR3 ply RB and nine.

The obtained nine base fabric was used as a secondary base fabric and attached to a tufted raw fabric according to the following Qin procedure to make a carpet. Various results including the physical properties of the carpet are as shown in No. 111.

Raw fiber cut pile metted. Pile yarn Ny4in BOF!
80G denier, pile length γ ■ writing degree "/32 gauge 8 stitches, -1 cft cloth PP7 thread plain weave 4 stitches, Latex Numata Chemical @ @ 88B Latex Tumpakundo viscosity 2
o,oooops assg8. ! ! 1.Next base fabric installation condition, storage amount 1.1SkII/1j, drying open temperature 1! io@c.

Comparative Example 7 Example 1 except that the first layer of woven cloth was raised RV10V■3
Do the same thing. The results are shown in Table 1A.

Comparative Example 8 The same procedure as in Example 1 was carried out except that 11 cloth raised t1 stage 1tRV10V-3 and the 281st raised cloth was set to Rma/OV-3. The results are shown in Table 2.

Example 5 The woven fabric is raised using a conventional raising machine (Ki) for ironwork @1illKP-
The process was carried out in the same manner as in Example 1, except that the process was carried out using υ24110-L Aicho 21K), and the results are shown in Table 1.

Example 6 For 60 stitches of fabric napping, put a nand paper on the front and use a napping roll to raise 2 steps with contact angle of 60 @ 8 mm and 10 mm = 50 and 1
6. Surprise comparison was performed in the same manner as in Example 1. The result is Il
l, as shown in Table 1.

Example 7 Wrap 60 mesh sandpaper around the nap of the woven fabric and get it up! The three-stage raised binding process was carried out in the same manner as in Example 1, except that the step of using RVloV-20 at a contact angle of 60° was first performed using @■-ru. The results are shown in Table 1.

Comparative Example 9 The fabric was raised in the same manner as in Example 1, except that the fabric was raised with 60 mesh sandpaper and the fabric was raised in two stages with a contact angle of 5° and RV10V gourd 50.

The results are shown in Table 1.

Example 8 The karami weave was used as a plain weave, and the Hirin was carried out in the same manner as in Example 1. The results are as shown in No. 111.

Example 9 The same procedure as in Example 1 was carried out except that polyester/saw spun yarn was used as the weft. The results are here! As shown.

Comparative Example 10 The procedure was carried out in the same manner as in Example 1, except that a defibrated yarn that was not brushed was used. The results are shown in Table 2.

Comparative Example 11 Same as Example 1 except that the napping process after the karami weaving tip is not performed.
Do the same thing. The results are shown in 2nd percent.

Comparative Example 12 A conventionally used 70Z shade was used as the secondary base fabric, and the fabrication was carried out in the same manner as in Example 1. The results are shown in Table 2.

Example 8 The same procedure as in Example 1 was carried out except that the leno weave was made plain fiber glossy. The results are shown in Table 1.

Example 9 Hirin uses polyester/sew spun yarn as the weft! I! The procedure was carried out in the same manner as in Example 1, and the results are shown in Table 1.

[Brief explanation of drawings]

Figures 1 and 2 are plan views of the carpet base fabric;
Figure 11I1 is a plan view of nine pieces made by brushing polypropylene defibrated yarn to make it into a weft, leno-weaving it with two polypropylene flat yarns, and then brushing it.
The figure is a plan view of a plain weave made with the same weft and warp yarns as in Fig. 1 and further processed with a knitting process, and Fig. 3 is a side view of the knitting process using an auxiliary needle cloth for raising. l... Weft, 2... Warp, 3... Wool splitting cloth,
4...Rotating wheel, 5...Textile, 6...Touchba Applicant Showa Denki Complete Company □ Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] A base fabric for a carpet, which is made by using a raised yarn of 1,000 to 4,000 deniers as the weft, and a thermo-wearable resin flat yarn with a width-to-thickness ratio of 20 to 7 seconds as the warp, which is also processed after fiber production.